Repository: mochajs/mocha

Problem statement:
use semistandard
We have some code standards in place, but not enough.  We have disabled many warnings which we probably shouldn't have, to avoid changing too much code when we picked up ESLint originally.  I'd also prefer to use a widely-used style instead of a custom style.
- Install eslint-semistandard-config and all necessary dependencies
- Update `.eslintrc` to be just `{"extends": "semistandard"}`
- `eslint --fix` everything
- Manually fix everything else

If anyone disagrees, please let me know.  Unless that disagreement involves "semicolons"; if so, please keep it to yourself.  :smile:



Hints:
Great move! 👍 


Patch:
diff --git a/.eslintrc.js b/.eslintrc.js
new file mode 100644
--- /dev/null
+++ b/.eslintrc.js
@@ -0,0 +1,3 @@
+module.exports = {
+  "extends": "semistandard"
+};
diff --git a/browser-entry.js b/browser-entry.js
--- a/browser-entry.js
+++ b/browser-entry.js
@@ -35,12 +35,12 @@ var originalOnerrorHandler = global.onerror;
  * Revert to original onerror handler if previously defined.
  */
 
-process.removeListener = function(e, fn) {
+process.removeListener = function (e, fn) {
   if (e === 'uncaughtException') {
     if (originalOnerrorHandler) {
       global.onerror = originalOnerrorHandler;
     } else {
-      global.onerror = function() {};
+      global.onerror = function () {};
     }
     var i = Mocha.utils.indexOf(uncaughtExceptionHandlers, fn);
     if (i !== -1) {
@@ -53,9 +53,9 @@ process.removeListener = function(e, fn) {
  * Implements uncaughtException listener.
  */
 
-process.on = function(e, fn) {
+process.on = function (e, fn) {
   if (e === 'uncaughtException') {
-    global.onerror = function(err, url, line) {
+    global.onerror = function (err, url, line) {
       fn(new Error(err + ' (' + url + ':' + line + ')'));
       return !mocha.allowUncaught;
     };
@@ -71,7 +71,7 @@ mocha.suite.removeAllListeners('pre-require');
 var immediateQueue = [];
 var immediateTimeout;
 
-function timeslice() {
+function timeslice () {
   var immediateStart = new Date().getTime();
   while (immediateQueue.length && (new Date().getTime() - immediateStart) < 100) {
     immediateQueue.shift()();
@@ -87,7 +87,7 @@ function timeslice() {
  * High-performance override of Runner.immediately.
  */
 
-Mocha.Runner.immediately = function(callback) {
+Mocha.Runner.immediately = function (callback) {
   immediateQueue.push(callback);
   if (!immediateTimeout) {
     immediateTimeout = setTimeout(timeslice, 0);
@@ -99,8 +99,8 @@ Mocha.Runner.immediately = function(callback) {
  * This is useful when running tests in a browser because window.onerror will
  * only receive the 'message' attribute of the Error.
  */
-mocha.throwError = function(err) {
-  Mocha.utils.forEach(uncaughtExceptionHandlers, function(fn) {
+mocha.throwError = function (err) {
+  Mocha.utils.forEach(uncaughtExceptionHandlers, function (fn) {
     fn(err);
   });
   throw err;
@@ -111,7 +111,7 @@ mocha.throwError = function(err) {
  * Normally this would happen in Mocha.prototype.loadFiles.
  */
 
-mocha.ui = function(ui) {
+mocha.ui = function (ui) {
   Mocha.prototype.ui.call(this, ui);
   this.suite.emit('pre-require', global, null, this);
   return this;
@@ -121,7 +121,7 @@ mocha.ui = function(ui) {
  * Setup mocha with the given setting options.
  */
 
-mocha.setup = function(opts) {
+mocha.setup = function (opts) {
   if (typeof opts === 'string') {
     opts = { ui: opts };
   }
@@ -137,7 +137,7 @@ mocha.setup = function(opts) {
  * Run mocha, returning the Runner.
  */
 
-mocha.run = function(fn) {
+mocha.run = function (fn) {
   var options = mocha.options;
   mocha.globals('location');
 
@@ -152,7 +152,7 @@ mocha.run = function(fn) {
     mocha.invert();
   }
 
-  return Mocha.prototype.run.call(mocha, function(err) {
+  return Mocha.prototype.run.call(mocha, function (err) {
     // The DOM Document is not available in Web Workers.
     var document = global.document;
     if (document && document.getElementById('mocha') && options.noHighlighting !== true) {
diff --git a/karma.conf.js b/karma.conf.js
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -5,7 +5,7 @@ var path = require('path');
 var mkdirp = require('mkdirp');
 var baseBundleDirpath = path.join(__dirname, '.karma');
 
-module.exports = function(config) {
+module.exports = function (config) {
   var bundleDirpath;
   var cfg = {
     frameworks: [
@@ -31,12 +31,12 @@ module.exports = function(config) {
     },
     browserify: {
       debug: true,
-      configure: function configure(b) {
+      configure: function configure (b) {
         b.ignore('glob')
           .ignore('fs')
           .ignore('path')
           .ignore('supports-color')
-          .on('bundled', function(err, content) {
+          .on('bundled', function (err, content) {
             if (!err && bundleDirpath) {
               // write bundle to directory for debugging
               fs.writeFileSync(path.join(bundleDirpath,
@@ -70,8 +70,8 @@ module.exports = function(config) {
       if (env.SAUCE_USERNAME && env.SAUCE_ACCESS_KEY) {
         // correlate build/tunnel with Travis
         sauceConfig = {
-          build: 'TRAVIS #' + env.TRAVIS_BUILD_NUMBER
-          + ' (' + env.TRAVIS_BUILD_ID + ')',
+          build: 'TRAVIS #' + env.TRAVIS_BUILD_NUMBER +
+          ' (' + env.TRAVIS_BUILD_ID + ')',
           tunnelIdentifier: env.TRAVIS_JOB_NUMBER
         };
         console.error('Configured SauceLabs');
@@ -124,7 +124,7 @@ module.exports = function(config) {
   config.set(cfg);
 };
 
-function addSauceTests(cfg) {
+function addSauceTests (cfg) {
   cfg.reporters.push('saucelabs');
 
   cfg.customLaunchers = {
diff --git a/lib/browser/debug.js b/lib/browser/debug.js
--- a/lib/browser/debug.js
+++ b/lib/browser/debug.js
@@ -1,4 +1,4 @@
 /* eslint-disable no-unused-vars */
-module.exports = function(type) {
-  return function() {};
+module.exports = function (type) {
+  return function () {};
 };
diff --git a/lib/browser/events.js b/lib/browser/events.js
--- a/lib/browser/events.js
+++ b/lib/browser/events.js
@@ -16,7 +16,7 @@ var objToString = Object.prototype.toString;
  * @param {*} val The value to test.
  * @return {boolean} true if the value is an array, otherwise false.
  */
-function isArray(val) {
+function isArray (val) {
   return objToString.call(val) === '[object Array]';
 }
 
@@ -25,7 +25,7 @@ function isArray(val) {
  *
  * @api public
  */
-function EventEmitter() {}
+function EventEmitter () {}
 
 /**
  * Add a listener.
@@ -35,7 +35,7 @@ function EventEmitter() {}
  * @param {Function} fn Event handler.
  * @return {EventEmitter} Emitter instance.
  */
-EventEmitter.prototype.on = function(name, fn) {
+EventEmitter.prototype.on = function (name, fn) {
   if (!this.$events) {
     this.$events = {};
   }
@@ -61,10 +61,10 @@ EventEmitter.prototype.addListener = EventEmitter.prototype.on;
  * @param {Function} fn Event handler.
  * @return {EventEmitter} Emitter instance.
  */
-EventEmitter.prototype.once = function(name, fn) {
+EventEmitter.prototype.once = function (name, fn) {
   var self = this;
 
-  function on() {
+  function on () {
     self.removeListener(name, on);
     fn.apply(this, arguments);
   }
@@ -83,7 +83,7 @@ EventEmitter.prototype.once = function(name, fn) {
  * @param {Function} fn Event handler.
  * @return {EventEmitter} Emitter instance.
  */
-EventEmitter.prototype.removeListener = function(name, fn) {
+EventEmitter.prototype.removeListener = function (name, fn) {
   if (this.$events && this.$events[name]) {
     var list = this.$events[name];
 
@@ -121,7 +121,7 @@ EventEmitter.prototype.removeListener = function(name, fn) {
  * @param {string} name Event name.
  * @return {EventEmitter} Emitter instance.
  */
-EventEmitter.prototype.removeAllListeners = function(name) {
+EventEmitter.prototype.removeAllListeners = function (name) {
   if (name === undefined) {
     this.$events = {};
     return this;
@@ -141,7 +141,7 @@ EventEmitter.prototype.removeAllListeners = function(name) {
  * @param {string} name Event name.
  * @return {EventEmitter} Emitter instance.
  */
-EventEmitter.prototype.listeners = function(name) {
+EventEmitter.prototype.listeners = function (name) {
   if (!this.$events) {
     this.$events = {};
   }
@@ -164,7 +164,7 @@ EventEmitter.prototype.listeners = function(name) {
  * @param {string} name Event name.
  * @return {boolean} true if at least one handler was invoked, else false.
  */
-EventEmitter.prototype.emit = function(name) {
+EventEmitter.prototype.emit = function (name) {
   if (!this.$events) {
     return false;
   }
diff --git a/lib/browser/progress.js b/lib/browser/progress.js
--- a/lib/browser/progress.js
+++ b/lib/browser/progress.js
@@ -7,7 +7,7 @@ module.exports = Progress;
 /**
  * Initialize a new `Progress` indicator.
  */
-function Progress() {
+function Progress () {
   this.percent = 0;
   this.size(0);
   this.fontSize(11);
@@ -21,7 +21,7 @@ function Progress() {
  * @param {number} size
  * @return {Progress} Progress instance.
  */
-Progress.prototype.size = function(size) {
+Progress.prototype.size = function (size) {
   this._size = size;
   return this;
 };
@@ -33,7 +33,7 @@ Progress.prototype.size = function(size) {
  * @param {string} text
  * @return {Progress} Progress instance.
  */
-Progress.prototype.text = function(text) {
+Progress.prototype.text = function (text) {
   this._text = text;
   return this;
 };
@@ -45,7 +45,7 @@ Progress.prototype.text = function(text) {
  * @param {number} size
  * @return {Progress} Progress instance.
  */
-Progress.prototype.fontSize = function(size) {
+Progress.prototype.fontSize = function (size) {
   this._fontSize = size;
   return this;
 };
@@ -56,7 +56,7 @@ Progress.prototype.fontSize = function(size) {
  * @param {string} family
  * @return {Progress} Progress instance.
  */
-Progress.prototype.font = function(family) {
+Progress.prototype.font = function (family) {
   this._font = family;
   return this;
 };
@@ -67,7 +67,7 @@ Progress.prototype.font = function(family) {
  * @param {number} n
  * @return {Progress} Progress instance.
  */
-Progress.prototype.update = function(n) {
+Progress.prototype.update = function (n) {
   this.percent = n;
   return this;
 };
@@ -78,7 +78,7 @@ Progress.prototype.update = function(n) {
  * @param {CanvasRenderingContext2d} ctx
  * @return {Progress} Progress instance.
  */
-Progress.prototype.draw = function(ctx) {
+Progress.prototype.draw = function (ctx) {
   try {
     var percent = Math.min(this.percent, 100);
     var size = this._size;
diff --git a/lib/browser/tty.js b/lib/browser/tty.js
--- a/lib/browser/tty.js
+++ b/lib/browser/tty.js
@@ -1,8 +1,8 @@
-exports.isatty = function isatty() {
+exports.isatty = function isatty () {
   return true;
 };
 
-exports.getWindowSize = function getWindowSize() {
+exports.getWindowSize = function getWindowSize () {
   if ('innerHeight' in global) {
     return [global.innerHeight, global.innerWidth];
   }
diff --git a/lib/context.js b/lib/context.js
--- a/lib/context.js
+++ b/lib/context.js
@@ -15,7 +15,7 @@ module.exports = Context;
  *
  * @api private
  */
-function Context() {}
+function Context () {}
 
 /**
  * Set or get the context `Runnable` to `runnable`.
@@ -24,7 +24,7 @@ function Context() {}
  * @param {Runnable} runnable
  * @return {Context}
  */
-Context.prototype.runnable = function(runnable) {
+Context.prototype.runnable = function (runnable) {
   if (!arguments.length) {
     return this._runnable;
   }
@@ -39,7 +39,7 @@ Context.prototype.runnable = function(runnable) {
  * @param {number} ms
  * @return {Context} self
  */
-Context.prototype.timeout = function(ms) {
+Context.prototype.timeout = function (ms) {
   if (!arguments.length) {
     return this.runnable().timeout();
   }
@@ -54,7 +54,7 @@ Context.prototype.timeout = function(ms) {
  * @param {boolean} enabled
  * @return {Context} self
  */
-Context.prototype.enableTimeouts = function(enabled) {
+Context.prototype.enableTimeouts = function (enabled) {
   this.runnable().enableTimeouts(enabled);
   return this;
 };
@@ -66,7 +66,7 @@ Context.prototype.enableTimeouts = function(enabled) {
  * @param {number} ms
  * @return {Context} self
  */
-Context.prototype.slow = function(ms) {
+Context.prototype.slow = function (ms) {
   this.runnable().slow(ms);
   return this;
 };
@@ -77,7 +77,7 @@ Context.prototype.slow = function(ms) {
  * @api private
  * @return {Context} self
  */
-Context.prototype.skip = function() {
+Context.prototype.skip = function () {
   this.runnable().skip();
   return this;
 };
@@ -89,7 +89,7 @@ Context.prototype.skip = function() {
  * @param {number} n
  * @return {Context} self
  */
-Context.prototype.retries = function(n) {
+Context.prototype.retries = function (n) {
   if (!arguments.length) {
     return this.runnable().retries();
   }
@@ -103,8 +103,8 @@ Context.prototype.retries = function(n) {
  * @api private
  * @return {string}
  */
-Context.prototype.inspect = function() {
-  return JSON.stringify(this, function(key, val) {
+Context.prototype.inspect = function () {
+  return JSON.stringify(this, function (key, val) {
     return key === 'runnable' || key === 'test' ? undefined : val;
   }, 2);
 };
diff --git a/lib/hook.js b/lib/hook.js
--- a/lib/hook.js
+++ b/lib/hook.js
@@ -18,7 +18,7 @@ module.exports = Hook;
  * @param {Function} fn
  * @api private
  */
-function Hook(title, fn) {
+function Hook (title, fn) {
   Runnable.call(this, title, fn);
   this.type = 'hook';
 }
@@ -35,7 +35,7 @@ inherits(Hook, Runnable);
  * @return {Error}
  * @api public
  */
-Hook.prototype.error = function(err) {
+Hook.prototype.error = function (err) {
   if (!arguments.length) {
     err = this._error;
     this._error = null;
diff --git a/lib/interfaces/bdd.js b/lib/interfaces/bdd.js
--- a/lib/interfaces/bdd.js
+++ b/lib/interfaces/bdd.js
@@ -21,10 +21,10 @@ var Test = require('../test');
  *
  * @param {Suite} suite Root suite.
  */
-module.exports = function(suite) {
+module.exports = function (suite) {
   var suites = [suite];
 
-  suite.on('pre-require', function(context, file, mocha) {
+  suite.on('pre-require', function (context, file, mocha) {
     var common = require('./common')(suites, context, mocha);
 
     context.before = common.before;
@@ -38,7 +38,7 @@ module.exports = function(suite) {
      * and/or tests.
      */
 
