[Chromoting] Enable jscompile for browser tests.

remoting/webapp/browser_test/browser_test.js

 // Copyright 2014 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
- * @suppress {checkTypes}  By default, JSCompile is not run on test files.
- *    However, you can modify |remoting_webapp_files.gypi| locally to include
- *    the test in the package to expedite local development.  This suppress
- *    is here so that JSCompile won't complain.
  *
  * Provides basic functionality for JavaScript based browser test.
  *
  * To define a browser test, create a class under the browserTest namespace.
  * You can pass arbitrary object literals to the browser test from the C++ test
  * harness as the test data.  Each browser test class should implement the run
  * method.
  * For example:
  *
  * browserTest.My_Test = function() {};
@@ skipping 16 matching lines @@
  *
  * You will then invoke the test in C++ by calling:
  *
  *   RunJavaScriptTest(web_content, "My_Test", "{"
  *    "pin: '123123'"
  *  "}");
  */
 
 'use strict';
 
+/** @suppress {duplicate} */
 var browserTest = browserTest || {};
 
+/** @type {window.DomAutomationController} */
+browserTest.automationController_ = new window.DomAutomationController();
+
+/**
+ * @return {void}
+ * @suppress {checkTypes|checkVars|reportUnknownTypes}
+ */
 browserTest.init = function() {
   // The domAutomationController is used to communicate progress back to the
   // C++ calling code.  It will only exist if chrome is run with the flag
   // --dom-automation.  It is stubbed out here so that browser test can be run
   // under the regular app.
-  browserTest.automationController_ = window.domAutomationController || {
-    send: function(json) {
-      var result = JSON.parse(json);
-      if (result.succeeded) {
-        console.log('Test Passed.');
-      } else {
-        console.error('Test Failed.\n' +
-            result.error_message + '\n' + result.stack_trace);
+  if (window.domAutomationController) {
+    /** @type {window.DomAutomationController} */
+    browserTest.automationController_ = window.domAutomationController;
+  } else {
+    browserTest.automationController_ = {
+      send: function(json) {
+        var result = JSON.parse(json);
+        if (result.succeeded) {
+          console.log('Test Passed.');
+        } else {
+          console.error('Test Failed.\n' +
+              result.error_message + '\n' + result.stack_trace);
+        }
       }
-    }
+    };
   };
 };
 
 /**
  * Fails the C++ calling browser test with |message| if |expr| is false.
- * @param {boolean} expr
+ * @param {*} expr
  * @param {string} message
+ * @return {void}
  */
 browserTest.expect = function(expr, message) {
   if (!expr) {
     message = (message) ? '<' + message + '>' : '';
     browserTest.fail('Expectation failed.' + message);
   }
 };
 
+/**
+ * @param {string|Error} error
+ * @return {void}
+ */
 browserTest.fail = function(error) {
   var error_message = error;
   var stack_trace = base.debug.callstack();
 
   if (error instanceof Error) {
     error_message = error.toString();
     stack_trace = error.stack;
   }
 
+  console.error(error_message);
+
   // To run browserTest locally:
   // 1. Go to |remoting_webapp_files| and look for
   //    |remoting_webapp_js_browser_test_files| and uncomment it
   // 2. gclient runhooks
   // 3. rebuild the webapp
   // 4. Run it in the console browserTest.runTest(browserTest.MyTest, {});
   // 5. The line below will trap the test in the debugger in case of
   //    failure.
   debugger;
 
   browserTest.automationController_.send(JSON.stringify({
     succeeded: false,
     error_message: error_message,
     stack_trace: stack_trace
   }));
 };
 
+/**
+ * @return {void}
+ */
 browserTest.pass = function() {
   browserTest.automationController_.send(JSON.stringify({
     succeeded: true,
     error_message: '',
     stack_trace: ''
   }));
 };
 
