MD Settings: implement metrics reporting checkbox on desktop

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

+// Copyright 2016 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.
+
+/**
+ * @constructor
+ * @extends {TestBrowserProxy}
+ * @implements {settings.PrivacyPageBrowserProxy}
+ */
+function TestPrivacyPageBrowserProxy() {
+  settings.TestBrowserProxy.call(this, [
+    'getMetricsReporting',
+    'setMetricsReportingEnabled',
+  ]);
+}
+
+TestPrivacyPageBrowserProxy.prototype = {
+  __proto__: settings.TestBrowserProxy.prototype,
+
+  /** @type {!MetricsReporting} */
+  metricsReporting: {
+    enabled: true,
+    managed: true,
+  },
+
+  /** @override */
+  getMetricsReporting: function() {
+    this.methodCalled('getMetricsReporting');
+    return Promise.resolve(this.metricsReporting);
+  },
+
+  /** @override */
+  setMetricsReportingEnabled: function(enabled) {
+    this.methodCalled('setMetricsReportingEnabled', enabled);
+  },
+};
+
+suite('metrics reporting', function() {
+  /** @type {settings.TestPrivacyPageBrowserProxy} */
+  var testBrowserProxy;
+
+  /** @type {SettingsPrivacyPageElement} */
+  var page;
+
+  setup(function() {
+    testBrowserProxy = new TestPrivacyPageBrowserProxy();
+    settings.PrivacyPageBrowserProxyImpl.instance_ = testBrowserProxy;
+    PolymerTest.clearBody();
+    page = document.createElement('settings-privacy-page');
+  });
+
+  teardown(function() { page.remove(); });
+
+  test('changes to whether metrics reporting is enabled/managed', function() {
+    return testBrowserProxy.whenCalled('getMetricsReporting').then(function() {
+      Polymer.dom.flush();
+
+      var checkbox = page.$.metricsReportingCheckbox;
+      assertEquals(testBrowserProxy.metricsReporting.enabled, checkbox.checked);
+      var indicatorVisible = !!page.$$('#indicator');
+      assertEquals(testBrowserProxy.metricsReporting.managed, indicatorVisible);
+
+      var changedMetrics = {
+        enabled: !testBrowserProxy.metricsReporting.enabled,
+        managed: !testBrowserProxy.metricsReporting.managed,
+      };
+      cr.webUIListenerCallback('metrics-reporting-change', changedMetrics);
+      Polymer.dom.flush();
+
+      assertEquals(changedMetrics.enabled, checkbox.checked);
+      indicatorVisible = !!page.$$('#indicator');
+      assertEquals(changedMetrics.managed, indicatorVisible);
+
+      var toggled = !changedMetrics.enabled;
+
+      MockInteractions.tap(checkbox);
+      return testBrowserProxy.whenCalled('setMetricsReportingEnabled', toggled);
+    });
+  });
+});