androidx.test.espresso.screenshot.captureToBitmap with 3.6.x

Question

Starting with Android Espresso libs 3.6.0 the captureToBitmap was changed

Previous with 3.5.x:

fun ViewInteraction.captureToBitmap(): Bitmap {

using it

onView(isRoot()).captureToBitmap().writeToTestStorage("${javaClass.simpleName}_${nameRule.methodName}-open")

Now in 3.6.x

I only found

class CaptureToBitmapAction(val bitmapReceiver: ViewActions.BitmapReceiver) : ViewAction {

So I tried

class BitmapReceiver(name: String) : ViewActions.BitmapReceiver {
    override fun onBitmapCaptured(bitmap: Bitmap?) {
        TODO("Not yet implemented")
    }
}

val receiver = BitmapReceiver("${javaClass.simpleName}_${nameRule.methodName}-open")
onView(isRoot()).perform(CaptureToBitmapAction(receiver))

But I don't know what to do in onBitmapCaptured The question is now, how to do an Espresso test screenshot with 3.6.x ?

Answer 1

I made it work. Instead of

onView(ViewMatchers.isRoot())
    .captureToBitmap()
    .writeToTestStorage("${javaClass.simpleName_${nameRule.methodName}")

I use now

onView(ViewMatchers.isRoot())
    .perform(captureToBitmap { bitmap: Bitmap -> bitmap.writeToTestStorage("${javaClass.simpleName}_${nameRule.methodName}") })