AppNavigationTest.java 文件源码

/**
 * A customized {@link Matcher} for testing that
 * if one color match the background color of current view.
 * @param backgroundColor A color int value.
 *
 * @return Match or not.
 */
public static Matcher<View> withBackgroundColor(final int backgroundColor) {
    return new TypeSafeMatcher<View>() {

        @Override
        public boolean matchesSafely(View view) {
            int color = ((ColorDrawable) view.getBackground().getCurrent()).getColor();
            return color == backgroundColor;
        }

        @Override
        public void describeTo(Description description) {
            description.appendText("with background color value: " + backgroundColor);
        }
    };
}