Merge pull request #581 from Shrugs/feat/minor-additions

Minor standards and cleanup additions.

.env.example

+# configure your infura api key (not technically required)
+INFURA_API_KEY=
+
+# change the mnemonic that your hd wallet is seeded with
+MNEMONIC=

.eslintrc

+{
+  "extends" : [
+    "standard",
+    "plugin:promise/recommended"
+  ],
+  "plugins": [
+    "promise"
+  ],
+  "env": {
+    "browser" : true,
+    "node"    : true,
+    "mocha"   : true,
+    "jest"    : true
+  },
+  "globals" : {
+    "artifacts": false,
+    "contract": false,
+    "assert": false,
+    "web3": false
+  },
+  "rules": {
+
+    // Strict mode
+    "strict": [2, "global"],
+
+    // Code style
+    "indent": [2, 2],
+    "quotes": [2, "single"],
+    "semi": ["error", "always"],
+    "space-before-function-paren": ["error", "always"],
+    "no-use-before-define": 0,
+    "eqeqeq": [2, "smart"],
+    "dot-notation": [2, {"allowKeywords": true, "allowPattern": ""}],
+    "no-redeclare": [2, {"builtinGlobals": true}],
+    "no-trailing-spaces": [2, { "skipBlankLines": true }],
+    "eol-last": 1,
+    "comma-spacing": [2, {"before": false, "after": true}],
+    "camelcase": [2, {"properties": "always"}],
+    "no-mixed-spaces-and-tabs": [2, "smart-tabs"],
+    "comma-dangle": [1, "always-multiline"],
+    "no-dupe-args": 2,
+    "no-dupe-keys": 2,
+    "no-debugger": 0,
+    "no-undef": 2,
+    "object-curly-spacing": [2, "always"],
+    "max-len": [2, 120, 2],
+    "generator-star-spacing": ["error", "before"],
+    "promise/avoid-new": 0,
+    "promise/always-return": 0
+  }
+}

.gitignore

 *.swp
 *.swo
-node_modules/
-build/
-.DS_Store/
-/coverage
-coverage.json
+
+# Logs
+logs
+*.log
+
+# Runtime data
+pids
+*.pid
+*.seed
 allFiredEvents
 scTopics
+
+# Coverage directory used by tools like istanbul
+coverage
+coverage.json
+
+# node-waf configuration
+.lock-wscript
+
+# Dependency directory
+node_modules
+
+# Debug log from npm
+npm-debug.log
+
+# local env variables
+.env
+
+# truffle build directory
+build/
+
+# lol macs
+.DS_Store/

.travis.yml

@@ -10,7 +10,8 @@ cache:
 before_script:
   - truffle version
 script:
-  - npm test
+  - npm run lint
+  - npm run test
 notifications:
   slack:
     rooms:

migrations/1_initial_migration.js

-var Migrations = artifacts.require("./Migrations.sol");
+var Migrations = artifacts.require('./Migrations.sol');
 
-module.exports = function(deployer) {
+module.exports = function (deployer) {
   deployer.deploy(Migrations);
 };

migrations/2_deploy_contracts.js

-//var Ownable = artifacts.require("ownership/Ownable.sol");
+// var Ownable = artifacts.require("ownership/Ownable.sol");
 
-module.exports = function(deployer) {
-  //deployer.deploy(Ownable);
+// NOTE: Use this file to easily deploy the contracts you're writing.
+//   (but make sure to reset this file before committing
+//    with `git checkout HEAD -- migrations/2_deploy_contracts.js`)
+
+module.exports = function (deployer) {
+  // deployer.deploy(Ownable);
 };

package.json

@@ -4,6 +4,7 @@
   "description": "Secure Smart Contract library for Solidity",
   "scripts": {
     "test": "scripts/test.sh",
+    "lint": "eslint .",
     "console": "truffle console",
     "coverage": "scripts/coverage.sh"
   },
@@ -35,11 +36,20 @@
     "chai-as-promised": "^7.0.0",
     "chai-bignumber": "^2.0.0",
     "coveralls": "^2.13.1",
-    "ethereumjs-util": "^5.1.2",
+    "eslint": "^4.11.0",
+    "eslint-config-standard": "^10.2.1",
+    "eslint-plugin-import": "^2.8.0",
+    "eslint-plugin-node": "^5.2.1",
+    "eslint-plugin-promise": "^3.6.0",
+    "eslint-plugin-standard": "^3.0.1",
     "ethereumjs-testrpc": "^6.0.1",
+    "ethereumjs-util": "^5.1.2",
     "mocha-lcov-reporter": "^1.3.0",
     "solidity-coverage": "^0.2.2",
     "truffle": "^4.0.0",
     "truffle-hdwallet-provider": "0.0.3"
+  },
+  "dependencies": {
+    "dotenv": "^4.0.0"
   }
 }

test/.eslintrc

+{
+    "rules": {
+        "no-unused-expressions": 0
+    }
+}

test/BasicToken.js → test/BasicToken.test.js

 const assertRevert = require('./helpers/assertRevert');
 
-var BasicTokenMock = artifacts.require("./helpers/BasicTokenMock.sol");
+var BasicTokenMock = artifacts.require('./mocks/BasicTokenMock.sol');
 
-contract('BasicToken', function(accounts) {
-
-  it("should return the correct totalSupply after construction", async function() {
+contract('BasicToken', function (accounts) {
+  it('should return the correct totalSupply after construction', async function () {
     let token = await BasicTokenMock.new(accounts[0], 100);
     let totalSupply = await token.totalSupply();
 
     assert.equal(totalSupply, 100);
-  })
+  });
 
-  it("should return correct balances after transfer", async function(){
+  it('should return correct balances after transfer', async function () {
     let token = await BasicTokenMock.new(accounts[0], 100);
-    let transfer = await token.transfer(accounts[1], 100);
+    await token.transfer(accounts[1], 100);
 
     let firstAccountBalance = await token.balanceOf(accounts[0]);
     assert.equal(firstAccountBalance, 0);
@@ -22,24 +21,23 @@ contract('BasicToken', function(accounts) {
     assert.equal(secondAccountBalance, 100);
   });
 
-  it('should throw an error when trying to transfer more than balance', async function() {
+  it('should throw an error when trying to transfer more than balance', async function () {
     let token = await BasicTokenMock.new(accounts[0], 100);
     try {
-      let transfer = await token.transfer(accounts[1], 101);
+      await token.transfer(accounts[1], 101);
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
   });
 
-  it('should throw an error when trying to transfer to 0x0', async function() {
+  it('should throw an error when trying to transfer to 0x0', async function () {
     let token = await BasicTokenMock.new(accounts[0], 100);
     try {
-      let transfer = await token.transfer(0x0, 100);
+      await token.transfer(0x0, 100);
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
   });
-
 });

test/Bounty.js → test/Bounty.test.js

-'use strict';
 
-let sendReward = function(sender, receiver, value){
+let sendReward = function (sender, receiver, value) {
   web3.eth.sendTransaction({
-    from:sender,
-    to:receiver,
-    value: value
+    from: sender,
+    to: receiver,
+    value: value,
   });
 };
-var SecureTargetBounty = artifacts.require('helpers/SecureTargetBounty.sol');
-var InsecureTargetBounty = artifacts.require('helpers/InsecureTargetBounty.sol');
+var SecureTargetBounty = artifacts.require('mocks/SecureTargetBounty.sol');
+var InsecureTargetBounty = artifacts.require('mocks/InsecureTargetBounty.sol');
 
-function awaitEvent(event, handler) {
+function awaitEvent (event, handler) {
   return new Promise((resolve, reject) => {
-    function wrappedHandler(...args) {
+    function wrappedHandler (...args) {
       Promise.resolve(handler(...args)).then(resolve).catch(reject);
     }
 
@@ -20,9 +19,8 @@ function awaitEvent(event, handler) {
   });
 }
 
-contract('Bounty', function(accounts) {
-
-  it('sets reward', async function() {
+contract('Bounty', function (accounts) {
+  it('sets reward', async function () {
     let owner = accounts[0];
     let reward = web3.toWei(1, 'ether');
     let bounty = await SecureTargetBounty.new();
@@ -31,7 +29,7 @@ contract('Bounty', function(accounts) {
     assert.equal(reward, web3.eth.getBalance(bounty.address).toNumber());
   });
 
-  it('empties itself when destroyed', async function(){
+  it('empties itself when destroyed', async function () {
     let owner = accounts[0];
     let reward = web3.toWei(1, 'ether');
     let bounty = await SecureTargetBounty.new();
@@ -43,16 +41,15 @@ contract('Bounty', function(accounts) {
     assert.equal(0, web3.eth.getBalance(bounty.address).toNumber());
   });
 
-  describe('Against secure contract', function(){
-
-    it('cannot claim reward', async function(){
+  describe('Against secure contract', function () {
+    it('cannot claim reward', async function () {
       let owner = accounts[0];
       let researcher = accounts[1];
       let reward = web3.toWei(1, 'ether');
       let bounty = await SecureTargetBounty.new();
       let event = bounty.TargetCreated({});
 
-      let watcher = async function(err, result) {
+      let watcher = async function (err, result) {
         event.stopWatching();
         if (err) { throw err; }
 
@@ -63,35 +60,34 @@ contract('Bounty', function(accounts) {
           web3.eth.getBalance(bounty.address).toNumber());
 
         try {
-          await bounty.claim(targetAddress, {from:researcher});
+          await bounty.claim(targetAddress, { from: researcher });
           assert.isTrue(false); // should never reach here
-        } catch(error) {
+        } catch (error) {
           let reClaimedBounty = await bounty.claimed.call();
           assert.isFalse(reClaimedBounty);
-
         }
         try {
-          await bounty.withdrawPayments({from:researcher});
+          await bounty.withdrawPayments({ from: researcher });
           assert.isTrue(false); // should never reach here
         } catch (err) {
           assert.equal(reward,
             web3.eth.getBalance(bounty.address).toNumber());
         }
       };
-      bounty.createTarget({from:researcher});
+      bounty.createTarget({ from: researcher });
       await awaitEvent(event, watcher);
     });
   });
 
-  describe('Against broken contract', function(){
-    it('claims reward', async function() {
+  describe('Against broken contract', function () {
+    it('claims reward', async function () {
       let owner = accounts[0];
       let researcher = accounts[1];
       let reward = web3.toWei(1, 'ether');
       let bounty = await InsecureTargetBounty.new();
       let event = bounty.TargetCreated({});
 
-      let watcher = async function(err, result) {
+      let watcher = async function (err, result) {
         event.stopWatching();
         if (err) { throw err; }
         let targetAddress = result.args.createdAddress;
@@ -99,16 +95,16 @@ contract('Bounty', function(accounts) {
 
         assert.equal(reward, web3.eth.getBalance(bounty.address).toNumber());
 
-        await bounty.claim(targetAddress, {from:researcher});
+        await bounty.claim(targetAddress, { from: researcher });
         let claim = await bounty.claimed.call();
 
         assert.isTrue(claim);
 
-        await bounty.withdrawPayments({from:researcher});
+        await bounty.withdrawPayments({ from: researcher });
 
         assert.equal(0, web3.eth.getBalance(bounty.address).toNumber());
       };
-      bounty.createTarget({from:researcher});
+      bounty.createTarget({ from: researcher });
       await awaitEvent(event, watcher);
     });
   });

test/BurnableToken.js

-'use strict'
-
-const EVMRevert = require('./helpers/EVMRevert.js')
-const BurnableTokenMock = artifacts.require("./helpers/BurnableTokenMock.sol")
-const BigNumber = web3.BigNumber
-
-require('chai')
-  .use(require('chai-as-promised'))
-  .use(require('chai-bignumber')(BigNumber))
-  .should()
-
-const expect = require('chai').expect
-
-contract('BurnableToken', function (accounts) {
-    let token
-    let expectedTokenSupply = new BigNumber(999)
-
-    beforeEach(async function () {
-        token = await BurnableTokenMock.new(accounts[0], 1000)
-    })
-
-    it('owner should be able to burn tokens', async function () {
-        const { logs } = await token.burn(1, { from: accounts[0] })
-
-        const balance = await token.balanceOf(accounts[0])
-        balance.should.be.bignumber.equal(expectedTokenSupply)
-
-        const totalSupply = await token.totalSupply()
-        totalSupply.should.be.bignumber.equal(expectedTokenSupply)
-
-        const event = logs.find(e => e.event === 'Burn')
-        expect(event).to.exist
-    })
-
-    it('cannot burn more tokens than your balance', async function () {
-        await token.burn(2000, { from: accounts[0] })
-        .should.be.rejectedWith(EVMRevert)
-    })
-})

test/BurnableToken.test.js

+
+const EVMRevert = require('./helpers/EVMRevert.js');
+const BurnableTokenMock = artifacts.require('./mocks/BurnableTokenMock.sol');
+const BigNumber = web3.BigNumber;
+
+require('chai')
+  .use(require('chai-as-promised'))
+  .use(require('chai-bignumber')(BigNumber))
+  .should();
+
+const expect = require('chai').expect;
+
+contract('BurnableToken', function (accounts) {
+  let token;
+  let expectedTokenSupply = new BigNumber(999);
+
+  beforeEach(async function () {
+    token = await BurnableTokenMock.new(accounts[0], 1000);
+  });
+
+  it('owner should be able to burn tokens', async function () {
+    const { logs } = await token.burn(1, { from: accounts[0] });
+
+    const balance = await token.balanceOf(accounts[0]);
+    balance.should.be.bignumber.equal(expectedTokenSupply);
+
+    const totalSupply = await token.totalSupply();
+    totalSupply.should.be.bignumber.equal(expectedTokenSupply);
+
+    const event = logs.find(e => e.event === 'Burn');
+    expect(event).to.exist;
+  });
+
+  it('cannot burn more tokens than your balance', async function () {
+    await token.burn(2000, { from: accounts[0] })
+      .should.be.rejectedWith(EVMRevert);
+  });
+});

test/CanReclaimToken.js → test/CanReclaimToken.test.js

-'use strict';
+
 import expectThrow from './helpers/expectThrow';
-import toPromise from './helpers/toPromise';
+
 const CanReclaimToken = artifacts.require('../contracts/ownership/CanReclaimToken.sol');
-const BasicTokenMock = artifacts.require("./helpers/BasicTokenMock.sol");
+const BasicTokenMock = artifacts.require('./mocks/BasicTokenMock.sol');
 
-contract('CanReclaimToken', function(accounts) {
+contract('CanReclaimToken', function (accounts) {
   let token = null;
   let canReclaimToken = null;
 
-  beforeEach(async function() {
+  beforeEach(async function () {
     // Create contract and token
     token = await BasicTokenMock.new(accounts[0], 100);
     canReclaimToken = await CanReclaimToken.new();
@@ -18,7 +18,7 @@ contract('CanReclaimToken', function(accounts) {
     assert.equal(startBalance, 10);
   });
 
-  it('should allow owner to reclaim tokens', async function() {
+  it('should allow owner to reclaim tokens', async function () {
     const ownerStartBalance = await token.balanceOf(accounts[0]);
     await canReclaimToken.reclaimToken(token.address);
     const ownerFinalBalance = await token.balanceOf(accounts[0]);
@@ -27,9 +27,9 @@ contract('CanReclaimToken', function(accounts) {
     assert.equal(ownerFinalBalance - ownerStartBalance, 10);
   });
 
