Question

我想测试点击按钮时是否启动了第二个活动

public void testLanguaeSelect() {
    startActivity(activityLanguageIntent, null, null);
    TextView textViewTitleBarText = (TextView) getActivity().findViewById(R.id.titleBarText);
    assertEquals(textViewTitleBarText.getText(), "Sprache");
    final TextView textViewTextMiddle = (TextView) getActivity().findViewById(R.id.listItemTextMiddle);
    assertEquals(textViewTextMiddle.getText(), "Deutsch");

    ((RelativeLayout) textViewTextMiddle.getParent()).performClick();

    // check if intend is sent
    Intent startedActivityIntent = getStartedActivityIntent();
    assertNotNull(startedActivityIntent);

    // wait for mainactivity to be started
    ActivityMonitor mainActivityMonitor = new Instrumentation.ActivityMonitor(MainActivity.class.getName(), null, false);
    getInstrumentation().addMonitor(mainActivityMonitor);
    Activity activity = mainActivityMonitor.waitForActivityWithTimeout(10000);

    assertNotNull("Activity was not started", activity);

}

onlclick功能

    @Override
    public void onClick(View v) {
        v.startAnimation(AnimationUtils.loadAnimation(v.getContext(), R.layout.animation_item_click));
        Intent intent = new Intent(v.getContext(), MainActivity.class);
        intent.putExtra("language", locale);
        v.getContext().startActivity(intent);
    }

Intend是正确的并且调用了onclick函数，但waitForMonitorWithTimeout总是在超时运行并返回null。

我的Android版本

<uses-sdk
    android:minSdkVersion="17"
    android:targetSdkVersion="21" />

Answer 1

MainActivity secondActivity = (MainActivity) getInstrumentation().waitForMonitorWithTimeout(monitor, 3);

上述答案方法中提到的参数3以毫秒为单位，而不是以秒为单位。因此，如果它是3，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。所以下面的方法比上面的方法更好用

MainActivity secondActivity = (MainActivity) getInstrumentation().waitForMonitorWithTimeout(monitor,10000);

参考： test if a button starts a new activity in android junit (pref without robotium)?

从Unittest开始第二个活动

1 个答案: