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

  public void testEmptyArrayToEmpty() {
    doTestNewArrayEquals(new Object[0], 0);
  }

  public void testEmptyArrayToNonEmpty() {
    checkArrayEquals(new Long[5], ObjectArrays.newArray(new Long[0], 5));
  }

  public void testNonEmptyToShorter() {