Ported NTP4 UI tests to WebUI.

chrome/test/data/webui/ntp4.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.
 
+GEN('#include "chrome/test/data/webui/ntp4_browsertest.h"');
+
 /**
  * TestFixture for NTP4 WebUI testing.
  * @extends {testing.Test}
  * @constructor
  */
 function NTP4WebUITest() {}
 
 NTP4WebUITest.prototype = {
   __proto__: testing.Test.prototype,
 
   /**
    * Browse to the newtab page & call preLoad().
    */
   browsePreload: 'chrome://newtab',
 };
 
 // Test loading new tab page and selecting each card doesn't have console
 // errors.
 TEST_F('NTP4WebUITest', 'TestBrowsePages', function() {
-// This tests the ntp4 new tab page which is not used on touch builds.
+  // This tests the ntp4 new tab page which is not used on touch builds.
   var cardSlider = ntp.getCardSlider();
   assertNotEquals(null, cardSlider);
-  for (var i = 0; i < cardSlider.cardCount; ++i) {
+  for (var i = 0; i < cardSlider.cardCount; i++) {
     cardSlider.selectCard(i);
     expectEquals(i, cardSlider.currentCard);
   }
 });
+
+TEST_F('NTP4WebUITest', 'NTPHasThumbnails', function() {
+  var mostVisited = document.querySelectorAll('.most-visited');
+  assertEquals(8, mostVisited.length, 'There should be 8 most visited tiles.');
+
+  var apps = document.querySelectorAll('.app');
+  assertGE(apps.length, 1, 'There should be at least one app.');
+});
+
+TEST_F('NTP4WebUITest', 'NTPHasNavDots', function() {
+  var navDots = document.querySelectorAll('.dot');
+  assertGE(navDots.length, 2, 'There should be at least two navdots.');
+});
+
+TEST_F('NTP4WebUITest', 'NTPHasSelectedPageAndDot', function() {
+  var selectedDot = document.querySelectorAll('.dot.selected');
+  assertEquals(1, selectedDot.length, 'There should be only one selected dot.');
+
+  var selectedTilePage = document.querySelectorAll('.tile-page.selected-card');
+  assertEquals(
+      1, selectedTilePage.length,
+          'There should be only one selected tile page.');
+});

[Dan Beam, 2012/03/08 17:58:33]

btw, these do work, but I was doing this rather than checking the text of the
username when I rewrote because there was a regression (which is fixed now), you
might be better off just checking that the text of the username is what you'd
expect after shoving the username into the testing profile (i.e. pretend
danh@google.com is signed in and check that
document.querySelector('#login-status-header .profile-name').textContent ==
'danh@google.com') or something)

[Danh Nguyen, 2012/03/08 18:46:14]

This is the logged out test.  The logged in test is at the bottom of this file. 
I did check the displayed user name against the expected value there.

+
+TEST_F('NTP4WebUITest', 'NTPHasNoLoginNameWhenSignedOut', function() {
+  assertEquals(
+      null, document.querySelector('#login-status-header .profile-name'),
+          'Login name shouldn\'t exist when signed out.');
+});
+
+/**
+ * Test fixture for NTP4 WebUI testing with login.
+ * @extends {NTP4WebUITest}
+ * @constructor
+ */
+function NTP4LoggedInWebUITest() {}
+
+NTP4LoggedInWebUITest.prototype = {
+  __proto__: NTP4WebUITest.prototype,
+
+  /*

[Dan Beam, 2012/03/08 17:58:33]

If these are jsDoc comments, you need /** instead of /*

[Danh Nguyen, 2012/03/08 18:46:14]

Done.

+   * Specifies C++ class for login setup.
+   */
+  typedefCppFixture: 'NTP4LoggedInWebUITest',
+
+  /*
+   * Inserts C++ statement to set up login.
+   */
+  testGenPreamble:  function() {
+    GEN('  SetLoginName("user@gmail.com");');
+  }

[Dan Beam, 2012/03/08 17:58:33]

nit: personally I prefer , at the end of object literals, as it makes it easier
to copy/pasta without silly missing , errors

[Danh Nguyen, 2012/03/08 18:46:14]

Done.

+};
+
+TEST_F('NTP4LoggedInWebUITest', 'NTPHasLoginNameWhenSignedIn', function() {
+  var userName = document.querySelector('#login-status-header .profile-name');
+  assertTrue(userName != null);
+  assertEquals(
+      'user@gmail.com', userName.textContent,
+          'The user name should be present on the new tab.');
+});