@MediumTest
    @Test
    public void testSearchByGeocodeSpecialties() {
        final Geocache gcv2r9 = new CgeoApplicationTest().searchByGeocode("GCV2R9");
        assertThat(gcv2r9).isNotNull();
        assertThat(gcv2r9.getLocation()).isEqualTo("California, United States");

        final Geocache gc1zxez = new CgeoApplicationTest().searchByGeocode("GC1ZXEZ");
        assertThat(gc1zxez).isNotNull();
        assertThat(gc1zxez.getOwnerUserId()).isEqualTo("Ms.Marple/Mr.Stringer");
        assertThat(gc1zxez.getOwnerGuid()).isEqualTo("b66a625c-0266-43a7-9e7c-efecb9b2929a");
    }
Caches that are good test cases
main/src/androidTest/java/cgeo/geocaching/CgeoApplicationTest.java