@Test
public void testHead() throws Exception {
List<String> mList = new ArrayList<>();
mList.add("x");
mList.add("y");
mList.add("z");
mList.add("w");
ImmutableList<String> l = new ArrayBackedImmutableList<String>(mList);
Assert.assertEquals("[x]", l.head(1).toString());
Assert.assertEquals("[]", l.head(0).toString());
Assert.assertEquals("[x, y, z]", l.head(3).toString());
}
