Question

我已经阅读了AppEngine unit testing guidelines，我得到了Java数据存储区服务测试，但我对Channel服务没有任何好运。该指南没有给出任何特定的通道测试示例，并且javadoc也没有太大帮助，但是我的IDE向我展示了一些似乎用于单元测试本地通道服务的类;我无法弄清楚如何使用它们。

有没有人有测试GAE频道服务的经验或示例？

Answer 1

以下对我有用：

import unittest

from google.appengine.api import channel
from google.appengine.ext import testbed


class TestCase(unittest.TestCase):

  def setUp(self):
    self.testbed = testbed.Testbed()
    self.testbed.activate()
    self.testbed.init_channel_stub()

  def test_send(self):
    channel_stub = self.testbed.get_stub('channel')
    token = channel.create_channel('ClientID1')
    channel_stub.connect_channel(token)
    channel.send_message('ClientID1', 'hello')
    channel_messages = channel_stub.get_channel_messages(token)
    channel_stub.clear_channel_messages(token)
    self.assertEquals(['hello'], channel_messages)


if __name__ == '__main__':
  unittest.main()

您还可以查看source code for the channel service stub。

Answer 2

Ivan提供了巧妙的Python示例，这是Java的解决方案。

这里是我们想要测试的代码

public class ClientChannelService {

    private ChannelService channelService = ChannelServiceFactory.getChannelService();

    public String createToken(){
        return channelService.createChannel(UUID.randomUUID().toString());
    }

    public void sendMessage(String token, String message){
        channelService.sendMessage(new ChannelMessage(token, message));
    }
}

首先，将appengine-testing.jar添加到类路径中：

<dependency>
   <groupId>com.google.appengine</groupId>
   <artifactId>appengine-testing</artifactId>
   <version>${appengine.version}</version>
   <scope>test</scope>
</dependency>

接下来，按如下方式创建测试。我在这里假设JUnit，但通常你可以自由使用任何测试框架，它对GAE无关紧要。

private ClientChannelService service;
private LocalServiceTestHelper helper = new LocalServiceTestHelper(
                                            new LocalChannelServiceTestConfig());
private ChannelManager channelManager;

@Before
public void setUp() {
    helper.setUp();
    channelManager = LocalChannelServiceTestConfig.getLocalChannelService()
                                                  .getChannelManager();
    service = new ClientChannelService();
}

@After
public void tearDown() {
    helper.tearDown();
}

@Test
public void testSendMessage() {
    String token = service.createToken();
    connectionId = channelManager.connectClient(token); //emulate client connection

    service.sendMessage(token, "message");

    String message = channelManager.getNextClientMessage(token, connectionId);
    assertEquals("message", message);
}

Answer 3

您是否在http://code.google.com/p/googleappengine/source/browse/trunk/java/src/main/com/google/appengine/tools/development/testing/LocalChannelServiceTestConfig.java?r=182

看到了示例

对于之前的帖子感到抱歉，我意识到你没有做到能力......

如何对AppEngine频道服务进行单元测试？

3 个答案: