WhitListSize: Custom Espresso Matcher which checks if a ListView has an specific size

WithListSize.kt

fun withListSize(size: Int): Matcher<View> {
    return object : TypeSafeMatcher<View>() {
        public override fun matchesSafely(view: View): Boolean {
            return (view as ListView).count == size
        }
        override fun describeTo(description: Description) {
            description.appendText("ListView should have $size items")
        }
    }
}