ensure test/tmp directory exists to avoid tests failing to run

test/cache.test.js

@@ -3,6 +3,10 @@ var assert = require('assert');
 var helper = require('./support/helper');
 
 describe('cache', function() {
+    before(function(done) {
+        helper.ensureExists('test/tmp',done);
+    });
+
     it('should cache Database objects while opening', function(done) {
         var filename = 'test/tmp/test_cache.db';
         helper.deleteFile(filename);

test/null_error.test.js

@@ -7,8 +7,11 @@ describe('null error', function() {
     var db;
 
     before(function(done) {
-        helper.deleteFile(filename);
-        db = new sqlite3.Database(filename, done);
+        helper.ensureExists('test/tmp',function(err) {
+            if (err) throw err;
+            helper.deleteFile(filename);
+            db = new sqlite3.Database(filename, done);
+        });
     });
 
     it('should create a table', function(done) {

test/open_close.test.js

@@ -4,6 +4,10 @@ var fs = require('fs');
 var helper = require('./support/helper');
 
 describe('open/close', function() {
+    before(function(done) {
+        helper.ensureExists('test/tmp',done);
+    });
+
     describe('open and close non-existant database', function() {
         before(function() {
             helper.deleteFile('test/tmp/test_create.db');

test/parallel_insert.test.js

@@ -6,7 +6,9 @@ describe('parallel', function() {
     var db;
     before(function(done) {
         helper.deleteFile('test/tmp/test_parallel_inserts.db');
-        db = new sqlite3.Database('test/tmp/test_parallel_inserts.db', done);
+        helper.ensureExists('test/tmp',function(err){
+            db = new sqlite3.Database('test/tmp/test_parallel_inserts.db', done);
+        });
     });
 
     var columns = [];

test/support/helper.js

 var assert = require('assert');
 var fs = require('fs');
+var pathExists = require('fs').exists || require('path').exists;
 
 exports.deleteFile = function(name) {
     try {
@@ -11,6 +12,17 @@ exports.deleteFile = function(name) {
     }
 };
 
+exports.ensureExists = function(name,cb) {
+    pathExists(name,function(exists) {
+        if (!exists) {
+            fs.mkdir(name,function(err) {
+                return cb(err);
+            });
+        }
+        return cb(null);
+    });
+}
+
 assert.fileDoesNotExist = function(name) {
     try {
         fs.statSync(name);