-    context.describe = context.context = function(title, fn) {
+    context.describe = context.context = function (title, fn) {
       return common.suite.create({
         title: title,
         file: file,
@@ -50,7 +50,7 @@ module.exports = function(suite) {
      * Pending describe.
      */
 
-    context.xdescribe = context.xcontext = context.describe.skip = function(title, fn) {
+    context.xdescribe = context.xcontext = context.describe.skip = function (title, fn) {
       return common.suite.skip({
         title: title,
         file: file,
@@ -62,7 +62,7 @@ module.exports = function(suite) {
      * Exclusive suite.
      */
 
-    context.describe.only = function(title, fn) {
+    context.describe.only = function (title, fn) {
       return common.suite.only({
         title: title,
         file: file,
@@ -76,7 +76,7 @@ module.exports = function(suite) {
      * acting as a thunk.
      */
 
-    context.it = context.specify = function(title, fn) {
+    context.it = context.specify = function (title, fn) {
       var suite = suites[0];
       if (suite.isPending()) {
         fn = null;
@@ -91,7 +91,7 @@ module.exports = function(suite) {
      * Exclusive test-case.
      */
 
-    context.it.only = function(title, fn) {
+    context.it.only = function (title, fn) {
       return common.test.only(mocha, context.it(title, fn));
     };
 
@@ -99,14 +99,14 @@ module.exports = function(suite) {
      * Pending test case.
      */
 
-    context.xit = context.xspecify = context.it.skip = function(title) {
+    context.xit = context.xspecify = context.it.skip = function (title) {
       context.it(title);
     };
 
     /**
      * Number of attempts to retry.
      */
-    context.it.retries = function(n) {
+    context.it.retries = function (n) {
       context.retries(n);
     };
   });
diff --git a/lib/interfaces/common.js b/lib/interfaces/common.js
--- a/lib/interfaces/common.js
+++ b/lib/interfaces/common.js
@@ -10,7 +10,7 @@ var Suite = require('../suite');
  * @param {Mocha} mocha
  * @return {Object} An object containing common functions.
  */
-module.exports = function(suites, context, mocha) {
+module.exports = function (suites, context, mocha) {
   return {
     /**
      * This is only present if flag --delay is passed into Mocha. It triggers
@@ -19,8 +19,8 @@ module.exports = function(suites, context, mocha) {
      * @param {Suite} suite The root wuite.
      * @return {Function} A function which runs the root suite
      */
-    runWithSuite: function runWithSuite(suite) {
-      return function run() {
+    runWithSuite: function runWithSuite (suite) {
+      return function run () {
         suite.run();
       };
     },
@@ -31,7 +31,7 @@ module.exports = function(suites, context, mocha) {
      * @param {string} name
      * @param {Function} fn
      */
-    before: function(name, fn) {
+    before: function (name, fn) {
       suites[0].beforeAll(name, fn);
     },
 
@@ -41,7 +41,7 @@ module.exports = function(suites, context, mocha) {
      * @param {string} name
      * @param {Function} fn
      */
-    after: function(name, fn) {
+    after: function (name, fn) {
       suites[0].afterAll(name, fn);
     },
 
@@ -51,7 +51,7 @@ module.exports = function(suites, context, mocha) {
      * @param {string} name
      * @param {Function} fn
      */
-    beforeEach: function(name, fn) {
+    beforeEach: function (name, fn) {
       suites[0].beforeEach(name, fn);
     },
 
@@ -61,7 +61,7 @@ module.exports = function(suites, context, mocha) {
      * @param {string} name
      * @param {Function} fn
      */
-    afterEach: function(name, fn) {
+    afterEach: function (name, fn) {
       suites[0].afterEach(name, fn);
     },
 
@@ -73,7 +73,7 @@ module.exports = function(suites, context, mocha) {
        * @param {Object} opts
        * @returns {Suite}
        */
-      only: function only(opts) {
+      only: function only (opts) {
         mocha.options.hasOnly = true;
         opts.isOnly = true;
         return this.create(opts);
@@ -86,7 +86,7 @@ module.exports = function(suites, context, mocha) {
        * @param {Object} opts
        * @returns {Suite}
        */
-      skip: function skip(opts) {
+      skip: function skip (opts) {
         opts.pending = true;
         return this.create(opts);
       },
@@ -101,7 +101,7 @@ module.exports = function(suites, context, mocha) {
        * @param {boolean} [opts.isOnly] Is Suite exclusive?
        * @returns {Suite}
        */
-      create: function create(opts) {
+      create: function create (opts) {
         var suite = Suite.create(suites[0], opts.title);
         suite.pending = Boolean(opts.pending);
         suite.file = opts.file;
@@ -130,7 +130,7 @@ module.exports = function(suites, context, mocha) {
        * @param {Function} test
        * @returns {*}
        */
-      only: function(mocha, test) {
+      only: function (mocha, test) {
         test.parent._onlyTests = test.parent._onlyTests.concat(test);
         mocha.options.hasOnly = true;
         return test;
@@ -141,7 +141,7 @@ module.exports = function(suites, context, mocha) {
        *
        * @param {string} title
        */
-      skip: function(title) {
+      skip: function (title) {
         context.test(title);
       },
 
@@ -150,7 +150,7 @@ module.exports = function(suites, context, mocha) {
        *
        * @param {number} n
        */
-      retries: function(n) {
+      retries: function (n) {
         context.retries(n);
       }
     }
diff --git a/lib/interfaces/exports.js b/lib/interfaces/exports.js
--- a/lib/interfaces/exports.js
+++ b/lib/interfaces/exports.js
@@ -22,12 +22,12 @@ var Test = require('../test');
  *
  * @param {Suite} suite Root suite.
  */
-module.exports = function(suite) {
+module.exports = function (suite) {
   var suites = [suite];
 
   suite.on('require', visit);
 
-  function visit(obj, file) {
+  function visit (obj, file) {
     var suite;
     for (var key in obj) {
       if (typeof obj[key] === 'function') {
diff --git a/lib/interfaces/qunit.js b/lib/interfaces/qunit.js
--- a/lib/interfaces/qunit.js
+++ b/lib/interfaces/qunit.js
@@ -29,10 +29,10 @@ var Test = require('../test');
  *
  * @param {Suite} suite Root suite.
  */
-module.exports = function(suite) {
+module.exports = function (suite) {
   var suites = [suite];
 
-  suite.on('pre-require', function(context, file, mocha) {
+  suite.on('pre-require', function (context, file, mocha) {
     var common = require('./common')(suites, context, mocha);
 
     context.before = common.before;
@@ -44,7 +44,7 @@ module.exports = function(suite) {
      * Describe a "suite" with the given `title`.
      */
 
-    context.suite = function(title) {
+    context.suite = function (title) {
       if (suites.length > 1) {
         suites.shift();
       }
@@ -59,7 +59,7 @@ module.exports = function(suite) {
      * Exclusive Suite.
      */
 
-    context.suite.only = function(title) {
+    context.suite.only = function (title) {
       if (suites.length > 1) {
         suites.shift();
       }
@@ -76,7 +76,7 @@ module.exports = function(suite) {
      * acting as a thunk.
      */
 
-    context.test = function(title, fn) {
+    context.test = function (title, fn) {
       var test = new Test(title, fn);
       test.file = file;
       suites[0].addTest(test);
@@ -87,7 +87,7 @@ module.exports = function(suite) {
      * Exclusive test-case.
      */
 
-    context.test.only = function(title, fn) {
+    context.test.only = function (title, fn) {
       return common.test.only(mocha, context.test(title, fn));
     };
 
diff --git a/lib/interfaces/tdd.js b/lib/interfaces/tdd.js
--- a/lib/interfaces/tdd.js
+++ b/lib/interfaces/tdd.js
@@ -29,10 +29,10 @@ var Test = require('../test');
  *
  * @param {Suite} suite Root suite.
  */
-module.exports = function(suite) {
+module.exports = function (suite) {
   var suites = [suite];
 
-  suite.on('pre-require', function(context, file, mocha) {
+  suite.on('pre-require', function (context, file, mocha) {
     var common = require('./common')(suites, context, mocha);
 
     context.setup = common.beforeEach;
@@ -45,7 +45,7 @@ module.exports = function(suite) {
      * Describe a "suite" with the given `title` and callback `fn` containing
      * nested suites and/or tests.
      */
-    context.suite = function(title, fn) {
+    context.suite = function (title, fn) {
       return common.suite.create({
         title: title,
         file: file,
@@ -56,7 +56,7 @@ module.exports = function(suite) {
     /**
      * Pending suite.
      */
-    context.suite.skip = function(title, fn) {
+    context.suite.skip = function (title, fn) {
       return common.suite.skip({
         title: title,
         file: file,
@@ -67,7 +67,7 @@ module.exports = function(suite) {
     /**
      * Exclusive test-case.
      */
-    context.suite.only = function(title, fn) {
+    context.suite.only = function (title, fn) {
       return common.suite.only({
         title: title,
         file: file,
@@ -79,7 +79,7 @@ module.exports = function(suite) {
      * Describe a specification or test-case with the given `title` and
      * callback `fn` acting as a thunk.
      */
-    context.test = function(title, fn) {
+    context.test = function (title, fn) {
       var suite = suites[0];
       if (suite.isPending()) {
         fn = null;
@@ -94,7 +94,7 @@ module.exports = function(suite) {
      * Exclusive test-case.
      */
 
-    context.test.only = function(title, fn) {
+    context.test.only = function (title, fn) {
       return common.test.only(mocha, context.test(title, fn));
     };
 
diff --git a/lib/mocha.js b/lib/mocha.js
--- a/lib/mocha.js
+++ b/lib/mocha.js
@@ -49,7 +49,7 @@ exports.Test = require('./test');
  * @param {string} name
  * @return {string}
  */
-function image(name) {
+function image (name) {
   return path.join(__dirname, '../images', name + '.png');
 }
 
@@ -72,7 +72,7 @@ function image(name) {
  * @param {Object} options
  * @api public
  */
-function Mocha(options) {
+function Mocha (options) {
   options = options || {};
   this.files = [];
   this.options = options;
@@ -107,7 +107,7 @@ function Mocha(options) {
  * @api public
  * @param {boolean} [bail]
  */
-Mocha.prototype.bail = function(bail) {
+Mocha.prototype.bail = function (bail) {
   if (!arguments.length) {
     bail = true;
   }
@@ -121,7 +121,7 @@ Mocha.prototype.bail = function(bail) {
  * @api public
  * @param {string} file
  */
-Mocha.prototype.addFile = function(file) {
+Mocha.prototype.addFile = function (file) {
   this.files.push(file);
   return this;
 };
@@ -135,7 +135,7 @@ Mocha.prototype.addFile = function(file) {
  * @param {string|Function} reporter name or constructor
  * @param {Object} reporterOptions optional options
  */
-Mocha.prototype.reporter = function(reporter, reporterOptions) {
+Mocha.prototype.reporter = function (reporter, reporterOptions) {
   if (typeof reporter === 'function') {
     this._reporter = reporter;
   } else {
@@ -156,9 +156,9 @@ Mocha.prototype.reporter = function(reporter, reporterOptions) {
       }
     }
     if (!_reporter && reporter === 'teamcity') {
-      console.warn('The Teamcity reporter was moved to a package named '
-        + 'mocha-teamcity-reporter '
-        + '(https://npmjs.org/package/mocha-teamcity-reporter).');
+      console.warn('The Teamcity reporter was moved to a package named ' +
+        'mocha-teamcity-reporter ' +
+        '(https://npmjs.org/package/mocha-teamcity-reporter).');
     }
     if (!_reporter) {
       throw new Error('invalid reporter "' + reporter + '"');
@@ -175,7 +175,7 @@ Mocha.prototype.reporter = function(reporter, reporterOptions) {
  * @api public
  * @param {string} bdd
  */
-Mocha.prototype.ui = function(name) {
+Mocha.prototype.ui = function (name) {
   name = name || 'bdd';
   this._ui = exports.interfaces[name];
   if (!this._ui) {
@@ -187,7 +187,7 @@ Mocha.prototype.ui = function(name) {
   }
   this._ui = this._ui(this.suite);
 
-  this.suite.on('pre-require', function(context) {
+  this.suite.on('pre-require', function (context) {
     exports.afterEach = context.afterEach || context.teardown;
     exports.after = context.after || context.suiteTeardown;
     exports.beforeEach = context.beforeEach || context.setup;
@@ -211,10 +211,10 @@ Mocha.prototype.ui = function(name) {
  *
  * @api private
  */
-Mocha.prototype.loadFiles = function(fn) {
+Mocha.prototype.loadFiles = function (fn) {
   var self = this;
   var suite = this.suite;
-  this.files.forEach(function(file) {
+  this.files.forEach(function (file) {
     file = path.resolve(file);
     suite.emit('pre-require', global, file, self);
     suite.emit('require', require(file), file, self);
@@ -228,10 +228,10 @@ Mocha.prototype.loadFiles = function(fn) {
  *
  * @api private
  */
-Mocha.prototype._growl = function(runner, reporter) {
+Mocha.prototype._growl = function (runner, reporter) {
   var notify = require('growl');
 
-  runner.on('end', function() {
+  runner.on('end', function () {
     var stats = reporter.stats;
     if (stats.failures) {
       var msg = stats.failures + ' of ' + runner.total + ' tests failed';
@@ -253,7 +253,7 @@ Mocha.prototype._growl = function(runner, reporter) {
  * @param str
  * @returns {Mocha}
  */
-Mocha.prototype.fgrep = function(str) {
+Mocha.prototype.fgrep = function (str) {
   return this.grep(new RegExp(escapeRe(str)));
 };
 
