Android的ServiceTestCase <myservice>可以将消息发送到我的服务吗?</myservice>

时间:2011-07-07 00:37:24

标签: android testing service message servicetestcase

我想用ServiceTestCase测试我的绑定服务。 测试包括绑定到MyBindServer和发送消息。 观察日志,您可以看到在调用onBind()时启动服务, 并且从testAHello()发送消息,但是,从不调用服务器的handleMessage()。

来自日志:

I/TestRunner( 2099): started: testAHello(com.inthinc.mybindserver.test.MyBindServerTest)
I/MyBindServerTest( 2099): setUp()
I/MyBindServer( 2099): onBind, action=com.inthinc.mybindserver.START
I/MyBindServerTest( 2099): testAHello
I/MyBindServerTest( 2099): sending SAY_HELLO
[here is where I expect to see the output from handleMessage()]
I/MyBindServerTest( 2099): tearDown()
I/TestRunner( 2099): finished:testAHello(com.inthinc.mybindserver.test.MyBindServerTest)
I/TestRunner( 2099): passed: testAHello(com.inthinc.mybindserver.test.MyBindServerTest)

以下是MyBindServer.java的代码:

package com.inthinc.mybindserver;

import android.app.Service;
import android.content.Intent;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.os.Messenger;
import android.util.Log;

public class MyBindServer extends Service {
    static final String TAG = "MyBindServer";
    public static final int MSG_SAY_HELLO = 1;
    final Messenger mMessenger = new Messenger(new IncomingHandler());

    class IncomingHandler extends Handler {
        @Override
        public void handleMessage(Message msg) {
            Log.i(TAG, String.format("handleMessage, what=%d", msg.what));
            switch (msg.what) {
                case MSG_SAY_HELLO:
                    Log.i(TAG, "hello");
                    break;
                default:
                    super.handleMessage(msg);
            }
        }
    }

    @Override
    public IBinder onBind(Intent intent) {
        Log.i(TAG, String.format("onBind, action=%s", intent.getAction()));
        return mMessenger.getBinder();
    }

}

以下是MyBindServerTest.java的代码:

package com.inthinc.mybindserver.test;

import com.inthinc.mybindserver.MyBindServer;

import android.content.Intent;
import android.os.IBinder;
import android.os.Message;
import android.os.Messenger;
import android.os.RemoteException;
import android.test.ServiceTestCase;
import android.test.suitebuilder.annotation.SmallTest;
import android.util.Log;

public class MyBindServerTest extends ServiceTestCase<MyBindServer> {
    private static final String TAG = "MyBindServerTest";
    Messenger mServer = null;

    public MyBindServerTest() {
        super(MyBindServer.class);
    }

    public MyBindServerTest(Class<MyBindServer> serviceClass) {
        super(serviceClass);
    }

    @Override
    public void setUp() {
        try {
            super.setUp();
            Log.i(TAG, "setUp()");
            Intent bindIntent = new Intent("com.inthinc.mybindserver.START");
            IBinder binder = bindService(bindIntent);
            assertNotNull(binder);
            mServer = new Messenger(binder);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    @Override
    public void tearDown() {
        try {
            super.tearDown();
            Log.i(TAG, "tearDown()");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    @SmallTest
    public void testAHello() {
        Log.i(TAG, "testAHello");
        assertNotNull(mServer);
        Message msg = Message.obtain(null, MyBindServer.MSG_SAY_HELLO);
        Log.i(TAG, "sending SAY_HELLO");
        try {
            mServer.send(msg);
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }

}

1 个答案:

答案 0 :(得分:3)

我能够使用下面的过程让这个工作。如果这是不正确的话,欢迎任何人加入,但上面的例子工作(即MyBindServer的处理程序接收消息)

似乎ServiceTestCase的bindService()方法就像本地服务一样。在这种情况下,目标是作为一个单独的进程进行测试,这意味着使用以下代替ServiceTestCase的bindService:

Intent bindIntent = new Intent(<registered intent>); //Where registered intent is declared in the manifest file
getContext().bindService(bindIntent,mConn,Context.BIND_AUTO_CREATE);

其中mConn是一个ServiceConnection对象,用于执行测试所需的任何操作,在上面的例子中,设置mServer。

通过上述内容,MyBindServer的handleMessage()被调用用于testAHello()测试。

更新:我注意到,根据测试处理的完成速度,可以在绑定准备好之前调用teardown()。在上面的情况下,添加控制变量以根据mConn的onServiceConnected调用程序流,调用提供一致的结果。

E.g。

protected boolean bound = false;
protected boolean processed = false;
private ServiceConnection mConnection = new ServiceConnection() {
    public void onServiceConnected(ComponentName className,
            IBinder service) {
        Log.i(TAG,"Service conn");

        mServer = new Messenger(service);
        if(mServer != null
                && mServer != null){
            bound = true;
        }
        processed = true;
    }

@Override
public void onServiceDisconnected(ComponentName name) {
    // TODO Auto-generated method stub
    Log.i(TAG,"Service Disconn");
}
};

然后添加:

while(!processed){      
try {
   Thread.sleep(1000);
   } catch (InterruptedException e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
   }
}   

到testAHello()