[Presentation API] Add browser tests for 1-UA mode

chrome/test/media_router/resources/common.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 Common APIs for presentation integration tests.
  *
  */
 
 var startSessionPromise = null;
 var startedConnection = null;
 var reconnectedSession = null;
 var presentationUrl = null;
-if (window.location.href.indexOf('__is_android__=true') >= 0) {
+var pageUrl = window.location.href;
+
+if (pageUrl.indexOf('__is_android__=true') >= 0) {
   // For android, "google.com/cast" is required in presentation URL.
   // TODO(zqzhang): this requirement may be removed in the future.
   presentationUrl = "https://google.com/cast#__castAppId__=CCCCCCCC/";
+} else if (pageUrl.indexOf('__oneUA__=true') >= 0) {
+  presentationUrl =
+      "presentation_receiver.html#__testprovider__=true&__oneUA__=true";
+} else if (pageUrl.indexOf('__oneUANoReceiver__=true') >= 0) {
+  presentationUrl = "https://www.google.com#__testprovider__=true&__oneUA__=true";
 } else {
   presentationUrl = "http://www.google.com/#__testprovider__=true";
 }
+
 var startSessionRequest = new PresentationRequest([presentationUrl]);
 var defaultRequestSessionId = null;
 var lastExecutionResult = null;
 var useDomAutomationController = !!window.domAutomationController;
 
 window.navigator.presentation.defaultRequest = startSessionRequest;
 window.navigator.presentation.defaultRequest.onconnectionavailable = function(e)
 {
   defaultRequestSessionId = e.connection.id;
 };
@@ skipping 174 matching lines @@
 
 /**
  * Sends the given message, and expects response from the receiver.
  * @param {!string} message
  */
 function sendMessageAndExpectResponse(message) {
   if (!startedConnection) {
     sendResult(false, 'startedConnection does not exist.');
     return;
   }
-  startedConnection.onmessage = function(receivedMessage) {
-    var expectedResponse = 'Pong: ' + message;
-    var actualResponse = receivedMessage.data;
-    if (actualResponse != expectedResponse) {
-      sendResult(false, 'Expected message: ' + expectedResponse +
-          ', but got: ' + actualResponse);
-      return;
-    }
-    sendResult(true, '');
-  };
+  if (message == 'close') {

[imcheng, 2017/04/17 19:06:44]

This is an indirect way to tell presentation_receiver.html to close its
connection, and this message isn't understood by the test mrp, IIRC. I would at
least extract this into its own function (initiateCloseFromReceiverPage).
Another way would be to locate the WebContents hosting the receiver page in the
browser test and execute a JS script to close connection.

[zhaobin, 2017/04/17 21:24:07]

Done.

+    startedConnection.onclose = function(event) {
+      var reason = event.reason;
+      if (reason != 'closed') {
+        sendResult(false, 'Unexpected close reason: ' + reason);
+        return;
+      }
+      sendResult(true, '');
+    };
+  } else {
+    startedConnection.onmessage = function(receivedMessage) {
+      var expectedResponse = 'Pong: ' + message;
+      var actualResponse = receivedMessage.data;
+      if (actualResponse != expectedResponse) {
+        sendResult(false, 'Expected message: ' + expectedResponse +
+            ', but got: ' + actualResponse);
+        return;
+      }
+      sendResult(true, '');
+    };
+  }
   startedConnection.send(message);
 }
 
 /**
  * Reconnects to |sessionId| and verifies that it succeeds.
  * @param {!string} sessionId ID of session to reconnect.
  */
 function reconnectSession(sessionId) {
   var reconnectSessionRequest = new PresentationRequest(presentationUrl);
   reconnectSessionRequest.reconnect(sessionId).then(function(session) {
@@ skipping 40 matching lines @@
       passed: passed,
       errorMessage: errorMessage
     }));
   } else {
     lastExecutionResult = JSON.stringify({
       passed: passed,
       errorMessage: errorMessage
     });
   }
 }