@@ -266,7 +266,7 @@ Mocha.prototype.fgrep = function(str) {
  * @param {RegExp|string} re
  * @return {Mocha}
  */
-Mocha.prototype.grep = function(re) {
+Mocha.prototype.grep = function (re) {
   if (utils.isString(re)) {
     // extract args if it's regex-like, i.e: [string, pattern, flag]
     var arg = re.match(/^\/(.*)\/(g|i|)$|.*/);
@@ -282,7 +282,7 @@ Mocha.prototype.grep = function(re) {
  * @return {Mocha}
  * @api public
  */
-Mocha.prototype.invert = function() {
+Mocha.prototype.invert = function () {
   this.options.invert = true;
   return this;
 };
@@ -296,7 +296,7 @@ Mocha.prototype.invert = function() {
  * @param {boolean} ignore
  * @return {Mocha}
  */
-Mocha.prototype.ignoreLeaks = function(ignore) {
+Mocha.prototype.ignoreLeaks = function (ignore) {
   this.options.ignoreLeaks = Boolean(ignore);
   return this;
 };
@@ -307,7 +307,7 @@ Mocha.prototype.ignoreLeaks = function(ignore) {
  * @return {Mocha}
  * @api public
  */
-Mocha.prototype.checkLeaks = function() {
+Mocha.prototype.checkLeaks = function () {
   this.options.ignoreLeaks = false;
   return this;
 };
@@ -318,7 +318,7 @@ Mocha.prototype.checkLeaks = function() {
  * @return {Mocha}
  * @api public
  */
-Mocha.prototype.fullTrace = function() {
+Mocha.prototype.fullTrace = function () {
   this.options.fullStackTrace = true;
   return this;
 };
@@ -329,7 +329,7 @@ Mocha.prototype.fullTrace = function() {
  * @return {Mocha}
  * @api public
  */
-Mocha.prototype.growl = function() {
+Mocha.prototype.growl = function () {
   this.options.growl = true;
   return this;
 };
@@ -343,7 +343,7 @@ Mocha.prototype.growl = function() {
  * @param {Array|string} globals
  * @return {Mocha}
  */
-Mocha.prototype.globals = function(globals) {
+Mocha.prototype.globals = function (globals) {
   this.options.globals = (this.options.globals || []).concat(globals);
   return this;
 };
@@ -357,7 +357,7 @@ Mocha.prototype.globals = function(globals) {
  * @param {boolean} colors
  * @return {Mocha}
  */
-Mocha.prototype.useColors = function(colors) {
+Mocha.prototype.useColors = function (colors) {
   if (colors !== undefined) {
     this.options.useColors = colors;
   }
@@ -373,7 +373,7 @@ Mocha.prototype.useColors = function(colors) {
  * @param {boolean} inlineDiffs
  * @return {Mocha}
  */
-Mocha.prototype.useInlineDiffs = function(inlineDiffs) {
+Mocha.prototype.useInlineDiffs = function (inlineDiffs) {
   this.options.useInlineDiffs = inlineDiffs !== undefined && inlineDiffs;
   return this;
 };
@@ -387,7 +387,7 @@ Mocha.prototype.useInlineDiffs = function(inlineDiffs) {
  * @param {number} timeout
  * @return {Mocha}
  */
-Mocha.prototype.timeout = function(timeout) {
+Mocha.prototype.timeout = function (timeout) {
   this.suite.timeout(timeout);
   return this;
 };
@@ -399,7 +399,7 @@ Mocha.prototype.timeout = function(timeout) {
  * @return {Mocha}
  * @api public
  */
-Mocha.prototype.retries = function(n) {
+Mocha.prototype.retries = function (n) {
   this.suite.retries(n);
   return this;
 };
@@ -413,7 +413,7 @@ Mocha.prototype.retries = function(n) {
  * @param {number} slow
  * @return {Mocha}
  */
-Mocha.prototype.slow = function(slow) {
+Mocha.prototype.slow = function (slow) {
   this.suite.slow(slow);
   return this;
 };
@@ -427,7 +427,7 @@ Mocha.prototype.slow = function(slow) {
  * @param {boolean} enabled
  * @return {Mocha}
  */
-Mocha.prototype.enableTimeouts = function(enabled) {
+Mocha.prototype.enableTimeouts = function (enabled) {
   this.suite.enableTimeouts(arguments.length && enabled !== undefined ? enabled : true);
   return this;
 };
@@ -438,7 +438,7 @@ Mocha.prototype.enableTimeouts = function(enabled) {
  * @return {Mocha}
  * @api public
  */
-Mocha.prototype.asyncOnly = function() {
+Mocha.prototype.asyncOnly = function () {
   this.options.asyncOnly = true;
   return this;
 };
@@ -448,7 +448,7 @@ Mocha.prototype.asyncOnly = function() {
  *
  * @api public
  */
-Mocha.prototype.noHighlighting = function() {
+Mocha.prototype.noHighlighting = function () {
   this.options.noHighlighting = true;
   return this;
 };
@@ -459,7 +459,7 @@ Mocha.prototype.noHighlighting = function() {
  * @return {Mocha}
  * @api public
  */
-Mocha.prototype.allowUncaught = function() {
+Mocha.prototype.allowUncaught = function () {
   this.options.allowUncaught = true;
   return this;
 };
@@ -468,7 +468,7 @@ Mocha.prototype.allowUncaught = function() {
  * Delay root suite execution.
  * @returns {Mocha}
  */
-Mocha.prototype.delay = function delay() {
+Mocha.prototype.delay = function delay () {
   this.options.delay = true;
   return this;
 };
@@ -480,7 +480,7 @@ Mocha.prototype.delay = function delay() {
  * @param {Function} fn
  * @return {Runner}
  */
-Mocha.prototype.run = function(fn) {
+Mocha.prototype.run = function (fn) {
   if (this.files.length) {
     this.loadFiles();
   }
@@ -508,7 +508,7 @@ Mocha.prototype.run = function(fn) {
   }
   exports.reporters.Base.inlineDiffs = options.useInlineDiffs;
 
-  function done(failures) {
+  function done (failures) {
     if (reporter.done) {
       reporter.done(failures, fn);
     } else {
diff --git a/lib/ms.js b/lib/ms.js
--- a/lib/ms.js
+++ b/lib/ms.js
@@ -20,7 +20,7 @@ var y = d * 365.25;
  * @param {Object} options
  * @return {string|number}
  */
-module.exports = function(val, options) {
+module.exports = function (val, options) {
   options = options || {};
   if (typeof val === 'string') {
     return parse(val);
@@ -36,7 +36,7 @@ module.exports = function(val, options) {
  * @param {string} str
  * @return {number}
  */
-function parse(str) {
+function parse (str) {
   var match = (/^((?:\d+)?\.?\d+) *(ms|seconds?|s|minutes?|m|hours?|h|days?|d|years?|y)?$/i).exec(str);
   if (!match) {
     return;
@@ -78,7 +78,7 @@ function parse(str) {
  * @param {number} ms
  * @return {string}
  */
-function shortFormat(ms) {
+function shortFormat (ms) {
   if (ms >= d) {
     return Math.round(ms / d) + 'd';
   }
@@ -101,12 +101,12 @@ function shortFormat(ms) {
  * @param {number} ms
  * @return {string}
  */
-function longFormat(ms) {
-  return plural(ms, d, 'day')
-    || plural(ms, h, 'hour')
-    || plural(ms, m, 'minute')
-    || plural(ms, s, 'second')
-    || ms + ' ms';
+function longFormat (ms) {
+  return plural(ms, d, 'day') ||
+    plural(ms, h, 'hour') ||
+    plural(ms, m, 'minute') ||
+    plural(ms, s, 'second') ||
+    ms + ' ms';
 }
 
 /**
@@ -117,7 +117,7 @@ function longFormat(ms) {
  * @param {number} n
  * @param {string} name
  */
-function plural(ms, n, name) {
+function plural (ms, n, name) {
   if (ms < n) {
     return;
   }
diff --git a/lib/pending.js b/lib/pending.js
--- a/lib/pending.js
+++ b/lib/pending.js
@@ -10,6 +10,6 @@ module.exports = Pending;
  *
  * @param {string} message
  */
-function Pending(message) {
+function Pending (message) {
   this.message = message;
 }
diff --git a/lib/reporters/base.js b/lib/reporters/base.js
--- a/lib/reporters/base.js
+++ b/lib/reporters/base.js
@@ -101,7 +101,7 @@ if (process.platform === 'win32') {
  * @return {string}
  * @api private
  */
-var color = exports.color = function(type, str) {
+var color = exports.color = function (type, str) {
   if (!exports.useColors) {
     return String(str);
   }
@@ -127,23 +127,23 @@ if (isatty) {
  */
 
 exports.cursor = {
-  hide: function() {
+  hide: function () {
     isatty && process.stdout.write('\u001b[?25l');
   },
 
-  show: function() {
+  show: function () {
     isatty && process.stdout.write('\u001b[?25h');
   },
 
-  deleteLine: function() {
+  deleteLine: function () {
     isatty && process.stdout.write('\u001b[2K');
   },
 
-  beginningOfLine: function() {
+  beginningOfLine: function () {
     isatty && process.stdout.write('\u001b[0G');
   },
 
-  CR: function() {
+  CR: function () {
     if (isatty) {
       exports.cursor.deleteLine();
       exports.cursor.beginningOfLine();
@@ -160,13 +160,13 @@ exports.cursor = {
  * @api public
  */
 
-exports.list = function(failures) {
+exports.list = function (failures) {
   console.log();
-  failures.forEach(function(test, i) {
+  failures.forEach(function (test, i) {
     // format
-    var fmt = color('error title', '  %s) %s:\n')
-      + color('error message', '     %s')
-      + color('error stack', '\n%s\n');
+    var fmt = color('error title', '  %s) %s:\n') +
+      color('error message', '     %s') +
+      color('error stack', '\n%s\n');
 
     // msg
     var msg;
@@ -236,7 +236,7 @@ exports.list = function(failures) {
  * @api public
  */
 
-function Base(runner) {
+function Base (runner) {
   var stats = this.stats = { suites: 0, tests: 0, passes: 0, pending: 0, failures: 0 };
   var failures = this.failures = [];
 
@@ -247,21 +247,21 @@ function Base(runner) {
 
   runner.stats = stats;
 
-  runner.on('start', function() {
+  runner.on('start', function () {
     stats.start = new Date();
   });
 
-  runner.on('suite', function(suite) {
+  runner.on('suite', function (suite) {
     stats.suites = stats.suites || 0;
     suite.root || stats.suites++;
   });
 
-  runner.on('test end', function() {
+  runner.on('test end', function () {
     stats.tests = stats.tests || 0;
     stats.tests++;
   });
 
-  runner.on('pass', function(test) {
+  runner.on('pass', function (test) {
     stats.passes = stats.passes || 0;
 
     if (test.duration > test.slow()) {
@@ -275,19 +275,19 @@ function Base(runner) {
     stats.passes++;
   });
 
-  runner.on('fail', function(test, err) {
+  runner.on('fail', function (test, err) {
     stats.failures = stats.failures || 0;
     stats.failures++;
     test.err = err;
     failures.push(test);
   });
 
-  runner.on('end', function() {
+  runner.on('end', function () {
     stats.end = new Date();
     stats.duration = new Date() - stats.start;
   });
 
-  runner.on('pending', function() {
+  runner.on('pending', function () {
     stats.pending++;
   });
 }
@@ -298,16 +298,16 @@ function Base(runner) {
  *
  * @api public
  */
-Base.prototype.epilogue = function() {
+Base.prototype.epilogue = function () {
   var stats = this.stats;
   var fmt;
 
   console.log();
 
   // passes
-  fmt = color('bright pass', ' ')
-    + color('green', ' %d passing')
-    + color('light', ' (%s)');
+  fmt = color('bright pass', ' ') +
+    color('green', ' %d passing') +
+    color('light', ' (%s)');
 
   console.log(fmt,
     stats.passes || 0,
@@ -315,8 +315,8 @@ Base.prototype.epilogue = function() {
 
   // pending
   if (stats.pending) {
-    fmt = color('pending', ' ')
-      + color('pending', ' %d pending');
+    fmt = color('pending', ' ') +
+      color('pending', ' %d pending');
 
     console.log(fmt, stats.pending);
   }
@@ -342,7 +342,7 @@ Base.prototype.epilogue = function() {
  * @param {string} len
  * @return {string}
  */
-function pad(str, len) {
+function pad (str, len) {
   str = String(str);
   return Array(len - str.length + 1).join(' ') + str;
 }
@@ -355,26 +355,26 @@ function pad(str, len) {
  * @param {boolean} escape
  * @return {string} Diff
  */
-function inlineDiff(err, escape) {
+function inlineDiff (err, escape) {
   var msg = errorDiff(err, 'WordsWithSpace', escape);
 
   // linenos
   var lines = msg.split('\n');
   if (lines.length > 4) {
     var width = String(lines.length).length;
-    msg = lines.map(function(str, i) {
+    msg = lines.map(function (str, i) {
       return pad(++i, width) + ' |' + ' ' + str;
     }).join('\n');
   }
 
   // legend
-  msg = '\n'
-    + color('diff removed', 'actual')
-    + ' '
-    + color('diff added', 'expected')
-    + '\n\n'
-    + msg
-    + '\n';
+  msg = '\n' +
+    color('diff removed', 'actual') +
+    ' ' +
+    color('diff added', 'expected') +
+    '\n\n' +
+    msg +
+    '\n';
 
   // indent
   msg = msg.replace(/^/gm, '      ');
@@ -389,9 +389,9 @@ function inlineDiff(err, escape) {
  * @param {boolean} escape
  * @return {string} The diff.
  */
-function unifiedDiff(err, escape) {
+function unifiedDiff (err, escape) {
   var indent = '      ';
-  function cleanUp(line) {
+  function cleanUp (line) {
     if (escape) {
       line = escapeInvisibles(line);
     }
@@ -401,7 +401,7 @@ function unifiedDiff(err, escape) {
     if (line[0] === '-') {
       return indent + colorLines('diff removed', line);
     }
-    if (line.match(/\@\@/)) {
+    if (line.match(/@@/)) {
       return null;
     }
     if (line.match(/\\ No newline/)) {
@@ -409,16 +409,16 @@ function unifiedDiff(err, escape) {
     }
     return indent + line;
   }
-  function notBlank(line) {
+  function notBlank (line) {
     return typeof line !== 'undefined' && line !== null;
   }
   var msg = diff.createPatch('string', err.actual, err.expected);
   var lines = msg.split('\n').splice(4);
-  return '\n      '
-    + colorLines('diff added', '+ expected') + ' '
-    + colorLines('diff removed', '- actual')
-    + '\n\n'
-    + lines.map(cleanUp).filter(notBlank).join('\n');
+  return '\n      ' +
+    colorLines('diff added', '+ expected') + ' ' +
+    colorLines('diff removed', '- actual') +
+    '\n\n' +
+    lines.map(cleanUp).filter(notBlank).join('\n');
 }
 
 /**
@@ -430,10 +430,10 @@ function unifiedDiff(err, escape) {
  * @param {boolean} escape
  * @return {string}
  */
-function errorDiff(err, type, escape) {
+function errorDiff (err, type, escape) {
   var actual = escape ? escapeInvisibles(err.actual) : err.actual;
   var expected = escape ? escapeInvisibles(err.expected) : err.expected;
-  return diff['diff' + type](actual, expected).map(function(str) {
+  return diff['diff' + type](actual, expected).map(function (str) {
     if (str.added) {
       return colorLines('diff added', str.value);
     }
@@ -451,7 +451,7 @@ function errorDiff(err, type, escape) {
  * @param {string} line
  * @return {string}
  */
-function escapeInvisibles(line) {
+function escapeInvisibles (line) {
   return line.replace(/\t/g, '<tab>')
     .replace(/\r/g, '<CR>')
     .replace(/\n/g, '<LF>\n');
@@ -465,8 +465,8 @@ function escapeInvisibles(line) {
  * @param {string} str
  * @return {string}
  */
-function colorLines(name, str) {
-  return str.split('\n').map(function(str) {
+function colorLines (name, str) {
+  return str.split('\n').map(function (str) {
     return color(name, str);
   }).join('\n');
 }
@@ -484,6 +484,6 @@ var objToString = Object.prototype.toString;
  * @param {Object} b
  * @return {boolean}
  */
-function sameType(a, b) {
+function sameType (a, b) {
   return objToString.call(a) === objToString.call(b);
 }
diff --git a/lib/reporters/doc.js b/lib/reporters/doc.js
--- a/lib/reporters/doc.js
+++ b/lib/reporters/doc.js
@@ -17,16 +17,16 @@ exports = module.exports = Doc;
  * @param {Runner} runner
  * @api public
  */
-function Doc(runner) {
+function Doc (runner) {
   Base.call(this, runner);
 
   var indents = 2;
 
-  function indent() {
+  function indent () {
     return Array(indents).join('  ');
   }
 
-  runner.on('suite', function(suite) {
+  runner.on('suite', function (suite) {
     if (suite.root) {
       return;
     }
@@ -37,7 +37,7 @@ function Doc(runner) {
     console.log('%s<dl>', indent());
   });
 
-  runner.on('suite end', function(suite) {
+  runner.on('suite end', function (suite) {
     if (suite.root) {
       return;
     }
@@ -47,13 +47,13 @@ function Doc(runner) {
     --indents;
   });
 
