158 lines
4.8 KiB
Python
158 lines
4.8 KiB
Python
"""
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Tests for stuff in django.utils.datastructures.
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"""
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import copy
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from django.test import SimpleTestCase
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from django.utils.datastructures import (
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DictWrapper, ImmutableList, MultiValueDict, MultiValueDictKeyError,
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OrderedSet,
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)
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class OrderedSetTests(SimpleTestCase):
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def test_bool(self):
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# Refs #23664
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s = OrderedSet()
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self.assertFalse(s)
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s.add(1)
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self.assertTrue(s)
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def test_len(self):
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s = OrderedSet()
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self.assertEqual(len(s), 0)
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s.add(1)
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s.add(2)
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s.add(2)
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self.assertEqual(len(s), 2)
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class MultiValueDictTests(SimpleTestCase):
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def test_multivaluedict(self):
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d = MultiValueDict({'name': ['Adrian', 'Simon'],
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'position': ['Developer']})
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self.assertEqual(d['name'], 'Simon')
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self.assertEqual(d.get('name'), 'Simon')
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self.assertEqual(d.getlist('name'), ['Adrian', 'Simon'])
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self.assertEqual(
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sorted(d.items()),
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[('name', 'Simon'), ('position', 'Developer')]
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)
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self.assertEqual(
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sorted(d.lists()),
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[('name', ['Adrian', 'Simon']), ('position', ['Developer'])]
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)
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with self.assertRaises(MultiValueDictKeyError) as cm:
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d.__getitem__('lastname')
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self.assertEqual(str(cm.exception), "'lastname'")
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self.assertIsNone(d.get('lastname'))
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self.assertEqual(d.get('lastname', 'nonexistent'), 'nonexistent')
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self.assertEqual(d.getlist('lastname'), [])
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self.assertEqual(d.getlist('doesnotexist', ['Adrian', 'Simon']),
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['Adrian', 'Simon'])
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d.setlist('lastname', ['Holovaty', 'Willison'])
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self.assertEqual(d.getlist('lastname'), ['Holovaty', 'Willison'])
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self.assertEqual(sorted(d.values()), ['Developer', 'Simon', 'Willison'])
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def test_appendlist(self):
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d = MultiValueDict()
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d.appendlist('name', 'Adrian')
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d.appendlist('name', 'Simon')
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self.assertEqual(d.getlist('name'), ['Adrian', 'Simon'])
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def test_copy(self):
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for copy_func in [copy.copy, lambda d: d.copy()]:
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d1 = MultiValueDict({
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"developers": ["Carl", "Fred"]
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})
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self.assertEqual(d1["developers"], "Fred")
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d2 = copy_func(d1)
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d2.update({"developers": "Groucho"})
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self.assertEqual(d2["developers"], "Groucho")
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self.assertEqual(d1["developers"], "Fred")
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d1 = MultiValueDict({
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"key": [[]]
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})
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self.assertEqual(d1["key"], [])
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d2 = copy_func(d1)
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d2["key"].append("Penguin")
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self.assertEqual(d1["key"], ["Penguin"])
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self.assertEqual(d2["key"], ["Penguin"])
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def test_dict_translation(self):
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mvd = MultiValueDict({
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'devs': ['Bob', 'Joe'],
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'pm': ['Rory'],
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})
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d = mvd.dict()
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self.assertEqual(sorted(d.keys()), sorted(mvd.keys()))
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for key in mvd.keys():
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self.assertEqual(d[key], mvd[key])
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self.assertEqual({}, MultiValueDict().dict())
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def test_getlist_doesnt_mutate(self):
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x = MultiValueDict({'a': ['1', '2'], 'b': ['3']})
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values = x.getlist('a')
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values += x.getlist('b')
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self.assertEqual(x.getlist('a'), ['1', '2'])
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def test_internal_getlist_does_mutate(self):
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x = MultiValueDict({'a': ['1', '2'], 'b': ['3']})
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values = x._getlist('a')
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values += x._getlist('b')
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self.assertEqual(x._getlist('a'), ['1', '2', '3'])
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def test_getlist_default(self):
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x = MultiValueDict({'a': [1]})
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MISSING = object()
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values = x.getlist('b', default=MISSING)
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self.assertIs(values, MISSING)
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def test_getlist_none_empty_values(self):
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x = MultiValueDict({'a': None, 'b': []})
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self.assertIsNone(x.getlist('a'))
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self.assertEqual(x.getlist('b'), [])
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class ImmutableListTests(SimpleTestCase):
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def test_sort(self):
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d = ImmutableList(range(10))
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# AttributeError: ImmutableList object is immutable.
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with self.assertRaisesMessage(AttributeError, 'ImmutableList object is immutable.'):
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d.sort()
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self.assertEqual(repr(d), '(0, 1, 2, 3, 4, 5, 6, 7, 8, 9)')
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def test_custom_warning(self):
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d = ImmutableList(range(10), warning="Object is immutable!")
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self.assertEqual(d[1], 1)
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# AttributeError: Object is immutable!
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with self.assertRaisesMessage(AttributeError, 'Object is immutable!'):
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d.__setitem__(1, 'test')
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class DictWrapperTests(SimpleTestCase):
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def test_dictwrapper(self):
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def f(x):
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return "*%s" % x
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d = DictWrapper({'a': 'a'}, f, 'xx_')
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self.assertEqual(
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"Normal: %(a)s. Modified: %(xx_a)s" % d,
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'Normal: a. Modified: *a'
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)
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