-  it('should allow only owner to reclaim tokens', async function() {
+  it('should allow only owner to reclaim tokens', async function () {
     await expectThrow(
-      canReclaimToken.reclaimToken(token.address, {from: accounts[1]}),
+      canReclaimToken.reclaimToken(token.address, { from: accounts[1] }),
     );
   });
 });

test/CappedCrowdsale.js

-import ether from './helpers/ether'
-import {advanceBlock} from './helpers/advanceToBlock'
-import {increaseTimeTo, duration} from './helpers/increaseTime'
-import latestTime from './helpers/latestTime'
-import EVMRevert from './helpers/EVMRevert'
-
-const BigNumber = web3.BigNumber
-
-require('chai')
-  .use(require('chai-as-promised'))
-  .use(require('chai-bignumber')(BigNumber))
-  .should()
-
-const CappedCrowdsale = artifacts.require('./helpers/CappedCrowdsaleImpl.sol')
-const MintableToken = artifacts.require('MintableToken')
-
-contract('CappedCrowdsale', function ([_, wallet]) {
-
-  const rate = new BigNumber(1000)
-
-  const cap = ether(300)
-  const lessThanCap = ether(60)
-
-  before(async function() {
-    //Advance to the next block to correctly read time in the solidity "now" function interpreted by testrpc
-    await advanceBlock()
-  })
-
-  beforeEach(async function () {
-    this.startTime = latestTime() + duration.weeks(1);
-    this.endTime =   this.startTime + duration.weeks(1);
-
-    this.crowdsale = await CappedCrowdsale.new(this.startTime, this.endTime, rate, wallet, cap)
-
-    this.token = MintableToken.at(await this.crowdsale.token())
-  })
-
-  describe('creating a valid crowdsale', function () {
-
-    it('should fail with zero cap', async function () {
-      await CappedCrowdsale.new(this.startTime, this.endTime, rate, wallet, 0).should.be.rejectedWith(EVMRevert);
-    })
-
-  });
-
-  describe('accepting payments', function () {
-
-    beforeEach(async function () {
-      await increaseTimeTo(this.startTime)
-    })
-
-    it('should accept payments within cap', async function () {
-      await this.crowdsale.send(cap.minus(lessThanCap)).should.be.fulfilled
-      await this.crowdsale.send(lessThanCap).should.be.fulfilled
-    })
-
-    it('should reject payments outside cap', async function () {
-      await this.crowdsale.send(cap)
-      await this.crowdsale.send(1).should.be.rejectedWith(EVMRevert)
-    })
-
-    it('should reject payments that exceed cap', async function () {
-      await this.crowdsale.send(cap.plus(1)).should.be.rejectedWith(EVMRevert)
-    })
-
-  })
-
-  describe('ending', function () {
-
-    beforeEach(async function () {
-      await increaseTimeTo(this.startTime)
-    })
-
-    it('should not be ended if under cap', async function () {
-      let hasEnded = await this.crowdsale.hasEnded()
-      hasEnded.should.equal(false)
-      await this.crowdsale.send(lessThanCap)
-      hasEnded = await this.crowdsale.hasEnded()
-      hasEnded.should.equal(false)
-    })
-
-    it('should not be ended if just under cap', async function () {
-      await this.crowdsale.send(cap.minus(1))
-      let hasEnded = await this.crowdsale.hasEnded()
-      hasEnded.should.equal(false)
-    })
-
-    it('should be ended if cap reached', async function () {
-      await this.crowdsale.send(cap)
-      let hasEnded = await this.crowdsale.hasEnded()
-      hasEnded.should.equal(true)
-    })
-
-  })
-
-})

test/CappedCrowdsale.test.js

+import ether from './helpers/ether';
+import { advanceBlock } from './helpers/advanceToBlock';
+import { increaseTimeTo, duration } from './helpers/increaseTime';
+import latestTime from './helpers/latestTime';
+import EVMRevert from './helpers/EVMRevert';
+
+const BigNumber = web3.BigNumber;
+
+require('chai')
+  .use(require('chai-as-promised'))
+  .use(require('chai-bignumber')(BigNumber))
+  .should();
+
+const CappedCrowdsale = artifacts.require('./mocks/CappedCrowdsaleImpl.sol');
+const MintableToken = artifacts.require('MintableToken');
+
+contract('CappedCrowdsale', function ([_, wallet]) {
+  const rate = new BigNumber(1000);
+
+  const cap = ether(300);
+  const lessThanCap = ether(60);
+
+  before(async function () {
+    // Advance to the next block to correctly read time in the solidity "now" function interpreted by testrpc
+    await advanceBlock();
+  });
+
+  beforeEach(async function () {
+    this.startTime = latestTime() + duration.weeks(1);
+    this.endTime = this.startTime + duration.weeks(1);
+
+    this.crowdsale = await CappedCrowdsale.new(this.startTime, this.endTime, rate, wallet, cap);
+
+    this.token = MintableToken.at(await this.crowdsale.token());
+  });
+
+  describe('creating a valid crowdsale', function () {
+    it('should fail with zero cap', async function () {
+      await CappedCrowdsale.new(this.startTime, this.endTime, rate, wallet, 0).should.be.rejectedWith(EVMRevert);
+    });
+  });
+
+  describe('accepting payments', function () {
+    beforeEach(async function () {
+      await increaseTimeTo(this.startTime);
+    });
+
+    it('should accept payments within cap', async function () {
+      await this.crowdsale.send(cap.minus(lessThanCap)).should.be.fulfilled;
+      await this.crowdsale.send(lessThanCap).should.be.fulfilled;
+    });
+
+    it('should reject payments outside cap', async function () {
+      await this.crowdsale.send(cap);
+      await this.crowdsale.send(1).should.be.rejectedWith(EVMRevert);
+    });
+
+    it('should reject payments that exceed cap', async function () {
+      await this.crowdsale.send(cap.plus(1)).should.be.rejectedWith(EVMRevert);
+    });
+  });
+
+  describe('ending', function () {
+    beforeEach(async function () {
+      await increaseTimeTo(this.startTime);
+    });
+
+    it('should not be ended if under cap', async function () {
+      let hasEnded = await this.crowdsale.hasEnded();
+      hasEnded.should.equal(false);
+      await this.crowdsale.send(lessThanCap);
+      hasEnded = await this.crowdsale.hasEnded();
+      hasEnded.should.equal(false);
+    });
+
+    it('should not be ended if just under cap', async function () {
+      await this.crowdsale.send(cap.minus(1));
+      let hasEnded = await this.crowdsale.hasEnded();
+      hasEnded.should.equal(false);
+    });
+
+    it('should be ended if cap reached', async function () {
+      await this.crowdsale.send(cap);
+      let hasEnded = await this.crowdsale.hasEnded();
+      hasEnded.should.equal(true);
+    });
+  });
+});

test/CappedToken.js → test/CappedToken.test.js

-'use strict';
 
 import expectThrow from './helpers/expectThrow';
 import ether from './helpers/ether';
-var CappedToken = artifacts.require('../contracts/Tokens/CappedToken.sol');
 
-const BigNumber = web3.BigNumber
+var CappedToken = artifacts.require('../contracts/Tokens/CappedToken.sol');
 
-contract('Capped', function(accounts) {
+contract('Capped', function (accounts) {
   const cap = ether(1000);
 
   let token;
 
-  beforeEach(async function() {
+  beforeEach(async function () {
     token = await CappedToken.new(cap);
-  })
+  });
 
-  it('should start with the correct cap', async function() {
+  it('should start with the correct cap', async function () {
     let _cap = await token.cap();
 
     assert(cap.eq(_cap));
-  })
+  });
 
-  it('should mint when amount is less than cap', async function() {
+  it('should mint when amount is less than cap', async function () {
     const result = await token.mint(accounts[0], 100);
     assert.equal(result.logs[0].event, 'Mint');
-  })
+  });
 
-  it('should fail to mint if the ammount exceeds the cap', async function() {
+  it('should fail to mint if the ammount exceeds the cap', async function () {
     await token.mint(accounts[0], cap.sub(1));
     await expectThrow(token.mint(accounts[0], 100));
-  })
+  });
 
-  it('should fail to mint after cap is reached', async function() {
+  it('should fail to mint after cap is reached', async function () {
     await token.mint(accounts[0], cap);
     await expectThrow(token.mint(accounts[0], 1));
-  })
-
+  });
 });

test/Claimable.js → test/Claimable.test.js

-'use strict';
+
 const assertRevert = require('./helpers/assertRevert');
 
 var Claimable = artifacts.require('../contracts/ownership/Claimable.sol');
 
-contract('Claimable', function(accounts) {
+contract('Claimable', function (accounts) {
   let claimable;
 
-  beforeEach(async function() {
+  beforeEach(async function () {
     claimable = await Claimable.new();
   });
 
-  it('should have an owner', async function() {
+  it('should have an owner', async function () {
     let owner = await claimable.owner();
     assert.isTrue(owner !== 0);
   });
 
-  it('changes pendingOwner after transfer', async function() {
+  it('changes pendingOwner after transfer', async function () {
     let newOwner = accounts[1];
     await claimable.transferOwnership(newOwner);
     let pendingOwner = await claimable.pendingOwner();
@@ -23,23 +23,23 @@ contract('Claimable', function(accounts) {
     assert.isTrue(pendingOwner === newOwner);
   });
 
-  it('should prevent to claimOwnership from no pendingOwner', async function() {
+  it('should prevent to claimOwnership from no pendingOwner', async function () {
     try {
-      await claimable.claimOwnership({from: accounts[2]});
+      await claimable.claimOwnership({ from: accounts[2] });
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
   });
 
-  it('should prevent non-owners from transfering', async function() {
+  it('should prevent non-owners from transfering', async function () {
     const other = accounts[2];
     const owner = await claimable.owner.call();
     assert.isTrue(owner !== other);
     try {
-      await claimable.transferOwnership(other, {from: other});
+      await claimable.transferOwnership(other, { from: other });
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
   });
@@ -52,8 +52,8 @@ contract('Claimable', function(accounts) {
       await claimable.transferOwnership(newOwner);
     });
 
-    it('changes allow pending owner to claim ownership', async function() {
-      await claimable.claimOwnership({from: newOwner});
+    it('changes allow pending owner to claim ownership', async function () {
+      await claimable.claimOwnership({ from: newOwner });
       let owner = await claimable.owner();
 
       assert.isTrue(owner === newOwner);

test/Contactable.js → test/Contactable.test.js

-'use strict';
-const assertRevert = require('./helpers/assertRevert');
 
 var Contactable = artifacts.require('../contracts/ownership/Contactable.sol');
 
-contract('Contactable', function(accounts) {
+contract('Contactable', function (accounts) {
   let contactable;
 
-  beforeEach(async function() {
+  beforeEach(async function () {
     contactable = await Contactable.new();
   });
 
-  it('should have an empty contact info', async function() {
+  it('should have an empty contact info', async function () {
     let info = await contactable.contactInformation();
-    assert.isTrue(info == "");
+    assert.isTrue(info === '');
   });
 
   describe('after setting the contact information', function () {
-    let contactInfo = "contact information"
+    let contactInfo = 'contact information';
 
     beforeEach(async function () {
       await contactable.setContactInformation(contactInfo);
     });
 
-    it('should return the setted contact information', async function() {
+    it('should return the setted contact information', async function () {
       let info = await contactable.contactInformation();
       assert.isTrue(info === contactInfo);
-   });
+    });
   });
 });

test/Crowdsale.js

-import ether from './helpers/ether'
-import {advanceBlock} from './helpers/advanceToBlock'
-import {increaseTimeTo, duration} from './helpers/increaseTime'
-import latestTime from './helpers/latestTime'
-import EVMRevert from './helpers/EVMRevert'
-
-const BigNumber = web3.BigNumber
-
-const should = require('chai')
-  .use(require('chai-as-promised'))
-  .use(require('chai-bignumber')(BigNumber))
-  .should()
-
-const Crowdsale = artifacts.require('Crowdsale')
-const MintableToken = artifacts.require('MintableToken')
-
-contract('Crowdsale', function ([_, investor, wallet, purchaser]) {
-
-  const rate = new BigNumber(1000)
-  const value = ether(42)
-
-  const expectedTokenAmount = rate.mul(value)
-
-  before(async function() {
-    //Advance to the next block to correctly read time in the solidity "now" function interpreted by testrpc
-    await advanceBlock()
-  })
-
-  beforeEach(async function () {
-    this.startTime = latestTime() + duration.weeks(1);
-    this.endTime =   this.startTime + duration.weeks(1);
-    this.afterEndTime = this.endTime + duration.seconds(1)
-
-
-    this.crowdsale = await Crowdsale.new(this.startTime, this.endTime, rate, wallet)
-
-    this.token = MintableToken.at(await this.crowdsale.token())
-  })
-
-  it('should be token owner', async function () {
-    const owner = await this.token.owner()
-    owner.should.equal(this.crowdsale.address)
-  })
-
-  it('should be ended only after end', async function () {
-    let ended = await this.crowdsale.hasEnded()
-    ended.should.equal(false)
-    await increaseTimeTo(this.afterEndTime)
-    ended = await this.crowdsale.hasEnded()
-    ended.should.equal(true)
-  })
-
-  describe('accepting payments', function () {
-
-    it('should reject payments before start', async function () {
-      await this.crowdsale.send(value).should.be.rejectedWith(EVMRevert)
-      await this.crowdsale.buyTokens(investor, {from: purchaser, value: value}).should.be.rejectedWith(EVMRevert)
-    })
-
-    it('should accept payments after start', async function () {
-      await increaseTimeTo(this.startTime)
-      await this.crowdsale.send(value).should.be.fulfilled
-      await this.crowdsale.buyTokens(investor, {value: value, from: purchaser}).should.be.fulfilled
-    })
-
-    it('should reject payments after end', async function () {
-      await increaseTimeTo(this.afterEndTime)
-      await this.crowdsale.send(value).should.be.rejectedWith(EVMRevert)
-      await this.crowdsale.buyTokens(investor, {value: value, from: purchaser}).should.be.rejectedWith(EVMRevert)
-    })
-
-  })
-
-  describe('high-level purchase', function () {
-
-    beforeEach(async function() {
-      await increaseTimeTo(this.startTime)
-    })
-
-    it('should log purchase', async function () {
-      const {logs} = await this.crowdsale.sendTransaction({value: value, from: investor})
-
-      const event = logs.find(e => e.event === 'TokenPurchase')
-
-      should.exist(event)
-      event.args.purchaser.should.equal(investor)
-      event.args.beneficiary.should.equal(investor)
-      event.args.value.should.be.bignumber.equal(value)
-      event.args.amount.should.be.bignumber.equal(expectedTokenAmount)
-    })
-
-    it('should increase totalSupply', async function () {
-      await this.crowdsale.send(value)
-      const totalSupply = await this.token.totalSupply()
-      totalSupply.should.be.bignumber.equal(expectedTokenAmount)
-    })
-
-    it('should assign tokens to sender', async function () {
-      await this.crowdsale.sendTransaction({value: value, from: investor})
-      let balance = await this.token.balanceOf(investor);
-      balance.should.be.bignumber.equal(expectedTokenAmount)
-    })
-
-    it('should forward funds to wallet', async function () {
-      const pre = web3.eth.getBalance(wallet)
-      await this.crowdsale.sendTransaction({value, from: investor})
-      const post = web3.eth.getBalance(wallet)
-      post.minus(pre).should.be.bignumber.equal(value)
-    })
-
-  })
-
-  describe('low-level purchase', function () {
-
-    beforeEach(async function() {
-      await increaseTimeTo(this.startTime)
-    })
-
-    it('should log purchase', async function () {
-      const {logs} = await this.crowdsale.buyTokens(investor, {value: value, from: purchaser})
-
-      const event = logs.find(e => e.event === 'TokenPurchase')
-
-      should.exist(event)
-      event.args.purchaser.should.equal(purchaser)
-      event.args.beneficiary.should.equal(investor)
-      event.args.value.should.be.bignumber.equal(value)
-      event.args.amount.should.be.bignumber.equal(expectedTokenAmount)
-    })
-
-    it('should increase totalSupply', async function () {
-      await this.crowdsale.buyTokens(investor, {value, from: purchaser})
-      const totalSupply = await this.token.totalSupply()
-      totalSupply.should.be.bignumber.equal(expectedTokenAmount)
-    })
-
-    it('should assign tokens to beneficiary', async function () {
-      await this.crowdsale.buyTokens(investor, {value, from: purchaser})
-      const balance = await this.token.balanceOf(investor)
-      balance.should.be.bignumber.equal(expectedTokenAmount)
-    })
-
-    it('should forward funds to wallet', async function () {
-      const pre = web3.eth.getBalance(wallet)
-      await this.crowdsale.buyTokens(investor, {value, from: purchaser})
-      const post = web3.eth.getBalance(wallet)
-      post.minus(pre).should.be.bignumber.equal(value)
-    })
-
-  })
-
-})

