如何使用单元测试来测试一个按钮,启动了正确的活动 [英] How to use unit testing to test that a button launches the correct Activity
问题描述
我想写一个单元测试,将测试如果一个按钮启动被点击时正确的活动,但我有麻烦找出正确的code使用。 该testButton方法不运行,通过测试,但它随后导致错误:
[2012-02-29十六点18分08秒 - TroubleShootingAppTest]试运行失败:仪器仪表运行失败,原因是java.lang.RuntimeException的
测试那么早结束。任何人都可以请指教一下正确的code应该是什么?
这是我有:
包com.integral.troubleshooter.test;
进口com.integral.troubleshooter.Question;
进口com.integral.troubleshooter.R;
进口com.integral.troubleshooter.TroubleShooterActivity;
进口android.app.Activity;
进口android.content.Intent;
进口android.test.ActivityInstrumentationTestCase2;
进口android.text.Layout;
进口android.view.View;
进口android.widget.Button;
进口android.widget.ImageView;
进口android.widget.Spinner;
进口android.widget.TextView;
公共类TroubleShooterActivityTest扩展
ActivityInstrumentationTestCase2< TroubleShooterActivity> {
私人TroubleShooterActivity mActivity;
私人按钮mButton;
私人TextView的mTextView;
私人ImageView的mImageView;
私人字符串资源字符串;
私人活动nextActivity;
公共TroubleShooterActivityTest(){
超(com.integral.troubleshooter.TroubleShooterActivity,TroubleShooterActivity.class);
}
/ *
*设定每个测试之前测试环境。
* @see android.test.ActivityInstrumentationTestCase2#设置()
* /
@覆盖
保护无效设置()抛出异常{
super.setUp();
setActivityInitialTouchMode(假);
mActivity = getActivity();
mButton =(按钮)mActivity.findViewById(R.id.troubleShooter);
mTextView =(TextView中)mActivity.findViewById(R.id.title);
mImageView =(ImageView的)mActivity.findViewById(R.id.IntegralLogo);
资源字符串= mActivity.getString(R.string.CustomerSupport);
}
公共无效测试preconditions(){
assertTrue(mTextView!= NULL);
assertTrue(mImageView!= NULL);
}
公共无效testText(){
的assertEquals(资源字符串(字符串)mTextView.getText());
}
公共无效testButton(){
mActivity.runOnUiThread(
新的Runnable(){
公共无效的run(){
mButton.performClick();
nextActivity = getActivity();
的assertEquals(nextActivity,Question.class);
}
}
);
}
}
试着检查仪器不是present。运行此命令会以项目的环境present仪器的清单:
$亚行外壳时列表仪器
我希望这帮助。
I am trying to write a unit test that will test if a button launches the correct activity when it is clicked, but I am having trouble figuring out the correct code to use. The testButton method does run and pass the tests, however it then causes an error:
[2012-02-29 16:18:08 - TroubleShootingAppTest] Test run failed: Instrumentation run failed due to 'java.lang.RuntimeException'
The testing then terminates early. Can anyone please advise what the correct code should be?
This is what I have:
package com.integral.troubleshooter.test;
import com.integral.troubleshooter.Question;
import com.integral.troubleshooter.R;
import com.integral.troubleshooter.TroubleShooterActivity;
import android.app.Activity;
import android.content.Intent;
import android.test.ActivityInstrumentationTestCase2;
import android.text.Layout;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Spinner;
import android.widget.TextView;
public class TroubleShooterActivityTest extends
ActivityInstrumentationTestCase2<TroubleShooterActivity> {
private TroubleShooterActivity mActivity;
private Button mButton;
private TextView mTextView;
private ImageView mImageView;
private String resourceString;
private Activity nextActivity;
public TroubleShooterActivityTest() {
super("com.integral.troubleshooter.TroubleShooterActivity", TroubleShooterActivity.class);
}
/*
* Sets up the test environment before each test.
* @see android.test.ActivityInstrumentationTestCase2#setUp()
*/
@Override
protected void setUp() throws Exception {
super.setUp();
setActivityInitialTouchMode(false);
mActivity = getActivity();
mButton = (Button)mActivity.findViewById(R.id.troubleShooter);
mTextView = (TextView)mActivity.findViewById(R.id.title);
mImageView = (ImageView)mActivity.findViewById(R.id.IntegralLogo);
resourceString = mActivity.getString(R.string.CustomerSupport);
}
public void testPreconditions() {
assertTrue(mTextView != null);
assertTrue(mImageView != null);
}
public void testText(){
assertEquals(resourceString,(String)mTextView.getText());
}
public void testButton(){
mActivity.runOnUiThread(
new Runnable() {
public void run() {
mButton.performClick();
nextActivity = getActivity();
assertEquals(nextActivity, Question.class);
}
}
);
}
}
Try to check if instrumentation is not present. Running this command will give a list of present instrumentation in your project environment:
$ adb shell pm list instrumentation
I hope this help.
这篇关于如何使用单元测试来测试一个按钮,启动了正确的活动的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!