+/**
+ * @param {string} id
+ * @return {void}
+ */
 browserTest.clickOnControl = function(id) {
   var element = document.getElementById(id);
   browserTest.expect(element, 'No such element: ' + id);
   element.click();
 };
 
+/**
+ * @param {remoting.AppMode} expectedMode
+ * @param {number=} opt_timeout
+ * @return {Promise}
+ */
 browserTest.onUIMode = function(expectedMode, opt_timeout) {
   if (expectedMode == remoting.currentMode) {
     // If the current mode is the same as the expected mode, return a fulfilled
     // promise.  For some reason, if we fulfill the promise in the same
     // callstack, V8 will assert at V8RecursionScope.h(66) with
     // ASSERT(!ScriptForbiddenScope::isScriptForbidden()).
     // To avoid the assert, execute the callback in a different callstack.
     return base.Promise.sleep(0);
   }
 
   return new Promise (function(fulfill, reject) {
     var uiModeChanged = remoting.testEvents.Names.uiModeChanged;
     var timerId = null;
 
     if (opt_timeout === undefined) {
       opt_timeout = browserTest.Timeout.DEFAULT;
     }
 
     function onTimeout() {
-      remoting.testEvents.removeEventListener(uiModeChanged, onUIModeChanged);
+      remoting.testEvents.removeEventListener(
+          uiModeChanged, /** @type {function(?=)} */ (onUIModeChanged));
       reject('Timeout waiting for ' + expectedMode);
     }
 
+    /** @param {remoting.AppMode} mode */
     function onUIModeChanged(mode) {
       if (mode == expectedMode) {
-        remoting.testEvents.removeEventListener(uiModeChanged, onUIModeChanged);
+        remoting.testEvents.removeEventListener(
+            uiModeChanged, /** @type {function(?=)} */ (onUIModeChanged));
         window.clearTimeout(timerId);
         timerId = null;
-        fulfill();
+        fulfill(true);
       }
     }
 
     if (opt_timeout != browserTest.Timeout.NONE) {
-      timerId = window.setTimeout(onTimeout, opt_timeout);
+      timerId = window.setTimeout(onTimeout,
+                                  /** @type {number} */ (opt_timeout));
     }
-    remoting.testEvents.addEventListener(uiModeChanged, onUIModeChanged);
+    remoting.testEvents.addEventListener(
+        uiModeChanged, /** @type {function(?=)} */ (onUIModeChanged));
   });
 };
 
+/**
+ * @return {Promise}
+ */
 browserTest.connectMe2Me = function() {
   var AppMode = remoting.AppMode;
   browserTest.clickOnControl('this-host-connect');
   return browserTest.onUIMode(AppMode.CLIENT_HOST_NEEDS_UPGRADE).then(
     function() {
       // On fulfilled.
       browserTest.clickOnControl('host-needs-update-connect-button');
     }, function() {
       // On time out.
       return Promise.resolve();
     }).then(function() {
       return browserTest.onUIMode(AppMode.CLIENT_PIN_PROMPT, 10000);
     });
 };
 
+/**
+ * @return {Promise}
+ */
 browserTest.disconnect = function() {
   var AppMode = remoting.AppMode;
   var finishedMode = AppMode.CLIENT_SESSION_FINISHED_ME2ME;
   var finishedButton = 'client-finished-me2me-button';
-  if (remoting.clientSession.getMode() == remoting.ClientSession.Mode.IT2ME) {
+  if (remoting.desktopConnectedView.getMode() ==
+      remoting.DesktopConnectedView.Mode.IT2ME) {
     finishedMode = AppMode.CLIENT_SESSION_FINISHED_IT2ME;
     finishedButton = 'client-finished-it2me-button';
   }
 
   remoting.disconnect();
 
   return browserTest.onUIMode(finishedMode).then(function() {
     browserTest.clickOnControl(finishedButton);
     return browserTest.onUIMode(AppMode.HOME);
   });
 };
 
