mirror of
https://github.com/django/django.git
synced 2025-10-29 08:36:09 +00:00
393ddc10a7
While Node class has a useful `__str__`, its `__repr__` is not that useful. Added a `__repr__` that makes use of the current `__str__`. This is especially useful since the more popular `Q` class inherits `tree.Node`. Also created new tests that cover most of `Node` class functionality.
58 lines
1.9 KiB
Python
58 lines
1.9 KiB
Python
import copy
|
|
import unittest
|
|
|
|
from django.utils.tree import Node
|
|
|
|
|
|
class NodeTests(unittest.TestCase):
|
|
def setUp(self):
|
|
self.node1_children = [('a', 1), ('b', 2)]
|
|
self.node1 = Node(self.node1_children)
|
|
self.node2 = Node()
|
|
|
|
def test_str(self):
|
|
self.assertEqual(str(self.node1), "(DEFAULT: ('a', 1), ('b', 2))")
|
|
self.assertEqual(str(self.node2), "(DEFAULT: )")
|
|
|
|
def test_repr(self):
|
|
self.assertEqual(repr(self.node1),
|
|
"<Node: (DEFAULT: ('a', 1), ('b', 2))>")
|
|
self.assertEqual(repr(self.node2), "<Node: (DEFAULT: )>")
|
|
|
|
def test_len(self):
|
|
self.assertEqual(len(self.node1), 2)
|
|
self.assertEqual(len(self.node2), 0)
|
|
|
|
def test_bool(self):
|
|
self.assertTrue(self.node1)
|
|
self.assertFalse(self.node2)
|
|
|
|
def test_contains(self):
|
|
self.assertIn(('a', 1), self.node1)
|
|
self.assertNotIn(('a', 1), self.node2)
|
|
|
|
def test_add(self):
|
|
# start with the same children of node1 then add an item
|
|
node3 = Node(self.node1_children)
|
|
node3_added_child = ('c', 3)
|
|
# add() returns the added data
|
|
self.assertEqual(node3.add(node3_added_child, Node.default),
|
|
node3_added_child)
|
|
# we added exactly one item, len() should reflect that
|
|
self.assertEqual(len(self.node1) + 1, len(node3))
|
|
self.assertEqual(str(node3), "(DEFAULT: ('a', 1), ('b', 2), ('c', 3))")
|
|
|
|
def test_negate(self):
|
|
# negated is False by default
|
|
self.assertFalse(self.node1.negated)
|
|
self.node1.negate()
|
|
self.assertTrue(self.node1.negated)
|
|
self.node1.negate()
|
|
self.assertFalse(self.node1.negated)
|
|
|
|
def test_deepcopy(self):
|
|
node4 = copy.copy(self.node1)
|
|
node5 = copy.deepcopy(self.node1)
|
|
self.assertIs(self.node1.children, node4.children)
|
|
self.assertIsNot(self.node1.children, node5.children)
|