def test_basic(self):
a = TypedList(types=(str,), null=True)
a.append("foo")
self.assertRaises(TypeError, a.append, 2)
a.insert(1, "foo2")
self.assertEquals(a[1], "foo2")
self.assertRaises(TypeError, a.insert, 0, 2)
a.extend(["foo3", "foo4"])
self.assertEquals(len(a), 4)
self.assertEquals(a[3], "foo4")
self.assertRaises(TypeError, a.extend, ["foo", 2])
a[0]='foo'
self.assertRaises(TypeError, a.__setitem__, 0, 2)
a[0:2] = ['foo', 'foo2']
self.assertRaises(TypeError, a.__setitem__, slice(0, 2), ['f', 3])
