fix remaining tests

contracts/crowdsale/validation/PausableCrowdsale.sol

 pragma solidity ^0.5.0;
 
+import "zos-lib/contracts/Initializable.sol";
+
 import "../Crowdsale.sol";
 import "../../lifecycle/Pausable.sol";
 
@@ -7,7 +9,13 @@ import "../../lifecycle/Pausable.sol";
  * @title PausableCrowdsale
  * @dev Extension of Crowdsale contract where purchases can be paused and unpaused by the pauser role.
  */
-contract PausableCrowdsale is Crowdsale, Pausable {
+contract PausableCrowdsale is Initializable, Crowdsale, Pausable {
+    function initialize(address sender) public initializer {
+        assert(Crowdsale._hasBeenInitialized());
+
+        Pausable.initialize(sender);
+    }
+
     /**
      * @dev Validation of an incoming purchase. Use require statements to revert state when conditions are not met.
      * Use super to concatenate validations.

contracts/mocks/PausableCrowdsaleImpl.sol

@@ -6,5 +6,6 @@ import "../crowdsale/validation/PausableCrowdsale.sol";
 contract PausableCrowdsaleImpl is PausableCrowdsale {
     constructor (uint256 _rate, address payable _wallet, ERC20 _token) public {
       Crowdsale.initialize(_rate, _wallet, _token);
+      PausableCrowdsale.initialize(msg.sender);
     }
 }

contracts/mocks/WhitelistedRoleMock.sol

@@ -3,6 +3,10 @@ pragma solidity ^0.5.0;
 import "../access/roles/WhitelistedRole.sol";
 
 contract WhitelistedRoleMock is WhitelistedRole {
+    constructor() public {
+      WhitelistedRole._initialize(msg.sender);
+    }
+
     function onlyWhitelistedMock() public view onlyWhitelisted {
         // solhint-disable-previous-line no-empty-blocks
     }

test/ownership/Ownable.test.js

-const { shouldFail } = require('../helpers/shouldFail');
+const shouldFail = require('../helpers/shouldFail');
 
 require('../helpers/setup');