Add automated test for the edit search engine dialog.

chrome/test/data/webui/edit_search_engine_dialog_browsertest.js

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/**
+ * Test fixture for search engine dialog tests.
+ * @extends {testing.Test}
+ */
+function EditSearchEngineDialogUITest() {};
+
+EditSearchEngineDialogUITest.prototype = {
+  __proto__: testing.Test.prototype,
+
+  /**
+   * Define the C++ fixture class and include it.
+   * @type {?string}
+   * @override
+   */
+  typedefCppFixture: 'EditSearchEngineDialogUITest',
+
+  /**
+   * Show the search engine dialog.
+   */
+  testGenPreamble: function() {
+    GEN('ShowSearchEngineDialog();');
+  },
+};
+
+/**
+ * Asynchronous Test fixture for search engine dialog tests.
+ * @extends {EditSearchEngineDialogUITest}
+ */
+function EditSearchEngineDialogUITestAsync() {};
+
+EditSearchEngineDialogUITestAsync.prototype = {
+  __proto__: EditSearchEngineDialogUITest.prototype,
+
+  /** @inheritDoc */
+  isAsync: true,
+
+  /**
+   * Argument to pass through to |setValidation| once the test is ready to
+   * process it.  The argument consists of a mapping between field names and
+   * contents.
+   * @type{Object.<string, string>}
+   */
+  pendingDetails: null,
+
+  /**
+   * Overrides |setValidation| to address a potential race condition due to
+   * asynchronous initialization of the edit search engine dialog. The override
+   * catches the data being passed to the original |setValidation| method and
+   * defers the validation call until the test is ready to process it.
+   */
+  preLoad: function() {
+    var self = this;
+    window.addEventListener('DOMContentLoaded', function() {
+      self.originalSetValidation = editSearchEngineDialog.setValidation;
+      editSearchEngineDialog.setValidation = function(details) {
+        self.pendingDetails = details;
+      };
+    });
+  },
+};
+
+// Include the bulk of c++ code.
+GEN('#include ' +
+    '"chrome/test/data/webui/edit_search_engine_dialog_browsertest.h"');
+
+/**
+ * Confirms that the data is loaded into the text fields.
+ */
+TEST_F('EditSearchEngineDialogUITest', 'testData', function() {
+  var inputFields = editSearchEngineDialog.inputFields;
+  expectEquals(chrome.expectedUrl, window.location.href);
+  expectEquals('short0', inputFields.description.value);
+  expectEquals('keyword0', inputFields.keyword.value);
+  expectEquals('http://www.test0.com/', inputFields.url.value);
+});
+
+/**
+ * Confirms that the field validation is working.
+ */
+TEST_F('EditSearchEngineDialogUITestAsync',
+       'testInputValidation',
+       function() {
+  var inputFields = editSearchEngineDialog.inputFields;
+  var invalidData = {
+    description: '',
+    keyword: '',
+    url: '%'
+  };
+  var fieldNames = Object.keys(invalidData);
+  var index = 0;
+  var self = this;
+  var validityChecker = function(details) {
+    self.originalSetValidation(details);
+    // Ensure that all inputs are valid with the initial data, and that save
+    // is enabled.  Each subsequent call will have an additional field
+    // containing invalid data.
+    for (var i = 0; i < fieldNames.length; i++) {
+      var field = fieldNames[i];
+      expectEquals(i >= index,
+                   inputFields[field].valid,
+                   'field = ' + field +
+                   ', index = ' + index);
+    }
+    var saveButtonState = editSearchEngineDialog.getSave().disabled;
+    if (index == 0)
+      expectFalse(saveButtonState);
+    else
+      expectTrue(saveButtonState);
+    // Once the validity of the input fields and save button are confirmed, we
+    // invalidate a single field in the input and trigger a new call to check
+    // the validity.  We start with the first input field and increment the
+    // index with each call in order to advance to the next field.  Although
+    // each test is asynchronous, we are guaranteed to get the calls in the
+    // correct order since we wait for the previous validation to complete
+    // before moving to the next field.
+    if (index < fieldNames.length) {
+      if (index == fieldNames.length - 1) {
+        editSearchEngineDialog.setValidation = this.continueTest(
+            WhenTestDone.ALWAYS,
+            validityChecker);
+      }
+      var fieldName = fieldNames[index++];
+      inputFields[fieldName].value = invalidData[fieldName];
+      editSearchEngineDialog.validate();
+    }
+  };
+  // Override |setValidation| to check the status of the icons and save button.
+  editSearchEngineDialog.setValidation = this.continueTest(
+      WhenTestDone.EXPECT,
+      validityChecker);
+  // Check if the first call to |setValidation| tripped before being redirected
+  // to |validityChecker|.
+  if (this.pendingDetails)
+    editSearchEngineDialog.setValidation(this.pendingDetails);
+});
+