Matcher to assert that item is not in the adapter

withAdaptedData.java

    public static Matcher<View> withAdaptedData(final Matcher<Object> dataMatcher) {
        return new TypeSafeMatcher<View>() {

            @Override
            public void describeTo(Description description) {
                description.appendText("with class name: ");
                dataMatcher.describeTo(description);
            }

            @Override
            public boolean matchesSafely(View view) {
                if (!(view instanceof AdapterView)) {
                    return false;
                }
                @SuppressWarnings("rawtypes")
                Adapter adapter = ((AdapterView) view).getAdapter();
                for (int i = 0; i < adapter.getCount(); i++) {
                    if (dataMatcher.matches(adapter.getItem(i))) {
                        return true;
                    }
                }
                return false;
            }
        };
    }