ActiveDisplayScope

Scope which provides necessary data and useful routines for writing multi-display tests. It provides:

• DisplayId of currently active display.

• rootMatcher to obtain proper ViewInteraction in specific root. Root matcher shall always be used on ViewInteraction before performing view interactions or checking assertions. ActiveDisplayScope is supplied to a lambda when you introduce a scope with onDisplay routine.

Example

       private val secondary: OnDisplayContext = ...

       @Test
       fun testSomething() {
          ...
          onDisplay(secondary) {
              onView(withId(R.id.ttivi_some_button)).inRoot(rootMatcher)
                  .check(matches(isDisplayed()))
                  .perform(click())
          }
       }
    }