test/Crowdsale.test.js

+import ether from './helpers/ether';
+import { advanceBlock } from './helpers/advanceToBlock';
+import { increaseTimeTo, duration } from './helpers/increaseTime';
+import latestTime from './helpers/latestTime';
+import EVMRevert from './helpers/EVMRevert';
+
+const BigNumber = web3.BigNumber;
+
+const should = require('chai')
+  .use(require('chai-as-promised'))
+  .use(require('chai-bignumber')(BigNumber))
+  .should();
+
+const Crowdsale = artifacts.require('Crowdsale');
+const MintableToken = artifacts.require('MintableToken');
+
+contract('Crowdsale', function ([_, investor, wallet, purchaser]) {
+  const rate = new BigNumber(1000);
+  const value = ether(42);
+
+  const expectedTokenAmount = rate.mul(value);
+
+  before(async function () {
+    // Advance to the next block to correctly read time in the solidity "now" function interpreted by testrpc
+    await advanceBlock();
+  });
+
+  beforeEach(async function () {
+    this.startTime = latestTime() + duration.weeks(1);
+    this.endTime = this.startTime + duration.weeks(1);
+    this.afterEndTime = this.endTime + duration.seconds(1);
+
+    this.crowdsale = await Crowdsale.new(this.startTime, this.endTime, rate, wallet);
+
+    this.token = MintableToken.at(await this.crowdsale.token());
+  });
+
+  it('should be token owner', async function () {
+    const owner = await this.token.owner();
+    owner.should.equal(this.crowdsale.address);
+  });
+
+  it('should be ended only after end', async function () {
+    let ended = await this.crowdsale.hasEnded();
+    ended.should.equal(false);
+    await increaseTimeTo(this.afterEndTime);
+    ended = await this.crowdsale.hasEnded();
+    ended.should.equal(true);
+  });
+
+  describe('accepting payments', function () {
+    it('should reject payments before start', async function () {
+      await this.crowdsale.send(value).should.be.rejectedWith(EVMRevert);
+      await this.crowdsale.buyTokens(investor, { from: purchaser, value: value }).should.be.rejectedWith(EVMRevert);
+    });
+
+    it('should accept payments after start', async function () {
+      await increaseTimeTo(this.startTime);
+      await this.crowdsale.send(value).should.be.fulfilled;
+      await this.crowdsale.buyTokens(investor, { value: value, from: purchaser }).should.be.fulfilled;
+    });
+
+    it('should reject payments after end', async function () {
+      await increaseTimeTo(this.afterEndTime);
+      await this.crowdsale.send(value).should.be.rejectedWith(EVMRevert);
+      await this.crowdsale.buyTokens(investor, { value: value, from: purchaser }).should.be.rejectedWith(EVMRevert);
+    });
+  });
+
+  describe('high-level purchase', function () {
+    beforeEach(async function () {
+      await increaseTimeTo(this.startTime);
+    });
+
+    it('should log purchase', async function () {
+      const { logs } = await this.crowdsale.sendTransaction({ value: value, from: investor });
+
+      const event = logs.find(e => e.event === 'TokenPurchase');
+
+      should.exist(event);
+      event.args.purchaser.should.equal(investor);
+      event.args.beneficiary.should.equal(investor);
+      event.args.value.should.be.bignumber.equal(value);
+      event.args.amount.should.be.bignumber.equal(expectedTokenAmount);
+    });
+
+    it('should increase totalSupply', async function () {
+      await this.crowdsale.send(value);
+      const totalSupply = await this.token.totalSupply();
+      totalSupply.should.be.bignumber.equal(expectedTokenAmount);
+    });
+
+    it('should assign tokens to sender', async function () {
+      await this.crowdsale.sendTransaction({ value: value, from: investor });
+      let balance = await this.token.balanceOf(investor);
+      balance.should.be.bignumber.equal(expectedTokenAmount);
+    });
+
+    it('should forward funds to wallet', async function () {
+      const pre = web3.eth.getBalance(wallet);
+      await this.crowdsale.sendTransaction({ value, from: investor });
+      const post = web3.eth.getBalance(wallet);
+      post.minus(pre).should.be.bignumber.equal(value);
+    });
+  });
+
+  describe('low-level purchase', function () {
+    beforeEach(async function () {
+      await increaseTimeTo(this.startTime);
+    });
+
+    it('should log purchase', async function () {
+      const { logs } = await this.crowdsale.buyTokens(investor, { value: value, from: purchaser });
+
+      const event = logs.find(e => e.event === 'TokenPurchase');
+
+      should.exist(event);
+      event.args.purchaser.should.equal(purchaser);
+      event.args.beneficiary.should.equal(investor);
+      event.args.value.should.be.bignumber.equal(value);
+      event.args.amount.should.be.bignumber.equal(expectedTokenAmount);
+    });
+
+    it('should increase totalSupply', async function () {
+      await this.crowdsale.buyTokens(investor, { value, from: purchaser });
+      const totalSupply = await this.token.totalSupply();
+      totalSupply.should.be.bignumber.equal(expectedTokenAmount);
+    });
+
+    it('should assign tokens to beneficiary', async function () {
+      await this.crowdsale.buyTokens(investor, { value, from: purchaser });
+      const balance = await this.token.balanceOf(investor);
+      balance.should.be.bignumber.equal(expectedTokenAmount);
+    });
+
+    it('should forward funds to wallet', async function () {
+      const pre = web3.eth.getBalance(wallet);
+      await this.crowdsale.buyTokens(investor, { value, from: purchaser });
+      const post = web3.eth.getBalance(wallet);
+      post.minus(pre).should.be.bignumber.equal(value);
+    });
+  });
+});

test/DayLimit.js → test/DayLimit.test.js

-'use strict';
-const assertRevert = require('./helpers/assertRevert');
-import latestTime from './helpers/latestTime'
-import {increaseTimeTo, duration} from './helpers/increaseTime'
 
-var DayLimitMock = artifacts.require('./helpers/DayLimitMock.sol');
+import latestTime from './helpers/latestTime';
+import { increaseTimeTo, duration } from './helpers/increaseTime';
+
+const assertRevert = require('./helpers/assertRevert');
 
-contract('DayLimit', function(accounts) {
+const DayLimitMock = artifacts.require('./mocks/DayLimitMock.sol');
 
+contract('DayLimit', function (accounts) {
   let dayLimit;
   let initLimit = 10;
 
-  beforeEach( async function() {
+  beforeEach(async function () {
     this.startTime = latestTime();
     dayLimit = await DayLimitMock.new(initLimit);
   });
 
-  it('should construct with the passed daily limit', async function() {
+  it('should construct with the passed daily limit', async function () {
     let dailyLimit = await dayLimit.dailyLimit();
     assert.equal(initLimit, dailyLimit);
   });
 
-  it('should be able to spend if daily limit is not reached', async function() {
+  it('should be able to spend if daily limit is not reached', async function () {
     await dayLimit.attemptSpend(8);
     let spentToday = await dayLimit.spentToday();
     assert.equal(spentToday, 8);
@@ -30,7 +30,7 @@ contract('DayLimit', function(accounts) {
     assert.equal(spentToday, 10);
   });
 
-  it('should prevent spending if daily limit is reached', async function() {
+  it('should prevent spending if daily limit is reached', async function () {
     await dayLimit.attemptSpend(8);
     let spentToday = await dayLimit.spentToday();
     assert.equal(spentToday, 8);
@@ -38,12 +38,12 @@ contract('DayLimit', function(accounts) {
     try {
       await dayLimit.attemptSpend(3);
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
   });
 
-  it('should allow spending if daily limit is reached and then set higher', async function() {
+  it('should allow spending if daily limit is reached and then set higher', async function () {
     await dayLimit.attemptSpend(8);
     let spentToday = await dayLimit.spentToday();
     assert.equal(spentToday, 8);
@@ -51,7 +51,7 @@ contract('DayLimit', function(accounts) {
     try {
       await dayLimit.attemptSpend(3);
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
     spentToday = await dayLimit.spentToday();
@@ -63,7 +63,7 @@ contract('DayLimit', function(accounts) {
     assert.equal(spentToday, 11);
   });
 
-  it('should allow spending if daily limit is reached and then amount spent is reset', async function() {
+  it('should allow spending if daily limit is reached and then amount spent is reset', async function () {
     await dayLimit.attemptSpend(8);
     let spentToday = await dayLimit.spentToday();
     assert.equal(spentToday, 8);
@@ -71,7 +71,7 @@ contract('DayLimit', function(accounts) {
     try {
       await dayLimit.attemptSpend(3);
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
     spentToday = await dayLimit.spentToday();
@@ -83,7 +83,7 @@ contract('DayLimit', function(accounts) {
     assert.equal(spentToday, 3);
   });
 
-  it('should allow spending if daily limit is reached and then the next has come', async function() {
+  it('should allow spending if daily limit is reached and then the next has come', async function () {
     let limit = 10;
     let dayLimit = await DayLimitMock.new(limit);
 
@@ -94,7 +94,7 @@ contract('DayLimit', function(accounts) {
     try {
       await dayLimit.attemptSpend(3);
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
     spentToday = await dayLimit.spentToday();
@@ -106,5 +106,4 @@ contract('DayLimit', function(accounts) {
     spentToday = await dayLimit.spentToday();
     assert.equal(spentToday, 3);
   });
-
 });

test/DelayedClaimble.js → test/DelayedClaimble.test.js

-'use strict';
 
 var DelayedClaimable = artifacts.require('../contracts/ownership/DelayedClaimable.sol');
 
-contract('DelayedClaimable', function(accounts) {
+contract('DelayedClaimable', function (accounts) {
   var delayedClaimable;
 
-  beforeEach(function() {
-    return DelayedClaimable.new().then(function(deployed) {
+  beforeEach(function () {
+    return DelayedClaimable.new().then(function (deployed) {
       delayedClaimable = deployed;
     });
   });
 
-  it('can set claim blocks', async function() {
+  it('can set claim blocks', async function () {
     await delayedClaimable.transferOwnership(accounts[2]);
     await delayedClaimable.setLimits(0, 1000);
     let end = await delayedClaimable.end();
@@ -20,7 +19,7 @@ contract('DelayedClaimable', function(accounts) {
     assert.equal(start, 0);
   });
 
-  it('changes pendingOwner after transfer successful', async function() {
+  it('changes pendingOwner after transfer successful', async function () {
     await delayedClaimable.transferOwnership(accounts[2]);
     await delayedClaimable.setLimits(0, 1000);
     let end = await delayedClaimable.end();
@@ -29,12 +28,12 @@ contract('DelayedClaimable', function(accounts) {
     assert.equal(start, 0);
     let pendingOwner = await delayedClaimable.pendingOwner();
     assert.equal(pendingOwner, accounts[2]);
-    await delayedClaimable.claimOwnership({from: accounts[2]});
+    await delayedClaimable.claimOwnership({ from: accounts[2] });
     let owner = await delayedClaimable.owner();
     assert.equal(owner, accounts[2]);
   });
 
-  it('changes pendingOwner after transfer fails', async function() {
+  it('changes pendingOwner after transfer fails', async function () {
     await delayedClaimable.transferOwnership(accounts[1]);
     await delayedClaimable.setLimits(100, 110);
     let end = await delayedClaimable.end();
@@ -45,7 +44,7 @@ contract('DelayedClaimable', function(accounts) {
     assert.equal(pendingOwner, accounts[1]);
     var err = null;
     try {
-      await delayedClaimable.claimOwnership({from: accounts[1]});
+      await delayedClaimable.claimOwnership({ from: accounts[1] });
     } catch (error) {
       err = error;
     }
@@ -54,7 +53,7 @@ contract('DelayedClaimable', function(accounts) {
     assert.isTrue(owner !== accounts[1]);
   });
 
-  it('set end and start invalid values fail', async function() {
+  it('set end and start invalid values fail', async function () {
     await delayedClaimable.transferOwnership(accounts[1]);
     var err = null;
     try {
@@ -64,5 +63,4 @@ contract('DelayedClaimable', function(accounts) {
     }
     assert.isFalse(err.message.search('revert') === -1);
   });
-
 });

test/Destructible.js → test/Destructible.test.js

-'use strict';
 
 var Destructible = artifacts.require('../contracts/lifecycle/Destructible.sol');
 require('./helpers/transactionMined.js');
 
-contract('Destructible', function(accounts) {
-
-  it('should send balance to owner after destruction', async function() {
-    let destructible = await Destructible.new({from: accounts[0], value: web3.toWei('10','ether')});
+contract('Destructible', function (accounts) {
+  it('should send balance to owner after destruction', async function () {
+    let destructible = await Destructible.new({ from: accounts[0], value: web3.toWei('10', 'ether') });
     let owner = await destructible.owner();
     let initBalance = web3.eth.getBalance(owner);
-    await destructible.destroy({from: owner});
+    await destructible.destroy({ from: owner });
     let newBalance = web3.eth.getBalance(owner);
     assert.isTrue(newBalance > initBalance);
   });
 
-  it('should send balance to recepient after destruction', async function() {
-    let destructible = await Destructible.new({from: accounts[0], value: web3.toWei('10','ether')});
+  it('should send balance to recepient after destruction', async function () {
+    let destructible = await Destructible.new({ from: accounts[0], value: web3.toWei('10', 'ether') });
     let owner = await destructible.owner();
     let initBalance = web3.eth.getBalance(accounts[1]);
-    await destructible.destroyAndSend(accounts[1], {from: owner} );
+    await destructible.destroyAndSend(accounts[1], { from: owner });
     let newBalance = web3.eth.getBalance(accounts[1]);
     assert.isTrue(newBalance.greaterThan(initBalance));
   });
-
 });

test/DetailedERC20.js → test/DetailedERC20.test.js

@@ -5,16 +5,16 @@ require('chai')
   .use(require('chai-bignumber')(BigNumber))
   .should();
 
-const DetailedERC20Mock = artifacts.require('./helpers/DetailedERC20Mock.sol');
+const DetailedERC20Mock = artifacts.require('./mocks/DetailedERC20Mock.sol');
 
 contract('DetailedERC20', accounts => {
   let detailedERC20 = null;
 
-  const _name = "My Detailed ERC20";
-  const _symbol = "MDT";
+  const _name = 'My Detailed ERC20';
+  const _symbol = 'MDT';
   const _decimals = 18;
 
-  beforeEach(async function() {
+  beforeEach(async function () {
     detailedERC20 = await DetailedERC20Mock.new(_name, _symbol, _decimals);
   });
 
@@ -30,6 +30,6 @@ contract('DetailedERC20', accounts => {
 
   it('has an amount of decimals', async function () {
     const decimals = await detailedERC20.decimals();
-    decimals.should.be.bignumber.equal(_decimals)
+    decimals.should.be.bignumber.equal(_decimals);
   });
 });

test/ECRecovery.js → test/ECRecovery.test.js

-var ECRecovery = artifacts.require("../contracts/ECRecovery.sol");
-var utils = require('ethereumjs-util');
+var ECRecovery = artifacts.require('../contracts/ECRecovery.sol');
 var hashMessage = require('./helpers/hashMessage.js');
 
-contract('ECRecovery', function(accounts) {
-
+contract('ECRecovery', function (accounts) {
   let ecrecovery;
 
-  before(async function() {
+  before(async function () {
     ecrecovery = await ECRecovery.new();
   });
 
-  it("recover v0", async function() {
+  it('recover v0', async function () {
     // Signature generated outside testrpc with method web3.eth.sign(signer, message)
     let signer = '0x2cc1166f6212628a0deef2b33befb2187d35b86c';
     let message = '0x7dbaf558b0a1a5dc7a67202117ab143c1d8605a983e4a743bc06fcc03162dc0d'; // web3.sha3('OpenZeppelin')
+    // eslint-disable-next-line max-len
     let signature = '0x5d99b6f7f6d1f73d1a26497f2b1c89b24c0993913f86e9a2d02cd69887d9c94f3c880358579d811b21dd1b7fd9bb01c1d81d10e69f0384e675c32b39643be89200';
     assert.equal(signer, await ecrecovery.recover(message, signature));
   });
 
-  it("recover v1", async function() {
+  it('recover v1', async function () {
     // Signature generated outside testrpc with method web3.eth.sign(signer, message)
     let signer = '0x1e318623ab09fe6de3c9b8672098464aeda9100e';
     let message = '0x7dbaf558b0a1a5dc7a67202117ab143c1d8605a983e4a743bc06fcc03162dc0d'; // web3.sha3('OpenZeppelin')
+    // eslint-disable-next-line max-len
     let signature = '0x331fe75a821c982f9127538858900d87d3ec1f9f737338ad67cad133fa48feff48e6fa0c18abc62e42820f05943e47af3e9fbe306ce74d64094bdf1691ee53e001';
     assert.equal(signer, await ecrecovery.recover(message, signature));
   });
 
-  it("recover using web3.eth.sign()", async function() {
+  it('recover using web3.eth.sign()', async function () {
     // Create the signature using account[0]
     const signature = web3.eth.sign(web3.eth.accounts[0], web3.sha3('OpenZeppelin'));
 
@@ -34,7 +34,7 @@ contract('ECRecovery', function(accounts) {
     assert.equal(web3.eth.accounts[0], await ecrecovery.recover(hashMessage('OpenZeppelin'), signature));
   });
 
-  it("recover using web3.eth.sign() should return wrong signer", async function() {
+  it('recover using web3.eth.sign() should return wrong signer', async function () {
     // Create the signature using account[0]
     const signature = web3.eth.sign(web3.eth.accounts[0], web3.sha3('OpenZeppelin'));
 
