测试一个按钮是否在android junit(pref without robotium)中启动一个新活动？

Question

我找不到任何好的帮助.我只有几个按钮就有一个简单的活动,我需要测试它们是否重定向到正确的新页面(活动).

public void testButton() {
         button.requestFocus();
         button.performClick();

      }

除此之外,我真的不知道.这些教程对此非常无益:/

Answer 1

您需要ActivityMonitor,它可以帮助您在检测过程中监控新打开的活动,查看下面的伪代码:

public void testOpenNextActivity() {
  // register next activity that need to be monitored.
  ActivityMonitor activityMonitor = getInstrumentation().addMonitor(NextActivity.class.getName(), null, false);

  // open current activity.
  MyActivity myActivity = getActivity();
  final Button button = (Button) myActivity.findViewById(com.company.R.id.open_next_activity);
  myActivity.runOnUiThread(new Runnable() {
    @Override
    public void run() {
      // click button and open next activity.
      button.performClick();
    }
  });

  //Watch for the timeout
  //example values 5000 if in ms, or 5 if it's in seconds.
  NextActivity nextActivity = getInstrumentation().waitForMonitorWithTimeout(activityMonitor, 5000);
  // next activity is opened and captured.
  assertNotNull(nextActivity);
  nextActivity .finish();
}

Answer 2

NextActivity nextActivity = getInstrumentation().waitForMonitorWithTimeout(activityMonitor, 5);

上述答案方法中提到的参数5是以毫秒为单位,而不是以秒为单位.因此,如果它是5,有时测试用例会失败因为在5毫秒内它无法加载下一个活动.所以5000或10000毫秒肯定会更好.在文档中,他们在几秒钟内给出了它但事实上它是以毫秒为单位.因此,以下方法将比上述方法更好地工作.

NextActivity nextActivity = getInstrumentation().waitForMonitorWithTimeout(activityMonitor, 10000);