-  runner.on('pass', function(test) {
+  runner.on('pass', function (test) {
     console.log('%s  <dt>%s</dt>', indent(), utils.escape(test.title));
     var code = utils.escape(utils.clean(test.body));
     console.log('%s  <dd><pre><code>%s</code></pre></dd>', indent(), code);
   });
 
-  runner.on('fail', function(test, err) {
+  runner.on('fail', function (test, err) {
     console.log('%s  <dt class="error">%s</dt>', indent(), utils.escape(test.title));
     var code = utils.escape(utils.clean(test.body));
     console.log('%s  <dd class="error"><pre><code>%s</code></pre></dd>', indent(), code);
diff --git a/lib/reporters/dot.js b/lib/reporters/dot.js
--- a/lib/reporters/dot.js
+++ b/lib/reporters/dot.js
@@ -18,25 +18,25 @@ exports = module.exports = Dot;
  * @api public
  * @param {Runner} runner
  */
-function Dot(runner) {
+function Dot (runner) {
   Base.call(this, runner);
 
   var self = this;
-  var width = Base.window.width * .75 | 0;
+  var width = Base.window.width * 0.75 | 0;
   var n = -1;
 
-  runner.on('start', function() {
+  runner.on('start', function () {
     process.stdout.write('\n');
   });
 
-  runner.on('pending', function() {
+  runner.on('pending', function () {
     if (++n % width === 0) {
       process.stdout.write('\n  ');
     }
     process.stdout.write(color('pending', Base.symbols.comma));
   });
 
-  runner.on('pass', function(test) {
+  runner.on('pass', function (test) {
     if (++n % width === 0) {
       process.stdout.write('\n  ');
     }
@@ -47,14 +47,14 @@ function Dot(runner) {
     }
   });
 
-  runner.on('fail', function() {
+  runner.on('fail', function () {
     if (++n % width === 0) {
       process.stdout.write('\n  ');
     }
     process.stdout.write(color('fail', Base.symbols.bang));
   });
 
-  runner.on('end', function() {
+  runner.on('end', function () {
     console.log();
     self.epilogue();
   });
diff --git a/lib/reporters/html.js b/lib/reporters/html.js
--- a/lib/reporters/html.js
+++ b/lib/reporters/html.js
@@ -32,12 +32,12 @@ exports = module.exports = HTML;
  * Stats template.
  */
 
-var statsTemplate = '<ul id="mocha-stats">'
-  + '<li class="progress"><canvas width="40" height="40"></canvas></li>'
-  + '<li class="passes"><a href="javascript:void(0);">passes:</a> <em>0</em></li>'
-  + '<li class="failures"><a href="javascript:void(0);">failures:</a> <em>0</em></li>'
-  + '<li class="duration">duration: <em>0</em>s</li>'
-  + '</ul>';
+var statsTemplate = '<ul id="mocha-stats">' +
+  '<li class="progress"><canvas width="40" height="40"></canvas></li>' +
+  '<li class="passes"><a href="javascript:void(0);">passes:</a> <em>0</em></li>' +
+  '<li class="failures"><a href="javascript:void(0);">failures:</a> <em>0</em></li>' +
+  '<li class="duration">duration: <em>0</em>s</li>' +
+  '</ul>';
 
 /**
  * Initialize a new `HTML` reporter.
@@ -45,7 +45,7 @@ var statsTemplate = '<ul id="mocha-stats">'
  * @api public
  * @param {Runner} runner
  */
-function HTML(runner) {
+function HTML (runner) {
   Base.call(this, runner);
 
   var self = this;
@@ -80,7 +80,7 @@ function HTML(runner) {
   }
 
   // pass toggle
-  on(passesLink, 'click', function(evt) {
+  on(passesLink, 'click', function (evt) {
     evt.preventDefault();
     unhide();
     var name = (/pass/).test(report.className) ? '' : ' pass';
@@ -91,7 +91,7 @@ function HTML(runner) {
   });
 
   // failure toggle
-  on(failuresLink, 'click', function(evt) {
+  on(failuresLink, 'click', function (evt) {
     evt.preventDefault();
     unhide();
     var name = (/fail/).test(report.className) ? '' : ' fail';
@@ -108,7 +108,7 @@ function HTML(runner) {
     progress.size(40);
   }
 
-  runner.on('suite', function(suite) {
+  runner.on('suite', function (suite) {
     if (suite.root) {
       return;
     }
@@ -123,7 +123,7 @@ function HTML(runner) {
     el.appendChild(stack[0]);
   });
 
-  runner.on('suite end', function(suite) {
+  runner.on('suite end', function (suite) {
     if (suite.root) {
       updateStats();
       return;
@@ -131,17 +131,17 @@ function HTML(runner) {
     stack.shift();
   });
 
-  runner.on('pass', function(test) {
+  runner.on('pass', function (test) {
     var url = self.testURL(test);
-    var markup = '<li class="test pass %e"><h2>%e<span class="duration">%ems</span> '
-      + '<a href="%s" class="replay">‣</a></h2></li>';
+    var markup = '<li class="test pass %e"><h2>%e<span class="duration">%ems</span> ' +
+      '<a href="%s" class="replay">‣</a></h2></li>';
     var el = fragment(markup, test.speed, test.title, test.duration, url);
     self.addCodeToggle(el, test.body);
     appendToStack(el);
     updateStats();
   });
 
-  runner.on('fail', function(test) {
+  runner.on('fail', function (test) {
     var el = fragment('<li class="test fail"><h2>%e <a href="%e" class="replay">‣</a></h2></li>',
       test.title, self.testURL(test));
     var stackString; // Note: Includes leading newline
@@ -181,20 +181,20 @@ function HTML(runner) {
     updateStats();
   });
 
-  runner.on('pending', function(test) {
+  runner.on('pending', function (test) {
     var el = fragment('<li class="test pass pending"><h2>%e</h2></li>', test.title);
     appendToStack(el);
     updateStats();
   });
 
-  function appendToStack(el) {
+  function appendToStack (el) {
     // Don't call .appendChild if #mocha-report was already .shift()'ed off the stack.
     if (stack[0]) {
       stack[0].appendChild(el);
     }
   }
 
-  function updateStats() {
+  function updateStats () {
     // TODO: add to stats
     var percent = stats.tests / runner.total * 100 | 0;
     if (progress) {
@@ -215,7 +215,7 @@ function HTML(runner) {
  * @param {string} s
  * @return {string} A new URL.
  */
-function makeUrl(s) {
+function makeUrl (s) {
   var search = window.location.search;
 
   // Remove previous grep query parameter if present
@@ -231,7 +231,7 @@ function makeUrl(s) {
  *
  * @param {Object} [suite]
  */
-HTML.prototype.suiteURL = function(suite) {
+HTML.prototype.suiteURL = function (suite) {
   return makeUrl(suite.fullTitle());
 };
 
@@ -240,7 +240,7 @@ HTML.prototype.suiteURL = function(suite) {
  *
  * @param {Object} [test]
  */
-HTML.prototype.testURL = function(test) {
+HTML.prototype.testURL = function (test) {
   return makeUrl(test.fullTitle());
 };
 
@@ -250,10 +250,10 @@ HTML.prototype.testURL = function(test) {
  * @param {HTMLLIElement} el
  * @param {string} contents
  */
-HTML.prototype.addCodeToggle = function(el, contents) {
+HTML.prototype.addCodeToggle = function (el, contents) {
   var h2 = el.getElementsByTagName('h2')[0];
 
-  on(h2, 'click', function() {
+  on(h2, 'click', function () {
     pre.style.display = pre.style.display === 'none' ? 'block' : 'none';
   });
 
@@ -267,7 +267,7 @@ HTML.prototype.addCodeToggle = function(el, contents) {
  *
  * @param {string} msg
  */
-function error(msg) {
+function error (msg) {
   document.body.appendChild(fragment('<div id="mocha-error">%s</div>', msg));
 }
 
@@ -276,12 +276,12 @@ function error(msg) {
  *
  * @param {string} html
  */
-function fragment(html) {
+function fragment (html) {
   var args = arguments;
   var div = document.createElement('div');
   var i = 1;
 
-  div.innerHTML = html.replace(/%([se])/g, function(_, type) {
+  div.innerHTML = html.replace(/%([se])/g, function (_, type) {
     switch (type) {
       case 's': return String(args[i++]);
       case 'e': return escape(args[i++]);
@@ -298,7 +298,7 @@ function fragment(html) {
  *
  * @param {text} classname
  */
-function hideSuitesWithout(classname) {
+function hideSuitesWithout (classname) {
   var suites = document.getElementsByClassName('suite');
   for (var i = 0; i < suites.length; i++) {
     var els = suites[i].getElementsByClassName(classname);
@@ -311,7 +311,7 @@ function hideSuitesWithout(classname) {
 /**
  * Unhide .hidden suites.
  */
-function unhide() {
+function unhide () {
   var els = document.getElementsByClassName('suite hidden');
   for (var i = 0; i < els.length; ++i) {
     els[i].className = els[i].className.replace('suite hidden', 'suite');
@@ -324,7 +324,7 @@ function unhide() {
  * @param {HTMLElement} el
  * @param {string} contents
  */
-function text(el, contents) {
+function text (el, contents) {
   if (el.textContent) {
     el.textContent = contents;
   } else {
@@ -335,7 +335,7 @@ function text(el, contents) {
 /**
  * Listen on `event` with callback `fn`.
  */
-function on(el, event, fn) {
+function on (el, event, fn) {
   if (el.addEventListener) {
     el.addEventListener(event, fn, false);
   } else {
diff --git a/lib/reporters/json-stream.js b/lib/reporters/json-stream.js
--- a/lib/reporters/json-stream.js
+++ b/lib/reporters/json-stream.js
@@ -17,28 +17,28 @@ exports = module.exports = List;
  * @api public
  * @param {Runner} runner
  */
-function List(runner) {
+function List (runner) {
   Base.call(this, runner);
 
   var self = this;
   var total = runner.total;
 
-  runner.on('start', function() {
+  runner.on('start', function () {
     console.log(JSON.stringify(['start', { total: total }]));
   });
 
-  runner.on('pass', function(test) {
+  runner.on('pass', function (test) {
     console.log(JSON.stringify(['pass', clean(test)]));
   });
 
-  runner.on('fail', function(test, err) {
+  runner.on('fail', function (test, err) {
     test = clean(test);
     test.err = err.message;
     test.stack = err.stack || null;
     console.log(JSON.stringify(['fail', test]));
   });
 
-  runner.on('end', function() {
+  runner.on('end', function () {
     process.stdout.write(JSON.stringify(['end', self.stats]));
   });
 }
@@ -51,7 +51,7 @@ function List(runner) {
  * @param {Object} test
  * @return {Object}
  */
-function clean(test) {
+function clean (test) {
   return {
     title: test.title,
     fullTitle: test.fullTitle(),
diff --git a/lib/reporters/json.js b/lib/reporters/json.js
--- a/lib/reporters/json.js
+++ b/lib/reporters/json.js
@@ -16,7 +16,7 @@ exports = module.exports = JSONReporter;
  * @api public
  * @param {Runner} runner
  */
-function JSONReporter(runner) {
+function JSONReporter (runner) {
   Base.call(this, runner);
 
   var self = this;
@@ -25,23 +25,23 @@ function JSONReporter(runner) {
   var failures = [];
   var passes = [];
 
-  runner.on('test end', function(test) {
+  runner.on('test end', function (test) {
     tests.push(test);
   });
 
-  runner.on('pass', function(test) {
+  runner.on('pass', function (test) {
     passes.push(test);
   });
 
-  runner.on('fail', function(test) {
+  runner.on('fail', function (test) {
     failures.push(test);
   });
 
-  runner.on('pending', function(test) {
+  runner.on('pending', function (test) {
     pending.push(test);
   });
 
-  runner.on('end', function() {
+  runner.on('end', function () {
     var obj = {
       stats: self.stats,
       tests: tests.map(clean),
@@ -64,7 +64,7 @@ function JSONReporter(runner) {
  * @param {Object} test
  * @return {Object}
  */
-function clean(test) {
+function clean (test) {
   return {
     title: test.title,
     fullTitle: test.fullTitle(),
@@ -81,9 +81,9 @@ function clean(test) {
  * @param {Error} err
  * @return {Object}
  */
-function errorJSON(err) {
+function errorJSON (err) {
   var res = {};
-  Object.getOwnPropertyNames(err).forEach(function(key) {
+  Object.getOwnPropertyNames(err).forEach(function (key) {
     res[key] = err[key];
   }, err);
   return res;
diff --git a/lib/reporters/landing.js b/lib/reporters/landing.js
--- a/lib/reporters/landing.js
+++ b/lib/reporters/landing.js
@@ -37,28 +37,28 @@ Base.colors.runway = 90;
  * @api public
  * @param {Runner} runner
  */
-function Landing(runner) {
+function Landing (runner) {
   Base.call(this, runner);
 
   var self = this;
-  var width = Base.window.width * .75 | 0;
+  var width = Base.window.width * 0.75 | 0;
   var total = runner.total;
   var stream = process.stdout;
   var plane = color('plane', '✈');
   var crashed = -1;
   var n = 0;
 
-  function runway() {
+  function runway () {
     var buf = Array(width).join('-');
     return '  ' + color('runway', buf);
   }
 
-  runner.on('start', function() {
+  runner.on('start', function () {
     stream.write('\n\n\n  ');
     cursor.hide();
   });
 
-  runner.on('test end', function(test) {
+  runner.on('test end', function (test) {
     // check if the plane crashed
     var col = crashed === -1 ? width * ++n / total | 0 : crashed;
 
@@ -79,7 +79,7 @@ function Landing(runner) {
     stream.write('\u001b[0m');
   });
 
-  runner.on('end', function() {
+  runner.on('end', function () {
     cursor.show();
     console.log();
     self.epilogue();
diff --git a/lib/reporters/list.js b/lib/reporters/list.js
--- a/lib/reporters/list.js
+++ b/lib/reporters/list.js
@@ -19,35 +19,35 @@ exports = module.exports = List;
  * @api public
  * @param {Runner} runner
  */
-function List(runner) {
+function List (runner) {
   Base.call(this, runner);
 
   var self = this;
   var n = 0;
 
-  runner.on('start', function() {
+  runner.on('start', function () {
     console.log();
   });
 
-  runner.on('test', function(test) {
+  runner.on('test', function (test) {
     process.stdout.write(color('pass', '    ' + test.fullTitle() + ': '));
   });
 
-  runner.on('pending', function(test) {
-    var fmt = color('checkmark', '  -')
-      + color('pending', ' %s');
+  runner.on('pending', function (test) {
+    var fmt = color('checkmark', '  -') +
+      color('pending', ' %s');
     console.log(fmt, test.fullTitle());
   });
 
-  runner.on('pass', function(test) {
-    var fmt = color('checkmark', '  ' + Base.symbols.dot)
-      + color('pass', ' %s: ')
-      + color(test.speed, '%dms');
+  runner.on('pass', function (test) {
+    var fmt = color('checkmark', '  ' + Base.symbols.dot) +
+      color('pass', ' %s: ') +
+      color(test.speed, '%dms');
     cursor.CR();
     console.log(fmt, test.fullTitle(), test.duration);
   });
 
