Android - 如何使用 Espresso 单击抽屉导航上的项目？

Question

我是 Android 开发新手。我想使用 Espresso 来测试我的抽屉是否打开，然后单击一个项目并检查它是否打开了一个新 Activity 。我一直在寻找这方面的例子，但一直没有成功。

Answer 1

@Test
public void clickOnYourNavigationItem_ShowsYourScreen() {
    // Open Drawer to click on navigation.
    onView(withId(R.id.drawer_layout))
        .check(matches(isClosed(Gravity.LEFT))) // Left Drawer should be closed.
        .perform(DrawerActions.open()); // Open Drawer

    // Start the screen of your activity.
    onView(withId(R.id.nav_view))
        .perform(NavigationViewActions.navigateTo(R.id.your_navigation_menu_item));

    // Check that you Activity was opened.
    String expectedNoStatisticsText = InstrumentationRegistry.getTargetContext()
        .getString(R.string.no_item_available);
    onView(withId(R.id.no_statistics)).check(matches(withText(expectedNoStatisticsText)));
}

这正是您要寻找的。

其他示例可用here或 here