[MD settings] appearance browser tests

chrome/test/data/webui/settings/appearance_page_test.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 polymer appearance font settings elements. */

[dpapad, 2016/04/13 19:06:24]

Nit:
/** @fileoverview Tests for appearance font settings elements. */

+
+cr.define('settings_appearance', function() {
+  /**
+   * A test version of FontsBrowserProxy.
+   *
+   * @constructor
+   * @implements {settings.FontsBrowserProxy}
+   * @extends {settings.TestBrowserProxy}
+   */
+  var TestFontsBrowserProxy = function() {
+    settings.TestBrowserProxy.call(this, [
+      'fetchFontsData',
+      'observeAdvancedFontExtensionAvailable',
+    ]);
+
+    /** @private {!FontsData} */
+    this.fontsData_ = {
+      'fontList': [['font name', 'alternate', 'ltr']],

[dpapad, 2016/04/13 19:06:24]

Nit(optional): Object property names do not need quotes, for example
{hello: 'world'} is valid as is {'hello': 'world'}.

+      'encodingList': [['encoding name', 'alternate', 'ltr']],
+    };
+  };
+
+  TestFontsBrowserProxy.prototype = {
+    __proto__: settings.TestBrowserProxy.prototype,
+
+    /** @override */
+    fetchFontsData: function() {
+      this.methodCalled('fetchFontsData');
+      return Promise.resolve(this.fontsData_);
+    },
+
+    /** @override */
+    observeAdvancedFontExtensionAvailable: function() {
+      this.methodCalled('observeAdvancedFontExtensionAvailable');
+    },
+  };
+
+  function registerAppearanceFontSettingsBrowserTest() {
+    var fontsPage = null;
+
+    /** @type {?TestFontsBrowserProxy} */
+    var fontsBrowserProxy = null;
+
+    suite('AppearanceFontHandler', function() {
+      setup(function() {
+        fontsBrowserProxy = new TestFontsBrowserProxy();
+        settings.FontsBrowserProxyImpl.instance_ = fontsBrowserProxy;
+
+        PolymerTest.clearBody();
+
+        fontsPage = document.createElement('settings-appearance-fonts-page');
+        document.body.appendChild(fontsPage);
+      });
+
+      teardown(function() { fontsPage.remove(); });
+
+      test('fetchFontsData', function() {
+        return fontsBrowserProxy.whenCalled('fetchFontsData');
+      });
+    });
+  }
+
+  return {
+    registerTests: function() {
+      registerAppearanceFontSettingsBrowserTest();
+    },
+  };
+});