Espresso - 如何执行 OR ( || ) 检查？

Question

I need only one of these two espresso checks to pass. How can I achieve this? If either of these ViewAssertion s pass, I will be happy.

    onView(withId(R.id.mainview))
            .check(

                    matches(not(isDisplayed()))
            )

or

    onView(withId(R.id.mainview))
            .check(

                    doesNotExist()
            )

Answer 1

This isn't the best method but it'll work. Ideally you should use a custom view matcher... but we're all lazy.

try {
  // See if view is displayed
  onView(withId(R.id.mainview))
          .check(
                  matches(not(isDisplayed()))
          );
}
catch (NoMatchingViewException e){
  // Otherwise check it doesn't exist
  onView(withId(R.id.mainview))
          .check(
                  doesNotExist()
          );
}

Answer 2

我认为您唯一的选择是自定义匹配器。