android Espresso- toast message assertions not working with sdk 30

user_1547682 0
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this simple check is working on sdk 29 but not on sdk 30:

onView(withText(R.string.text)).inRoot( withDecorView(not(mActivityRule.activity.window.decorView))) .check(matches(isDisplayed()))

I get androidx.test.espresso.NoMatchingRootException.

can anyone help with this issue?

android-espresso android-toast assertion matcher android
2 Answers

Espresso can't reliably assert toast messages. Use uiAutomator alongwith espresso for asserting toasts.

    fun checkToast(msg: String) {
        val uiDevice = UiDevice.getInstance(InstrumentationRegistry.getInstrumentation())
        uiDevice.waitForIdle()
        org.junit.Assert.assertTrue(uiDevice.hasObject(By.text(msg)))
    }
user_66715720

Accourding to the comments for this issue in github. You can see that toast matching in sdk 30 is not working with anybody

user_8485790
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