[io.js] Update jsdom and get jest working on io.js

This gets jest working on io.js 1.8.x and 2.0.x. io.js is reconciling with the Node Foundation so users who are still on Node are on the upgrade path that converges with io.js anyway. What this means is the jest version probably should be bumped to 0.5.0, where 0.4.x is a maintenance branch for legacy Node (typically with semver, a major version bump is required but 0.x.x releases are considered a free-for-all).

This diff is near the minimal amount of work to bring jest up to date and pass all of its tests.

 - Upgraded npm dependencies. The major update is jsdom from 0.10.3 to 5.4.3. This lets us drop the indirect contextify dependency.
 - Removed harmonize, since io.js uses modern V8 and enables stable ES6 features by default
 - Removed the `--harmony` flag from the TestRunner for the same reason (trivia: i added that line once upon a time, let me delete it)
 - Replaced jsdom's `run` with io.js's built-in `vm` module
 - Added support for curried arguments in the fake `nextTick` implementation, which io.js itself relies on
 - Updated the HasteModuleLoader to handle Node built-in modules before `node_modules` -- this fixes an issue I was getting with graceful-fs trying to require smalloc.
 - Patched coffeescript to use Array.isArray instead of `instanceof Array`. Working on getting that merged upstream.

Test Plan:
```
nvm install iojs-1
rm -fr node_modules && npm install

nvm install iojs-2
rm -fr node_modules && npm install
```

bin/jest.js

@@ -10,7 +10,6 @@
 'use strict';
 
 var fs = require('fs');
-var harmonize = require('harmonize');
 var optimist = require('optimist');
 var path = require('path');
 
@@ -36,8 +35,6 @@ function _wrapDesc(desc) {
   }, ['']).join(indent);
 }
 
-harmonize();
-
 var argv = optimist
   .usage('Usage: $0 [--config=<pathToConfigFile>] [TestPathRegExp]')
   .options({

package.json

@@ -4,32 +4,30 @@
   "version": "0.4.5",
   "main": "src/jest.js",
   "dependencies": {
-    "coffee-script": "^1.8.0",
-    "cover": "~0.2.8",
-    "diff": "~1.0.4",
-    "graceful-fs": "^2.0.3",
-    "harmonize": "1.4.2",
-    "istanbul": "^0.3.2",
-    "jasmine-only": "0.1.0",
-    "jasmine-pit": "~2.0.0",
-    "jsdom": "~0.10.3",
+    "coffee-script": "ide/coffeescript#array-check",
+    "cover": "^0.2.9",
+    "diff": "^1.4.0",
+    "graceful-fs": "^3.0.7",
+    "istanbul": "^0.3.14",
+    "jasmine-only": "^0.1.1",
+    "jasmine-pit": "^2.0.2",
+    "jsdom": "^5.4.2",
     "node-haste": "^1.2.8",
-    "node-worker-pool": "~2.4.2",
-    "optimist": "~0.6.0",
-    "q": "~0.9.7",
-    "resolve": "~0.6.1",
-    "through": "^2.3.4",
-    "lodash.template": "^3.0.0"
+    "node-worker-pool": "^2.4.4",
+    "optimist": "^0.6.1",
+    "q": "^1.4.1",
+    "resolve": "^1.1.6",
+    "through": "^2.3.7"
   },
   "devDependencies": {
-    "jshint": "~2.5.0",
-    "node-find-files": "0.0.2"
+    "jshint": "^2.7.0",
+    "node-find-files": "0.0.4"
   },
   "bin": {
     "jest": "./bin/jest.js"
   },
   "engines": {
-    "node": "0.8.x || 0.10.x"
+    "node": ">= 1"
   },
   "repository": {
     "type": "git",

src/HasteModuleLoader/HasteModuleLoader.js

@@ -129,15 +129,6 @@ function Loader(config, environment, resourceMap) {
   this._configShouldMockModuleNames = {};
 
   if (_configUnmockListRegExpCache === null) {
-    // Node must have been run with --harmony in order for WeakMap to be
-    // available prior to version 0.12
-    if (typeof WeakMap !== 'function') {
-      throw new Error(
-        'Please run node with the --harmony flag! jest requires WeakMap ' +
-        'which is only available with the --harmony flag in node < v0.12'
-      );
-    }
-
     _configUnmockListRegExpCache = new WeakMap();
   }
 
@@ -862,14 +853,14 @@ Loader.prototype.requireModule = function(currPath, moduleName,
     modulePath = manualMockResource.path;
   }
 
-  if (!modulePath) {
-    modulePath = this._moduleNameToPath(currPath, moduleName);
-  }
-
   if (NODE_CORE_MODULES[moduleName]) {
     return require(moduleName);
   }
 
