Snackbar testing: the less crap version

SnackbarLessPain.kt

@Test
fun genericErrrorSnackbarShouldHaveExpectedText() {
    // Same setup as previous example - omitting
    // Simple tests same as previous example - omitting
    
    val snackbarLayout = snackbar.view
    
    // Now we can use standard findViewById
    val snackbarTextView = snackbarLayout.findViewById<TextView>(R.id.snackbar_text)
    assertThat(snackbarTextView).isNotNull()
    assertThat(snackbarTextView.text).isEqualTo("Oops, the speech didn't work!")
    
    // This Snackbar doesn't have an action. There should also be a test which 
    // asserts the below after show is called
    val snackbarAction = snackbarLayout.findViewById<Button>(R.id.snackbar_action)
    assertThat(snackbarAction).isNotNull()
    assertThat(snackbarAction.hasOnClickListeners()).isFalse()
    assertThat(snackbarAction.visibility).isEqualTo(View.GONE)
}