@Test
public void testEquals() {

    CrossSpeciesPhenotypeMatcher emptyHumanOne = CrossSpeciesPhenotypeMatcher.of(Organism.HUMAN, Collections.emptyMap());
    CrossSpeciesPhenotypeMatcher emptyMouseOne = CrossSpeciesPhenotypeMatcher.of(Organism.MOUSE, Collections.emptyMap());
    CrossSpeciesPhenotypeMatcher emptyHumanTwo = CrossSpeciesPhenotypeMatcher.of(Organism.HUMAN, Collections.emptyMap());
    assertThat(emptyHumanOne, equalTo(emptyHumanTwo));
    assertThat(emptyHumanOne, not(equalTo(emptyMouseOne)));
}