@Test
public void testRemoveIntersecting_onePoint() {

    final List<SamplingPoint> clusterList = new ArrayList<>();
    addSamplePoint(111, 114, clusterList);
    final List<SamplingPoint> thinnedOutList = filter.apply(clusterList);
    assertNotNull(thinnedOutList);
    assertEquals(1, thinnedOutList.size());
}