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230 lines
8.1 KiB
Python
230 lines
8.1 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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CaseInsensitiveMapping, DictWrapper, ImmutableList, MultiValueDict,
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MultiValueDictKeyError, 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'], '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']), ['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), sorted(mvd))
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for key in mvd:
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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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class CaseInsensitiveMappingTests(SimpleTestCase):
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def setUp(self):
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self.dict1 = CaseInsensitiveMapping({
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'Accept': 'application/json',
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'content-type': 'text/html',
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})
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def test_create_with_invalid_values(self):
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msg = 'dictionary update sequence element #1 has length 4; 2 is required'
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with self.assertRaisesMessage(ValueError, msg):
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CaseInsensitiveMapping([('Key1', 'Val1'), 'Key2'])
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def test_create_with_invalid_key(self):
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msg = 'Element key 1 invalid, only strings are allowed'
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with self.assertRaisesMessage(ValueError, msg):
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CaseInsensitiveMapping([(1, '2')])
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def test_list(self):
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self.assertEqual(list(self.dict1), ['Accept', 'content-type'])
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def test_dict(self):
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self.assertEqual(dict(self.dict1), {'Accept': 'application/json', 'content-type': 'text/html'})
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def test_repr(self):
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dict1 = CaseInsensitiveMapping({'Accept': 'application/json'})
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dict2 = CaseInsensitiveMapping({'content-type': 'text/html'})
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self.assertEqual(repr(dict1), repr({'Accept': 'application/json'}))
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self.assertEqual(repr(dict2), repr({'content-type': 'text/html'}))
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def test_str(self):
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dict1 = CaseInsensitiveMapping({'Accept': 'application/json'})
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dict2 = CaseInsensitiveMapping({'content-type': 'text/html'})
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self.assertEqual(str(dict1), str({'Accept': 'application/json'}))
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self.assertEqual(str(dict2), str({'content-type': 'text/html'}))
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def test_equal(self):
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self.assertEqual(self.dict1, {'Accept': 'application/json', 'content-type': 'text/html'})
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self.assertNotEqual(self.dict1, {'accept': 'application/jso', 'Content-Type': 'text/html'})
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self.assertNotEqual(self.dict1, 'string')
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def test_items(self):
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other = {'Accept': 'application/json', 'content-type': 'text/html'}
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self.assertEqual(sorted(self.dict1.items()), sorted(other.items()))
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def test_copy(self):
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copy = self.dict1.copy()
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self.assertIs(copy, self.dict1)
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self.assertEqual(copy, self.dict1)
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def test_getitem(self):
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self.assertEqual(self.dict1['Accept'], 'application/json')
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self.assertEqual(self.dict1['accept'], 'application/json')
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self.assertEqual(self.dict1['aCCept'], 'application/json')
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self.assertEqual(self.dict1['content-type'], 'text/html')
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self.assertEqual(self.dict1['Content-Type'], 'text/html')
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self.assertEqual(self.dict1['Content-type'], 'text/html')
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def test_in(self):
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self.assertIn('Accept', self.dict1)
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self.assertIn('accept', self.dict1)
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self.assertIn('aCCept', self.dict1)
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self.assertIn('content-type', self.dict1)
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self.assertIn('Content-Type', self.dict1)
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def test_del(self):
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self.assertIn('Accept', self.dict1)
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msg = "'CaseInsensitiveMapping' object does not support item deletion"
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with self.assertRaisesMessage(TypeError, msg):
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del self.dict1['Accept']
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self.assertIn('Accept', self.dict1)
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def test_set(self):
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self.assertEqual(len(self.dict1), 2)
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msg = "'CaseInsensitiveMapping' object does not support item assignment"
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with self.assertRaisesMessage(TypeError, msg):
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self.dict1['New Key'] = 1
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self.assertEqual(len(self.dict1), 2)
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