Add Polymer tests for cr-settings-prefs

chrome/test/data/webui/settings/prefs_test_cases.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.
+
+/**
+ * @type {Array<{key: string,
+ *               type: chrome.settingsPrivate.PrefType,
+ *               values: !Array<*>}>}
+ * Test cases containing preference data. Each pref has three test values,
+ * which can be used to change the pref. Intentionally, for a given pref, not
+ * every test value is different from the one before it; this tests what
+ * happens when stale changes are reported.
+ */
+var prefsTestCases = [{
+  key: 'top_level_pref',
+  type: chrome.settingsPrivate.PrefType.BOOLEAN,
+  values: [true, false, true],
+}, {
+  key: 'browser.enable_flash',
+  type: chrome.settingsPrivate.PrefType.BOOLEAN,
+  values: [false, true, false],
+}, {
+  key: 'browser.enable_html5',
+  type: chrome.settingsPrivate.PrefType.BOOLEAN,
+  values: [true, false, false],
+}, {
+  key: 'device.overclock',
+  type: chrome.settingsPrivate.PrefType.NUMBER,
+  values: [0, .2, .6],
+}, {
+  key: 'browser.on.startup.homepage',
+  type: chrome.settingsPrivate.PrefType.STRING,
+  values: ['example.com', 'chromium.org', 'chrome.example.com'],
+}, {
+  key: 'profile.name',
+  type: chrome.settingsPrivate.PrefType.STRING,
+  values: ['Puppy', 'Puppy', 'Horsey'],
+}];