def test_previous_set(self):
'''
Test for setter.
1. Should set an instance of Node.
'''
test_node = node.Node()
another_node = node.Node()
test_node.previous = another_node
self.assertEquals(test_node.previous, another_node)
def test_next_set(self):
'''
Test for setter.
1. Should set an instance of Node.
'''
test_node = node.Node()
another_node = node.Node()
test_node.next = another_node
self.assertEquals(test_node.next, another_node)
def test_next_set_as_none(self):
'''
Test for setter.
1. next should be able to set as None, even if there is
already another value.
'''
test_node = node.Node()
another_node = node.Node()
test_node.next = another_node
test_node.next = None
self.assertEqual(test_node.next, None)
def test_previous_set_as_none(self):
'''
Test for setter.
1. previous should be able to set as None, even if there is
already another value.
'''
test_node = node.Node()
another_node = node.Node()
test_node.previous = another_node
test_node.previous = None
self.assertEqual(test_node.previous, None)
def test_next_get(self):
'''
Test for getter.
1. Should return None (the instance hasn't been setted yet).
'''
test_node = node.Node()
self.assertEqual(test_node.next, None)
def test_value_get_can_be_Node(self):
'''
Test for getter
1. Data could be None
'''
test_node = node.Node()
self.assertEqual(test_node.data, None)
def test_next_set_non_instance_of_node_exception(self):
'''
Test for setter
1. should rise an exception if a non-node instance is
received.
'''
with self.assertRaises(TypeError):
test_node = node.Node()
test_node.next = 15
def test_init(self):
"""
Test that all base values are initialized properly
1. previous = None
2. next = None
3. data = None
"""
test_node = node.Node()
self.assertEqual(test_node.previous, None)
self.assertEqual(test_node.next, None)
self.assertEqual(test_node.data, None)
def test_value_get_can_be_object(self):
'''
Test for getter.
1. Data can be an instance of object
'''
test_node = node.Node()
test_node.data = "Alo!"
self.assertTrue(isinstance(test_node.data, object))
test_node.data = 15
self.assertTrue(isinstance(test_node.data, object))
test_node.data = {1: "alo"}
self.assertTrue(isinstance(test_node.data, object))
test_node.data = [
1,
]
self.assertTrue(isinstance(test_node.data, object))