+/**
+ * @param {string} pin
+ * @param {?boolean} opt_expectError
+ * @return {Promise}
+ */
 browserTest.enterPIN = function(pin, opt_expectError) {
   // Wait for 500ms before hitting the PIN button. From experiment, sometimes
   // the PIN prompt does not dismiss without the timeout.
   var CONNECT_PIN_WAIT = 500;
 
   document.getElementById('pin-entry').value = pin;
 
   return base.Promise.sleep(CONNECT_PIN_WAIT).then(function() {
     browserTest.clickOnControl('pin-connect-button');
   }).then(function() {
     if (opt_expectError) {
       return browserTest.expectConnectionError(
-          remoting.ClientSession.Mode.ME2ME,
+          remoting.DesktopConnectedView.Mode.ME2ME,
           remoting.Error.INVALID_ACCESS_CODE);
     } else {
       return browserTest.expectConnected();
     }
   });
 };
 
+/**
+ * @param {remoting.DesktopConnectedView.Mode} connectionMode
+ * @param {string} errorTag
+ * @return {Promise}
+ */
 browserTest.expectConnectionError = function(connectionMode, errorTag) {
   var AppMode = remoting.AppMode;
   var Timeout = browserTest.Timeout;
 
   var finishButton = 'client-finished-me2me-button';
   var failureMode = AppMode.CLIENT_CONNECT_FAILED_ME2ME;
 
-  if (connectionMode == remoting.ClientSession.Mode.IT2ME) {
+  if (connectionMode == remoting.DesktopConnectedView.Mode.IT2ME) {
     failureMode = AppMode.CLIENT_CONNECT_FAILED_IT2ME;
     finishButton = 'client-finished-it2me-button';
   }
 
   var onConnected = browserTest.onUIMode(AppMode.IN_SESSION, Timeout.NONE);
   var onFailure = browserTest.onUIMode(failureMode);
 
   onConnected = onConnected.then(function() {
     return Promise.reject(
         'Expected the connection to fail.');
   });
 
   onFailure = onFailure.then(function() {
+    /** @type {Element} */
     var errorDiv = document.getElementById('connect-error-message');
     var actual = errorDiv.innerText;
     var expected = l10n.getTranslationOrError(errorTag);
     browserTest.clickOnControl(finishButton);
 
     if (actual != expected) {
       return Promise.reject('Unexpected failure. actual:' + actual +
                      ' expected:' + expected);
     }
   });
 
   return Promise.race([onConnected, onFailure]);
 };
 
+/**
+ * @return {Promise}
+ */
 browserTest.expectConnected = function() {
   var AppMode = remoting.AppMode;
   // Timeout if the session is not connected within 30 seconds.
   var SESSION_CONNECTION_TIMEOUT = 30000;
   var onConnected = browserTest.onUIMode(AppMode.IN_SESSION,
                                          SESSION_CONNECTION_TIMEOUT);
   var onFailure = browserTest.onUIMode(AppMode.CLIENT_CONNECT_FAILED_ME2ME,
                                        browserTest.Timeout.NONE);
   onFailure = onFailure.then(function() {
     var errorDiv = document.getElementById('connect-error-message');
     var errorMsg = errorDiv.innerText;
     return Promise.reject('Unexpected error - ' + errorMsg);
   });
   return Promise.race([onConnected, onFailure]);
 };
 
+/**
+ * @param {base.EventSource} eventSource
+ * @param {string} event
+ * @param {number} timeoutMs
+ * @param {?string} opt_expectedData
+ * @return {Promise}
+ */
 browserTest.expectEvent = function(eventSource, event, timeoutMs,
                                    opt_expectedData) {
   return new Promise(function(fullfil, reject) {
+    /** @param {string=} actualData */
     var verifyEventParameters = function(actualData) {
       if (opt_expectedData === undefined || opt_expectedData === actualData) {
-        fullfil();
+        fullfil(true);
       } else {
         reject('Bad event data; expected ' + opt_expectedData +
                '; got ' + actualData);
       }
     };
     eventSource.addEventListener(event, verifyEventParameters);
     base.Promise.sleep(timeoutMs).then(function() {
       reject(Error('Event ' + event + ' not received after ' +
                    timeoutMs + 'ms.'));
     });
   });
 };
 
