Espresso checkbox is checked

Question

I am new to Espresso and I have this problem: How can I check if some checkBox is checked? I create a matcher from checkbox and I click on it by espresso.

I read some tutorial about use getInstrumentation() but I only can use InstrumentationRegistry.getInstrumentation() and it doesnt work.

In general, how can I create real widget such as Button, CheckBox etc. from Matcher object?

Thanks for help.

Answer 1

After click you can check that checkbox is checked with such expression:

onView(withId(R.id.checkbox)).check(matches(isChecked()));