@@ -42,7 +42,7 @@ contract('ECRecovery', function(accounts) {
     assert.notEqual(web3.eth.accounts[0], await ecrecovery.recover(hashMessage('Test'), signature));
   });
 
-  it("recover should fail when a wrong hash is sent", async function() {
+  it('recover should fail when a wrong hash is sent', async function () {
     // Create the signature using account[0]
     let signature = web3.eth.sign(web3.eth.accounts[0], web3.sha3('OpenZeppelin'));
 
@@ -51,5 +51,4 @@ contract('ECRecovery', function(accounts) {
       await ecrecovery.recover(hashMessage('OpenZeppelin').substring(2), signature)
     );
   });
-
 });

test/FinalizableCrowdsale.js

-import {advanceBlock} from './helpers/advanceToBlock'
-import {increaseTimeTo, duration} from './helpers/increaseTime'
-import latestTime from './helpers/latestTime'
-import EVMRevert from './helpers/EVMRevert'
-
-const BigNumber = web3.BigNumber
-
-const should = require('chai')
-  .use(require('chai-as-promised'))
-  .use(require('chai-bignumber')(BigNumber))
-  .should()
-
-const FinalizableCrowdsale = artifacts.require('./helpers/FinalizableCrowdsaleImpl.sol')
-const MintableToken = artifacts.require('MintableToken')
-
-contract('FinalizableCrowdsale', function ([_, owner, wallet, thirdparty]) {
-
-  const rate = new BigNumber(1000)
-
-  before(async function() {
-    //Advance to the next block to correctly read time in the solidity "now" function interpreted by testrpc
-    await advanceBlock()
-  })
-
-  beforeEach(async function () {
-    this.startTime = latestTime() + duration.weeks(1)
-    this.endTime =   this.startTime + duration.weeks(1)
-    this.afterEndTime = this.endTime + duration.seconds(1)
-
-
-    this.crowdsale = await FinalizableCrowdsale.new(this.startTime, this.endTime, rate, wallet, {from: owner})
-
-    this.token = MintableToken.at(await this.crowdsale.token())
-  })
-
-  it('cannot be finalized before ending', async function () {
-    await this.crowdsale.finalize({from: owner}).should.be.rejectedWith(EVMRevert)
-  })
-
-  it('cannot be finalized by third party after ending', async function () {
-    await increaseTimeTo(this.afterEndTime)
-    await this.crowdsale.finalize({from: thirdparty}).should.be.rejectedWith(EVMRevert)
-  })
-
-  it('can be finalized by owner after ending', async function () {
-    await increaseTimeTo(this.afterEndTime)
-    await this.crowdsale.finalize({from: owner}).should.be.fulfilled
-  })
-
-  it('cannot be finalized twice', async function () {
-    await increaseTimeTo(this.afterEndTime)
-    await this.crowdsale.finalize({from: owner})
-    await this.crowdsale.finalize({from: owner}).should.be.rejectedWith(EVMRevert)
-  })
-
-  it('logs finalized', async function () {
-    await increaseTimeTo(this.afterEndTime)
-    const {logs} = await this.crowdsale.finalize({from: owner})
-    const event = logs.find(e => e.event === 'Finalized')
-    should.exist(event)
-  })
-
-})

test/FinalizableCrowdsale.test.js

+import { advanceBlock } from './helpers/advanceToBlock';
+import { increaseTimeTo, duration } from './helpers/increaseTime';
+import latestTime from './helpers/latestTime';
+import EVMRevert from './helpers/EVMRevert';
+
+const BigNumber = web3.BigNumber;
+
+const should = require('chai')
+  .use(require('chai-as-promised'))
+  .use(require('chai-bignumber')(BigNumber))
+  .should();
+
+const FinalizableCrowdsale = artifacts.require('./mocks/FinalizableCrowdsaleImpl.sol');
+const MintableToken = artifacts.require('MintableToken');
+
+contract('FinalizableCrowdsale', function ([_, owner, wallet, thirdparty]) {
+  const rate = new BigNumber(1000);
+
+  before(async function () {
+    // Advance to the next block to correctly read time in the solidity "now" function interpreted by testrpc
+    await advanceBlock();
+  });
+
+  beforeEach(async function () {
+    this.startTime = latestTime() + duration.weeks(1);
+    this.endTime = this.startTime + duration.weeks(1);
+    this.afterEndTime = this.endTime + duration.seconds(1);
+
+    this.crowdsale = await FinalizableCrowdsale.new(this.startTime, this.endTime, rate, wallet, { from: owner });
+
+    this.token = MintableToken.at(await this.crowdsale.token());
+  });
+
+  it('cannot be finalized before ending', async function () {
+    await this.crowdsale.finalize({ from: owner }).should.be.rejectedWith(EVMRevert);
+  });
+
+  it('cannot be finalized by third party after ending', async function () {
+    await increaseTimeTo(this.afterEndTime);
+    await this.crowdsale.finalize({ from: thirdparty }).should.be.rejectedWith(EVMRevert);
+  });
+
+  it('can be finalized by owner after ending', async function () {
+    await increaseTimeTo(this.afterEndTime);
+    await this.crowdsale.finalize({ from: owner }).should.be.fulfilled;
+  });
+
+  it('cannot be finalized twice', async function () {
+    await increaseTimeTo(this.afterEndTime);
+    await this.crowdsale.finalize({ from: owner });
+    await this.crowdsale.finalize({ from: owner }).should.be.rejectedWith(EVMRevert);
+  });
+
+  it('logs finalized', async function () {
+    await increaseTimeTo(this.afterEndTime);
+    const { logs } = await this.crowdsale.finalize({ from: owner });
+    const event = logs.find(e => e.event === 'Finalized');
+    should.exist(event);
+  });
+});

test/HasNoContracts.js → test/HasNoContracts.test.js

-'use strict';
+
 import expectThrow from './helpers/expectThrow';
-import toPromise from './helpers/toPromise';
+
 const Ownable = artifacts.require('../contracts/ownership/Ownable.sol');
 const HasNoContracts = artifacts.require(
   '../contracts/ownership/HasNoContracts.sol',
 );
 
-contract('HasNoContracts', function(accounts) {
+contract('HasNoContracts', function (accounts) {
   let hasNoContracts = null;
   let ownable = null;
 
@@ -21,15 +21,15 @@ contract('HasNoContracts', function(accounts) {
     assert.equal(owner, hasNoContracts.address);
   });
 
-  it('should allow owner to reclaim contracts', async function() {
+  it('should allow owner to reclaim contracts', async function () {
     await hasNoContracts.reclaimContract(ownable.address);
     const owner = await ownable.owner();
     assert.equal(owner, accounts[0]);
   });
 
-  it('should allow only owner to reclaim contracts', async function() {
+  it('should allow only owner to reclaim contracts', async function () {
     await expectThrow(
-      hasNoContracts.reclaimContract(ownable.address, {from: accounts[1]}),
+      hasNoContracts.reclaimContract(ownable.address, { from: accounts[1] }),
     );
   });
 });

test/HasNoEther.js → test/HasNoEther.test.js

-'use strict';
+
 import expectThrow from './helpers/expectThrow';
 import toPromise from './helpers/toPromise';
-const HasNoEther = artifacts.require('../contracts/lifecycle/HasNoEther.sol');
-const HasNoEtherTest = artifacts.require('../helpers/HasNoEtherTest.sol');
-const ForceEther = artifacts.require('../helpers/ForceEther.sol');
+const HasNoEtherTest = artifacts.require('../mocks/HasNoEtherTest.sol');
+const ForceEther = artifacts.require('../mocks/ForceEther.sol');
 
-contract('HasNoEther', function(accounts) {
+contract('HasNoEther', function (accounts) {
   const amount = web3.toWei('1', 'ether');
 
-  it('should be constructorable', async function() {
-    let hasNoEther = await HasNoEtherTest.new();
+  it('should be constructorable', async function () {
+    await HasNoEtherTest.new();
   });
 
-  it('should not accept ether in constructor', async function() {
-    await expectThrow(HasNoEtherTest.new({value: amount}));
+  it('should not accept ether in constructor', async function () {
+    await expectThrow(HasNoEtherTest.new({ value: amount }));
   });
 
-  it('should not accept ether', async function() {
+  it('should not accept ether', async function () {
     let hasNoEther = await HasNoEtherTest.new();
 
     await expectThrow(
@@ -28,14 +27,14 @@ contract('HasNoEther', function(accounts) {
     );
   });
 
-  it('should allow owner to reclaim ether', async function() {
+  it('should allow owner to reclaim ether', async function () {
     // Create contract
     let hasNoEther = await HasNoEtherTest.new();
     const startBalance = await web3.eth.getBalance(hasNoEther.address);
     assert.equal(startBalance, 0);
 
     // Force ether into it
-    let forceEther = await ForceEther.new({value: amount});
+    let forceEther = await ForceEther.new({ value: amount });
     await forceEther.destroyAndSend(hasNoEther.address);
     const forcedBalance = await web3.eth.getBalance(hasNoEther.address);
     assert.equal(forcedBalance, amount);
@@ -49,17 +48,17 @@ contract('HasNoEther', function(accounts) {
     assert.isAbove(ownerFinalBalance, ownerStartBalance);
   });
 
-  it('should allow only owner to reclaim ether', async function() {
+  it('should allow only owner to reclaim ether', async function () {
     // Create contract
-    let hasNoEther = await HasNoEtherTest.new({from: accounts[0]});
+    let hasNoEther = await HasNoEtherTest.new({ from: accounts[0] });
 
     // Force ether into it
-    let forceEther = await ForceEther.new({value: amount});
+    let forceEther = await ForceEther.new({ value: amount });
     await forceEther.destroyAndSend(hasNoEther.address);
     const forcedBalance = await web3.eth.getBalance(hasNoEther.address);
     assert.equal(forcedBalance, amount);
 
     // Reclaim
-    await expectThrow(hasNoEther.reclaimEther({from: accounts[1]}));
+    await expectThrow(hasNoEther.reclaimEther({ from: accounts[1] }));
   });
 });

test/HasNoTokens.js → test/HasNoTokens.test.js

-'use strict';
+
 import expectThrow from './helpers/expectThrow';
-import toPromise from './helpers/toPromise';
+
 const HasNoTokens = artifacts.require('../contracts/lifecycle/HasNoTokens.sol');
-const ERC23TokenMock = artifacts.require('./helpers/ERC23TokenMock.sol');
+const ERC23TokenMock = artifacts.require('./mocks/ERC23TokenMock.sol');
 
-contract('HasNoTokens', function(accounts) {
+contract('HasNoTokens', function (accounts) {
   let hasNoTokens = null;
   let token = null;
 
@@ -19,11 +19,11 @@ contract('HasNoTokens', function(accounts) {
     assert.equal(startBalance, 10);
   });
 
-  it('should not accept ERC23 tokens', async function() {
+  it('should not accept ERC23 tokens', async function () {
     await expectThrow(token.transferERC23(hasNoTokens.address, 10, ''));
   });
 
-  it('should allow owner to reclaim tokens', async function() {
+  it('should allow owner to reclaim tokens', async function () {
     const ownerStartBalance = await token.balanceOf(accounts[0]);
     await hasNoTokens.reclaimToken(token.address);
     const ownerFinalBalance = await token.balanceOf(accounts[0]);
@@ -32,9 +32,9 @@ contract('HasNoTokens', function(accounts) {
     assert.equal(ownerFinalBalance - ownerStartBalance, 10);
   });
 
-  it('should allow only owner to reclaim tokens', async function() {
+  it('should allow only owner to reclaim tokens', async function () {
     await expectThrow(
-      hasNoTokens.reclaimToken(token.address, {from: accounts[1]}),
+      hasNoTokens.reclaimToken(token.address, { from: accounts[1] }),
     );
   });
 });

test/LimitBalance.js → test/LimitBalance.test.js

-'use strict';
 
-var LimitBalanceMock = artifacts.require('helpers/LimitBalanceMock.sol');
+var LimitBalanceMock = artifacts.require('mocks/LimitBalanceMock.sol');
 const assertRevert = require('./helpers/assertRevert');
 
-contract('LimitBalance', function(accounts) {
+contract('LimitBalance', function (accounts) {
   let lb;
 
-  beforeEach(async function() {
+  beforeEach(async function () {
     lb = await LimitBalanceMock.new();
   });
 
   let LIMIT = 1000;
 
-  it('should expose limit', async function() {
+  it('should expose limit', async function () {
     let limit = await lb.limit();
     assert.equal(limit, LIMIT);
   });
 
-  it('should allow sending below limit', async function() {
+  it('should allow sending below limit', async function () {
     let amount = 1;
-    await lb.limitedDeposit({value: amount});
+    await lb.limitedDeposit({ value: amount });
 
     assert.equal(web3.eth.getBalance(lb.address), amount);
   });
 
-  it('shouldnt allow sending above limit', async function() {
+  it('shouldnt allow sending above limit', async function () {
     let amount = 1110;
     try {
-      await lb.limitedDeposit({value: amount});
+      await lb.limitedDeposit({ value: amount });
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
   });
 
-  it('should allow multiple sends below limit', async function() {
+  it('should allow multiple sends below limit', async function () {
     let amount = 500;
-    await lb.limitedDeposit({value: amount});
+    await lb.limitedDeposit({ value: amount });
 
     assert.equal(web3.eth.getBalance(lb.address), amount);
 
-    await lb.limitedDeposit({value: amount});
-    assert.equal(web3.eth.getBalance(lb.address), amount*2);
+    await lb.limitedDeposit({ value: amount });
+    assert.equal(web3.eth.getBalance(lb.address), amount * 2);
   });
 
-  it('shouldnt allow multiple sends above limit', async function() {
+  it('shouldnt allow multiple sends above limit', async function () {
     let amount = 500;
-    await lb.limitedDeposit({value: amount});
+    await lb.limitedDeposit({ value: amount });
 
     assert.equal(web3.eth.getBalance(lb.address), amount);
 
     try {
-      await lb.limitedDeposit({value: amount+1});
+      await lb.limitedDeposit({ value: amount + 1 });
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
   });
-
 });

test/MerkleProof.js → test/MerkleProof.test.js

-var MerkleProof = artifacts.require("./MerkleProof.sol");
 
-import MerkleTree from "./helpers/merkleTree.js";
-import { sha3, bufferToHex } from "ethereumjs-util";
+import MerkleTree from './helpers/merkleTree.js';
+import { sha3, bufferToHex } from 'ethereumjs-util';
 
-contract('MerkleProof', function(accounts) {
+var MerkleProof = artifacts.require('./MerkleProof.sol');
+
+contract('MerkleProof', function (accounts) {
   let merkleProof;
 
-  before(async function() {
+  before(async function () {
     merkleProof = await MerkleProof.new();
   });
 
-  describe("verifyProof", function() {
-    it("should return true for a valid Merkle proof", async function() {
-      const elements = ["a", "b", "c", "d"];
+  describe('verifyProof', function () {
+    it('should return true for a valid Merkle proof', async function () {
+      const elements = ['a', 'b', 'c', 'd'];
       const merkleTree = new MerkleTree(elements);
 
       const root = merkleTree.getHexRoot();
@@ -22,28 +23,28 @@ contract('MerkleProof', function(accounts) {
       const leaf = bufferToHex(sha3(elements[0]));
 
       const result = await merkleProof.verifyProof(proof, root, leaf);
-      assert.isOk(result, "verifyProof did not return true for a valid proof");
+      assert.isOk(result, 'verifyProof did not return true for a valid proof');
     });
 
-    it("should return false for an invalid Merkle proof", async function() {
-      const correctElements = ["a", "b", "c"]
+    it('should return false for an invalid Merkle proof', async function () {
+      const correctElements = ['a', 'b', 'c'];
       const correctMerkleTree = new MerkleTree(correctElements);
 
       const correctRoot = correctMerkleTree.getHexRoot();
 
       const correctLeaf = bufferToHex(sha3(correctElements[0]));
 
-      const badElements = ["d", "e", "f"]
-      const badMerkleTree = new MerkleTree(badElements)
+      const badElements = ['d', 'e', 'f'];
+      const badMerkleTree = new MerkleTree(badElements);
 
-      const badProof = badMerkleTree.getHexProof(badElements[0])
+      const badProof = badMerkleTree.getHexProof(badElements[0]);
 
       const result = await merkleProof.verifyProof(badProof, correctRoot, correctLeaf);
-      assert.isNotOk(result, "verifyProof did not return false for an invalid proof");
+      assert.isNotOk(result, 'verifyProof did not return false for an invalid proof');
     });
 
