如何使用androidespresso测试设置textview的可见性

试试这个,

public class MainActivityInstrumentationTest {

    @Rule
    public ActivityTestRule activityTestRule = new ActivityTestRule<>(MainActivity.class);

    @Test
    public void validateEditText() {

        onView(withId(R.id.out)).perform(setTextViewVisibitity(true));

        // Just for viewing the results. Remove after use.
        try {
            Thread.sleep(2000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        onView(withId(R.id.out)).perform(setTextViewVisibitity(false));

        // Just for viewing the results. Remove after use.
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    private static ViewAction setTextViewVisibitity(final boolean value) {
        return new ViewAction() {

            @Override
            public Matcher getConstraints() {
                return isAssignableFrom(TextView.class);
            }

            @Override
            public void perform(UiController uiController, View view) {
                view.setVisibility(value ? View.VISIBLE : View.GONE);
            }

            @Override
            public String getDescription() {
                return "Show / Hide View";
            }
        };
    }
}