@Test
@SuppressWarnings("unlikely-arg-type")
public void testFullHalfPairEqualsDifferentClass() {

    // set up
    FullHalfPair FullHalfPair = new FullHalfPair("ａ", "a");
    String str = "a";
    // assert
    assertThat(FullHalfPair.equals(str), is(false));
}