-    it("should return false for a Merkle proof of invalid length", async function() {
-      const elements = ["a", "b", "c"]
+    it('should return false for a Merkle proof of invalid length', async function () {
+      const elements = ['a', 'b', 'c'];
       const merkleTree = new MerkleTree(elements);
 
       const root = merkleTree.getHexRoot();
@@ -54,7 +55,7 @@ contract('MerkleProof', function(accounts) {
       const leaf = bufferToHex(sha3(elements[0]));
 
       const result = await merkleProof.verifyProof(badProof, root, leaf);
-      assert.isNotOk(result, "verifyProof did not return false for proof of invalid length");
-    })
+      assert.isNotOk(result, 'verifyProof did not return false for proof of invalid length');
+    });
   });
 });

test/MintableToken.js → test/MintableToken.test.js

-'use strict';
 
 import expectThrow from './helpers/expectThrow';
 var MintableToken = artifacts.require('../contracts/Tokens/MintableToken.sol');
 
-contract('Mintable', function(accounts) {
+contract('Mintable', function (accounts) {
   let token;
 
-  beforeEach(async function() {
+  beforeEach(async function () {
     token = await MintableToken.new();
   });
 
-  it('should start with a totalSupply of 0', async function() {
+  it('should start with a totalSupply of 0', async function () {
     let totalSupply = await token.totalSupply();
 
     assert.equal(totalSupply, 0);
   });
 
-  it('should return mintingFinished false after construction', async function() {
+  it('should return mintingFinished false after construction', async function () {
     let mintingFinished = await token.mintingFinished();
 
     assert.equal(mintingFinished, false);
   });
 
-  it('should mint a given amount of tokens to a given address', async function() {
+  it('should mint a given amount of tokens to a given address', async function () {
     const result = await token.mint(accounts[0], 100);
     assert.equal(result.logs[0].event, 'Mint');
     assert.equal(result.logs[0].args.to.valueOf(), accounts[0]);
@@ -35,12 +34,11 @@ contract('Mintable', function(accounts) {
 
     let totalSupply = await token.totalSupply();
     assert(totalSupply, 100);
-  })
+  });
 
   it('should fail to mint after call to finishMinting', async function () {
     await token.finishMinting();
     assert.equal(await token.mintingFinished(), true);
     await expectThrow(token.mint(accounts[0], 100));
-  })
-
+  });
 });

test/Ownable.js → test/Ownable.test.js

-'use strict';
+
 const assertRevert = require('./helpers/assertRevert');
 
 var Ownable = artifacts.require('../contracts/ownership/Ownable.sol');
 
-contract('Ownable', function(accounts) {
+contract('Ownable', function (accounts) {
   let ownable;
 
-  beforeEach(async function() {
+  beforeEach(async function () {
     ownable = await Ownable.new();
   });
 
-  it('should have an owner', async function() {
+  it('should have an owner', async function () {
     let owner = await ownable.owner();
     assert.isTrue(owner !== 0);
   });
 
-  it('changes owner after transfer', async function() {
+  it('changes owner after transfer', async function () {
     let other = accounts[1];
     await ownable.transferOwnership(other);
     let owner = await ownable.owner();
@@ -23,26 +23,25 @@ contract('Ownable', function(accounts) {
     assert.isTrue(owner === other);
   });
 
-  it('should prevent non-owners from transfering', async function() {
+  it('should prevent non-owners from transfering', async function () {
     const other = accounts[2];
     const owner = await ownable.owner.call();
     assert.isTrue(owner !== other);
     try {
-      await ownable.transferOwnership(other, {from: other});
+      await ownable.transferOwnership(other, { from: other });
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
   });
 
-  it('should guard ownership against stuck state', async function() {
+  it('should guard ownership against stuck state', async function () {
     let originalOwner = await ownable.owner();
     try {
-      await ownable.transferOwnership(null, {from: originalOwner});
+      await ownable.transferOwnership(null, { from: originalOwner });
       assert.fail();
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
   });
-
 });

test/Pausable.js → test/Pausable.test.js

-'use strict';
 
 const assertRevert = require('./helpers/assertRevert');
-const PausableMock = artifacts.require('helpers/PausableMock.sol');
+const PausableMock = artifacts.require('mocks/PausableMock.sol');
 
-contract('Pausable', function(accounts) {
-
-  it('can perform normal process in non-pause', async function() {
+contract('Pausable', function (accounts) {
+  it('can perform normal process in non-pause', async function () {
     let Pausable = await PausableMock.new();
     let count0 = await Pausable.count();
     assert.equal(count0, 0);
@@ -15,7 +13,7 @@ contract('Pausable', function(accounts) {
     assert.equal(count1, 1);
   });
 
-  it('can not perform normal process in pause', async function() {
+  it('can not perform normal process in pause', async function () {
     let Pausable = await PausableMock.new();
     await Pausable.pause();
     let count0 = await Pausable.count();
@@ -24,27 +22,26 @@ contract('Pausable', function(accounts) {
     try {
       await Pausable.normalProcess();
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
     let count1 = await Pausable.count();
     assert.equal(count1, 0);
   });
 
-
-  it('can not take drastic measure in non-pause', async function() {
+  it('can not take drastic measure in non-pause', async function () {
     let Pausable = await PausableMock.new();
     try {
       await Pausable.drasticMeasure();
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
     const drasticMeasureTaken = await Pausable.drasticMeasureTaken();
     assert.isFalse(drasticMeasureTaken);
   });
 
-  it('can take a drastic measure in a pause', async function() {
+  it('can take a drastic measure in a pause', async function () {
     let Pausable = await PausableMock.new();
     await Pausable.pause();
     await Pausable.drasticMeasure();
@@ -53,7 +50,7 @@ contract('Pausable', function(accounts) {
     assert.isTrue(drasticMeasureTaken);
   });
 
-  it('should resume allowing normal process after pause is over', async function() {
+  it('should resume allowing normal process after pause is over', async function () {
     let Pausable = await PausableMock.new();
     await Pausable.pause();
     await Pausable.unpause();
@@ -63,19 +60,18 @@ contract('Pausable', function(accounts) {
     assert.equal(count0, 1);
   });
 
-  it('should prevent drastic measure after pause is over', async function() {
+  it('should prevent drastic measure after pause is over', async function () {
     let Pausable = await PausableMock.new();
     await Pausable.pause();
     await Pausable.unpause();
     try {
       await Pausable.drasticMeasure();
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
 
     const drasticMeasureTaken = await Pausable.drasticMeasureTaken();
     assert.isFalse(drasticMeasureTaken);
   });
-
 });

test/PausableToken.js → test/PausableToken.test.js

 'user strict';
 
 const assertRevert = require('./helpers/assertRevert');
-var PausableTokenMock = artifacts.require('./helpers/PausableTokenMock.sol');
+var PausableTokenMock = artifacts.require('./mocks/PausableTokenMock.sol');
 
-contract('PausableToken', function(accounts) {
+contract('PausableToken', function (accounts) {
   let token;
 
-  beforeEach(async function() {
+  beforeEach(async function () {
     token = await PausableTokenMock.new(accounts[0], 100);
   });
 
-  it('should return paused false after construction', async function() {
+  it('should return paused false after construction', async function () {
     let paused = await token.paused();
 
     assert.equal(paused, false);
   });
 
-  it('should return paused true after pause', async function() {
+  it('should return paused true after pause', async function () {
     await token.pause();
     let paused = await token.paused();
 
     assert.equal(paused, true);
   });
 
-  it('should return paused false after pause and unpause', async function() {
+  it('should return paused false after pause and unpause', async function () {
     await token.pause();
     await token.unpause();
     let paused = await token.paused();
@@ -31,7 +31,7 @@ contract('PausableToken', function(accounts) {
     assert.equal(paused, false);
   });
 
-  it('should be able to transfer if transfers are unpaused', async function() {
+  it('should be able to transfer if transfers are unpaused', async function () {
     await token.transfer(accounts[1], 100);
     let balance0 = await token.balanceOf(accounts[0]);
     assert.equal(balance0, 0);
@@ -40,7 +40,7 @@ contract('PausableToken', function(accounts) {
     assert.equal(balance1, 100);
   });
 
-  it('should be able to transfer after transfers are paused and unpaused', async function() {
+  it('should be able to transfer after transfers are paused and unpaused', async function () {
     await token.pause();
     await token.unpause();
     await token.transfer(accounts[1], 100);
@@ -51,7 +51,7 @@ contract('PausableToken', function(accounts) {
     assert.equal(balance1, 100);
   });
 
-  it('should throw an error trying to transfer while transactions are paused', async function() {
+  it('should throw an error trying to transfer while transactions are paused', async function () {
     await token.pause();
     try {
       await token.transfer(accounts[1], 100);
@@ -61,7 +61,7 @@ contract('PausableToken', function(accounts) {
     }
   });
 
-  it('should throw an error trying to transfer from another account while transactions are paused', async function() {
+  it('should throw an error trying to transfer from another account while transactions are paused', async function () {
     await token.pause();
     try {
       await token.transferFrom(accounts[0], accounts[1], 100);
@@ -70,4 +70,4 @@ contract('PausableToken', function(accounts) {
       assertRevert(error);
     }
   });
-})
+});

test/PullPayment.js → test/PullPayment.test.js

-var PullPaymentMock = artifacts.require("./helpers/PullPaymentMock.sol");
+var PullPaymentMock = artifacts.require('./mocks/PullPaymentMock.sol');
 
-contract('PullPayment', function(accounts) {
+contract('PullPayment', function (accounts) {
   let ppce;
-  let amount = 17*1e18;
+  let amount = 17 * 1e18;
 
-  beforeEach(async function() {
-    ppce = await PullPaymentMock.new({value: amount});
+  beforeEach(async function () {
+    ppce = await PullPaymentMock.new({ value: amount });
   });
 
-  it("can't call asyncSend externally", async function() {
+  it('can\'t call asyncSend externally', async function () {
     assert.isUndefined(ppce.asyncSend);
   });
 
-  it("can record an async payment correctly", async function() {
+  it('can record an async payment correctly', async function () {
     let AMOUNT = 100;
-    let callSend = await ppce.callSend(accounts[0], AMOUNT);
+    await ppce.callSend(accounts[0], AMOUNT);
     let paymentsToAccount0 = await ppce.payments(accounts[0]);
     let totalPayments = await ppce.totalPayments();
 
@@ -22,9 +22,9 @@ contract('PullPayment', function(accounts) {
     assert.equal(paymentsToAccount0, AMOUNT);
   });
 
-  it("can add multiple balances on one account", async function() {
-    let call1 = await ppce.callSend(accounts[0], 200);
-    let call2 = await ppce.callSend(accounts[0], 300);
+  it('can add multiple balances on one account', async function () {
+    await ppce.callSend(accounts[0], 200);
+    await ppce.callSend(accounts[0], 300);
     let paymentsToAccount0 = await ppce.payments(accounts[0]);
     let totalPayments = await ppce.totalPayments();
 
@@ -32,9 +32,9 @@ contract('PullPayment', function(accounts) {
     assert.equal(paymentsToAccount0, 500);
   });
 
-  it("can add balances on multiple accounts", async function() {
-    let call1 = await ppce.callSend(accounts[0], 200);
-    let call2 = await ppce.callSend(accounts[1], 300);
+  it('can add balances on multiple accounts', async function () {
+    await ppce.callSend(accounts[0], 200);
+    await ppce.callSend(accounts[1], 300);
 
     let paymentsToAccount0 = await ppce.payments(accounts[0]);
     assert.equal(paymentsToAccount0, 200);
@@ -46,11 +46,11 @@ contract('PullPayment', function(accounts) {
     assert.equal(totalPayments, 500);
   });
 
-  it("can withdraw payment", async function() {
+  it('can withdraw payment', async function () {
     let payee = accounts[1];
     let initialBalance = web3.eth.getBalance(payee);
 
-    let call1 = await ppce.callSend(payee, amount);
+    await ppce.callSend(payee, amount);
 
     let payment1 = await ppce.payments(payee);
     assert.equal(payment1, amount);
@@ -58,7 +58,7 @@ contract('PullPayment', function(accounts) {
     let totalPayments = await ppce.totalPayments();
     assert.equal(totalPayments, amount);
 
-    let withdraw = await ppce.withdrawPayments({from: payee});
+    await ppce.withdrawPayments({ from: payee });
     let payment2 = await ppce.payments(payee);
     assert.equal(payment2, 0);
 
@@ -66,7 +66,6 @@ contract('PullPayment', function(accounts) {
     assert.equal(totalPayments, 0);
 
     let balance = web3.eth.getBalance(payee);
-    assert(Math.abs(balance-initialBalance-amount) < 1e16);
+    assert(Math.abs(balance - initialBalance - amount) < 1e16);
   });
-
 });

test/ReentrancyGuard.js → test/ReentrancyGuard.test.js

-'use strict';
+
 import expectThrow from './helpers/expectThrow';
 const ReentrancyMock = artifacts.require('./helper/ReentrancyMock.sol');
 const ReentrancyAttack = artifacts.require('./helper/ReentrancyAttack.sol');
 
-contract('ReentrancyGuard', function(accounts) {
+contract('ReentrancyGuard', function (accounts) {
   let reentrancyMock;
 
-  beforeEach(async function() {
+  beforeEach(async function () {
     reentrancyMock = await ReentrancyMock.new();
     let initialCounter = await reentrancyMock.counter();
     assert.equal(initialCounter, 0);
   });
 
-  it('should not allow remote callback', async function() {
+  it('should not allow remote callback', async function () {
     let attacker = await ReentrancyAttack.new();
     await expectThrow(reentrancyMock.countAndCall(attacker.address));
   });
@@ -21,11 +21,11 @@ contract('ReentrancyGuard', function(accounts) {
   // I put them here as documentation, and to monitor any changes
   // in the side-effects.
 
-  it('should not allow local recursion', async function() {
+  it('should not allow local recursion', async function () {
     await expectThrow(reentrancyMock.countLocalRecursive(10));
   });
 
-  it('should not allow indirect local recursion', async function() {
+  it('should not allow indirect local recursion', async function () {
     await expectThrow(reentrancyMock.countThisRecursive(10));
   });
 });

test/RefundVault.js

-const BigNumber = web3.BigNumber
-
-require('chai')
-  .use(require('chai-as-promised'))
-  .use(require('chai-bignumber')(BigNumber))
-  .should()
-
-import ether from './helpers/ether'
-import EVMRevert from './helpers/EVMRevert'
-
-const RefundVault = artifacts.require('RefundVault')
-
-contract('RefundVault', function ([_, owner, wallet, investor]) {
-
-  const value = ether(42)
-
-  beforeEach(async function () {
-    this.vault = await RefundVault.new(wallet, {from: owner})
-  })
-
-  it('should accept contributions', async function () {
-    await this.vault.deposit(investor, {value, from: owner}).should.be.fulfilled
-  })
-
-  it('should not refund contribution during active state', async function () {
-    await this.vault.deposit(investor, {value, from: owner})
-    await this.vault.refund(investor).should.be.rejectedWith(EVMRevert)
-  })
-
-  it('only owner can enter refund mode', async function () {
-    await this.vault.enableRefunds({from: _}).should.be.rejectedWith(EVMRevert)
-    await this.vault.enableRefunds({from: owner}).should.be.fulfilled
-  })
-
-  it('should refund contribution after entering refund mode', async function () {
-    await this.vault.deposit(investor, {value, from: owner})
-    await this.vault.enableRefunds({from: owner})
-
-    const pre = web3.eth.getBalance(investor)
-    await this.vault.refund(investor)
-    const post = web3.eth.getBalance(investor)
-
-    post.minus(pre).should.be.bignumber.equal(value)
-  })
-
-  it('only owner can close', async function () {
-    await this.vault.close({from: _}).should.be.rejectedWith(EVMRevert)
-    await this.vault.close({from: owner}).should.be.fulfilled
-  })
-
-  it('should forward funds to wallet after closing', async function () {
-    await this.vault.deposit(investor, {value, from: owner})
-
-    const pre = web3.eth.getBalance(wallet)
-    await this.vault.close({from: owner})
-    const post = web3.eth.getBalance(wallet)
-
-    post.minus(pre).should.be.bignumber.equal(value)
-  })
-
-})

