Extensions for Espresso Testing Library

EspressoExt.kt

fun setTextInTextView(value: String?): ViewAction {
    return object : ViewAction {
        override fun getConstraints(): Matcher<View> {
            return allOf(isDisplayed(), isAssignableFrom(TextView::class.java))
        }

        override fun perform(uiController: UiController?, view: View) {
            (view as TextView).text = value
        }

        override fun getDescription(): String {
            return "replace text"
        }
    }
}