feat(command): ng test command runs karma

Overrode the ember-cli test command to initialize the karma server
Then start the karma server based upon the karma.conf.js config file

closes #70

addon/ng2/commands/test.js

@@ -0,0 +1,30 @@
+'use strict';
+
+var chalk        = require('chalk');
+var Command      = require('ember-cli/lib/models/command');
+var Promise      = require('ember-cli/lib/ext/promise');
+var Project      = require('ember-cli/lib/models/project');
+var SilentError        = require('silent-error');
+var validProjectName   = require('ember-cli/lib/utilities/valid-project-name');
+var normalizeBlueprint = require('ember-cli/lib/utilities/normalize-blueprint-option');
+
+var TestCommand = require('ember-cli/lib/commands/test');
+var childProcess = require('child_process')
+
+module.exports = TestCommand.extend({
+
+    init: function(){
+      var cwd = process.cwd();
+      this.karma = this.karma || require(cwd + '/node_modules/karma/lib/index');
+      this.karmaConfig = this.karmaConfig || cwd + '/karma.conf';
+      this.server = this.server || new this.karma.Server({configFile: this.karmaConfig});
+    },
+
+    run: function(commandOptions, rawArgs) {
+      return new Promise(function(){
+        return this.server.start();
+      }.bind(this));
+    }
+});
+
+module.exports.overrideCore = true;

addon/ng2/index.js

@@ -6,7 +6,8 @@ module.exports = {
   includedCommands: function() {
     return {
       'new': require('./commands/new'),
-      'init': require('./commands/init')
+      'init': require('./commands/init'),
+      'test': require('./commands/test')
     };
   }
 };

tests/acceptance/test.spec.js

@@ -0,0 +1,53 @@
+'use strict';
+
+var fs = require('fs-extra');
+var ng = require('../helpers/ng');
+var existsSync = require('exists-sync');
+var expect = require('chai').expect;
+var forEach = require('lodash/collection/forEach');
+var walkSync = require('walk-sync');
+var Blueprint = require('ember-cli/lib/models/blueprint');
+var path = require('path');
+var tmp = require('../helpers/tmp');
+var root = process.cwd();
+var util = require('util');
+var conf = require('ember-cli/tests/helpers/conf');
+var EOL = require('os').EOL;
+
+describe('Acceptance: ng test', function () {
+  before(conf.setup);
+
+  after(conf.restore);
+
+  beforeEach(function () {
+    return tmp.setup('./tmp')
+      .then(function () {
+        process.chdir('./tmp');
+      })
+      .then(function () {
+        return ng([
+          'init',
+          '--skip-npm',
+          '--skip-bower'
+        ]);
+      });
+  });
+
+  afterEach(function () {
+    this.timeout(10000);
+
+    return tmp.teardown('./tmp');
+  });
+
+  it('ng test should excecute a test', function () {
+    console.log('starting test');
+    return ng([
+      'test',
+      '--skip-npm',
+      '--skip-bower'
+    ])
+      .then(function () {
+        console.log('test completed');
+      });
+  });
+});