Smart Lock: Add tests for the settings implementation.

Bug: 894305
Test: CrSettingsMultideviceSmartLockSubpageTest.*

R=khorimoto@chromium.org

Change-Id: Iecad14608d51137c35e9aa7875b0078ee41c541b
Reviewed-on: https://chromium-review.googlesource.com/c/1299604Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Commit-Queue: James Hawkins <jhawkins@chromium.org>
Cr-Commit-Position: refs/heads/master@{#603281}

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

@@ -1959,6 +1959,33 @@ TEST_F('CrSettingsMultidevicePageTest', 'All', function() {
   mocha.run();
 });
 
+/**
+ * Test fixture for the multidevice Smart Lock subpage.
+ * @constructor
+ * @extends {CrSettingsBrowserTest}
+ */
+function CrSettingsMultideviceSmartLockSubpageTest() {}
+
+CrSettingsMultideviceSmartLockSubpageTest.prototype = {
+  __proto__: CrSettingsBrowserTest.prototype,
+
+  /** @override */
+  browsePreload:
+      'chrome://settings/multidevice_page/multidevice_smartlock_subpage.html',
+
+  /** @override */
+  extraLibraries: CrSettingsBrowserTest.prototype.extraLibraries.concat([
+    '../test_browser_proxy.js',
+    'test_multidevice_browser_proxy.js',
+    'test_util.js',
+    'multidevice_smartlock_subpage_test.js',
+  ]),
+};
+
+TEST_F('CrSettingsMultideviceSmartLockSubpageTest', 'All', function() {
+  mocha.run();
+});
+
 /**
  * Test fixture for the multidevice settings subpage.
  * @constructor

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

@@ -47,11 +47,15 @@ cr.define('multidevice', function() {
         'getPageContentData',
         'setFeatureEnabledState',
         'setUpAndroidSms',
+        'getSmartLockSignInEnabled',
+        'setSmartLockSignInEnabled',
+        'getSmartLockSignInAllowed',
         'getAndroidSmsInfo',
       ]);
       this.data = createFakePageContentData(
           settings.MultiDeviceSettingsMode.NO_HOST_SET);
       this.androidSmsInfo = {origin: TEST_ANDROID_SMS_ORIGIN, enabled: true};
+      this.smartLockSignInAllowed = true;
     }
 
     /** @override */
@@ -81,6 +85,24 @@ cr.define('multidevice', function() {
       this.methodCalled('setUpAndroidSms');
     }
 
+    /** @override */
+    getSmartLockSignInEnabled() {
+      this.methodCalled('getSmartLockSignInEnabled');
+      return Promise.resolve(true);
+    }
+
+    /** @override */
+    setSmartLockSignInEnabled(enabled, opt_authToken) {
+      this.methodCalled('setSmartLockSignInEnabled', [enabled, opt_authToken]);
+      cr.webUIListenerCallback('smart-lock-signin-enabled-changed', enabled);
+    }
+
+    /** @override */
+    getSmartLockSignInAllowed() {
+      this.methodCalled('getSmartLockSignInAllowed');
+      return Promise.resolve(this.smartLockSignInAllowed);
+    }
+
     /** @override */
     getAndroidSmsInfo() {
       this.methodCalled('getAndroidSmsInfo');