1 files changed, 431 insertions, 0 deletions
diff --git a/node_modules/mocha/lib/runner.js b/node_modules/mocha/lib/runner.js
new file mode 100644
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+++ b/node_modules/mocha/lib/runner.js
@@ -0,0 +1,431 @@
+
+/**
+ * Module dependencies.
+ */
+
+var EventEmitter = require('events').EventEmitter
+  , debug = require('debug')('runner')
+  , Test = require('./test')
+  , utils = require('./utils')
+  , noop = function(){};
+
+/**
+ * Expose `Runner`.
+ */
+
+module.exports = Runner;
+
+/**
+ * Initialize a `Runner` for the given `suite`.
+ *
+ * Events:
+ *
+ *   - `start`  execution started
+ *   - `end`  execution complete
+ *   - `suite`  (suite) test suite execution started
+ *   - `suite end`  (suite) all tests (and sub-suites) have finished
+ *   - `test`  (test) test execution started
+ *   - `test end`  (test) test completed
+ *   - `hook`  (hook) hook execution started
+ *   - `hook end`  (hook) hook complete
+ *   - `pass`  (test) test passed
+ *   - `fail`  (test, err) test failed
+ *
+ * @api public
+ */
+
+function Runner(suite) {
+  var self = this;
+  this._globals = [];
+  this.suite = suite;
+  this.total = suite.total();
+  this.failures = 0;
+  this.on('test end', function(test){ self.checkGlobals(test); });
+  this.on('hook end', function(hook){ self.checkGlobals(hook); });
+  this.grep(/.*/);
+  this.globals(utils.keys(global).concat(['errno']));
+}
+
+/**
+ * Inherit from `EventEmitter.prototype`.
+ */
+
+Runner.prototype.__proto__ = EventEmitter.prototype;
+
+/**
+ * Run tests with full titles matching `re`.
+ *
+ * @param {RegExp} re
+ * @return {Runner} for chaining
+ * @api public
+ */
+
+Runner.prototype.grep = function(re){
+  debug('grep %s', re);
+  this._grep = re;
+  return this;
+};
+
+/**
+ * Allow the given `arr` of globals.
+ *
+ * @param {Array} arr
+ * @return {Runner} for chaining
+ * @api public
+ */
+
+Runner.prototype.globals = function(arr){
+  if (0 == arguments.length) return this._globals;
+  debug('globals %j', arr);
+  utils.forEach(arr, function(arr){
+    this._globals.push(arr);
+  }, this);
+  return this;
+};
+
+/**
+ * Check for global variable leaks.
+ *
+ * @api private
+ */
+
+Runner.prototype.checkGlobals = function(test){
+  if (this.ignoreLeaks) return;
+
+  var leaks = utils.filter(utils.keys(global), function(key){
+    return !~utils.indexOf(this._globals, key) && (!global.navigator || 'onerror' !== key);
+  }, this);
+
+  this._globals = this._globals.concat(leaks);
+
+  if (leaks.length > 1) {
+    this.fail(test, new Error('global leaks detected: ' + leaks.join(', ') + ''));
+  } else if (leaks.length) {
+    this.fail(test, new Error('global leak detected: ' + leaks[0]));
+  }
+};
+
+/**
+ * Fail the given `test`.
+ *
+ * @param {Test} test
+ * @param {Error} err
+ * @api private
+ */
+
+Runner.prototype.fail = function(test, err){
+  ++this.failures;
+  test.state = 'failed';
+  this.emit('fail', test, err);
+};
+
+/**
+ * Fail the given `hook` with `err`.
+ *
+ * Hook failures (currently) hard-end due
+ * to that fact that a failing hook will
+ * surely cause subsequent tests to fail,
+ * causing jumbled reporting.
+ *
+ * @param {Hook} hook
+ * @param {Error} err
+ * @api private
+ */
+
+Runner.prototype.failHook = function(hook, err){
+  this.fail(hook, err);
+  this.emit('end');
+};
+
+/**
+ * Run hook `name` callbacks and then invoke `fn()`.
+ *
+ * @param {String} name
+ * @param {Function} function
+ * @api private
+ */
+
+Runner.prototype.hook = function(name, fn){
+  var suite = this.suite
+    , hooks = suite['_' + name]
+    , ms = suite._timeout
+    , self = this
+    , timer;
+
+  function next(i) {
+    var hook = hooks[i];
+    if (!hook) return fn();
+    self.currentRunnable = hook;
+
+    self.emit('hook', hook);
+
+    hook.on('error', function(err){
+      self.failHook(hook, err);
+    });
+
+    hook.run(function(err){
+      hook.removeAllListeners('error');
+      if (err) return self.failHook(hook, err);
+      self.emit('hook end', hook);
+      next(++i);
+    });
+  }
+
+  process.nextTick(function(){
+    next(0);
+  });
+};
+
+/**
+ * Run hook `name` for the given array of `suites`
+ * in order, and callback `fn(err)`.
