如何检查是否未显示弹出通知。浓咖啡-解网

问：

我有弹出通知。我的第一个测试检查该通知是否显示并成功通过。我使用下一个方法进行此测试：

fun viewInNotificationPopupIsDisplayed(viewMatcher: Matcher<View>) {
    onView(viewMatcher)
        .inRoot(RootMatchers.isPlatformPopup())
        .check(ViewAssertions.matches(isDisplayed()))
}

我在第二个测试用例中遇到了问题，我必须检查我的弹出通知是否已经消失（意味着它不再显示）。所以我正在尝试使用下一个方法：

    fun viewInNotificationPopupIsNotDisplayed(viewMatcher: Matcher<View>) {
        Espresso.onView(viewMatcher)
            .inRoot(RootMatchers.isPlatformPopup())
            .check(matches(not(isDisplayed())))
          //.check(ViewAssertions.doesNotExist())  // doesn't work as well
    }

我得到下一个例外：

android.support.test.espresso.NoMatchingRootException: 
Matcher 'with decor view of type PopupWindow$PopupViewContainer' 
did not match any of the following roots: 
[Root{application-window-token=android.view.ViewRootImpl$W@bb8371e,
 window-token=android.view.ViewRootImpl$W@bb8371e, has-window-focus=true,

拜托，有人能帮忙吗？

Kotlin Android-espresso

val device: UiDevice
   get() = UiDevice.getInstance(InstrumentationRegistry.getInstrumentation())

fun assertPopupIsNotDisplayed() {
    device.waitForIdle()
    assertFalse(device.hasObject(By.text(yourText))))
}

fun assertPopupIsDisplayed() {
    device.waitForIdle()
    assertTrue(device.hasObject(By.text(yourText))))
}

如何检查是否未显示弹出通知。浓咖啡

How to check that popup notification is NOT displayed. Espresso

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