equalTo(new long[]{7, 8, 42}));
assertThat(LongIterators.unwrap(set.iterator(7)),
equalTo(new long[]{8, 42}));
assertThat(set.headSet(42).toLongArray(),
equalTo(new long[]{2, 7, 8}));
assertThat(set.tailSet(7).toLongArray(),
equalTo(new long[]{7, 8, 42}));
}
@Test
public void testMaskEmpty() {