test/RefundVault.test.js

+import ether from './helpers/ether';
+import EVMRevert from './helpers/EVMRevert';
+
+const BigNumber = web3.BigNumber;
+
+require('chai')
+  .use(require('chai-as-promised'))
+  .use(require('chai-bignumber')(BigNumber))
+  .should();
+
+const RefundVault = artifacts.require('RefundVault');
+
+contract('RefundVault', function ([_, owner, wallet, investor]) {
+  const value = ether(42);
+
+  beforeEach(async function () {
+    this.vault = await RefundVault.new(wallet, { from: owner });
+  });
+
+  it('should accept contributions', async function () {
+    await this.vault.deposit(investor, { value, from: owner }).should.be.fulfilled;
+  });
+
+  it('should not refund contribution during active state', async function () {
+    await this.vault.deposit(investor, { value, from: owner });
+    await this.vault.refund(investor).should.be.rejectedWith(EVMRevert);
+  });
+
+  it('only owner can enter refund mode', async function () {
+    await this.vault.enableRefunds({ from: _ }).should.be.rejectedWith(EVMRevert);
+    await this.vault.enableRefunds({ from: owner }).should.be.fulfilled;
+  });
+
+  it('should refund contribution after entering refund mode', async function () {
+    await this.vault.deposit(investor, { value, from: owner });
+    await this.vault.enableRefunds({ from: owner });
+
+    const pre = web3.eth.getBalance(investor);
+    await this.vault.refund(investor);
+    const post = web3.eth.getBalance(investor);
+
+    post.minus(pre).should.be.bignumber.equal(value);
+  });
+
+  it('only owner can close', async function () {
+    await this.vault.close({ from: _ }).should.be.rejectedWith(EVMRevert);
+    await this.vault.close({ from: owner }).should.be.fulfilled;
+  });
+
+  it('should forward funds to wallet after closing', async function () {
+    await this.vault.deposit(investor, { value, from: owner });
+
+    const pre = web3.eth.getBalance(wallet);
+    await this.vault.close({ from: owner });
+    const post = web3.eth.getBalance(wallet);
+
+    post.minus(pre).should.be.bignumber.equal(value);
+  });
+});

test/RefundableCrowdsale.js

-import ether from './helpers/ether'
-import {advanceBlock} from './helpers/advanceToBlock'
-import {increaseTimeTo, duration} from './helpers/increaseTime'
-import latestTime from './helpers/latestTime'
-import EVMRevert from './helpers/EVMRevert'
-
-const BigNumber = web3.BigNumber
-
-require('chai')
-  .use(require('chai-as-promised'))
-  .use(require('chai-bignumber')(BigNumber))
-  .should()
-
-const RefundableCrowdsale = artifacts.require('./helpers/RefundableCrowdsaleImpl.sol')
-
-contract('RefundableCrowdsale', function ([_, owner, wallet, investor]) {
-
-  const rate = new BigNumber(1000)
-  const goal = ether(800)
-  const lessThanGoal = ether(750)
-
-  before(async function() {
-    //Advance to the next block to correctly read time in the solidity "now" function interpreted by testrpc
-    await advanceBlock()
-  })
-
-  beforeEach(async function () {
-    this.startTime = latestTime() + duration.weeks(1)
-    this.endTime =   this.startTime + duration.weeks(1)
-    this.afterEndTime = this.endTime + duration.seconds(1)
-
-    this.crowdsale = await RefundableCrowdsale.new(this.startTime, this.endTime, rate, wallet, goal, {from: owner})
-  })
-
-  describe('creating a valid crowdsale', function () {
-
-    it('should fail with zero goal', async function () {
-      await RefundableCrowdsale.new(this.startTime, this.endTime, rate, wallet, 0, {from: owner}).should.be.rejectedWith(EVMRevert);
-    })
-
-  });
-
-  it('should deny refunds before end', async function () {
-    await this.crowdsale.claimRefund({from: investor}).should.be.rejectedWith(EVMRevert)
-    await increaseTimeTo(this.startTime)
-    await this.crowdsale.claimRefund({from: investor}).should.be.rejectedWith(EVMRevert)
-  })
-
-  it('should deny refunds after end if goal was reached', async function () {
-    await increaseTimeTo(this.startTime)
-    await this.crowdsale.sendTransaction({value: goal, from: investor})
-    await increaseTimeTo(this.afterEndTime)
-    await this.crowdsale.claimRefund({from: investor}).should.be.rejectedWith(EVMRevert)
-  })
-
-  it('should allow refunds after end if goal was not reached', async function () {
-    await increaseTimeTo(this.startTime)
-    await this.crowdsale.sendTransaction({value: lessThanGoal, from: investor})
-    await increaseTimeTo(this.afterEndTime)
-
-    await this.crowdsale.finalize({from: owner})
-
-    const pre = web3.eth.getBalance(investor)
-    await this.crowdsale.claimRefund({from: investor, gasPrice: 0})
-			.should.be.fulfilled
-    const post = web3.eth.getBalance(investor)
-
-    post.minus(pre).should.be.bignumber.equal(lessThanGoal)
-  })
-
-  it('should forward funds to wallet after end if goal was reached', async function () {
-    await increaseTimeTo(this.startTime)
-    await this.crowdsale.sendTransaction({value: goal, from: investor})
-    await increaseTimeTo(this.afterEndTime)
-
-    const pre = web3.eth.getBalance(wallet)
-    await this.crowdsale.finalize({from: owner})
-    const post = web3.eth.getBalance(wallet)
-
-    post.minus(pre).should.be.bignumber.equal(goal)
-  })
-
-})

test/RefundableCrowdsale.test.js

+import ether from './helpers/ether';
+import { advanceBlock } from './helpers/advanceToBlock';
+import { increaseTimeTo, duration } from './helpers/increaseTime';
+import latestTime from './helpers/latestTime';
+import EVMRevert from './helpers/EVMRevert';
+
+const BigNumber = web3.BigNumber;
+
+require('chai')
+  .use(require('chai-as-promised'))
+  .use(require('chai-bignumber')(BigNumber))
+  .should();
+
+const RefundableCrowdsale = artifacts.require('./mocks/RefundableCrowdsaleImpl.sol');
+
+contract('RefundableCrowdsale', function ([_, owner, wallet, investor]) {
+  const rate = new BigNumber(1000);
+  const goal = ether(800);
+  const lessThanGoal = ether(750);
+
+  before(async function () {
+    // Advance to the next block to correctly read time in the solidity "now" function interpreted by testrpc
+    await advanceBlock();
+  });
+
+  beforeEach(async function () {
+    this.startTime = latestTime() + duration.weeks(1);
+    this.endTime = this.startTime + duration.weeks(1);
+    this.afterEndTime = this.endTime + duration.seconds(1);
+
+    this.crowdsale = await RefundableCrowdsale.new(this.startTime, this.endTime, rate, wallet, goal, { from: owner });
+  });
+
+  describe('creating a valid crowdsale', function () {
+    it('should fail with zero goal', async function () {
+      await RefundableCrowdsale.new(this.startTime, this.endTime, rate, wallet, 0, { from: owner })
+        .should.be.rejectedWith(EVMRevert);
+    });
+  });
+
+  it('should deny refunds before end', async function () {
+    await this.crowdsale.claimRefund({ from: investor }).should.be.rejectedWith(EVMRevert);
+    await increaseTimeTo(this.startTime);
+    await this.crowdsale.claimRefund({ from: investor }).should.be.rejectedWith(EVMRevert);
+  });
+
+  it('should deny refunds after end if goal was reached', async function () {
+    await increaseTimeTo(this.startTime);
+    await this.crowdsale.sendTransaction({ value: goal, from: investor });
+    await increaseTimeTo(this.afterEndTime);
+    await this.crowdsale.claimRefund({ from: investor }).should.be.rejectedWith(EVMRevert);
+  });
+
+  it('should allow refunds after end if goal was not reached', async function () {
+    await increaseTimeTo(this.startTime);
+    await this.crowdsale.sendTransaction({ value: lessThanGoal, from: investor });
+    await increaseTimeTo(this.afterEndTime);
+
+    await this.crowdsale.finalize({ from: owner });
+
+    const pre = web3.eth.getBalance(investor);
+    await this.crowdsale.claimRefund({ from: investor, gasPrice: 0 })
+      .should.be.fulfilled;
+    const post = web3.eth.getBalance(investor);
+
+    post.minus(pre).should.be.bignumber.equal(lessThanGoal);
+  });
+
+  it('should forward funds to wallet after end if goal was reached', async function () {
+    await increaseTimeTo(this.startTime);
+    await this.crowdsale.sendTransaction({ value: goal, from: investor });
+    await increaseTimeTo(this.afterEndTime);
+
+    const pre = web3.eth.getBalance(wallet);
+    await this.crowdsale.finalize({ from: owner });
+    const post = web3.eth.getBalance(wallet);
+
+    post.minus(pre).should.be.bignumber.equal(goal);
+  });
+});

test/SafeERC20.js → test/SafeERC20.test.js

@@ -4,10 +4,9 @@ require('chai')
   .use(require('chai-as-promised'))
   .should();
 
-const SafeERC20Helper = artifacts.require('./helpers/SafeERC20Helper.sol');
+const SafeERC20Helper = artifacts.require('./mocks/SafeERC20Helper.sol');
 
 contract('SafeERC20', function () {
-
   beforeEach(async function () {
     this.helper = await SafeERC20Helper.new();
   });

test/SafeMath.js → test/SafeMath.test.js

 const assertRevert = require('./helpers/assertRevert');
 const assertJump = require('./helpers/assertJump');
-var SafeMathMock = artifacts.require("./helpers/SafeMathMock.sol");
-
-contract('SafeMath', function(accounts) {
+var SafeMathMock = artifacts.require('./mocks/SafeMathMock.sol');
 
+contract('SafeMath', function (accounts) {
   let safeMath;
 
-  before(async function() {
+  before(async function () {
     safeMath = await SafeMathMock.new();
   });
 
-  it("multiplies correctly", async function() {
+  it('multiplies correctly', async function () {
     let a = 5678;
     let b = 1234;
-    let mult = await safeMath.multiply(a, b);
+    await safeMath.multiply(a, b);
     let result = await safeMath.result();
-    assert.equal(result, a*b);
+    assert.equal(result, a * b);
   });
 
-  it("adds correctly", async function() {
+  it('adds correctly', async function () {
     let a = 5678;
     let b = 1234;
-    let add = await safeMath.add(a, b);
+    await safeMath.add(a, b);
     let result = await safeMath.result();
 
-    assert.equal(result, a+b);
+    assert.equal(result, a + b);
   });
 
-  it("subtracts correctly", async function() {
+  it('subtracts correctly', async function () {
     let a = 5678;
     let b = 1234;
-    let subtract = await safeMath.subtract(a, b);
+    await safeMath.subtract(a, b);
     let result = await safeMath.result();
 
-    assert.equal(result, a-b);
+    assert.equal(result, a - b);
   });
 
-  it("should throw an error if subtraction result would be negative", async function () {
+  it('should throw an error if subtraction result would be negative', async function () {
     let a = 1234;
     let b = 5678;
     try {
-      let subtract = await safeMath.subtract(a, b);
+      await safeMath.subtract(a, b);
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertJump(error);
     }
   });
 
-  it("should throw an error on addition overflow", async function() {
+  it('should throw an error on addition overflow', async function () {
     let a = 115792089237316195423570985008687907853269984665640564039457584007913129639935;
     let b = 1;
     try {
-      let add = await safeMath.add(a, b);
+      await safeMath.add(a, b);
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
   });
 
-  it("should throw an error on multiplication overflow", async function() {
+  it('should throw an error on multiplication overflow', async function () {
     let a = 115792089237316195423570985008687907853269984665640564039457584007913129639933;
     let b = 2;
     try {
-      let multiply = await safeMath.multiply(a, b);
+      await safeMath.multiply(a, b);
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
   });
-
 });

test/SampleCrowdsale.js → test/SampleCrowdsale.test.js

-import ether from './helpers/ether'
-import {advanceBlock} from './helpers/advanceToBlock'
-import {increaseTimeTo, duration} from './helpers/increaseTime'
-import latestTime from './helpers/latestTime'
-import EVMRevert from './helpers/EVMRevert'
+import ether from './helpers/ether';
+import { advanceBlock } from './helpers/advanceToBlock';
+import { increaseTimeTo, duration } from './helpers/increaseTime';
+import latestTime from './helpers/latestTime';
+import EVMRevert from './helpers/EVMRevert';
 
 const BigNumber = web3.BigNumber;
 
-const should = require('chai')
+require('chai')
   .use(require('chai-as-promised'))
   .use(require('chai-bignumber')(BigNumber))
   .should();
@@ -14,42 +14,47 @@ const should = require('chai')
 const SampleCrowdsale = artifacts.require('SampleCrowdsale');
 const SampleCrowdsaleToken = artifacts.require('SampleCrowdsaleToken');
 
-contract('Crowdsale', function ([owner, wallet, investor]) {
-
+contract('SampleCrowdsale', function ([owner, wallet, investor]) {
   const RATE = new BigNumber(10);
   const GOAL = ether(10);
-  const CAP  = ether(20);
+  const CAP = ether(20);
 
-  before(async function() {
-    //Advance to the next block to correctly read time in the solidity "now" function interpreted by testrpc
-    await advanceBlock()
-  })
+  before(async function () {
+    // Advance to the next block to correctly read time in the solidity "now" function interpreted by testrpc
+    await advanceBlock();
+  });
 
   beforeEach(async function () {
     this.startTime = latestTime() + duration.weeks(1);
-    this.endTime =   this.startTime + duration.weeks(1);
+    this.endTime = this.startTime + duration.weeks(1);
     this.afterEndTime = this.endTime + duration.seconds(1);
 
     this.crowdsale = await SampleCrowdsale.new(this.startTime, this.endTime, RATE, GOAL, CAP, wallet);
     this.token = SampleCrowdsaleToken.at(await this.crowdsale.token());
   });
 
-
   it('should create crowdsale with correct parameters', async function () {
     this.crowdsale.should.exist;
     this.token.should.exist;
 
-    (await this.crowdsale.startTime()).should.be.bignumber.equal(this.startTime);
-    (await this.crowdsale.endTime()).should.be.bignumber.equal(this.endTime);
-    (await this.crowdsale.rate()).should.be.bignumber.equal(RATE);
-    (await this.crowdsale.wallet()).should.be.equal(wallet);
-    (await this.crowdsale.goal()).should.be.bignumber.equal(GOAL);
-    (await this.crowdsale.cap()).should.be.bignumber.equal(CAP);
+    const startTime = await this.crowdsale.startTime();
+    const endTime = await this.crowdsale.endTime();
+    const rate = await this.crowdsale.rate();
+    const walletAddress = await this.crowdsale.wallet();
+    const goal = await this.crowdsale.goal();
+    const cap = await this.crowdsale.cap();
+
+    startTime.should.be.bignumber.equal(this.startTime);
+    endTime.should.be.bignumber.equal(this.endTime);
+    rate.should.be.bignumber.equal(RATE);
+    walletAddress.should.be.equal(wallet);
+    goal.should.be.bignumber.equal(GOAL);
+    cap.should.be.bignumber.equal(CAP);
   });
 
   it('should not accept payments before start', async function () {
     await this.crowdsale.send(ether(1)).should.be.rejectedWith(EVMRevert);
-    await this.crowdsale.buyTokens(investor, {from: investor, value: ether(1)}).should.be.rejectedWith(EVMRevert);
+    await this.crowdsale.buyTokens(investor, { from: investor, value: ether(1) }).should.be.rejectedWith(EVMRevert);
   });
 
   it('should accept payments during the sale', async function () {
@@ -57,7 +62,7 @@ contract('Crowdsale', function ([owner, wallet, investor]) {
     const expectedTokenAmount = RATE.mul(investmentAmount);
 
     await increaseTimeTo(this.startTime);
-    await this.crowdsale.buyTokens(investor, {value: investmentAmount, from: investor}).should.be.fulfilled;
+    await this.crowdsale.buyTokens(investor, { value: investmentAmount, from: investor }).should.be.fulfilled;
 
