Native Messaging!

chrome/test/data/extensions/api_test/native_messaging/test.js

+// Copyright (c) 2012 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.
+
+chrome.test.getConfig(function(config) {
+    chrome.test.runTests([
+
+      function sendMessageWithCallback() {
+        var message = {"text": "Hi there!", "number": 3};
+        chrome.extension.sendNativeMessage(
+            'echo.py', message,
+            chrome.test.callbackPass(function(nativeResponse) {
+          var expectedResponse = {"id": 1, "echo": message};
+          chrome.test.assertEq(expectedResponse, nativeResponse);
+        }));
+      },
+
+      // The goal of this test, is just not to crash.
+      function sendMessageWithoutCallback() {
+        var message = {"text": "Hi there!", "number": 3};
+        chrome.extension.sendNativeMessage('echo.py', message);
+        chrome.test.succeed(); // Mission Complete
+      },
+
+      function connect() {
+        var messagesToSend = [{"text": "foo"},
+                              {"text": "bar", "funCount": 9001},
+                              {}];
+        var expectedResponses = [{"id": 1, "echo": messagesToSend[0]},
+                                 {"id": 2, "echo": messagesToSend[1]},
+                                 {"id": 3, "echo": messagesToSend[2]}];
+        var currentMessage = 0;
+
+        port = chrome.extension.connectNative('echo.py',
+                                              messagesToSend[currentMessage]);
+        port.onMessage.addListener(function(message) {
+          chrome.test.assertEq(expectedResponses[currentMessage], message);
+          currentMessage++;
+
+          if (currentMessage == expectedResponses.length)
+            chrome.test.notifyPass();
+          else
+            port.postMessage(messagesToSend[currentMessage]);
+        });
+      }
+    ]);
+});