Android 测试框架 performClick() 未启动 Activity

Question

我有一个 ActivityInstrumentationTestCase2，其中包含执行 Button.click() 的测试。 Button 应该启动另一个 Activity 来做一些工作。我认为 Button.performClick() 执行正确，但测试在执行其他 Activity 之前完成。

@UiThreadTest
public void test() {

    Intent i = new Intent(this.myActivity, MyActivity.class);
    myActivity.startActivity(i);    


    Button button = (Button) myActivity.findViewById(R.id.button);
    button.performClick();


}

我尝试了以下有效的方法，但我认为这与其说是一个好的解决方案，不如说是一种变通方法。

public void test() {

    Intent i = new Intent(this.myActivity, MyActivity.class);
    myActivity.startActivity(i);    


    Button button = (Button) myActivity.findViewById(R.id.button);
    button.performClick();

    try {
    Thread.sleep(50000);
    } catch (InterruptedException e) {
        Log.e("MyTest", e.getMessage());
    }


}

有没有更好的办法？

Answer 1

这是我的最终解决方案:

public void test() {

    Instrumentation instrumentation = getInstrumentation();

    // Prepare a monitor for your activity
    Instrumentation.ActivityMonitor monitor = instrumentation.addMonitor(MyActivity.class.getName(), null, false);

    // Start your activity manually
    Intent intent = new Intent(Intent.ACTION_MAIN);
    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    intent.setClassName(instrumentation.getTargetContext(), MyActivity.class.getName());
    instrumentation.startActivitySync(intent);

    Activity myActivity = getInstrumentation().waitForMonitor(monitor);

    Button upSend = (Button) myActivity.findViewById(R.id.button);
    upSend.performClick();

    Log.d("MyTest", "button clicked");

    //wait for SecondActivity to start (called by MyActivity)
    monitor = instrumentation.addMonitor(SecondActivity.class.getName(), null, false);
    Activity secondActivity = getInstrumentation().waitForMonitor(monitor);

    int count = 0;

    //wait until SecondActivity is finishing
    while(!secondActivity.isFinishing()) {

        Log.d("MyTest", "waiting - " + ++count);
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {

            Log.e("MyTest",e.getMessage());
        }
    }

}

再次感谢 Erik；现在第二个 Activity 通过按钮开始，测试正在等待它完成。