@Test
 public void testCopyOfIterableString() throws Exception {
   Map<String, String> map = ImmutableMap.of("foo", "bar", "dee", "dum");
   List<String> input = ImmutableList.of("foo=bar", "dee=dum");
   TagList tags = BasicTagList.copyOf(input);
   assertEquals(tags.asMap(), map);
 }
 @Test
 public void testOf() throws Exception {
   BasicTagList expected = BasicTagList.copyOf(ImmutableMap.of("foo", "bar", "id", "1"));
   BasicTagList of = BasicTagList.of("foo", "bar", "id", "1");
   assertEquals(of, expected);
 }