@Test
public void shouldCompareTwoPlusInfinitiesAsEqual() {

    // given
    RangeBoundary<Integer> boundaryA = new RangeBoundary<Integer>(null);
    RangeBoundary<Integer> boundaryB = new RangeBoundary<Integer>(null);
    // then
    assertThat(boundaryA.compareTo(boundaryB)).isEqualTo(0);
}