fix(protractor): removing a mock module that was never added now is a noop

It used to remove the last module - now is a noop.

Closes #764

Author: juliemr

lib/protractor.js

@@ -841,11 +841,13 @@ var Protractor = function(webdriverInstance, opt_baseUrl, opt_rootElement) {
    */
   this.params = {};
 
-  this.moduleNames_ = [];
-
-  this.moduleScripts_ = [];
-
-  this.moduleArgs_ = [];
+  /**
+   * Information about mock modules that will be installed during every
+   * get().
+   *
+   * @type {Array<{name: string, script: function|string, args: Array.<string>}>}
+   */
+  this.mockModules_ = [];
 };
 
 /**
@@ -930,30 +932,32 @@ Protractor.prototype.isElementPresent = function(locatorOrElement) {
  *     the script and may be referenced using the `arguments` object.
  */
 Protractor.prototype.addMockModule = function(name, script) {
-  this.moduleNames_.push(name);
-  this.moduleScripts_.push(script);
   var moduleArgs = Array.prototype.slice.call(arguments, 2);
-  this.moduleArgs_.push(moduleArgs);
+
+  this.mockModules_.push({
+    name: name,
+    script: script,
+    args: moduleArgs
+  });
 };
 
 /**
  * Clear the list of registered mock modules.
  */
 Protractor.prototype.clearMockModules = function() {
-  this.moduleNames_ = [];
-  this.moduleScripts_ = [];
-  this.moduleArgs_ = [];
+  this.mockModules_ = [];
 };
 
 /**
  * Remove a registered mock module.
  * @param {!string} name The name of the module to remove.
  */
 Protractor.prototype.removeMockModule = function(name) {
-  var index = this.moduleNames_.indexOf(name);
-  this.moduleNames_.splice(index, 1);
-  this.moduleScripts_.splice(index, 1);
-  this.moduleArgs_.splice(index, 1);
+  for (var i = 0; i < this.mockModules_.length; ++i) {
+    if (this.mockModules_[i].name == name) {
+      this.mockModules_.splice(i, 1);
+    }
+  }
 };
 
 /**
@@ -1020,20 +1024,22 @@ Protractor.prototype.get = function(destination, opt_timeout) {
 
   // At this point, Angular will pause for us, until angular.resumeBootstrap
   // is called.
-  for (var i = 0; i < this.moduleScripts_.length; ++i) {
-    var name = this.moduleNames_[i];
-    var executeScriptArgs = [this.moduleScripts_[i]].
-      concat(this.moduleArgs_[i]);
+  var moduleNames = [];
+  for (var i = 0; i < this.mockModules_.length; ++i) {
+    var mockModule = this.mockModules_[i];
+    var name = mockModule.name;
+    moduleNames.push(name);
+    var executeScriptArgs = [mockModule.script].concat(mockModule.args);
     this.driver.executeScript.apply(this, executeScriptArgs).
-      then(null, function(err) {
-        throw 'Error wile running module script ' + name +
-            ': ' + err.message;
-      });
+        then(null, function(err) {
+          throw 'Error wile running module script ' + name +
+              ': ' + err.message;
+        });
   }
 
   return this.driver.executeScript(
       'angular.resumeBootstrap(arguments[0]);',
-      this.moduleNames_);
+      moduleNames);
 };
 
 /**

spec/basic/mockmodule_spec.js

@@ -42,6 +42,21 @@ describe('mock modules', function() {
     expect(element(by.css('[app-version]')).getText()).toEqual('3');
   });
 
+  it('should use the latest module if two are added with the same name', function() {
+    browser.addMockModule('moduleA', mockModuleA);
+
+    var mockModuleA2 = function() {
+      var newModule = angular.module('moduleA', []);
+      newModule.value('version', '3');
+    };
+
+    browser.addMockModule('moduleA', mockModuleA2);
+
+    browser.get('index.html');
+
+    expect(element(by.css('[app-version]')).getText()).toEqual('3');
+  });
+
   it('should have the version of the module A after deleting module B', function() {
     browser.addMockModule('moduleA', mockModuleA);
     browser.addMockModule('moduleB', mockModuleB);
@@ -53,6 +68,15 @@ describe('mock modules', function() {
     expect(element(by.css('[app-version]')).getText()).toEqual('2');
   });
 
+  it('should be a noop to remove a module which does not exist', function() {
+    browser.addMockModule('moduleA', mockModuleA);
+    browser.removeMockModule('moduleB');
+
+    browser.get('index.html');
+
+    expect(element(by.css('[app-version]')).getText()).toEqual('2');
+  });
+
   it('should have the version provided from parameters through Module C', function() {
     browser.addMockModule('moduleC', mockModuleC, '42', 'beta');