public void testFromArray() {
    assertEquals(
        ImmutableList.of("1", "2", "3", "4"),
        Lists.newArrayList(FluentIterable.from(new Object[] {"1", "2", "3", "4"})));
  }

  public void testOf_empty() {
    assertEquals(ImmutableList.of(), Lists.newArrayList(FluentIterable.of()));
  }

  // Exhaustive tests are in IteratorsTest. These are copied from IterablesTest.
  public void testConcatIterable() {