Press delete (backspace) in EditText with espresso

Issue

I writing a test case in espresso that requires performing a delete (backspace). The code I came up is like this

onView(withId(R.id.testNumberEditText))
            .perform(replaceText("123"))
            .perform(pressKey(KeyEvent.KEYCODE_DEL))
            .check { view, _ ->
                assertEquals("12", (view as EditText).text.toString())
            }

But this code doesn't work and the text is still 123. Any idea what I'm doing wrong on what key should I press to get the desired outcome?

Solution

Change your code to this :

onView(withId(R.id.etTesting))
                .perform(replaceText("123"))
                .perform(click())
                .perform(pressKey(KeyEvent.KEYCODE_DEL))
                .check(matches(withText("12")));

Answered By - Skizo-ozᴉʞS