-  runner.on('fail', function(test) {
+  runner.on('fail', function (test) {
     cursor.CR();
     console.log(color('fail', '  %d) %s'), ++n, test.fullTitle());
   });
diff --git a/lib/reporters/markdown.js b/lib/reporters/markdown.js
--- a/lib/reporters/markdown.js
+++ b/lib/reporters/markdown.js
@@ -23,29 +23,29 @@ exports = module.exports = Markdown;
  * @api public
  * @param {Runner} runner
  */
-function Markdown(runner) {
+function Markdown (runner) {
   Base.call(this, runner);
 
   var level = 0;
   var buf = '';
 
-  function title(str) {
+  function title (str) {
     return Array(level).join('#') + ' ' + str;
   }
 
-  function mapTOC(suite, obj) {
+  function mapTOC (suite, obj) {
     var ret = obj;
     var key = SUITE_PREFIX + suite.title;
 
     obj = obj[key] = obj[key] || { suite: suite };
-    suite.suites.forEach(function(suite) {
+    suite.suites.forEach(function (suite) {
       mapTOC(suite, obj);
     });
 
     return ret;
   }
 
-  function stringifyTOC(obj, level) {
+  function stringifyTOC (obj, level) {
     ++level;
     var buf = '';
     var link;
@@ -63,25 +63,25 @@ function Markdown(runner) {
     return buf;
   }
 
-  function generateTOC(suite) {
+  function generateTOC (suite) {
     var obj = mapTOC(suite, {});
     return stringifyTOC(obj, 0);
   }
 
   generateTOC(runner.suite);
 
-  runner.on('suite', function(suite) {
+  runner.on('suite', function (suite) {
     ++level;
     var slug = utils.slug(suite.fullTitle());
     buf += '<a name="' + slug + '"></a>' + '\n';
     buf += title(suite.title) + '\n';
   });
 
-  runner.on('suite end', function() {
+  runner.on('suite end', function () {
     --level;
   });
 
-  runner.on('pass', function(test) {
+  runner.on('pass', function (test) {
     var code = utils.clean(test.body);
     buf += test.title + '.\n';
     buf += '\n```js\n';
@@ -89,7 +89,7 @@ function Markdown(runner) {
     buf += '```\n\n';
   });
 
-  runner.on('end', function() {
+  runner.on('end', function () {
     process.stdout.write('# TOC\n');
     process.stdout.write(generateTOC(runner.suite));
     process.stdout.write(buf);
diff --git a/lib/reporters/min.js b/lib/reporters/min.js
--- a/lib/reporters/min.js
+++ b/lib/reporters/min.js
@@ -17,10 +17,10 @@ exports = module.exports = Min;
  * @api public
  * @param {Runner} runner
  */
-function Min(runner) {
+function Min (runner) {
   Base.call(this, runner);
 
-  runner.on('start', function() {
+  runner.on('start', function () {
     // clear screen
     process.stdout.write('\u001b[2J');
     // set cursor position
diff --git a/lib/reporters/nyan.js b/lib/reporters/nyan.js
--- a/lib/reporters/nyan.js
+++ b/lib/reporters/nyan.js
@@ -18,11 +18,11 @@ exports = module.exports = NyanCat;
  * @api public
  */
 
-function NyanCat(runner) {
+function NyanCat (runner) {
   Base.call(this, runner);
 
   var self = this;
-  var width = Base.window.width * .75 | 0;
+  var width = Base.window.width * 0.75 | 0;
   var nyanCatWidth = this.nyanCatWidth = 11;
 
   this.colorIndex = 0;
@@ -33,24 +33,24 @@ function NyanCat(runner) {
   this.trajectories = [[], [], [], []];
   this.trajectoryWidthMax = (width - nyanCatWidth);
 
-  runner.on('start', function() {
+  runner.on('start', function () {
     Base.cursor.hide();
     self.draw();
   });
 
-  runner.on('pending', function() {
+  runner.on('pending', function () {
     self.draw();
   });
 
-  runner.on('pass', function() {
+  runner.on('pass', function () {
     self.draw();
   });
 
-  runner.on('fail', function() {
+  runner.on('fail', function () {
     self.draw();
   });
 
-  runner.on('end', function() {
+  runner.on('end', function () {
     Base.cursor.show();
     for (var i = 0; i < self.numberOfLines; i++) {
       write('\n');
@@ -70,7 +70,7 @@ inherits(NyanCat, Base);
  * @api private
  */
 
-NyanCat.prototype.draw = function() {
+NyanCat.prototype.draw = function () {
   this.appendRainbow();
   this.drawScoreboard();
   this.drawRainbow();
@@ -85,10 +85,10 @@ NyanCat.prototype.draw = function() {
  * @api private
  */
 
-NyanCat.prototype.drawScoreboard = function() {
+NyanCat.prototype.drawScoreboard = function () {
   var stats = this.stats;
 
-  function draw(type, n) {
+  function draw (type, n) {
     write(' ');
     write(Base.color(type, n));
     write('\n');
@@ -108,7 +108,7 @@ NyanCat.prototype.drawScoreboard = function() {
  * @api private
  */
 
-NyanCat.prototype.appendRainbow = function() {
+NyanCat.prototype.appendRainbow = function () {
   var segment = this.tick ? '_' : '-';
   var rainbowified = this.rainbowify(segment);
 
@@ -127,10 +127,10 @@ NyanCat.prototype.appendRainbow = function() {
  * @api private
  */
 
-NyanCat.prototype.drawRainbow = function() {
+NyanCat.prototype.drawRainbow = function () {
   var self = this;
 
-  this.trajectories.forEach(function(line) {
+  this.trajectories.forEach(function (line) {
     write('\u001b[' + self.scoreboardWidth + 'C');
     write(line.join(''));
     write('\n');
@@ -144,7 +144,7 @@ NyanCat.prototype.drawRainbow = function() {
  *
  * @api private
  */
-NyanCat.prototype.drawNyanCat = function() {
+NyanCat.prototype.drawNyanCat = function () {
   var self = this;
   var startWidth = this.scoreboardWidth + this.trajectories[0].length;
   var dist = '\u001b[' + startWidth + 'C';
@@ -180,7 +180,7 @@ NyanCat.prototype.drawNyanCat = function() {
  * @return {string}
  */
 
-NyanCat.prototype.face = function() {
+NyanCat.prototype.face = function () {
   var stats = this.stats;
   if (stats.failures) {
     return '( x .x)';
@@ -199,7 +199,7 @@ NyanCat.prototype.face = function() {
  * @param {number} n
  */
 
-NyanCat.prototype.cursorUp = function(n) {
+NyanCat.prototype.cursorUp = function (n) {
   write('\u001b[' + n + 'A');
 };
 
@@ -210,7 +210,7 @@ NyanCat.prototype.cursorUp = function(n) {
  * @param {number} n
  */
 
-NyanCat.prototype.cursorDown = function(n) {
+NyanCat.prototype.cursorDown = function (n) {
   write('\u001b[' + n + 'B');
 };
 
@@ -220,7 +220,7 @@ NyanCat.prototype.cursorDown = function(n) {
  * @api private
  * @return {Array}
  */
-NyanCat.prototype.generateColors = function() {
+NyanCat.prototype.generateColors = function () {
   var colors = [];
 
   for (var i = 0; i < (6 * 7); i++) {
@@ -242,7 +242,7 @@ NyanCat.prototype.generateColors = function() {
  * @param {string} str
  * @return {string}
  */
-NyanCat.prototype.rainbowify = function(str) {
+NyanCat.prototype.rainbowify = function (str) {
   if (!Base.useColors) {
     return str;
   }
@@ -256,6 +256,6 @@ NyanCat.prototype.rainbowify = function(str) {
  *
  * @param {string} string A message to write to stdout.
  */
-function write(string) {
+function write (string) {
   process.stdout.write(string);
 }
diff --git a/lib/reporters/progress.js b/lib/reporters/progress.js
--- a/lib/reporters/progress.js
+++ b/lib/reporters/progress.js
@@ -26,11 +26,11 @@ Base.colors.progress = 90;
  * @param {Runner} runner
  * @param {Object} options
  */
-function Progress(runner, options) {
+function Progress (runner, options) {
   Base.call(this, runner);
 
   var self = this;
-  var width = Base.window.width * .50 | 0;
+  var width = Base.window.width * 0.50 | 0;
   var total = runner.total;
   var complete = 0;
   var lastN = -1;
@@ -44,13 +44,13 @@ function Progress(runner, options) {
   options.verbose = false;
 
   // tests started
-  runner.on('start', function() {
+  runner.on('start', function () {
     console.log();
     cursor.hide();
   });
 
   // tests complete
-  runner.on('test end', function() {
+  runner.on('test end', function () {
     complete++;
 
     var percent = complete / total;
@@ -76,7 +76,7 @@ function Progress(runner, options) {
 
   // tests are complete, output some stats
   // and the failures if any
-  runner.on('end', function() {
+  runner.on('end', function () {
     cursor.show();
     console.log();
     self.epilogue();
diff --git a/lib/reporters/spec.js b/lib/reporters/spec.js
--- a/lib/reporters/spec.js
+++ b/lib/reporters/spec.js
@@ -18,55 +18,55 @@ exports = module.exports = Spec;
  * @api public
  * @param {Runner} runner
  */
-function Spec(runner) {
+function Spec (runner) {
   Base.call(this, runner);
 
   var self = this;
   var indents = 0;
   var n = 0;
 
-  function indent() {
+  function indent () {
     return Array(indents).join('  ');
   }
 
-  runner.on('start', function() {
+  runner.on('start', function () {
     console.log();
   });
 
-  runner.on('suite', function(suite) {
+  runner.on('suite', function (suite) {
     ++indents;
     console.log(color('suite', '%s%s'), indent(), suite.title);
   });
 
-  runner.on('suite end', function() {
+  runner.on('suite end', function () {
     --indents;
     if (indents === 1) {
       console.log();
     }
   });
 
-  runner.on('pending', function(test) {
+  runner.on('pending', function (test) {
     var fmt = indent() + color('pending', '  - %s');
     console.log(fmt, test.title);
   });
 
-  runner.on('pass', function(test) {
+  runner.on('pass', function (test) {
     var fmt;
     if (test.speed === 'fast') {
-      fmt = indent()
-        + color('checkmark', '  ' + Base.symbols.ok)
-        + color('pass', ' %s');
+      fmt = indent() +
+        color('checkmark', '  ' + Base.symbols.ok) +
+        color('pass', ' %s');
       console.log(fmt, test.title);
     } else {
-      fmt = indent()
-        + color('checkmark', '  ' + Base.symbols.ok)
-        + color('pass', ' %s')
-        + color(test.speed, ' (%dms)');
+      fmt = indent() +
+        color('checkmark', '  ' + Base.symbols.ok) +
+        color('pass', ' %s') +
+        color(test.speed, ' (%dms)');
       console.log(fmt, test.title, test.duration);
     }
   });
 
-  runner.on('fail', function(test) {
+  runner.on('fail', function (test) {
     console.log(indent() + color('fail', '  %d) %s'), ++n, test.title);
   });
 
diff --git a/lib/reporters/tap.js b/lib/reporters/tap.js
--- a/lib/reporters/tap.js
+++ b/lib/reporters/tap.js
@@ -16,32 +16,32 @@ exports = module.exports = TAP;
  * @api public
  * @param {Runner} runner
  */
-function TAP(runner) {
+function TAP (runner) {
   Base.call(this, runner);
 
   var n = 1;
   var passes = 0;
   var failures = 0;
 
-  runner.on('start', function() {
+  runner.on('start', function () {
     var total = runner.grepTotal(runner.suite);
     console.log('%d..%d', 1, total);
   });
 
-  runner.on('test end', function() {
+  runner.on('test end', function () {
     ++n;
   });
 
-  runner.on('pending', function(test) {
+  runner.on('pending', function (test) {
     console.log('ok %d %s # SKIP -', n, title(test));
   });
 
-  runner.on('pass', function(test) {
+  runner.on('pass', function (test) {
     passes++;
     console.log('ok %d %s', n, title(test));
   });
 
-  runner.on('fail', function(test, err) {
+  runner.on('fail', function (test, err) {
     failures++;
     console.log('not ok %d %s', n, title(test));
     if (err.stack) {
@@ -49,7 +49,7 @@ function TAP(runner) {
     }
   });
 
-  runner.on('end', function() {
+  runner.on('end', function () {
     console.log('# tests ' + (passes + failures));
     console.log('# pass ' + passes);
     console.log('# fail ' + failures);
@@ -63,6 +63,6 @@ function TAP(runner) {
  * @param {Object} test
  * @return {String}
  */
-function title(test) {
+function title (test) {
   return test.fullTitle().replace(/#/g, '');
 }
diff --git a/lib/reporters/xunit.js b/lib/reporters/xunit.js
--- a/lib/reporters/xunit.js
+++ b/lib/reporters/xunit.js
@@ -34,7 +34,7 @@ exports = module.exports = XUnit;
  * @api public
  * @param {Runner} runner
  */
-function XUnit(runner, options) {
+function XUnit (runner, options) {
   Base.call(this, runner);
 
   var stats = this.stats;
@@ -49,19 +49,19 @@ function XUnit(runner, options) {
     self.fileStream = fs.createWriteStream(options.reporterOptions.output);
   }
 
-  runner.on('pending', function(test) {
+  runner.on('pending', function (test) {
     tests.push(test);
   });
 
-  runner.on('pass', function(test) {
+  runner.on('pass', function (test) {
     tests.push(test);
   });
 
-  runner.on('fail', function(test) {
+  runner.on('fail', function (test) {
     tests.push(test);
   });
 
-  runner.on('end', function() {
+  runner.on('end', function () {
     self.write(tag('testsuite', {
       name: 'Mocha Tests',
       tests: stats.tests,
@@ -72,7 +72,7 @@ function XUnit(runner, options) {
       time: (stats.duration / 1000) || 0
     }, false));
 
-    tests.forEach(function(t) {
+    tests.forEach(function (t) {
       self.test(t);
     });
 
@@ -91,9 +91,9 @@ inherits(XUnit, Base);
  * @param failures
  * @param {Function} fn
  */
-XUnit.prototype.done = function(failures, fn) {
+XUnit.prototype.done = function (failures, fn) {
   if (this.fileStream) {
-    this.fileStream.end(function() {
+    this.fileStream.end(function () {
       fn(failures);
     });
   } else {
@@ -106,7 +106,7 @@ XUnit.prototype.done = function(failures, fn) {
  *
  * @param {string} line
  */
-XUnit.prototype.write = function(line) {
+XUnit.prototype.write = function (line) {
   if (this.fileStream) {
     this.fileStream.write(line + '\n');
   } else if (typeof process === 'object' && process.stdout) {
@@ -121,7 +121,7 @@ XUnit.prototype.write = function(line) {
  *
  * @param {Test} test
  */
-XUnit.prototype.test = function(test) {
+XUnit.prototype.test = function (test) {
   var attrs = {
     classname: test.parent.fullTitle(),
     name: test.title,
@@ -147,7 +147,7 @@ XUnit.prototype.test = function(test) {
  * @param content
  * @return {string}
  */
-function tag(name, attrs, close, content) {
+function tag (name, attrs, close, content) {
   var end = close ? '/>' : '>';
   var pairs = [];
   var tag;
diff --git a/lib/runnable.js b/lib/runnable.js
--- a/lib/runnable.js
+++ b/lib/runnable.js
@@ -43,7 +43,7 @@ module.exports = Runnable;
  * @param {string} title
  * @param {Function} fn
  */
-function Runnable(title, fn) {
+function Runnable (title, fn) {
   this.title = title;
   this.fn = fn;
   this.body = (fn || '').toString();
@@ -73,7 +73,7 @@ Runnable.prototype = create(EventEmitter.prototype, {
  * @param {number|string} ms
  * @return {Runnable|number} ms or Runnable instance.
  */
-Runnable.prototype.timeout = function(ms) {
+Runnable.prototype.timeout = function (ms) {
   if (!arguments.length) {
     return this._timeout;
   }
@@ -99,7 +99,7 @@ Runnable.prototype.timeout = function(ms) {
  * @param {number|string} ms
  * @return {Runnable|number} ms or Runnable instance.
  */
-Runnable.prototype.slow = function(ms) {
+Runnable.prototype.slow = function (ms) {
   if (typeof ms === 'undefined') {
     return this._slow;
   }
@@ -118,7 +118,7 @@ Runnable.prototype.slow = function(ms) {
  * @param {boolean} enabled
  * @return {Runnable|boolean} enabled or Runnable instance.
  */
-Runnable.prototype.enableTimeouts = function(enabled) {
+Runnable.prototype.enableTimeouts = function (enabled) {
   if (!arguments.length) {
     return this._enableTimeouts;
   }
@@ -132,7 +132,7 @@ Runnable.prototype.enableTimeouts = function(enabled) {
  *
  * @api public
  */
-Runnable.prototype.skip = function() {
+Runnable.prototype.skip = function () {
   throw new Pending('sync skip');
 };
 
