如何创建
Android JUnit测试用例来测试Activity中生成的Intent的内容？
我有一个包含EditText窗口的Activity,当用户输入完所需数据后,Activity会向IntentService启动一个Intent,它会记录数据并继续执行应用程序.这是我想要测试的类,OnEditorActionListener / PasscodeEditorListener是作为一个单独的类创建的：
public class PasscodeActivity extends BaseActivity {
EditText m_textEntry = null;
PasscodeEditorListener m_passcodeEditorListener = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.passcode_activity);
m_passcodeEditorListener = new PasscodeEditorListener();
m_textEntry = (EditText) findViewById(R.id.passcode_activity_edit_text);
m_textEntry.setTag(this);
m_textEntry.setonEditorActionListener(m_passcodeEditorListener);
}
@Override
protected void onPause() {
super.onPause();
/*
* If we're covered for any reason during the passcode entry,* exit the activity AND the application...
*/
Intent finishApp = new Intent(this,CoreService.class);
finishApp.setAction(AppConstants.INTENT_ACTION_ACTIVITY_REQUESTS_SERVICE_STOP);
startService(finishApp);
finish();
}
}
class PasscodeEditorListener implements OnEditorActionListener{
@Override
public boolean onEditorAction(TextView v,int actionId,KeyEvent event) {
PasscodeActivity activity = (PasscodeActivity) v.getTag();
boolean imeSaysGo = ((actionId & EditorInfo.IME_ACTION_DONE)!=0)?true:false;
boolean keycodeSaysGo = ((null != event) &&
(KeyEvent.ACTION_DOWN == event.getAction()) &&
(event.getKeyCode() == KeyEvent.KEYCODE_ENTER))?true:false;
if (imeSaysGo || keycodeSaysGo){
CharSequence seq = v.getText();
Intent guidEntry = new Intent(activity,CoreService.class);
guidEntry.setAction(AppConstants.INTENT_ACTION_PASSCODE_INPUT);
guidEntry.putExtra(AppConstants.EXTRA_KEY_GUID,seq.toString());
activity.startService(guidEntry);
return true;
}
return false;
}
}
如何拦截活动生成的两个可能的出站Intent并验证其内容？
谢谢
解决方法
我想到如何在另一个网站的帮助下使用Contextwrapper.
使用Contextwrapper并覆盖所有intent函数.对我的所有Activity测试进行推广,我扩展了ActivityUnitTestCase类并将解决方案实现为垫片.请享用：
import android.app.Activity;
import android.app.Instrumentation;
import android.content.ComponentName;
import android.content.Context;
import android.content.Contextwrapper;
import android.content.Intent;
import android.test.ActivityUnitTestCase;
public class IntentCatchingActivityUnitTestCase<T extends Activity> extends ActivityUnitTestCase<T> {
protected Activity m_activity;
protected Instrumentation m_inst;
protected Intent[] m_caughtIntents;
protected IntentCatchingContext m_contextwrapper;
protected class IntentCatchingContext extends Contextwrapper {
public IntentCatchingContext(Context base) {
super(base);
}
@Override
public ComponentName startService(Intent service) {
m_caughtIntents = new Intent[] { service };
return service.getComponent();
}
@Override
public void startActivities(Intent[] intents) {
m_caughtIntents = intents;
super.startActivities(intents);
}
@Override
public void startActivity(Intent intent) {
m_caughtIntents = new Intent[] { intent };
super.startActivity(intent);
}
@Override
public boolean stopService(Intent intent) {
m_caughtIntents = new Intent[] { intent };
return super.stopService(intent);
}
}
// --//
public IntentCatchingActivityUnitTestCase(Class<T> activityClass) {
super(activityClass);
}
protected void setUp() throws Exception {
super.setUp();
m_contextwrapper = new IntentCatchingContext(getInstrumentation().getTargetContext());
setActivityContext(m_contextwrapper);
startActivity(new Intent(),null,null);
m_inst = getInstrumentation();
m_activity = getActivity();
}
protected void tearDown() throws Exception {
super.tearDown();
}
}