public void testAppendOneElement() {
    String[] result = ObjectArrays.concat(new String[] {"foo"}, "bar");
    assertThat(result).asList().containsExactly("foo", "bar").inOrder();
  }

  public void testAppendTwoElements() {
    String[] result = ObjectArrays.concat(new String[] {"foo", "bar"}, "baz");
    assertThat(result).asList().containsExactly("foo", "bar", "baz").inOrder();
  }

  public void testEmptyArrayToEmpty() {