@@ -141,7 +141,7 @@ Runnable.prototype.skip = function() {
  *
  * @api private
  */
-Runnable.prototype.isPending = function() {
+Runnable.prototype.isPending = function () {
   return this.pending || (this.parent && this.parent.isPending());
 };
 
@@ -150,7 +150,7 @@ Runnable.prototype.isPending = function() {
  *
  * @api private
  */
-Runnable.prototype.retries = function(n) {
+Runnable.prototype.retries = function (n) {
   if (!arguments.length) {
     return this._retries;
   }
@@ -162,7 +162,7 @@ Runnable.prototype.retries = function(n) {
  *
  * @api private
  */
-Runnable.prototype.currentRetry = function(n) {
+Runnable.prototype.currentRetry = function (n) {
   if (!arguments.length) {
     return this._currentRetry;
   }
@@ -176,7 +176,7 @@ Runnable.prototype.currentRetry = function(n) {
  * @api public
  * @return {string}
  */
-Runnable.prototype.fullTitle = function() {
+Runnable.prototype.fullTitle = function () {
   return this.parent.fullTitle() + ' ' + this.title;
 };
 
@@ -185,7 +185,7 @@ Runnable.prototype.fullTitle = function() {
  *
  * @api private
  */
-Runnable.prototype.clearTimeout = function() {
+Runnable.prototype.clearTimeout = function () {
   clearTimeout(this.timer);
 };
 
@@ -195,8 +195,8 @@ Runnable.prototype.clearTimeout = function() {
  * @api private
  * @return {string}
  */
-Runnable.prototype.inspect = function() {
-  return JSON.stringify(this, function(key, val) {
+Runnable.prototype.inspect = function () {
+  return JSON.stringify(this, function (key, val) {
     if (key[0] === '_') {
       return;
     }
@@ -215,7 +215,7 @@ Runnable.prototype.inspect = function() {
  *
  * @api private
  */
-Runnable.prototype.resetTimeout = function() {
+Runnable.prototype.resetTimeout = function () {
   var self = this;
   var ms = this.timeout() || 1e9;
 
@@ -223,7 +223,7 @@ Runnable.prototype.resetTimeout = function() {
     return;
   }
   this.clearTimeout();
-  this.timer = setTimeout(function() {
+  this.timer = setTimeout(function () {
     if (!self._enableTimeouts) {
       return;
     }
@@ -238,7 +238,7 @@ Runnable.prototype.resetTimeout = function() {
  * @api private
  * @param {string[]} globals
  */
-Runnable.prototype.globals = function(globals) {
+Runnable.prototype.globals = function (globals) {
   if (!arguments.length) {
     return this._allowedGlobals;
   }
@@ -251,7 +251,7 @@ Runnable.prototype.globals = function(globals) {
  * @param {Function} fn
  * @api private
  */
-Runnable.prototype.run = function(fn) {
+Runnable.prototype.run = function (fn) {
   var self = this;
   var start = new Date();
   var ctx = this.ctx;
@@ -264,7 +264,7 @@ Runnable.prototype.run = function(fn) {
   }
 
   // called multiple times
-  function multiple(err) {
+  function multiple (err) {
     if (emitted) {
       return;
     }
@@ -273,7 +273,7 @@ Runnable.prototype.run = function(fn) {
   }
 
   // finished
-  function done(err) {
+  function done (err) {
     var ms = self.timeout();
     if (self.timedOut) {
       return;
@@ -299,7 +299,7 @@ Runnable.prototype.run = function(fn) {
     this.resetTimeout();
 
     // allows skip() to be used in an explicit async context
-    this.skip = function asyncSkip() {
+    this.skip = function asyncSkip () {
       done(new Pending('async skip call'));
       // halt execution.  the Runnable will be marked pending
       // by the previous call, and the uncaught handler will ignore
@@ -335,18 +335,18 @@ Runnable.prototype.run = function(fn) {
     done(utils.getError(err));
   }
 
-  function callFn(fn) {
+  function callFn (fn) {
     var result = fn.call(ctx);
     if (result && typeof result.then === 'function') {
       self.resetTimeout();
       result
-        .then(function() {
+        .then(function () {
           done();
           // Return null so libraries like bluebird do not warn about
           // subsequently constructed Promises.
           return null;
         },
-        function(reason) {
+        function (reason) {
           done(reason || new Error('Promise rejected with no or falsy reason'));
         });
     } else {
@@ -358,15 +358,15 @@ Runnable.prototype.run = function(fn) {
     }
   }
 
-  function callFnAsync(fn) {
-    var result = fn.call(ctx, function(err) {
+  function callFnAsync (fn) {
+    var result = fn.call(ctx, function (err) {
       if (err instanceof Error || toString.call(err) === '[object Error]') {
         return done(err);
       }
       if (err) {
         if (Object.prototype.toString.call(err) === '[object Object]') {
-          return done(new Error('done() invoked with non-Error: '
-            + JSON.stringify(err)));
+          return done(new Error('done() invoked with non-Error: ' +
+            JSON.stringify(err)));
         }
         return done(new Error('done() invoked with non-Error: ' + err));
       }
diff --git a/lib/runner.js b/lib/runner.js
--- a/lib/runner.js
+++ b/lib/runner.js
@@ -61,7 +61,7 @@ module.exports = Runner;
  * @param {boolean} [delay] Whether or not to delay execution of root suite
  * until ready.
  */
-function Runner(suite, delay) {
+function Runner (suite, delay) {
   var self = this;
   this._globals = [];
   this._abort = false;
@@ -70,10 +70,10 @@ function Runner(suite, delay) {
   this.started = false;
   this.total = suite.total();
   this.failures = 0;
-  this.on('test end', function(test) {
+  this.on('test end', function (test) {
     self.checkGlobals(test);
   });
-  this.on('hook end', function(hook) {
+  this.on('hook end', function (hook) {
     self.checkGlobals(hook);
   });
   this._defaultGrep = /.*/;
@@ -106,7 +106,7 @@ inherits(Runner, EventEmitter);
  * @param {boolean} invert
  * @return {Runner} Runner instance.
  */
-Runner.prototype.grep = function(re, invert) {
+Runner.prototype.grep = function (re, invert) {
   debug('grep %s', re);
   this._grep = re;
   this._invert = invert;
@@ -124,11 +124,11 @@ Runner.prototype.grep = function(re, invert) {
  * @param {Suite} suite
  * @return {number}
  */
-Runner.prototype.grepTotal = function(suite) {
+Runner.prototype.grepTotal = function (suite) {
   var self = this;
   var total = 0;
 
-  suite.eachTest(function(test) {
+  suite.eachTest(function (test) {
     var match = self._grep.test(test.fullTitle());
     if (self._invert) {
       match = !match;
@@ -147,7 +147,7 @@ Runner.prototype.grepTotal = function(suite) {
  * @return {Array}
  * @api private
  */
-Runner.prototype.globalProps = function() {
+Runner.prototype.globalProps = function () {
   var props = keys(global);
 
   // non-enumerables
@@ -170,7 +170,7 @@ Runner.prototype.globalProps = function() {
  * @param {Array} arr
  * @return {Runner} Runner instance.
  */
-Runner.prototype.globals = function(arr) {
+Runner.prototype.globals = function (arr) {
   if (!arguments.length) {
     return this._globals;
   }
@@ -184,7 +184,7 @@ Runner.prototype.globals = function(arr) {
  *
  * @api private
  */
-Runner.prototype.checkGlobals = function(test) {
+Runner.prototype.checkGlobals = function (test) {
   if (this.ignoreLeaks) {
     return;
   }
@@ -219,7 +219,7 @@ Runner.prototype.checkGlobals = function(test) {
  * @param {Test} test
  * @param {Error} err
  */
-Runner.prototype.fail = function(test, err) {
+Runner.prototype.fail = function (test, err) {
   if (test.isPending()) {
     return;
   }
@@ -258,7 +258,7 @@ Runner.prototype.fail = function(test, err) {
  * @param {Hook} hook
  * @param {Error} err
  */
-Runner.prototype.failHook = function(hook, err) {
+Runner.prototype.failHook = function (hook, err) {
   if (hook.ctx && hook.ctx.currentTest) {
     hook.originalTitle = hook.originalTitle || hook.title;
     hook.title = hook.originalTitle + ' for "' + hook.ctx.currentTest.title + '"';
@@ -278,12 +278,12 @@ Runner.prototype.failHook = function(hook, err) {
  * @param {Function} fn
  */
 
-Runner.prototype.hook = function(name, fn) {
+Runner.prototype.hook = function (name, fn) {
   var suite = this.suite;
   var hooks = suite['_' + name];
   var self = this;
 
-  function next(i) {
+  function next (i) {
     var hook = hooks[i];
     if (!hook) {
       return fn();
@@ -295,12 +295,12 @@ Runner.prototype.hook = function(name, fn) {
     self.emit('hook', hook);
 
     if (!hook.listeners('error').length) {
-      hook.on('error', function(err) {
+      hook.on('error', function (err) {
         self.failHook(hook, err);
       });
     }
 
-    hook.run(function(err) {
+    hook.run(function (err) {
       var testError = hook.error();
       if (testError) {
         self.fail(self.test, testError);
@@ -310,7 +310,7 @@ Runner.prototype.hook = function(name, fn) {
           if (name === 'beforeEach' || name === 'afterEach') {
             self.test.pending = true;
           } else {
-            utils.forEach(suite.tests, function(test) {
+            utils.forEach(suite.tests, function (test) {
               test.pending = true;
             });
             // a pending hook won't be executed twice.
@@ -329,7 +329,7 @@ Runner.prototype.hook = function(name, fn) {
     });
   }
 
-  Runner.immediately(function() {
+  Runner.immediately(function () {
     next(0);
   });
 };
@@ -343,11 +343,11 @@ Runner.prototype.hook = function(name, fn) {
  * @param {Array} suites
  * @param {Function} fn
  */
-Runner.prototype.hooks = function(name, suites, fn) {
+Runner.prototype.hooks = function (name, suites, fn) {
   var self = this;
   var orig = this.suite;
 
-  function next(suite) {
+  function next (suite) {
     self.suite = suite;
 
     if (!suite) {
@@ -355,7 +355,7 @@ Runner.prototype.hooks = function(name, suites, fn) {
       return fn();
     }
 
-    self.hook(name, function(err) {
+    self.hook(name, function (err) {
       if (err) {
         var errSuite = self.suite;
         self.suite = orig;
@@ -376,7 +376,7 @@ Runner.prototype.hooks = function(name, suites, fn) {
  * @param {Function} fn
  * @api private
  */
-Runner.prototype.hookUp = function(name, fn) {
+Runner.prototype.hookUp = function (name, fn) {
   var suites = [this.suite].concat(this.parents()).reverse();
   this.hooks(name, suites, fn);
 };
@@ -388,7 +388,7 @@ Runner.prototype.hookUp = function(name, fn) {
  * @param {Function} fn
  * @api private
  */
-Runner.prototype.hookDown = function(name, fn) {
+Runner.prototype.hookDown = function (name, fn) {
   var suites = [this.suite].concat(this.parents());
   this.hooks(name, suites, fn);
 };
@@ -400,7 +400,7 @@ Runner.prototype.hookDown = function(name, fn) {
  * @return {Array}
  * @api private
  */
-Runner.prototype.parents = function() {
+Runner.prototype.parents = function () {
   var suite = this.suite;
   var suites = [];
   while (suite.parent) {
@@ -416,7 +416,7 @@ Runner.prototype.parents = function() {
  * @param {Function} fn
  * @api private
  */
-Runner.prototype.runTest = function(fn) {
+Runner.prototype.runTest = function (fn) {
   var self = this;
   var test = this.test;
 
@@ -432,7 +432,7 @@ Runner.prototype.runTest = function(fn) {
     return test.run(fn);
   }
   try {
-    test.on('error', function(err) {
+    test.on('error', function (err) {
       self.fail(test, err);
     });
     test.run(fn);
@@ -448,12 +448,12 @@ Runner.prototype.runTest = function(fn) {
  * @param {Suite} suite
  * @param {Function} fn
  */
-Runner.prototype.runTests = function(suite, fn) {
+Runner.prototype.runTests = function (suite, fn) {
   var self = this;
   var tests = suite.tests.slice();
   var test;
 
-  function hookErr(_, errSuite, after) {
+  function hookErr (_, errSuite, after) {
     // before/after Each hook for errSuite failed:
     var orig = self.suite;
 
@@ -463,7 +463,7 @@ Runner.prototype.runTests = function(suite, fn) {
 
     if (self.suite) {
       // call hookUp afterEach
-      self.hookUp('afterEach', function(err2, errSuite2) {
+      self.hookUp('afterEach', function (err2, errSuite2) {
         self.suite = orig;
         // some hooks may fail even now
         if (err2) {
@@ -479,7 +479,7 @@ Runner.prototype.runTests = function(suite, fn) {
     }
   }
 
-  function next(err, errSuite) {
+  function next (err, errSuite) {
     // if we bail after first err
     if (self.failures && suite._bail) {
       return fn();
@@ -531,7 +531,7 @@ Runner.prototype.runTests = function(suite, fn) {
 
     // execute test and hook(s)
     self.emit('test', self.test = test);
-    self.hookDown('beforeEach', function(err, errSuite) {
+    self.hookDown('beforeEach', function (err, errSuite) {
       if (test.isPending()) {
         self.emit('pending', test);
         self.emit('test end', test);
@@ -541,7 +541,7 @@ Runner.prototype.runTests = function(suite, fn) {
         return hookErr(err, errSuite, false);
       }
       self.currentRunnable = self.test;
-      self.runTest(function(err) {
+      self.runTest(function (err) {
         test = self.test;
         if (err) {
           var retry = test.currentRetry();
@@ -588,7 +588,7 @@ Runner.prototype.runTests = function(suite, fn) {
  * @param {Suite} suite
  * @param {Function} fn
  */
-Runner.prototype.runSuite = function(suite, fn) {
+Runner.prototype.runSuite = function (suite, fn) {
   var i = 0;
   var self = this;
   var total = this.grepTotal(suite);
@@ -602,7 +602,7 @@ Runner.prototype.runSuite = function(suite, fn) {
 
   this.emit('suite', this.suite = suite);
 