     (await this.token.balanceOf(investor)).should.be.bignumber.equal(expectedTokenAmount);
     (await this.token.totalSupply()).should.be.bignumber.equal(expectedTokenAmount);
@@ -66,7 +71,7 @@ contract('Crowdsale', function ([owner, wallet, investor]) {
   it('should reject payments after end', async function () {
     await increaseTimeTo(this.afterEnd);
     await this.crowdsale.send(ether(1)).should.be.rejectedWith(EVMRevert);
-    await this.crowdsale.buyTokens(investor, {value: ether(1), from: investor}).should.be.rejectedWith(EVMRevert);
+    await this.crowdsale.buyTokens(investor, { value: ether(1), from: investor }).should.be.rejectedWith(EVMRevert);
   });
 
   it('should reject payments over cap', async function () {
@@ -81,7 +86,7 @@ contract('Crowdsale', function ([owner, wallet, investor]) {
 
     const beforeFinalization = web3.eth.getBalance(wallet);
     await increaseTimeTo(this.afterEndTime);
-    await this.crowdsale.finalize({from: owner});
+    await this.crowdsale.finalize({ from: owner });
     const afterFinalization = web3.eth.getBalance(wallet);
 
     afterFinalization.minus(beforeFinalization).should.be.bignumber.equal(GOAL);
@@ -91,14 +96,13 @@ contract('Crowdsale', function ([owner, wallet, investor]) {
     const balanceBeforeInvestment = web3.eth.getBalance(investor);
 
     await increaseTimeTo(this.startTime);
-    await this.crowdsale.sendTransaction({value: ether(1), from: investor, gasPrice: 0});
+    await this.crowdsale.sendTransaction({ value: ether(1), from: investor, gasPrice: 0 });
     await increaseTimeTo(this.afterEndTime);
 
-    await this.crowdsale.finalize({from: owner});
-    await this.crowdsale.claimRefund({from: investor, gasPrice: 0}).should.be.fulfilled;
+    await this.crowdsale.finalize({ from: owner });
+    await this.crowdsale.claimRefund({ from: investor, gasPrice: 0 }).should.be.fulfilled;
 
     const balanceAfterRefund = web3.eth.getBalance(investor);
     balanceBeforeInvestment.should.be.bignumber.equal(balanceAfterRefund);
   });
-
 });

test/SplitPayment.js

-const BigNumber = web3.BigNumber
-
-const should = require('chai')
-  .use(require('chai-as-promised'))
-  .use(require('chai-bignumber')(BigNumber))
-  .should()
-
-const EVMThrow = require('./helpers/EVMThrow.js')
-const SplitPayment = artifacts.require('../contracts/payment/SplitPayment.sol')
-
-contract('SplitPayment', function ([owner, payee1, payee2, payee3, nonpayee1, payer1]) {
-  const amount = web3.toWei(1.0, 'ether')
-
-  beforeEach(async function () {
-    this.payees = [payee1, payee2, payee3]
-    this.shares = [20, 10, 70]
-
-    this.contract = await SplitPayment.new(this.payees, this.shares)
-  })
-
-  it('should accept payments', async function () {
-    await web3.eth.sendTransaction({ from: owner, to: this.contract.address, value: amount })
-
-    const balance = web3.eth.getBalance(this.contract.address)
-    balance.should.be.bignumber.equal(amount)
-  })
-
-  it('should store shares if address is payee', async function () {
-    const shares = await this.contract.shares.call(payee1)
-    shares.should.be.bignumber.not.equal(0)
-  })
-
-  it('should not store shares if address is not payee', async function () {
-    const shares = await this.contract.shares.call(nonpayee1)
-    shares.should.be.bignumber.equal(0)
-  })
-
-  it('should throw if no funds to claim', async function () {
-    await this.contract.claim({from: payee1}).should.be.rejectedWith(EVMThrow)
-  })
-
-  it('should throw if non-payee want to claim', async function () {
-    await web3.eth.sendTransaction({from: payer1, to: this.contract.address, value: amount})
-    await this.contract.claim({from: nonpayee1}).should.be.rejectedWith(EVMThrow)
-  })
-
-  it('should distribute funds to payees', async function () {
-    await web3.eth.sendTransaction({from: payer1, to: this.contract.address, value: amount})
-
-    // receive funds
-    const initBalance = web3.eth.getBalance(this.contract.address)
-    initBalance.should.be.bignumber.equal(amount)
-
-    // distribute to payees
-    const initAmount1 = web3.eth.getBalance(payee1)
-    await this.contract.claim({from: payee1})
-    const profit1 = web3.eth.getBalance(payee1) - initAmount1
-    assert(Math.abs(profit1 - web3.toWei(0.20, 'ether')) < 1e16)
-
-    const initAmount2 = web3.eth.getBalance(payee2)
-    await this.contract.claim({from: payee2})
-    const profit2 = web3.eth.getBalance(payee2) - initAmount2
-    assert(Math.abs(profit2 - web3.toWei(0.10, 'ether')) < 1e16)
-
-    const initAmount3 = web3.eth.getBalance(payee3)
-    await this.contract.claim({from: payee3})
-    const profit3 = web3.eth.getBalance(payee3) - initAmount3
-    assert(Math.abs(profit3 - web3.toWei(0.70, 'ether')) < 1e16)
-
-    // end balance should be zero
-    const endBalance = web3.eth.getBalance(this.contract.address)
-    endBalance.should.be.bignumber.equal(0)
-
-    // check correct funds released accounting
-    const totalReleased = await this.contract.totalReleased.call()
-    totalReleased.should.be.bignumber.equal(initBalance)
-  })
-})

test/SplitPayment.test.js

+const BigNumber = web3.BigNumber;
+
+require('chai')
+  .use(require('chai-as-promised'))
+  .use(require('chai-bignumber')(BigNumber))
+  .should();
+
+const EVMThrow = require('./helpers/EVMThrow.js');
+const SplitPayment = artifacts.require('../contracts/payment/SplitPayment.sol');
+
+contract('SplitPayment', function ([owner, payee1, payee2, payee3, nonpayee1, payer1]) {
+  const amount = web3.toWei(1.0, 'ether');
+
+  beforeEach(async function () {
+    this.payees = [payee1, payee2, payee3];
+    this.shares = [20, 10, 70];
+
+    this.contract = await SplitPayment.new(this.payees, this.shares);
+  });
+
+  it('should accept payments', async function () {
+    await web3.eth.sendTransaction({ from: owner, to: this.contract.address, value: amount });
+
+    const balance = web3.eth.getBalance(this.contract.address);
+    balance.should.be.bignumber.equal(amount);
+  });
+
+  it('should store shares if address is payee', async function () {
+    const shares = await this.contract.shares.call(payee1);
+    shares.should.be.bignumber.not.equal(0);
+  });
+
+  it('should not store shares if address is not payee', async function () {
+    const shares = await this.contract.shares.call(nonpayee1);
+    shares.should.be.bignumber.equal(0);
+  });
+
+  it('should throw if no funds to claim', async function () {
+    await this.contract.claim({ from: payee1 }).should.be.rejectedWith(EVMThrow);
+  });
+
+  it('should throw if non-payee want to claim', async function () {
+    await web3.eth.sendTransaction({ from: payer1, to: this.contract.address, value: amount });
+    await this.contract.claim({ from: nonpayee1 }).should.be.rejectedWith(EVMThrow);
+  });
+
+  it('should distribute funds to payees', async function () {
+    await web3.eth.sendTransaction({ from: payer1, to: this.contract.address, value: amount });
+
+    // receive funds
+    const initBalance = web3.eth.getBalance(this.contract.address);
+    initBalance.should.be.bignumber.equal(amount);
+
+    // distribute to payees
+    const initAmount1 = web3.eth.getBalance(payee1);
+    await this.contract.claim({ from: payee1 });
+    const profit1 = web3.eth.getBalance(payee1) - initAmount1;
+    assert(Math.abs(profit1 - web3.toWei(0.20, 'ether')) < 1e16);
+
+    const initAmount2 = web3.eth.getBalance(payee2);
+    await this.contract.claim({ from: payee2 });
+    const profit2 = web3.eth.getBalance(payee2) - initAmount2;
+    assert(Math.abs(profit2 - web3.toWei(0.10, 'ether')) < 1e16);
+
+    const initAmount3 = web3.eth.getBalance(payee3);
+    await this.contract.claim({ from: payee3 });
+    const profit3 = web3.eth.getBalance(payee3) - initAmount3;
+    assert(Math.abs(profit3 - web3.toWei(0.70, 'ether')) < 1e16);
+
+    // end balance should be zero
+    const endBalance = web3.eth.getBalance(this.contract.address);
+    endBalance.should.be.bignumber.equal(0);
+
+    // check correct funds released accounting
+    const totalReleased = await this.contract.totalReleased.call();
+    totalReleased.should.be.bignumber.equal(initBalance);
+  });
+});

test/StandardToken.js → test/StandardToken.test.js

-'use strict';
 
 const assertRevert = require('./helpers/assertRevert');
-const expectThrow = require('./helpers/expectThrow');
-var StandardTokenMock = artifacts.require('./helpers/StandardTokenMock.sol');
 
-contract('StandardToken', function(accounts) {
+var StandardTokenMock = artifacts.require('./mocks/StandardTokenMock.sol');
 
+contract('StandardToken', function (accounts) {
   let token;
 
-  beforeEach(async function() {
+  beforeEach(async function () {
     token = await StandardTokenMock.new(accounts[0], 100);
   });
 
-  it('should return the correct totalSupply after construction', async function() {
+  it('should return the correct totalSupply after construction', async function () {
     let totalSupply = await token.totalSupply();
 
     assert.equal(totalSupply, 100);
   });
 
-  it('should return the correct allowance amount after approval', async function() {
+  it('should return the correct allowance amount after approval', async function () {
     let token = await StandardTokenMock.new();
     await token.approve(accounts[1], 100);
     let allowance = await token.allowance(accounts[0], accounts[1]);
@@ -26,7 +24,7 @@ contract('StandardToken', function(accounts) {
     assert.equal(allowance, 100);
   });
 
-  it('should return correct balances after transfer', async function() {
+  it('should return correct balances after transfer', async function () {
     let token = await StandardTokenMock.new(accounts[0], 100);
     await token.transfer(accounts[1], 100);
     let balance0 = await token.balanceOf(accounts[0]);
@@ -36,20 +34,20 @@ contract('StandardToken', function(accounts) {
     assert.equal(balance1, 100);
   });
 
-  it('should throw an error when trying to transfer more than balance', async function() {
+  it('should throw an error when trying to transfer more than balance', async function () {
     let token = await StandardTokenMock.new(accounts[0], 100);
     try {
       await token.transfer(accounts[1], 101);
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
   });
 
-  it('should return correct balances after transfering from another account', async function() {
+  it('should return correct balances after transfering from another account', async function () {
     let token = await StandardTokenMock.new(accounts[0], 100);
     await token.approve(accounts[1], 100);
-    await token.transferFrom(accounts[0], accounts[2], 100, {from: accounts[1]});
+    await token.transferFrom(accounts[0], accounts[2], 100, { from: accounts[1] });
 
     let balance0 = await token.balanceOf(accounts[0]);
     assert.equal(balance0, 0);
@@ -61,71 +59,70 @@ contract('StandardToken', function(accounts) {
     assert.equal(balance2, 0);
   });
 
-  it('should throw an error when trying to transfer more than allowed', async function() {
+  it('should throw an error when trying to transfer more than allowed', async function () {
     await token.approve(accounts[1], 99);
     try {
-      await token.transferFrom(accounts[0], accounts[2], 100, {from: accounts[1]});
+      await token.transferFrom(accounts[0], accounts[2], 100, { from: accounts[1] });
       assert.fail('should have thrown before');
     } catch (error) {
       assertRevert(error);
     }
   });
 
-  it('should throw an error when trying to transferFrom more than _from has', async function() {
+  it('should throw an error when trying to transferFrom more than _from has', async function () {
     let balance0 = await token.balanceOf(accounts[0]);
     await token.approve(accounts[1], 99);
     try {
-      await token.transferFrom(accounts[0], accounts[2], balance0+1, {from: accounts[1]});
+      await token.transferFrom(accounts[0], accounts[2], balance0 + 1, { from: accounts[1] });
       assert.fail('should have thrown before');
     } catch (error) {
       assertRevert(error);
     }
   });
 
-  describe('validating allowance updates to spender', function() {
+  describe('validating allowance updates to spender', function () {
     let preApproved;
 
-    it('should start with zero', async function() {
+    it('should start with zero', async function () {
       preApproved = await token.allowance(accounts[0], accounts[1]);
       assert.equal(preApproved, 0);
-    })
+    });
 
-    it('should increase by 50 then decrease by 10', async function() {
+    it('should increase by 50 then decrease by 10', async function () {
       await token.increaseApproval(accounts[1], 50);
       let postIncrease = await token.allowance(accounts[0], accounts[1]);
       preApproved.plus(50).should.be.bignumber.equal(postIncrease);
       await token.decreaseApproval(accounts[1], 10);
       let postDecrease = await token.allowance(accounts[0], accounts[1]);
       postIncrease.minus(10).should.be.bignumber.equal(postDecrease);
-    })
+    });
   });
 
-  it('should increase by 50 then set to 0 when decreasing by more than 50', async function() {
+  it('should increase by 50 then set to 0 when decreasing by more than 50', async function () {
     await token.approve(accounts[1], 50);
     await token.decreaseApproval(accounts[1], 60);
     let postDecrease = await token.allowance(accounts[0], accounts[1]);
     postDecrease.should.be.bignumber.equal(0);
-});
+  });
 
-  it('should throw an error when trying to transfer to 0x0', async function() {
+  it('should throw an error when trying to transfer to 0x0', async function () {
     let token = await StandardTokenMock.new(accounts[0], 100);
     try {
-      let transfer = await token.transfer(0x0, 100);
+      await token.transfer(0x0, 100);
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
   });
 
-  it('should throw an error when trying to transferFrom to 0x0', async function() {
+  it('should throw an error when trying to transferFrom to 0x0', async function () {
     let token = await StandardTokenMock.new(accounts[0], 100);
     await token.approve(accounts[1], 100);
     try {
-      let transfer = await token.transferFrom(accounts[0], 0x0, 100, {from: accounts[1]});
+      await token.transferFrom(accounts[0], 0x0, 100, { from: accounts[1] });
       assert.fail('should have thrown before');
-    } catch(error) {
+    } catch (error) {
       assertRevert(error);
     }
   });
-
 });

test/TokenDestructible.js → test/TokenDestructible.test.js

-'use strict';
 
 var TokenDestructible = artifacts.require('../contracts/lifecycle/TokenDestructible.sol');
-var StandardTokenMock = artifacts.require("./helpers/StandardTokenMock.sol");
+var StandardTokenMock = artifacts.require('./mocks/StandardTokenMock.sol');
 require('./helpers/transactionMined.js');
 
-contract('TokenDestructible', function(accounts) {
+contract('TokenDestructible', function (accounts) {
   let destructible;
 
-  beforeEach(async function() {
-    destructible = await TokenDestructible.new({fron: accounts[0], value: web3.toWei('10', 'ether')});
+  beforeEach(async function () {
+    destructible = await TokenDestructible.new({ fron: accounts[0], value: web3.toWei('10', 'ether') });
   });
 
-  it('should send balance to owner after destruction', async function() {
+  it('should send balance to owner after destruction', async function () {
     let owner = await destructible.owner();
     let initBalance = web3.eth.getBalance(owner);
-    await destructible.destroy([], {from: owner});
+    await destructible.destroy([], { from: owner });
     let newBalance = web3.eth.getBalance(owner);
     assert.isTrue(newBalance > initBalance);
   });
 
