关于Android使用Instrumentation做功能测试的时候遇到的一个问题

最近在看测试方面的东西，看到官网上有一个使用Instrumentation做功能测试的例子，自己敲了敲，但是在自己的手机上就是测不过。

经过调试，我发现是我手机上的输入法把输入事件拦截了，需要多输入一些空格给输入法，让它来把字符填入EditText中才行。

这件事再次印证了android中事件传播的机制，keyevent先传递给当前上下文，然后分发给窗体实例，然后是输入法，接着发给父VIEW，一层层的发往焦点控件

　　　　　　　　　　　　　　　　　　　　　touchevent则是反过来的

下面是我的测试代码，有三个类，Lesson3,Lesson3start,lesson3test

Lesson3.java

package com.example.u3.testpractice;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;

/**
* Created by U3 on 2015/4/11.
*/
public class Lesson3 extends Activity  {
private final String exString = "hi, unit test";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.lesson3layout);
Button mButton = (Button)findViewById(R.id.bt_lesson3);
Button mButton2 = (Button)findViewById(R.id.bt_lesson3_2);
final EditText mEditText = (EditText)findViewById(R.id.et_edittext);
mButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent mIntent = new Intent(Lesson3.this,Lesson3start.class);
mIntent.putExtra("ExString",exString);
startActivity(mIntent);
finish();
}
});
mButton2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent mIntent = new Intent(Lesson3.this,Lesson3start.class);
final String msg  = mEditText.getText().toString();
mIntent.putExtra("ExString",msg);
startActivity(mIntent);
finish();
}
});

}
}
//该类代码很简单，不做过多说明

lesson3start.java

public class Lesson3start extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.lesson3layout);

TextView mTextView = (TextView)findViewById(R.id.tv_lesson3);
String exString = getIntent().getStringExtra("ExString");
mTextView.setText(exString);
}
}

下面是最关键的测试类代码，lesson3test2.java

public class Lesson3Test2 extends ActivityInstrumentationTestCase2<Lesson3> {
private Lesson3 lesson3test;
private  Lesson3start lesson3start;
private static final String TEXT_MSG1 = "hello receiver";
private static final String TEXT_MSG2 = "helloreceiver";
public Lesson3Test2() {
super(Lesson3.class);
}

@Override
protected void setUp() throws Exception {
super.setUp();
setActivityInitialTouchMode(true);//设置触摸模式
lesson3test = getActivity();//得到activity
}

public void testPrecondition() {
assertNotNull("Activity is not run", lesson3test);
}

public void testSendandRecive_Text() {
final Button mButton = (Button) lesson3test.findViewById(R.id.bt_lesson3_2);
final EditText mEditText = (EditText) lesson3test.findViewById(R.id.et_edittext);
Instrumentation.ActivityMonitor reciveMonitor = getInstrumentation().addMonitor(Lesson3start.class.getName(), null, false);//设置monitor检测activity
getInstrumentation().runOnMainSync(new Runnable() {
@Override
public void run() {
mEditText.requestFocus();//主线程获得焦点
}
});
getInstrumentation().waitForIdleSync();//等待主线程完成操作
getInstrumentation().sendStringSync(TEXT_MSG1+" ");//输入String
getInstrumentation().waitForIdleSync();//等待
TouchUtils.clickView(this,mButton);//模拟点击按钮
lesson3start = (Lesson3start)reciveMonitor.waitForActivityWithTimeout(1000);
assertNotNull("not start activity",lesson3start);
assertEquals("moniter not hit",1,reciveMonitor.getHits());
assertEquals("wrong class to start",Lesson3start.class,lesson3start.getClass());
final TextView testText = (TextView)lesson3start.findViewById(R.id.tv_lesson3);

assertEquals("wrong text to send",TEXT_MSG2,testText.getText());//测试结果
}

}