+ *
+ * @param {String} name
+ * @param {Array} suites
+ * @param {Function} fn
+ * @api private
+ */
+
+Runner.prototype.hooks = function(name, suites, fn){
+  var self = this
+    , orig = this.suite;
+
+  function next(suite) {
+    self.suite = suite;
+
+    if (!suite) {
+      self.suite = orig;
+      return fn();
+    }
+
+    self.hook(name, function(err){
+      if (err) {
+        self.suite = orig;
+        return fn(err);
+      }
+
+      next(suites.pop());
+    });
+  }
+
+  next(suites.pop());
+};
+
+/**
+ * Run hooks from the top level down.
+ *
+ * @param {String} name
+ * @param {Function} fn
+ * @api private
+ */
+
+Runner.prototype.hookUp = function(name, fn){
+  var suites = [this.suite].concat(this.parents()).reverse();
+  this.hooks(name, suites, fn);
+};
+
+/**
+ * Run hooks from the bottom up.
+ *
+ * @param {String} name
+ * @param {Function} fn
+ * @api private
+ */
+
+Runner.prototype.hookDown = function(name, fn){
+  var suites = [this.suite].concat(this.parents());
+  this.hooks(name, suites, fn);
+};
+
+/**
+ * Return an array of parent Suites from
+ * closest to furthest.
+ *
+ * @return {Array}
+ * @api private
+ */
+
+Runner.prototype.parents = function(){
+  var suite = this.suite
+    , suites = [];
+  while (suite = suite.parent) suites.push(suite);
+  return suites;
+};
+
+/**
+ * Run the current test and callback `fn(err)`.
+ *
+ * @param {Function} fn
+ * @api private
+ */
+
+Runner.prototype.runTest = function(fn){
+  var test = this.test
+    , self = this;
+
+  try {
+    test.on('error', function(err){
+      self.fail(test, err);
+    });
+    test.run(fn);
+  } catch (err) {
+    fn(err);
+  }
+};
+
+/**
+ * Run tests in the given `suite` and invoke
+ * the callback `fn()` when complete.
+ *
+ * @param {Suite} suite
+ * @param {Function} fn
+ * @api private
+ */
+
+Runner.prototype.runTests = function(suite, fn){
+  var self = this
+    , tests = suite.tests
+    , test;
+
+  function next(err) {
+    // if we bail after first err
+    if (self.failures && suite._bail) return fn();
+
+    // next test
+    test = tests.shift();
+
+    // all done
+    if (!test) return fn();
+
+    // grep
+    if (!self._grep.test(test.fullTitle())) return next();
+
+    // pending
+    if (test.pending) {
+      self.emit('pending', test);
+      self.emit('test end', test);
+      return next();
+    }
+
+    // execute test and hook(s)
+    self.emit('test', self.test = test);
+    self.hookDown('beforeEach', function(){
+      self.currentRunnable = self.test;
+      self.runTest(function(err){
+        test = self.test;
+
+        if (err) {
+          self.fail(test, err);
+          self.emit('test end', test);
+          return self.hookUp('afterEach', next);
+        }
+
+        test.state = 'passed';
+        self.emit('pass', test);
+        self.emit('test end', test);
+        self.hookUp('afterEach', next);
+      });
+    });
+  }
+
+  this.next = next;
+  next();
+};
+
+/**
+ * Run the given `suite` and invoke the
+ * callback `fn()` when complete.
+ *
+ * @param {Suite} suite
+ * @param {Function} fn
+ * @api private
+ */
+
+Runner.prototype.runSuite = function(suite, fn){
+  var self = this
+    , i = 0;
+
+  debug('run suite %s', suite.fullTitle());
+  this.emit('suite', this.suite = suite);
+
+  function next() {
+    var curr = suite.suites[i++];
+    if (!curr) return done();
+    self.runSuite(curr, next);
+  }
+
+  function done() {
+    self.suite = suite;
+    self.hook('afterAll', function(){
+      self.emit('suite end', suite);
+      fn();
+    });
+  }
+
+  this.hook('beforeAll', function(){
+    self.runTests(suite, next);
+  });
+};
+
+/**
+ * Handle uncaught exceptions.
+ *
+ * @param {Error} err
+ * @api private
+ */
+
+Runner.prototype.uncaught = function(err){
+  debug('uncaught exception');
+  var runnable = this.currentRunnable;
+  if ('failed' == runnable.state) return;
+  runnable.clearTimeout();
+  err.uncaught = true;
+  this.fail(runnable, err);
+
+  // recover from test
+  if ('test' == runnable.type) {
+    this.emit('test end', runnable);
+    this.hookUp('afterEach', this.next);
+    return;
+  }
+
+  // bail on hooks
+  this.emit('end');
+};
+
+/**
+ * Run the root suite and invoke `fn(failures)`
+ * on completion.
+ *
+ * @param {Function} fn
+ * @return {Runner} for chaining
+ * @api public
+ */
+
+Runner.prototype.run = function(fn){
+  var self = this
+    , fn = fn || function(){};
+
+  debug('start');
+
+  // callback
+  this.on('end', function(){
+    debug('end');
+    process.removeListener('uncaughtException', this.uncaught);
+    fn(self.failures);
+  });
+
+  // run suites
+  this.emit('start');
+  this.runSuite(this.suite, function(){
+    debug('finished running');
+    self.emit('end');
+  });
+
+  // uncaught exception
+  process.on('uncaughtException', function(err){
+    self.uncaught(err);
+  });
+
+  return this;
+};