-  function next(errSuite) {
+  function next (errSuite) {
     if (errSuite) {
       // current suite failed on a hook from errSuite
       if (errSuite === suite) {
@@ -628,7 +628,7 @@ Runner.prototype.runSuite = function(suite, fn) {
     // huge recursive loop and thus a maximum call stack error.
     // See comment in `this.runTests()` for more information.
     if (self._grep !== self._defaultGrep) {
-      Runner.immediately(function() {
+      Runner.immediately(function () {
         self.runSuite(curr, next);
       });
     } else {
@@ -636,7 +636,7 @@ Runner.prototype.runSuite = function(suite, fn) {
     }
   }
 
-  function done(errSuite) {
+  function done (errSuite) {
     self.suite = suite;
     self.nextSuite = next;
 
@@ -650,7 +650,7 @@ Runner.prototype.runSuite = function(suite, fn) {
       // remove reference to test
       delete self.test;
 
-      self.hook('afterAll', function() {
+      self.hook('afterAll', function () {
         self.emit('suite end', suite);
         fn(errSuite);
       });
@@ -659,7 +659,7 @@ Runner.prototype.runSuite = function(suite, fn) {
 
   this.nextSuite = next;
 
-  this.hook('beforeAll', function(err) {
+  this.hook('beforeAll', function (err) {
     if (err) {
       return done();
     }
@@ -673,9 +673,9 @@ Runner.prototype.runSuite = function(suite, fn) {
  * @param {Error} err
  * @api private
  */
-Runner.prototype.uncaught = function(err) {
+Runner.prototype.uncaught = function (err) {
   if (err) {
-    debug('uncaught exception %s', err !== function() {
+    debug('uncaught exception %s', err !== function () {
       return this;
     }.call(err) ? err : (err.message || err));
   } else {
@@ -746,8 +746,8 @@ Runner.prototype.uncaught = function(err) {
  *
  * @param {Suite} suite
  */
-function cleanSuiteReferences(suite) {
-  function cleanArrReferences(arr) {
+function cleanSuiteReferences (suite) {
+  function cleanArrReferences (arr) {
     for (var i = 0; i < arr.length; i++) {
       delete arr[i].fn;
     }
@@ -784,7 +784,7 @@ function cleanSuiteReferences(suite) {
  * @param {Function} fn
  * @return {Runner} Runner instance.
  */
-Runner.prototype.run = function(fn) {
+Runner.prototype.run = function (fn) {
   var self = this;
   var rootSuite = this.suite;
 
@@ -793,16 +793,16 @@ Runner.prototype.run = function(fn) {
     filterOnly(rootSuite);
   }
 
-  fn = fn || function() {};
+  fn = fn || function () {};
 
-  function uncaught(err) {
+  function uncaught (err) {
     self.uncaught(err);
   }
 
-  function start() {
+  function start () {
     self.started = true;
     self.emit('start');
-    self.runSuite(rootSuite, function() {
+    self.runSuite(rootSuite, function () {
       debug('finished running');
       self.emit('end');
     });
@@ -814,7 +814,7 @@ Runner.prototype.run = function(fn) {
   this.on('suite end', cleanSuiteReferences);
 
   // callback
-  this.on('end', function() {
+  this.on('end', function () {
     debug('end');
     process.removeListener('uncaughtException', uncaught);
     fn(self.failures);
@@ -841,7 +841,7 @@ Runner.prototype.run = function(fn) {
  * @api public
  * @return {Runner} Runner instance.
  */
-Runner.prototype.abort = function() {
+Runner.prototype.abort = function () {
   debug('aborting');
   this._abort = true;
 
@@ -855,7 +855,7 @@ Runner.prototype.abort = function() {
  * @returns {Boolean}
  * @api private
  */
-function filterOnly(suite) {
+function filterOnly (suite) {
   if (suite._onlyTests.length) {
     // If the suite contains `only` tests, run those and ignore any nested suites.
     suite.tests = suite._onlyTests;
@@ -863,7 +863,7 @@ function filterOnly(suite) {
   } else {
     // Otherwise, do not run any of the tests in this suite.
     suite.tests = [];
-    utils.forEach(suite._onlySuites, function(onlySuite) {
+    utils.forEach(suite._onlySuites, function (onlySuite) {
       // If there are other `only` tests/suites nested in the current `only` suite, then filter that `only` suite.
       // Otherwise, all of the tests on this `only` suite should be run, so don't filter it.
       if (hasOnly(onlySuite)) {
@@ -871,7 +871,7 @@ function filterOnly(suite) {
       }
     });
     // Run the `only` suites, as well as any other suites that have `only` tests/suites as descendants.
-    suite.suites = filter(suite.suites, function(childSuite) {
+    suite.suites = filter(suite.suites, function (childSuite) {
       return indexOf(suite._onlySuites, childSuite) !== -1 || filterOnly(childSuite);
     });
   }
@@ -886,7 +886,7 @@ function filterOnly(suite) {
  * @returns {Boolean}
  * @api private
  */
-function hasOnly(suite) {
+function hasOnly (suite) {
   return suite._onlyTests.length || suite._onlySuites.length || some(suite.suites, hasOnly);
 }
 
@@ -898,8 +898,8 @@ function hasOnly(suite) {
  * @param {Array} globals
  * @return {Array}
  */
-function filterLeaks(ok, globals) {
-  return filter(globals, function(key) {
+function filterLeaks (ok, globals) {
+  return filter(globals, function (key) {
     // Firefox and Chrome exposes iframes as index inside the window object
     if (/^\d+/.test(key)) {
       return false;
@@ -923,7 +923,7 @@ function filterLeaks(ok, globals) {
       return false;
     }
 
-    var matched = filter(ok, function(ok) {
+    var matched = filter(ok, function (ok) {
       if (~ok.indexOf('*')) {
         return key.indexOf(ok.split('*')[0]) === 0;
       }
@@ -939,10 +939,10 @@ function filterLeaks(ok, globals) {
  * @return {Array}
  * @api private
  */
-function extraGlobals() {
+function extraGlobals () {
   if (typeof process === 'object' && typeof process.version === 'string') {
     var parts = process.version.split('.');
-    var nodeVersion = utils.reduce(parts, function(a, v) {
+    var nodeVersion = utils.reduce(parts, function (a, v) {
       return a << 8 | v;
     });
 
diff --git a/lib/suite.js b/lib/suite.js
--- a/lib/suite.js
+++ b/lib/suite.js
@@ -25,7 +25,7 @@ exports = module.exports = Suite;
  * @param {string} title
  * @return {Suite}
  */
-exports.create = function(parent, title) {
+exports.create = function (parent, title) {
   var suite = new Suite(title, parent.ctx);
   suite.parent = parent;
   title = suite.fullTitle();
@@ -40,12 +40,12 @@ exports.create = function(parent, title) {
  * @param {string} title
  * @param {Context} parentContext
  */
-function Suite(title, parentContext) {
+function Suite (title, parentContext) {
   if (!utils.isString(title)) {
     throw new Error('Suite `title` should be a "string" but "' + typeof title + '" was given instead.');
   }
   this.title = title;
-  function Context() {}
+  function Context () {}
   Context.prototype = parentContext;
   this.ctx = new Context();
   this.suites = [];
@@ -77,7 +77,7 @@ inherits(Suite, EventEmitter);
  * @api private
  * @return {Suite}
  */
-Suite.prototype.clone = function() {
+Suite.prototype.clone = function () {
   var suite = new Suite(this.title);
   debug('clone');
   suite.ctx = this.ctx;
@@ -96,7 +96,7 @@ Suite.prototype.clone = function() {
  * @param {number|string} ms
  * @return {Suite|number} for chaining
  */
-Suite.prototype.timeout = function(ms) {
+Suite.prototype.timeout = function (ms) {
   if (!arguments.length) {
     return this._timeout;
   }
@@ -118,7 +118,7 @@ Suite.prototype.timeout = function(ms) {
  * @param {number|string} n
  * @return {Suite|number} for chaining
  */
-Suite.prototype.retries = function(n) {
+Suite.prototype.retries = function (n) {
   if (!arguments.length) {
     return this._retries;
   }
@@ -134,7 +134,7 @@ Suite.prototype.retries = function(n) {
   * @param {boolean} enabled
   * @return {Suite|boolean} self or enabled
   */
-Suite.prototype.enableTimeouts = function(enabled) {
+Suite.prototype.enableTimeouts = function (enabled) {
   if (!arguments.length) {
     return this._enableTimeouts;
   }
@@ -150,7 +150,7 @@ Suite.prototype.enableTimeouts = function(enabled) {
  * @param {number|string} ms
  * @return {Suite|number} for chaining
  */
-Suite.prototype.slow = function(ms) {
+Suite.prototype.slow = function (ms) {
   if (!arguments.length) {
     return this._slow;
   }
@@ -169,7 +169,7 @@ Suite.prototype.slow = function(ms) {
  * @param {boolean} bail
  * @return {Suite|number} for chaining
  */
-Suite.prototype.bail = function(bail) {
+Suite.prototype.bail = function (bail) {
   if (!arguments.length) {
     return this._bail;
   }
@@ -183,7 +183,7 @@ Suite.prototype.bail = function(bail) {
  *
  * @api private
  */
-Suite.prototype.isPending = function() {
+Suite.prototype.isPending = function () {
   return this.pending || (this.parent && this.parent.isPending());
 };
 
@@ -195,7 +195,7 @@ Suite.prototype.isPending = function() {
  * @param {Function} fn
  * @return {Suite} for chaining
  */
-Suite.prototype.beforeAll = function(title, fn) {
+Suite.prototype.beforeAll = function (title, fn) {
   if (this.isPending()) {
     return this;
   }
@@ -225,7 +225,7 @@ Suite.prototype.beforeAll = function(title, fn) {
  * @param {Function} fn
  * @return {Suite} for chaining
  */
-Suite.prototype.afterAll = function(title, fn) {
+Suite.prototype.afterAll = function (title, fn) {
   if (this.isPending()) {
     return this;
   }
@@ -255,7 +255,7 @@ Suite.prototype.afterAll = function(title, fn) {
  * @param {Function} fn
  * @return {Suite} for chaining
  */
-Suite.prototype.beforeEach = function(title, fn) {
+Suite.prototype.beforeEach = function (title, fn) {
   if (this.isPending()) {
     return this;
   }
@@ -285,7 +285,7 @@ Suite.prototype.beforeEach = function(title, fn) {
  * @param {Function} fn
  * @return {Suite} for chaining
  */
-Suite.prototype.afterEach = function(title, fn) {
+Suite.prototype.afterEach = function (title, fn) {
   if (this.isPending()) {
     return this;
   }
@@ -314,7 +314,7 @@ Suite.prototype.afterEach = function(title, fn) {
  * @param {Suite} suite
  * @return {Suite} for chaining
  */
-Suite.prototype.addSuite = function(suite) {
+Suite.prototype.addSuite = function (suite) {
   suite.parent = this;
   suite.timeout(this.timeout());
   suite.retries(this.retries());
@@ -333,7 +333,7 @@ Suite.prototype.addSuite = function(suite) {
  * @param {Test} test
  * @return {Suite} for chaining
  */
-Suite.prototype.addTest = function(test) {
+Suite.prototype.addTest = function (test) {
   test.parent = this;
   test.timeout(this.timeout());
   test.retries(this.retries());
@@ -352,7 +352,7 @@ Suite.prototype.addTest = function(test) {
  * @api public
  * @return {string}
  */
-Suite.prototype.fullTitle = function() {
+Suite.prototype.fullTitle = function () {
   if (this.parent) {
     var full = this.parent.fullTitle();
     if (full) {
@@ -368,8 +368,8 @@ Suite.prototype.fullTitle = function() {
  * @api public
  * @return {number}
  */
-Suite.prototype.total = function() {
-  return utils.reduce(this.suites, function(sum, suite) {
+Suite.prototype.total = function () {
+  return utils.reduce(this.suites, function (sum, suite) {
     return sum + suite.total();
   }, 0) + this.tests.length;
 };
@@ -382,9 +382,9 @@ Suite.prototype.total = function() {
  * @param {Function} fn
  * @return {Suite}
  */
-Suite.prototype.eachTest = function(fn) {
+Suite.prototype.eachTest = function (fn) {
   utils.forEach(this.tests, fn);
-  utils.forEach(this.suites, function(suite) {
+  utils.forEach(this.suites, function (suite) {
     suite.eachTest(fn);
   });
   return this;
@@ -393,7 +393,7 @@ Suite.prototype.eachTest = function(fn) {
 /**
  * This will run the root suite if we happen to be running in delayed mode.
  */
-Suite.prototype.run = function run() {
+Suite.prototype.run = function run () {
   if (this.root) {
     this.emit('run');
   }
diff --git a/lib/utils.js b/lib/utils.js
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -31,7 +31,7 @@ exports.inherits = require('util').inherits;
  * @param  {string} html
  * @return {string}
  */
-exports.escape = function(html) {
+exports.escape = function (html) {
   return String(html)
     .replace(/&/g, '&amp;')
     .replace(/"/g, '&quot;')
@@ -47,7 +47,7 @@ exports.escape = function(html) {
  * @param {Function} fn
  * @param {Object} scope
  */
-exports.forEach = function(arr, fn, scope) {
+exports.forEach = function (arr, fn, scope) {
   for (var i = 0, l = arr.length; i < l; i++) {
     fn.call(scope, arr[i], i);
   }
@@ -60,7 +60,7 @@ exports.forEach = function(arr, fn, scope) {
  * @param {Object} obj
  * @return {boolean}
  */
-exports.isString = function(obj) {
+exports.isString = function (obj) {
   return typeof obj === 'string';
 };
 
@@ -73,7 +73,7 @@ exports.isString = function(obj) {
  * @param {Object} scope
  * @return {Array}
  */
-exports.map = function(arr, fn, scope) {
+exports.map = function (arr, fn, scope) {
   var result = [];
   for (var i = 0, l = arr.length; i < l; i++) {
     result.push(fn.call(scope, arr[i], i, arr));
@@ -90,7 +90,7 @@ exports.map = function(arr, fn, scope) {
  * @param {number} start
  * @return {number}
  */
-var indexOf = exports.indexOf = function(arr, obj, start) {
+var indexOf = exports.indexOf = function (arr, obj, start) {
   for (var i = start || 0, l = arr.length; i < l; i++) {
     if (arr[i] === obj) {
       return i;
@@ -108,7 +108,7 @@ var indexOf = exports.indexOf = function(arr, obj, start) {
  * @param {Object} val Initial value.
  * @return {*}
  */
-var reduce = exports.reduce = function(arr, fn, val) {
+var reduce = exports.reduce = function (arr, fn, val) {
   var rval = val;
 
   for (var i = 0, l = arr.length; i < l; i++) {
@@ -126,7 +126,7 @@ var reduce = exports.reduce = function(arr, fn, val) {
  * @param {Function} fn
  * @return {Array}
  */
-exports.filter = function(arr, fn) {
+exports.filter = function (arr, fn) {
   var ret = [];
 
   for (var i = 0, l = arr.length; i < l; i++) {
@@ -147,7 +147,7 @@ exports.filter = function(arr, fn) {
  * @param {Function} fn
  * @return {Array}
  */
-exports.some = function(arr, fn) {
+exports.some = function (arr, fn) {
   for (var i = 0, l = arr.length; i < l; i++) {
     if (fn(arr[i])) {
       return true;
@@ -163,7 +163,7 @@ exports.some = function(arr, fn) {
  * @param {Object} obj
  * @return {Array} keys
  */
-exports.keys = typeof Object.keys === 'function' ? Object.keys : function(obj) {
+exports.keys = typeof Object.keys === 'function' ? Object.keys : function (obj) {
   var keys = [];
   var has = Object.prototype.hasOwnProperty; // for `window` on <=IE8
 
