android - ActivityTestRule 和 IntentTestRule 有什么区别

Question

在探索测试时，我遇到了 ActivityTestRule 和 IntentTestRule，据我所知，IntentTestRule 是 ActivityTestRule 的扩展，用于 Espresso Intents。

但核心是使用这些测试规则的真正目的是什么。

Answer 1

The purpose is :

to initialize Espresso-Intents before each test annotated with @Test and releases Espresso-Intents after each test run. The following code snippet is an example of an IntentsTestRule:

@Rule
public IntentsTestRule<MyActivity> intentsTestRule =
        new IntentsTestRule<>(MyActivity.class);

Alternatively ,

you can use ActivityTestRule instead of IntentsTestRule and then in your @Before and @After manually call Intents.init() and Intents.release() respectively.

@Override
protected void afterActivityLaunched() {
    Intents.init();
    super.afterActivityLaunched();
}

@Override
protected void afterActivityFinished() {
    super.afterActivityFinished();
    Intents.release();
}

And the purpose of Espresso-intents is

to enable validation and stubbing of Intents sent out by the application under test. It’s like Mockito, but for Android Intents.