list.set(0, (int) 2);
    assertThat(array).isEqualTo(new int[] {(int) 2, (int) 1});
    array[1] = (int) 3;
    assertThat(list).containsExactly((int) 2, (int) 3).inOrder();
  }

  public void testAsList_toArray_roundTrip() {
    int[] array = {(int) 0, (int) 1, (int) 2};
    List<Integer> list = Ints.asList(array);
    int[] newArray = Ints.toArray(list);

    // Make sure it returned a copy
    list.set(0, (int) 4);

    list.set(0, 2.0f);
    assertThat(array).isEqualTo(new float[] {2.0f, 1.0f});
    array[1] = 3.0f;
    assertThat(list).containsExactly(2.0f, 3.0f).inOrder();
  }

  public void testAsList_toArray_roundTrip() {
    float[] array = {0.0f, 1.0f, 2.0f};
    List<Float> list = Floats.asList(array);
    float[] newArray = Floats.toArray(list);

    // Make sure it returned a copy
    list.set(0, 4.0f);