-  it('should send tokens to owner after destruction', async function() {
+  it('should send tokens to owner after destruction', async function () {
     let owner = await destructible.owner();
     let token = await StandardTokenMock.new(destructible.address, 100);
     let initContractBalance = await token.balanceOf(destructible.address);
     let initOwnerBalance = await token.balanceOf(owner);
     assert.equal(initContractBalance, 100);
     assert.equal(initOwnerBalance, 0);
-    await destructible.destroy([token.address], {from: owner});
+    await destructible.destroy([token.address], { from: owner });
     let newContractBalance = await token.balanceOf(destructible.address);
     let newOwnerBalance = await token.balanceOf(owner);
     assert.equal(newContractBalance, 0);

test/TokenTimelock.js

-const BigNumber = web3.BigNumber
-
-require('chai')
-  .use(require('chai-as-promised'))
-  .use(require('chai-bignumber')(BigNumber))
-  .should()
-
-
-import latestTime from './helpers/latestTime'
-import {increaseTimeTo, duration} from './helpers/increaseTime'
-
-const MintableToken = artifacts.require('MintableToken')
-const TokenTimelock = artifacts.require('TokenTimelock')
-
-contract('TokenTimelock', function ([_, owner, beneficiary]) {
-
-  const amount = new BigNumber(100)
-
-  beforeEach(async function () {
-    this.token = await MintableToken.new({from: owner})
-    this.releaseTime = latestTime() + duration.years(1)
-    this.timelock = await TokenTimelock.new(this.token.address, beneficiary, this.releaseTime)
-    await this.token.mint(this.timelock.address, amount, {from: owner})
-  })
-
-  it('cannot be released before time limit', async function () {
-    await this.timelock.release().should.be.rejected
-  })
-
-  it('cannot be released just before time limit', async function () {
-    await increaseTimeTo(this.releaseTime - duration.seconds(3))
-    await this.timelock.release().should.be.rejected
-  })
-
-  it('can be released just after limit', async function () {
-    await increaseTimeTo(this.releaseTime + duration.seconds(1))
-    await this.timelock.release().should.be.fulfilled
-    const balance = await this.token.balanceOf(beneficiary)
-    balance.should.be.bignumber.equal(amount)
-  })
-
-  it('can be released after time limit', async function () {
-    await increaseTimeTo(this.releaseTime + duration.years(1))
-    await this.timelock.release().should.be.fulfilled
-    const balance = await this.token.balanceOf(beneficiary)
-    balance.should.be.bignumber.equal(amount)
-  })
-
-  it('cannot be released twice', async function () {
-    await increaseTimeTo(this.releaseTime + duration.years(1))
-    await this.timelock.release().should.be.fulfilled
-    await this.timelock.release().should.be.rejected
-    const balance = await this.token.balanceOf(beneficiary)
-    balance.should.be.bignumber.equal(amount)
-  })
-
-})

test/TokenTimelock.test.js

+import latestTime from './helpers/latestTime';
+import { increaseTimeTo, duration } from './helpers/increaseTime';
+
+const BigNumber = web3.BigNumber;
+
+require('chai')
+  .use(require('chai-as-promised'))
+  .use(require('chai-bignumber')(BigNumber))
+  .should();
+
+const MintableToken = artifacts.require('MintableToken');
+const TokenTimelock = artifacts.require('TokenTimelock');
+
+contract('TokenTimelock', function ([_, owner, beneficiary]) {
+  const amount = new BigNumber(100);
+
+  beforeEach(async function () {
+    this.token = await MintableToken.new({ from: owner });
+    this.releaseTime = latestTime() + duration.years(1);
+    this.timelock = await TokenTimelock.new(this.token.address, beneficiary, this.releaseTime);
+    await this.token.mint(this.timelock.address, amount, { from: owner });
+  });
+
+  it('cannot be released before time limit', async function () {
+    await this.timelock.release().should.be.rejected;
+  });
+
+  it('cannot be released just before time limit', async function () {
+    await increaseTimeTo(this.releaseTime - duration.seconds(3));
+    await this.timelock.release().should.be.rejected;
+  });
+
+  it('can be released just after limit', async function () {
+    await increaseTimeTo(this.releaseTime + duration.seconds(1));
+    await this.timelock.release().should.be.fulfilled;
+    const balance = await this.token.balanceOf(beneficiary);
+    balance.should.be.bignumber.equal(amount);
+  });
+
+  it('can be released after time limit', async function () {
+    await increaseTimeTo(this.releaseTime + duration.years(1));
+    await this.timelock.release().should.be.fulfilled;
+    const balance = await this.token.balanceOf(beneficiary);
+    balance.should.be.bignumber.equal(amount);
+  });
+
+  it('cannot be released twice', async function () {
+    await increaseTimeTo(this.releaseTime + duration.years(1));
+    await this.timelock.release().should.be.fulfilled;
+    await this.timelock.release().should.be.rejected;
+    const balance = await this.token.balanceOf(beneficiary);
+    balance.should.be.bignumber.equal(amount);
+  });
+});

test/TokenVesting.js → test/TokenVesting.test.js

-const BigNumber = web3.BigNumber
+import EVMRevert from './helpers/EVMRevert';
+import latestTime from './helpers/latestTime';
+import { increaseTimeTo, duration } from './helpers/increaseTime';
+
+const BigNumber = web3.BigNumber;
 
 require('chai')
   .use(require('chai-as-promised'))
   .use(require('chai-bignumber')(BigNumber))
   .should();
 
-import EVMRevert from './helpers/EVMRevert'
-import latestTime from './helpers/latestTime';
-import {increaseTimeTo, duration} from './helpers/increaseTime';
-
 const MintableToken = artifacts.require('MintableToken');
 const TokenVesting = artifacts.require('TokenVesting');
 
 contract('TokenVesting', function ([_, owner, beneficiary]) {
-
   const amount = new BigNumber(1000);
 
   beforeEach(async function () {
@@ -75,7 +74,7 @@ contract('TokenVesting', function ([_, owner, beneficiary]) {
   });
 
   it('should fail to be revoked by owner if revocable not set', async function () {
-    const vesting = await TokenVesting.new(beneficiary, this.start, this.cliff, this.duration, false, { from: owner } );
+    const vesting = await TokenVesting.new(beneficiary, this.start, this.cliff, this.duration, false, { from: owner });
     await vesting.revoke(this.token.address, { from: owner }).should.be.rejectedWith(EVMRevert);
   });
 
@@ -105,11 +104,10 @@ contract('TokenVesting', function ([_, owner, beneficiary]) {
   it('should fail to be revoked a second time', async function () {
     await increaseTimeTo(this.start + this.cliff + duration.weeks(12));
 
-    const vested = await this.vesting.vestedAmount(this.token.address);
+    await this.vesting.vestedAmount(this.token.address);
 
     await this.vesting.revoke(this.token.address, { from: owner });
 
     await this.vesting.revoke(this.token.address, { from: owner }).should.be.rejectedWith(EVMRevert);
   });
-
 });

test/helpers/EVMRevert.js

-export default 'revert'
+export default 'revert';

test/helpers/EVMThrow.js

-export default 'invalid opcode'
+export default 'invalid opcode';

test/helpers/advanceToBlock.js

-export function advanceBlock() {
+export function advanceBlock () {
   return new Promise((resolve, reject) => {
     web3.currentProvider.sendAsync({
       jsonrpc: '2.0',
       method: 'evm_mine',
       id: Date.now(),
     }, (err, res) => {
-      return err ? reject(err) : resolve(res)
-    })
-  })
+      return err ? reject(err) : resolve(res);
+    });
+  });
 }
 
 // Advances the block number so that the last mined block is `number`.
-export default async function advanceToBlock(number) {
+export default async function advanceToBlock (number) {
   if (web3.eth.blockNumber > number) {
-    throw Error(`block number ${number} is in the past (current is ${web3.eth.blockNumber})`)
+    throw Error(`block number ${number} is in the past (current is ${web3.eth.blockNumber})`);
   }
 
   while (web3.eth.blockNumber < number) {
-    await advanceBlock()
+    await advanceBlock();
   }
 }

test/helpers/assertJump.js

-module.exports = function(error) {
+module.exports = function (error) {
   assert.isAbove(error.message.search('invalid opcode'), -1, 'Invalid opcode error must be returned');
-}
+};

test/helpers/assertRevert.js

-module.exports = function(error) {
+module.exports = function (error) {
   assert.isAbove(error.message.search('revert'), -1, 'Error containing "revert" must be returned');
-}
+};

test/helpers/ether.js

-export default function ether(n) {
-  return new web3.BigNumber(web3.toWei(n, 'ether'))
+export default function ether (n) {
+  return new web3.BigNumber(web3.toWei(n, 'ether'));
 }

test/helpers/expectThrow.js

@@ -13,7 +13,7 @@ export default async promise => {
     const revert = error.message.search('revert') >= 0;
     assert(
       invalidOpcode || outOfGas || revert,
-      "Expected throw, got '" + error + "' instead",
+      'Expected throw, got \'' + error + '\' instead',
     );
     return;
   }

test/helpers/hashMessage.js

 import utils from 'ethereumjs-util';
 
 // Hash and add same prefix to the hash that testrpc use.
-module.exports = function(message) {
-  const messageHex = new Buffer(utils.sha3(message).toString('hex'), 'hex');
+module.exports = function (message) {
+  const messageHex = Buffer.from(utils.sha3(message).toString('hex'), 'hex');
   const prefix = utils.toBuffer('\u0019Ethereum Signed Message:\n' + messageHex.length.toString());
-  return utils.bufferToHex( utils.sha3(Buffer.concat([prefix, messageHex])) );
+  return utils.bufferToHex(utils.sha3(Buffer.concat([prefix, messageHex])));
 };

test/helpers/increaseTime.js

-import latestTime from './latestTime'
+import latestTime from './latestTime';
 
 // Increases testrpc time by the passed duration in seconds
-export default function increaseTime(duration) {
-  const id = Date.now()
+export default function increaseTime (duration) {
+  const id = Date.now();
 
   return new Promise((resolve, reject) => {
     web3.currentProvider.sendAsync({
@@ -11,17 +11,17 @@ export default function increaseTime(duration) {
       params: [duration],
       id: id,
     }, err1 => {
-      if (err1) return reject(err1)
+      if (err1) return reject(err1);
 
       web3.currentProvider.sendAsync({
         jsonrpc: '2.0',
         method: 'evm_mine',
-        id: id+1,
+        id: id + 1,
       }, (err2, res) => {
-        return err2 ? reject(err2) : resolve(res)
-      })
-    })
-  })
+        return err2 ? reject(err2) : resolve(res);
+      });
+    });
+  });
 }
 
 /**
@@ -31,7 +31,7 @@ export default function increaseTime(duration) {
  *
  * @param target time in seconds
  */
-export function increaseTimeTo(target) {
+export function increaseTimeTo (target) {
   let now = latestTime();
   if (target < now) throw Error(`Cannot increase current time(${now}) to a moment in the past(${target})`);
   let diff = target - now;
@@ -39,10 +39,10 @@ export function increaseTimeTo(target) {
 }
 
 export const duration = {
-  seconds: function(val) { return val},
-  minutes: function(val) { return val * this.seconds(60) },
-  hours:   function(val) { return val * this.minutes(60) },
-  days:    function(val) { return val * this.hours(24) },
-  weeks:   function(val) { return val * this.days(7) },
-  years:   function(val) { return val * this.days(365)}
+  seconds: function (val) { return val; },
+  minutes: function (val) { return val * this.seconds(60); },
+  hours: function (val) { return val * this.minutes(60); },
+  days: function (val) { return val * this.hours(24); },
+  weeks: function (val) { return val * this.days(7); },
+  years: function (val) { return val * this.days(365); },
 };

test/helpers/latestTime.js

 // Returns the time of the last mined block in seconds
-export default function latestTime() {
+export default function latestTime () {
   return web3.eth.getBlock('latest').timestamp;
 }

test/helpers/merkleTree.js

-import { sha3, bufferToHex } from "ethereumjs-util";
+import { sha3, bufferToHex } from 'ethereumjs-util';
 
 export default class MerkleTree {
-  constructor(elements) {
+  constructor (elements) {
     // Filter empty strings and hash elements
     this.elements = elements.filter(el => el).map(el => sha3(el));
 
@@ -14,9 +14,9 @@ export default class MerkleTree {
     this.layers = this.getLayers(this.elements);
   }
 
-  getLayers(elements) {
-    if (elements.length == 0) {
-      return [[""]];
+  getLayers (elements) {
+    if (elements.length === 0) {
+      return [['']];
     }
 
     const layers = [];
@@ -30,7 +30,7 @@ export default class MerkleTree {
     return layers;
   }
 
-  getNextLayer(elements) {
+  getNextLayer (elements) {
     return elements.reduce((layer, el, idx, arr) => {
       if (idx % 2 === 0) {
         // Hash the current element with its pair element
@@ -41,26 +41,26 @@ export default class MerkleTree {
     }, []);
   }
 
-  combinedHash(first, second) {
+  combinedHash (first, second) {
     if (!first) { return second; }
     if (!second) { return first; }
 
     return sha3(this.sortAndConcat(first, second));
   }
 
-  getRoot() {
+  getRoot () {
     return this.layers[this.layers.length - 1][0];
   }
 
-  getHexRoot() {
+  getHexRoot () {
     return bufferToHex(this.getRoot());
   }
 
-  getProof(el) {
+  getProof (el) {
     let idx = this.bufIndexOf(el, this.elements);
 
     if (idx === -1) {
-      throw new Error("Element does not exist in Merkle tree");
+      throw new Error('Element does not exist in Merkle tree');
     }
 
     return this.layers.reduce((proof, layer) => {
@@ -76,13 +76,13 @@ export default class MerkleTree {
     }, []);
   }
 
-  getHexProof(el) {
+  getHexProof (el) {
     const proof = this.getProof(el);
 
     return this.bufArrToHex(proof);
   }
 
-  getPairElement(idx, layer) {
+  getPairElement (idx, layer) {
     const pairIdx = idx % 2 === 0 ? idx + 1 : idx - 1;
 
     if (pairIdx < layer.length) {
@@ -92,7 +92,7 @@ export default class MerkleTree {
     }
   }
 
-  bufIndexOf(el, arr) {
+  bufIndexOf (el, arr) {
     let hash;
 
     // Convert element to 32 byte hash if it is not one already
@@ -111,21 +111,21 @@ export default class MerkleTree {
     return -1;
   }
 
-  bufDedup(elements) {
+  bufDedup (elements) {
     return elements.filter((el, idx) => {
       return this.bufIndexOf(el, elements) === idx;
     });
   }
 
-  bufArrToHex(arr) {
+  bufArrToHex (arr) {
     if (arr.some(el => !Buffer.isBuffer(el))) {
-      throw new Error("Array is not an array of buffers");
+      throw new Error('Array is not an array of buffers');
     }
 
-    return "0x" + arr.map(el => el.toString("hex")).join("");
+    return '0x' + arr.map(el => el.toString('hex')).join('');
   }
 
-  sortAndConcat(...args) {
+  sortAndConcat (...args) {
     return Buffer.concat([...args].sort(Buffer.compare));
   }
 }

test/helpers/toPromise.js

 export default func =>
   (...args) =>
-    new Promise((accept, reject) =>
-      func(...args, (error, data) => error ? reject(error) : accept(data)));
+    new Promise((resolve, reject) =>
+      func(...args, (error, data) => error ? reject(error) : resolve(data)));

test/helpers/transactionMined.js

-'use strict';
 
-//from https://gist.github.com/xavierlepretre/88682e871f4ad07be4534ae560692ee6
+// from https://gist.github.com/xavierlepretre/88682e871f4ad07be4534ae560692ee6
 module.export = web3.eth.transactionMined = function (txnHash, interval) {
   var transactionReceiptAsync;
-  interval = interval ? interval : 500;
-  transactionReceiptAsync = function(txnHash, resolve, reject) {
+  interval = interval || 500;
+  transactionReceiptAsync = function (txnHash, resolve, reject) {
     try {
       var receipt = web3.eth.getTransactionReceipt(txnHash);
       if (receipt === null) {
@@ -14,7 +13,7 @@ module.export = web3.eth.transactionMined = function (txnHash, interval) {
       } else {
         resolve(receipt);
       }
-    } catch(e) {
+    } catch (e) {
       reject(e);
     }
   };

truffle-config.js

+require('dotenv').config();
 require('babel-register');
 require('babel-polyfill');
 
-var provider;
-var HDWalletProvider = require('truffle-hdwallet-provider');
-var mnemonic = '[REDACTED]';
+const HDWalletProvider = require('truffle-hdwallet-provider');
 
-if (!process.env.SOLIDITY_COVERAGE){
-  provider = new HDWalletProvider(mnemonic, 'https://ropsten.infura.io/')
-}
+const providerWithMnemonic = (mnemonic, rpcEndpoint) =>
+  new HDWalletProvider(mnemonic, rpcEndpoint);
 
+const infuraProvider = network => providerWithMnemonic(
+  process.env.MNEMONIC || '',
+  `https://${network}.infura.io/${process.env.INFURA_API_KEY}`
+);
+
+const ropstenProvider = process.env.SOLIDITY_COVERAGE
+  ? undefined
+  : infuraProvider('ropsten');
 
 module.exports = {
   networks: {
     development: {
       host: 'localhost',
       port: 8545,
-      network_id: '*'
+      network_id: '*', // eslint-disable-line camelcase
     },
     ropsten: {
-      provider: provider,
-      network_id: 3 // official id of the ropsten network
+      provider: ropstenProvider,
+      network_id: 3, // eslint-disable-line camelcase
     },
     coverage: {
-      host: "localhost",
-      network_id: "*",
+      host: 'localhost',
+      network_id: '*', // eslint-disable-line camelcase
       port: 8555,
       gas: 0xfffffffffff,
-      gasPrice: 0x01
-    }
-  }
+      gasPrice: 0x01,
+    },
+    testrpc: {
+      host: 'localhost',
+      port: 8545,
+      network_id: '*', // eslint-disable-line camelcase
+    },
+    ganache: {
+      host: 'localhost',
+      port: 7545,
+      network_id: '*', // eslint-disable-line camelcase
+    },
+  },
 };