ViewActions.click()
ViewActions.typeText()
ViewActions.pressKey()
ViewActions.clearText()
ViewActions.swipeRight()
onView(withId(R.id.my_view)) // withId(R.id.my_view) is a ViewMatcher
.perform(click()) // click() is a ViewAction
.check(matches(isDisplayed())); // matches(isDisplayed()) is a ViewAssertion
onView(withId(R.id.editTextUserInput))
.perform(typeText(STRING_TO_BE_TYPED), closeSoftKeyboard());