@Test
public void evenNumberOfParamsWorks() {

    map = Maps.of("a", "b", "c", "d", "e", "f");
    assertEquals(3, map.size());
    keys = map.keySet().iterator();
    assertEquals("a", keys.next());
    assertEquals("c", keys.next());
    assertEquals("e", keys.next());
    values = map.values().iterator();
    assertEquals("b", values.next());
    assertEquals("d", values.next());
    assertEquals("f", values.next());
}