+/**
+ * @param {browserTest.TestableClass} testClass
+ * @param {*} data
+ * @return {void}
+ * @suppress {checkTypes|checkVars|reportUnknownTypes}
+ */
 browserTest.runTest = function(testClass, data) {
   try {
     var test = new testClass();
     browserTest.expect(typeof test.run == 'function');
     test.run(data);
-  } catch (e) {
+  } catch (/** @type {Error} */ e) {
     browserTest.fail(e);
   }
 };
 
+/**
+ * @param {string} newPin
+ * @return {Promise}
+ */
 browserTest.setupPIN = function(newPin) {
   var AppMode = remoting.AppMode;
   var HOST_SETUP_WAIT = 10000;
   var Timeout = browserTest.Timeout;
 
   return browserTest.onUIMode(AppMode.HOST_SETUP_ASK_PIN).then(function() {
     document.getElementById('daemon-pin-entry').value = newPin;
     document.getElementById('daemon-pin-confirm').value = newPin;
     browserTest.clickOnControl('daemon-pin-ok');
 
     var success = browserTest.onUIMode(AppMode.HOST_SETUP_DONE, Timeout.NONE);
     var failure = browserTest.onUIMode(AppMode.HOST_SETUP_ERROR, Timeout.NONE);
     failure = failure.then(function(){
       return Promise.reject('Unexpected host setup failure');
     });
     return Promise.race([success, failure]);
   }).then(function() {
     console.log('browserTest: PIN Setup is done.');
     browserTest.clickOnControl('host-config-done-dismiss');
 
     // On Linux, we restart the host after changing the PIN, need to sleep
     // for ten seconds before the host is ready for connection.
     return base.Promise.sleep(HOST_SETUP_WAIT);
   });
 };
 
+/**
+ * @return {Promise}
+ */
 browserTest.isLocalHostStarted = function() {
   return new Promise(function(resolve) {
     remoting.hostController.getLocalHostState(function(state) {
       resolve(remoting.HostController.State.STARTED == state);
     });
   });
 };
 
+/**
+ * @param {string} pin
+ * @return {Promise}
+ */
 browserTest.ensureHostStartedWithPIN = function(pin) {
   // Return if host is already
-  return browserTest.isLocalHostStarted().then(function(started){
-    if (!started) {
-      console.log('browserTest: Enabling remote connection.');
-      browserTest.clickOnControl('start-daemon');
-    } else {
-      console.log('browserTest: Changing the PIN of the host to: ' + pin + '.');
-      browserTest.clickOnControl('change-daemon-pin');
-    }
-    return browserTest.setupPIN(pin);
-  });
-};
-
-// Called by Browser Test in C++
-browserTest.ensureRemoteConnectionEnabled = function(pin) {
-  browserTest.ensureHostStartedWithPIN(pin).then(function(){
-    browserTest.automationController_.send(true);
-  }, function(errorMessage){
-    console.error(errorMessage);
-    browserTest.automationController_.send(false);
-  });
+  return browserTest.isLocalHostStarted().then(
+      /** @param {boolean} started */
+      function(started){
+        if (!started) {
+          console.log('browserTest: Enabling remote connection.');
+          browserTest.clickOnControl('start-daemon');
+        } else {
+          console.log('browserTest: Changing the PIN of the host to: ' +
+              pin + '.');
+          browserTest.clickOnControl('change-daemon-pin');
+        }
+        return browserTest.setupPIN(pin);
+      });
 };
 
 browserTest.init();