def test_validate_nodes_wrong_type(self):
"""
Nodes can only be expressed in tuples.
"""
self.assertFalse(validate_nodes([('id', '127.0.0.1', 1908, '0.1')]))
def test_validate_nodes_bad_node(self):
"""
A tuple of nodes is only valid is the nodes contained therein are also
valid.
"""
self.assertFalse(validate_nodes(((123, [127, 0, 0, 1], 1908, '0.1'))))
def test_validate_nodes(self):
"""
A tuple of zero or more nodes is valid.
"""
self.assertTrue(validate_nodes((('id', '127.0.0.1', 1908, '0.1'),)))
