@Test
    public void testIO() {
        User org = User.builder()
                .id(20L)
                .build();

        RecentRepositories recent1 = new RecentRepositories(getTargetContext(), org);
        long id = 1234;
        recent1.add(id);
        assertTrue(recent1.contains(id));
        recent1.save();
        RecentRepositories recent2 = new RecentRepositories(getTargetContext(), org);
        assertTrue(recent2.contains(id));
    }
Verify input/output to disk of {@link RecentRepositories} state
app/src/androidTest/java/com/github/pockethub/android/tests/repo/RecentRepositoriesTest.java