+  if (!modulePath) {
+    modulePath = this._moduleNameToPath(currPath, moduleName);
+  }
+
   // Always natively require the jasmine runner.
   if (modulePath.indexOf(VENDOR_PATH) === 0) {
     return require(modulePath);

src/JSDomEnvironment.js

@@ -9,6 +9,8 @@
 
 var FakeTimers = require('./lib/FakeTimers');
 
+var vm = require('vm');
+
 function _deepCopy(obj) {
   var newObj = {};
   var value;
@@ -29,7 +31,7 @@ function JSDomEnvironment(config) {
   // use it (depending on the context -- such as TestRunner.js when operating as
   // a workerpool parent), this is the best way to ensure we only spend time
   // require()ing this when necessary.
-  this.global = require('./lib/jsdom-compat').jsdom().parentWindow;
+  this.global = require('./lib/jsdom-compat').jsdom().defaultView;
 
   // Node's error-message stack size is limited at 10, but it's pretty useful to
   // see more than that when a test fails.
@@ -52,7 +54,6 @@ function JSDomEnvironment(config) {
   this.global.Uint32Array = Uint32Array;
   this.global.DataView = DataView;
   this.global.Buffer = Buffer;
-  this.global.process = process;
   this.global.setImmediate = setImmediate;
   this.global.clearImmediate = clearImmediate;
 
@@ -105,7 +106,10 @@ JSDomEnvironment.prototype.dispose = function() {
 };
 
 JSDomEnvironment.prototype.runSourceText = function(sourceText, fileName) {
-  return this.global.run(sourceText, fileName);
+  var sandbox = vm.createContext(this.global);
+  return vm.runInContext(sourceText, sandbox, {
+    filename: fileName,
+  });
 };
 
 JSDomEnvironment.prototype.runWithRealTimers = function(cb) {

src/TestRunner.js

@@ -494,7 +494,6 @@ TestRunner.prototype._createParallelTestRun = function(
     this._opts.maxWorkers,
     this._opts.nodePath,
     this._opts.nodeArgv.concat([
-      '--harmony',
       TEST_WORKER_PATH,
       '--config=' + JSON.stringify(this._config)
     ])

src/jasmineTestRunner/JasmineReporter.js

@@ -201,14 +201,7 @@ JasmineReporter.prototype._prettyPrint = function(obj, indent, cycleWeakMap) {
       ')';
     }
 
-    /* jshint camelcase:false */
     if (!cycleWeakMap) {
-      if (typeof WeakMap !== 'function') {
-        throw new Error(
-          'Please run node with the --harmony flag! jest requires WeakMap ' +
-          'which is only available with the --harmony flag in node < v0.12'
-        );
-      }
       cycleWeakMap = new WeakMap();
     }
 
@@ -231,6 +224,7 @@ JasmineReporter.prototype._prettyPrint = function(obj, indent, cycleWeakMap) {
         this._prettyPrint(value, indent + keyIndent, cycleWeakMap)
       );
     }
+    /* jshint camelcase:false */
     delete obj.__jstest_pp_cycle__;
     return '{\n' + keysOutput.join(',\n') + '\n' + indent + '}';
   } else {

src/jasmineTestRunner/jasmineTestRunner.js

@@ -54,15 +54,6 @@ function jasmineTestRunner(config, environment, moduleLoader, testPath) {
     // Install jasmine-only
     environment.runSourceText(jasmineOnlyContent);
 
-    // Node must have been run with --harmony in order for WeakMap to be
-    // available prior to version 0.12
-    if (typeof WeakMap !== 'function') {
-      throw new Error(
-        'Please run node with the --harmony flag! jest requires WeakMap ' +
-        'which is only available with the --harmony flag in node < v0.12'
-      );
-    }
-
     // Mainline Jasmine sets __Jasmine_been_here_before__ on each object to
     // detect cycles, but that doesn't work on frozen objects so we use a
     // WeakMap instead.

src/lib/FakeTimers.js

@@ -315,6 +315,11 @@ FakeTimers.prototype._fakeClearImmediate = function(uuid) {
 };
 
 FakeTimers.prototype._fakeNextTick = function(callback) {
+  var args = [];
+  for (var ii = 1, ll = arguments.length; ii < ll; ii++) {
+    args.push(arguments[ii]);
+  }
+
   var uuid = this._uuidCounter++;
   this._ticks.push({
     uuid: uuid,
@@ -326,7 +331,7 @@ FakeTimers.prototype._fakeNextTick = function(callback) {
     if (!cancelledTicks.hasOwnProperty(uuid)) {
       // Callback may throw, so update the map prior calling.
       cancelledTicks[uuid] = true;
-      callback();
+      callback.apply(null, args);
     }
   });
 };