如何在浓缩咖啡测试中获得 Activity？

Question

我正在尝试使用 firebase ScreenShotter，其形式为：

ScreenShotter.takeScreenshot("main_screen_2", this /* activity */);

我不确定我应该如何从 Espresso 测试中获得 Activity。目前我的测试 class 看起来像：

@RunWith(AndroidJUnit4.class)
@LargeTest
public class OtherTests {
    @Rule
    // Replace 'MainActivity' with the value of android:name entry in
    // <activity> in AndroidManifest.xml
    public ActivityScenarioRule <MainActivity> mActivityRule = new ActivityScenarioRule<>(MainActivity.class);




    @Test
    public void getDeviceInfo() {

        try {
            Thread.sleep(7000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }


        TestHelper.tap("APP_HEADER");
        TestHelper.expect("TRUE_HOME_BUTTON",5000);
        ScreenShotter.takeScreenshot("main_screen_2", this /* activity */);
    }


}

Answer 1

根据sample app provided by Google（底部），您可以继承ActivityInstrumentationTestCase2并使用getActivity()方法。

但是，正如 here 所解释的那样，class 已被弃用，而 ActivityTestRule 也有 getActivity() 方法。

public void testExample() {
    // Take a screenshot when app becomes visible.
    onView(isRoot());
    ScreenShotter.takeScreenshot("main_screen_1", getActivity());
}

Answer 2

您必须获取 scenario 然后运行您在回调中的代码传递给 onActivity

    @Test
    public void getDeviceInfo() {
        ...
        mActivityRule.getScenario()
             .onActivity(activity -> ScreenShotter.takeScreenshot("main_screen_2", activity));
         
    }

如何在浓缩咖啡测试中获得 Activity？

How do I get Activity within an espresso test?

android

android-testing

android-espresso

firebase-test-lab