Add a password handler to get the list of passwords in md-settings.

chrome/test/data/webui/settings/settings_passwords_section_browsertest.js

 // Copyright 2015 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.
 
 /** @fileoverview Runs the Polymer Password Settings tests. */
 
 /** @const {string} Path to root from chrome/test/data/webui/settings/. */
 var ROOT_PATH = '../../../../../';
 
 // Polymer BrowserTest fixture.
 GEN_INCLUDE(
     [ROOT_PATH + 'chrome/test/data/webui/polymer_browser_test_base.js']);
 
 /**
  * @constructor
  * @extends {PolymerTest}
  */
 function SettingsPasswordSectionBrowserTest() {}
 
 SettingsPasswordSectionBrowserTest.prototype = {
   __proto__: PolymerTest.prototype,
 
   /** @override */
   browsePreload:
       'chrome://md-settings/passwords_and_forms_page/passwords_section.html',
 
   /** @override */
   extraLibraries: PolymerTest.getLibraries(ROOT_PATH),
+
+  /** @override */
+  setUp: function() {
+    PolymerTest.prototype.setUp.call(this);
+
+    // Test is run on an individual element that won't have a page language.
+    this.accessibilityAuditConfig.auditRulesToIgnore.push('humanLangMissing');
+  },
+
+  /**
+   * Creates a single item for the list of passwords.
+   * @param {string} url
+   * @param {string} username
+   * @param {number} passwordLength

[Dan Beam, 2016/01/27 00:17:45]

needs a @return, might also want to @typedef this

[hcarmona, 2016/01/27 02:46:18]

Done.

+   */
+  createPasswordItem(url, username, passwordLength) {

[Dan Beam, 2016/01/27 00:17:45]

can this be private?

[Dan Beam, 2016/01/27 00:17:45]

createPasswordItem: function(url, username, passwordLength) {

[hcarmona, 2016/01/27 02:46:18]

Done.

[hcarmona, 2016/01/27 02:46:18]

Done.

+    return {
+      loginPair: {originUrl: url, username: username},
+      numCharactersInPassword: passwordLength
+    };
+  },
+
+  /**
+   * Helper method that validates a node matches the data for an index.
+   * @param {Array<Element>} nodes The nodes that will be checked.

[Dan Beam, 2016/01/27 00:17:45]

nit: this should probably be !Array<!Element>

[hcarmona, 2016/01/27 02:46:18]

Done.

+   * @param {Array<Object>} passwordList The expected data.

[Dan Beam, 2016/01/27 00:17:45]

and !Array<!Object>

[hcarmona, 2016/01/27 02:46:18]

Done.

+   * @param {number} index The index that should match the node and data.
+   */
+  validate(nodes, passwordList, index) {
+    var node = nodes[index];
+    var passwordInfo = passwordList[index];
+    assertTrue(!!node, 'Failed to get nodes[' + index + ']');
+    assertTrue(!!passwordInfo, 'Failed to get passwordList[' + index + ']');
+    assertEquals(
+        passwordInfo.loginPair.originUrl,
+        node.querySelector('#shownUrl').textContent,
+        'shownUrl mismatch in nodes[' + index + ']');
+    assertEquals(
+        passwordInfo.loginPair.username,
+        node.querySelector('#username').textContent,
+        'username mismatch in nodes[' + index + ']');
+    assertEquals(
+        passwordInfo.numCharactersInPassword,
+        node.querySelector('#password').value.length,
+        'password size mismatch in nodes[' + index + ']');
+  },
 };
 
 /**
  * This test will validate that the section is loaded with data.
  */
 TEST_F('SettingsPasswordSectionBrowserTest', 'uiTests', function() {
   var self = this;
 
   suite('PasswordsSection', function() {
     test('doWork', function(done) {
       assertEquals(self.browsePreload, document.location.href,
                    'Unexpected URL loaded');
 
-      var passwordList = [{origin: 'anotherwebsite.com',
-                           username: 'luigi',
-                           password: '*******'},
-                          {origin: 'longwebsite.com',
-                           username: 'peach',
-                           password: '***'},
-                          {origin: 'website.com',
-                           username: 'mario',
-                           password: '*******'}];
+      var passwordList = [
+        self.createPasswordItem('anotherwebsite.com', 'luigi', 7),
+        self.createPasswordItem('longwebsite.com', 'peach', 7),
+        self.createPasswordItem('website.com', 'mario', 7)
+      ];
 
       // Create a passwords-section to use for testing.
       var passwordsSection = document.createElement('passwords-section');
       passwordsSection.savedPasswords = passwordList;
       document.body.appendChild(passwordsSection);
 
       // TODO(hcarmona): use an event listener rather than a setTimeout(0).
       window.setTimeout(function() {
         // Assert that the data is passed into the iron list. If this fails,
         // then other expectations will also fail.
         assertEquals(passwordList, passwordsSection.$.passwordList.items,
                      'Failed to pass list of passwords to iron-list');
 
         var list = Polymer.dom(passwordsSection.$.passwordList);
-        assertTrue(!!list, "Failed to get the password list");
+        assertTrue(!!list, 'Failed to get the password list');
         // Skip the first child because it's the template.
         var listChildren = list.children.slice(1);
 
-        var validate = function(nodes, passwordList, index) {
-          assertTrue(!!nodes[index], 'Failed to get nodes[' + index + ']');
-          assertEquals(passwordList[index].origin,
-                       nodes[index].querySelector('#origin').textContent,
-                       'origin mismatch in nodes[' + index + ']');
-          assertEquals(passwordList[index].username,
-                       nodes[index].querySelector('#username').textContent,
-                       'username mismatch in nodes[' + index + ']');
-          assertEquals(passwordList[index].password,
-                       nodes[index].querySelector('#password').textContent,
-                       'password mismatch in nodes[' + index + ']');
-        };
-
-        validate(listChildren, passwordList, 0);
-        validate(listChildren, passwordList, 1);
-        validate(listChildren, passwordList, 2);
+        self.validate(listChildren, passwordList, 0);
+        self.validate(listChildren, passwordList, 1);
+        self.validate(listChildren, passwordList, 2);
         done();
       }, 0);
     });
   });
 
   mocha.run();
 });