@Test public void getNegativeIndex() { assertThat(full.get(-1)).isNull(); }
@Test public void getTooLargeIndex() { assertThat(full.get(10)).isNull(); }
@Test public void getAllValuesCorrespondToArray() { Object[] array = full.toArray(); for (int i = 0; i < array.length; i++) { assertThat(full.get(i)).as("element " + i).isEqualTo(array[i]); } }