@@ -184,11 +184,11 @@ exports.keys = typeof Object.keys === 'function' ? Object.keys : function(obj) {
  * @param {Array} files
  * @param {Function} fn
  */
-exports.watch = function(files, fn) {
+exports.watch = function (files, fn) {
   var options = { interval: 100 };
-  files.forEach(function(file) {
+  files.forEach(function (file) {
     debug('file %s', file);
-    watchFile(file, options, function(curr, prev) {
+    watchFile(file, options, function (curr, prev) {
       if (prev.mtime < curr.mtime) {
         fn(file);
       }
@@ -203,7 +203,7 @@ exports.watch = function(files, fn) {
  * @param {Object} obj
  * @return {Boolean}
  */
-var isArray = typeof Array.isArray === 'function' ? Array.isArray : function(obj) {
+var isArray = typeof Array.isArray === 'function' ? Array.isArray : function (obj) {
   return Object.prototype.toString.call(obj) === '[object Array]';
 };
 
@@ -215,7 +215,7 @@ exports.isArray = isArray;
  * @type {Function}
  */
 if (typeof Buffer !== 'undefined' && Buffer.prototype) {
-  Buffer.prototype.toJSON = Buffer.prototype.toJSON || function() {
+  Buffer.prototype.toJSON = Buffer.prototype.toJSON || function () {
     return Array.prototype.slice.call(this, 0);
   };
 }
@@ -227,7 +227,7 @@ if (typeof Buffer !== 'undefined' && Buffer.prototype) {
  * @param {string} path
  * @return {boolean}
  */
-function ignored(path) {
+function ignored (path) {
   return !~ignore.indexOf(path);
 }
 
@@ -240,7 +240,7 @@ function ignored(path) {
  * @param {Array} [ret=[]]
  * @return {Array}
  */
-exports.files = function(dir, ext, ret) {
+exports.files = function (dir, ext, ret) {
   ret = ret || [];
   ext = ext || ['js'];
 
@@ -248,7 +248,7 @@ exports.files = function(dir, ext, ret) {
 
   readdirSync(dir)
     .filter(ignored)
-    .forEach(function(path) {
+    .forEach(function (path) {
       path = join(dir, path);
       if (statSync(path).isDirectory()) {
         exports.files(path, ext, ret);
@@ -267,7 +267,7 @@ exports.files = function(dir, ext, ret) {
  * @param {string} str
  * @return {string}
  */
-exports.slug = function(str) {
+exports.slug = function (str) {
   return str
     .toLowerCase()
     .replace(/ +/g, '-')
@@ -280,7 +280,7 @@ exports.slug = function(str) {
  * @param {string} str
  * @return {string}
  */
-exports.clean = function(str) {
+exports.clean = function (str) {
   str = str
     .replace(/\r\n?|[\n\u2028\u2029]/g, '\n').replace(/^\uFEFF/, '')
     // (traditional)->  space/name     parameters    body     (lambda)-> parameters       body   multi-statement/single          keep body content
@@ -288,7 +288,7 @@ exports.clean = function(str) {
 
   var spaces = str.match(/^\n?( *)/)[1].length;
   var tabs = str.match(/^\n?(\t*)/)[1].length;
-  var re = new RegExp('^\n?' + (tabs ? '\t' : ' ') + '{' + (tabs ? tabs : spaces) + '}', 'gm');
+  var re = new RegExp('^\n?' + (tabs ? '\t' : ' ') + '{' + (tabs || spaces) + '}', 'gm');
 
   str = str.replace(re, '');
 
@@ -302,7 +302,7 @@ exports.clean = function(str) {
  * @param {string} str
  * @return {string}
  */
-exports.trim = function(str) {
+exports.trim = function (str) {
   return str.replace(/^\s+|\s+$/g, '');
 };
 
@@ -313,8 +313,8 @@ exports.trim = function(str) {
  * @param {string} qs
  * @return {Object}
  */
-exports.parseQuery = function(qs) {
-  return reduce(qs.replace('?', '').split('&'), function(obj, pair) {
+exports.parseQuery = function (qs) {
+  return reduce(qs.replace('?', '').split('&'), function (obj, pair) {
     var i = pair.indexOf('=');
     var key = pair.slice(0, i);
     var val = pair.slice(++i);
@@ -331,7 +331,7 @@ exports.parseQuery = function(qs) {
  * @param {string} js
  * @return {string}
  */
-function highlight(js) {
+function highlight (js) {
   return js
     .replace(/</g, '&lt;')
     .replace(/>/g, '&gt;')
@@ -349,7 +349,7 @@ function highlight(js) {
  * @api private
  * @param {string} name
  */
-exports.highlightTags = function(name) {
+exports.highlightTags = function (name) {
   var code = document.getElementById('mocha').getElementsByTagName(name);
   for (var i = 0, len = code.length; i < len; ++i) {
     code[i].innerHTML = highlight(code[i].innerHTML);
@@ -370,7 +370,7 @@ exports.highlightTags = function(name) {
  * @param {string} typeHint The type of the value
  * @returns {string}
  */
-function emptyRepresentation(value, typeHint) {
+function emptyRepresentation (value, typeHint) {
   switch (typeHint) {
     case 'function':
       return '[Function]';
@@ -404,7 +404,7 @@ function emptyRepresentation(value, typeHint) {
  * type(global) // 'global'
  * type(new String('foo') // 'object'
  */
-var type = exports.type = function type(value) {
+var type = exports.type = function type (value) {
   if (value === undefined) {
     return 'undefined';
   } else if (value === null) {
@@ -432,7 +432,7 @@ var type = exports.type = function type(value) {
  * @param {*} value
  * @return {string}
  */
-exports.stringify = function(value) {
+exports.stringify = function (value) {
   var typeHint = type(value);
 
   if (!~indexOf(['object', 'array', 'function'], typeHint)) {
@@ -446,7 +446,7 @@ exports.stringify = function(value) {
     // IE7/IE8 has a bizarre String constructor; needs to be coerced
     // into an array and back to obj.
     if (typeHint === 'string' && typeof value === 'object') {
-      value = reduce(value.split(''), function(acc, char, idx) {
+      value = reduce(value.split(''), function (acc, char, idx) {
         acc[idx] = char;
         return acc;
       }, {});
@@ -474,7 +474,7 @@ exports.stringify = function(value) {
  * @param {number=} depth
  * @returns {*}
  */
-function jsonStringify(object, spaces, depth) {
+function jsonStringify (object, spaces, depth) {
   if (typeof spaces === 'undefined') {
     // primitive types
     return _stringify(object);
@@ -486,11 +486,11 @@ function jsonStringify(object, spaces, depth) {
   var end = isArray(object) ? ']' : '}';
   var length = typeof object.length === 'number' ? object.length : exports.keys(object).length;
   // `.repeat()` polyfill
-  function repeat(s, n) {
+  function repeat (s, n) {
     return new Array(n).join(s);
   }
 
-  function _stringify(val) {
+  function _stringify (val) {
     switch (type(val)) {
       case 'null':
       case 'undefined':
@@ -536,15 +536,15 @@ function jsonStringify(object, spaces, depth) {
       continue; // not my business
     }
     --length;
-    str += '\n ' + repeat(' ', space)
-      + (isArray(object) ? '' : '"' + i + '": ') // key
-      + _stringify(object[i])                     // value
-      + (length ? ',' : '');                     // comma
+    str += '\n ' + repeat(' ', space) +
+      (isArray(object) ? '' : '"' + i + '": ') + // key
+      _stringify(object[i]) +                    // value
+      (length ? ',' : '');                       // comma
   }
 
-  return str
+  return str +
     // [], {}
-    + (str.length !== 1 ? '\n' + repeat(' ', --space) + end : end);
+    (str.length !== 1 ? '\n' + repeat(' ', --space) + end : end);
 }
 
 /**
@@ -554,7 +554,7 @@ function jsonStringify(object, spaces, depth) {
  * @param {*} value The value to test.
  * @return {boolean} True if `value` is a buffer, otherwise false
  */
-exports.isBuffer = function(value) {
+exports.isBuffer = function (value) {
   return typeof Buffer !== 'undefined' && Buffer.isBuffer(value);
 };
 
@@ -577,13 +577,13 @@ exports.isBuffer = function(value) {
  * @param {string} [typeHint] Type hint
  * @return {(Object|Array|Function|string|undefined)}
  */
-exports.canonicalize = function canonicalize(value, stack, typeHint) {
+exports.canonicalize = function canonicalize (value, stack, typeHint) {
   var canonicalizedObj;
   /* eslint-disable no-unused-vars */
   var prop;
   /* eslint-enable no-unused-vars */
   typeHint = typeHint || type(value);
-  function withStack(value, fn) {
+  function withStack (value, fn) {
     stack.push(value);
     fn();
     stack.pop();
@@ -602,8 +602,8 @@ exports.canonicalize = function canonicalize(value, stack, typeHint) {
       canonicalizedObj = value;
       break;
     case 'array':
-      withStack(value, function() {
-        canonicalizedObj = exports.map(value, function(item) {
+      withStack(value, function () {
+        canonicalizedObj = exports.map(value, function (item) {
           return exports.canonicalize(item, stack);
         });
       });
@@ -622,8 +622,8 @@ exports.canonicalize = function canonicalize(value, stack, typeHint) {
     /* falls through */
     case 'object':
       canonicalizedObj = canonicalizedObj || {};
-      withStack(value, function() {
-        exports.forEach(exports.keys(value).sort(), function(key) {
+      withStack(value, function () {
+        exports.forEach(exports.keys(value).sort(), function (key) {
           canonicalizedObj[key] = exports.canonicalize(value[key], stack);
         });
       });
@@ -651,7 +651,7 @@ exports.canonicalize = function canonicalize(value, stack, typeHint) {
  * @param {boolean} recursive Whether or not to recurse into subdirectories.
  * @return {string[]} An array of paths.
  */
-exports.lookupFiles = function lookupFiles(path, extensions, recursive) {
+exports.lookupFiles = function lookupFiles (path, extensions, recursive) {
   var files = [];
   var re = new RegExp('\\.(' + extensions.join('|') + ')$');
 
@@ -677,7 +677,7 @@ exports.lookupFiles = function lookupFiles(path, extensions, recursive) {
     return;
   }
 
-  readdirSync(path).forEach(function(file) {
+  readdirSync(path).forEach(function (file) {
     file = join(path, file);
     try {
       var stat = statSync(file);
@@ -706,7 +706,7 @@ exports.lookupFiles = function lookupFiles(path, extensions, recursive) {
  * @return {Error}
  */
 
-exports.undefinedError = function() {
+exports.undefinedError = function () {
   return new Error('Caught undefined error, did you throw without specifying what?');
 };
 
@@ -717,7 +717,7 @@ exports.undefinedError = function() {
  * @return {Error}
  */
 
-exports.getError = function(err) {
+exports.getError = function (err) {
   return err || exports.undefinedError();
 };
 
@@ -730,7 +730,7 @@ exports.getError = function(err) {
  * (i.e: strip Mocha and internal node functions from stack trace).
  * @returns {Function}
  */
-exports.stackTraceFilter = function() {
+exports.stackTraceFilter = function () {
   // TODO: Replace with `process.browser`
   var is = typeof document === 'undefined' ? { node: true } : { browser: true };
   var slash = path.sep;
@@ -742,26 +742,26 @@ exports.stackTraceFilter = function() {
     slash = '/';
   }
 
-  function isMochaInternal(line) {
-    return (~line.indexOf('node_modules' + slash + 'mocha' + slash))
-      || (~line.indexOf('node_modules' + slash + 'mocha.js'))
-      || (~line.indexOf('bower_components' + slash + 'mocha.js'))
-      || (~line.indexOf(slash + 'mocha.js'));
+  function isMochaInternal (line) {
+    return (~line.indexOf('node_modules' + slash + 'mocha' + slash)) ||
+      (~line.indexOf('node_modules' + slash + 'mocha.js')) ||
+      (~line.indexOf('bower_components' + slash + 'mocha.js')) ||
+      (~line.indexOf(slash + 'mocha.js'));
   }
 
-  function isNodeInternal(line) {
-    return (~line.indexOf('(timers.js:'))
-      || (~line.indexOf('(events.js:'))
-      || (~line.indexOf('(node.js:'))
-      || (~line.indexOf('(module.js:'))
-      || (~line.indexOf('GeneratorFunctionPrototype.next (native)'))
-      || false;
+  function isNodeInternal (line) {
+    return (~line.indexOf('(timers.js:')) ||
+      (~line.indexOf('(events.js:')) ||
+      (~line.indexOf('(node.js:')) ||
+      (~line.indexOf('(module.js:')) ||
+      (~line.indexOf('GeneratorFunctionPrototype.next (native)')) ||
+      false;
   }
 
-  return function(stack) {
+  return function (stack) {
     stack = stack.split('\n');
 
-    stack = reduce(stack, function(list, line) {
+    stack = reduce(stack, function (list, line) {
       if (isMochaInternal(line)) {
         return list;
       }
@@ -789,6 +789,6 @@ exports.stackTraceFilter = function() {
  * @param {*} value
  * @returns {boolean} Whether or not `value` is a Promise
  */
-exports.isPromise = function isPromise(value) {
+exports.isPromise = function isPromise (value) {
   return typeof value === 'object' && typeof value.then === 'function';
 };
diff --git a/scripts/dedefine.js b/scripts/dedefine.js
--- a/scripts/dedefine.js
+++ b/scripts/dedefine.js
@@ -8,16 +8,16 @@
 var through = require('through2');
 var defineRx = /typeof define === ['"]function['"] && define\.amd/g;
 
-function createStream() {
-  return through.obj(function(chunk, enc, next) {
+function createStream () {
+  return through.obj(function (chunk, enc, next) {
     this.push(String(chunk)
       .replace(defineRx, 'false'));
     next();
   });
 }
 
-module.exports = function(b) {
-  function wrap() {
+module.exports = function (b) {
+  function wrap () {
     b.pipeline.get('wrap').push(createStream());
   }
 


Test patch:
diff --git a/lib/test.js b/lib/test.js
--- a/lib/test.js
+++ b/lib/test.js
@@ -19,7 +19,7 @@ module.exports = Test;
  * @param {String} title
  * @param {Function} fn
  */
-function Test(title, fn) {
+function Test (title, fn) {
   if (!isString(title)) {
     throw new Error('Test `title` should be a "string" but "' + typeof title + '" was given instead.');
   }
@@ -35,7 +35,7 @@ Test.prototype = create(Runnable.prototype, {
   constructor: Test
 });
 
-Test.prototype.clone = function() {
+Test.prototype.clone = function () {
   var test = new Test(this.title, this.fn);
   test.timeout(this.timeout());
   test.slow(this.slow());
diff --git a/test/.eslintrc b/test/.eslintrc
deleted file mode 100644
--- a/test/.eslintrc
+++ /dev/null
@@ -1,5 +0,0 @@
----
-env:
-  mocha: true
-globals:
-  expect: false
diff --git a/test/.eslintrc.js b/test/.eslintrc.js
new file mode 100644
--- /dev/null
+++ b/test/.eslintrc.js
@@ -0,0 +1,8 @@
+module.exports = {
+  env: {
+    mocha: true
+  },
+  globals: {
+    expect: false
+  }
+};