mirror of
https://github.com/django/django.git
synced 2024-12-27 03:25:58 +00:00
311 lines
10 KiB
Python
311 lines
10 KiB
Python
"""
|
|
Tests for stuff in django.utils.datastructures.
|
|
"""
|
|
|
|
import copy
|
|
import pickle
|
|
|
|
from django.test import SimpleTestCase
|
|
from django.test.utils import IgnorePendingDeprecationWarningsMixin
|
|
from django.utils.datastructures import (DictWrapper, ImmutableList,
|
|
MultiValueDict, MultiValueDictKeyError, MergeDict, SortedDict)
|
|
from django.utils import six
|
|
|
|
|
|
class SortedDictTests(IgnorePendingDeprecationWarningsMixin, SimpleTestCase):
|
|
def setUp(self):
|
|
super(SortedDictTests, self).setUp()
|
|
self.d1 = SortedDict()
|
|
self.d1[7] = 'seven'
|
|
self.d1[1] = 'one'
|
|
self.d1[9] = 'nine'
|
|
|
|
self.d2 = SortedDict()
|
|
self.d2[1] = 'one'
|
|
self.d2[9] = 'nine'
|
|
self.d2[0] = 'nil'
|
|
self.d2[7] = 'seven'
|
|
|
|
def test_basic_methods(self):
|
|
self.assertEqual(list(six.iterkeys(self.d1)), [7, 1, 9])
|
|
self.assertEqual(list(six.itervalues(self.d1)), ['seven', 'one', 'nine'])
|
|
self.assertEqual(list(six.iteritems(self.d1)), [(7, 'seven'), (1, 'one'), (9, 'nine')])
|
|
|
|
def test_overwrite_ordering(self):
|
|
""" Overwriting an item keeps its place. """
|
|
self.d1[1] = 'ONE'
|
|
self.assertEqual(list(six.itervalues(self.d1)), ['seven', 'ONE', 'nine'])
|
|
|
|
def test_append_items(self):
|
|
""" New items go to the end. """
|
|
self.d1[0] = 'nil'
|
|
self.assertEqual(list(six.iterkeys(self.d1)), [7, 1, 9, 0])
|
|
|
|
def test_delete_and_insert(self):
|
|
"""
|
|
Deleting an item, then inserting the same key again will place it
|
|
at the end.
|
|
"""
|
|
del self.d2[7]
|
|
self.assertEqual(list(six.iterkeys(self.d2)), [1, 9, 0])
|
|
self.d2[7] = 'lucky number 7'
|
|
self.assertEqual(list(six.iterkeys(self.d2)), [1, 9, 0, 7])
|
|
|
|
if six.PY2:
|
|
def test_change_keys(self):
|
|
"""
|
|
Changing the keys won't do anything, it's only a copy of the
|
|
keys dict.
|
|
|
|
This test doesn't make sense under Python 3 because keys is
|
|
an iterator.
|
|
"""
|
|
k = self.d2.keys()
|
|
k.remove(9)
|
|
self.assertEqual(self.d2.keys(), [1, 9, 0, 7])
|
|
|
|
def test_init_keys(self):
|
|
"""
|
|
Initialising a SortedDict with two keys will just take the first one.
|
|
|
|
A real dict will actually take the second value so we will too, but
|
|
we'll keep the ordering from the first key found.
|
|
"""
|
|
tuples = ((2, 'two'), (1, 'one'), (2, 'second-two'))
|
|
d = SortedDict(tuples)
|
|
|
|
self.assertEqual(list(six.iterkeys(d)), [2, 1])
|
|
|
|
real_dict = dict(tuples)
|
|
self.assertEqual(sorted(six.itervalues(real_dict)), ['one', 'second-two'])
|
|
|
|
# Here the order of SortedDict values *is* what we are testing
|
|
self.assertEqual(list(six.itervalues(d)), ['second-two', 'one'])
|
|
|
|
def test_overwrite(self):
|
|
self.d1[1] = 'not one'
|
|
self.assertEqual(self.d1[1], 'not one')
|
|
self.assertEqual(list(six.iterkeys(self.d1)), list(six.iterkeys(self.d1.copy())))
|
|
|
|
def test_append(self):
|
|
self.d1[13] = 'thirteen'
|
|
self.assertEqual(
|
|
repr(self.d1),
|
|
"{7: 'seven', 1: 'one', 9: 'nine', 13: 'thirteen'}"
|
|
)
|
|
|
|
def test_pop(self):
|
|
self.assertEqual(self.d1.pop(1, 'missing'), 'one')
|
|
self.assertEqual(self.d1.pop(1, 'missing'), 'missing')
|
|
|
|
# We don't know which item will be popped in popitem(), so we'll
|
|
# just check that the number of keys has decreased.
|
|
l = len(self.d1)
|
|
self.d1.popitem()
|
|
self.assertEqual(l - len(self.d1), 1)
|
|
|
|
def test_dict_equality(self):
|
|
d = SortedDict((i, i) for i in range(3))
|
|
self.assertEqual(d, {0: 0, 1: 1, 2: 2})
|
|
|
|
def test_tuple_init(self):
|
|
d = SortedDict(((1, "one"), (0, "zero"), (2, "two")))
|
|
self.assertEqual(repr(d), "{1: 'one', 0: 'zero', 2: 'two'}")
|
|
|
|
def test_pickle(self):
|
|
self.assertEqual(
|
|
pickle.loads(pickle.dumps(self.d1, 2)),
|
|
{7: 'seven', 1: 'one', 9: 'nine'}
|
|
)
|
|
|
|
def test_copy(self):
|
|
orig = SortedDict(((1, "one"), (0, "zero"), (2, "two")))
|
|
copied = copy.copy(orig)
|
|
self.assertEqual(list(six.iterkeys(orig)), [1, 0, 2])
|
|
self.assertEqual(list(six.iterkeys(copied)), [1, 0, 2])
|
|
|
|
def test_clear(self):
|
|
self.d1.clear()
|
|
self.assertEqual(self.d1, {})
|
|
self.assertEqual(self.d1.keyOrder, [])
|
|
|
|
def test_reversed(self):
|
|
self.assertEqual(list(self.d1), [7, 1, 9])
|
|
self.assertEqual(list(self.d2), [1, 9, 0, 7])
|
|
self.assertEqual(list(reversed(self.d1)), [9, 1, 7])
|
|
self.assertEqual(list(reversed(self.d2)), [7, 0, 9, 1])
|
|
|
|
|
|
class MergeDictTests(IgnorePendingDeprecationWarningsMixin, SimpleTestCase):
|
|
|
|
def test_simple_mergedict(self):
|
|
d1 = {'chris': 'cool', 'camri': 'cute', 'cotton': 'adorable',
|
|
'tulip': 'snuggable', 'twoofme': 'firstone'}
|
|
|
|
d2 = {'chris2': 'cool2', 'camri2': 'cute2', 'cotton2': 'adorable2',
|
|
'tulip2': 'snuggable2'}
|
|
|
|
d3 = {'chris3': 'cool3', 'camri3': 'cute3', 'cotton3': 'adorable3',
|
|
'tulip3': 'snuggable3'}
|
|
|
|
md = MergeDict(d1, d2, d3)
|
|
|
|
self.assertEqual(md['chris'], 'cool')
|
|
self.assertEqual(md['camri'], 'cute')
|
|
self.assertEqual(md['twoofme'], 'firstone')
|
|
|
|
md2 = md.copy()
|
|
self.assertEqual(md2['chris'], 'cool')
|
|
|
|
def test_mergedict_merges_multivaluedict(self):
|
|
""" MergeDict can merge MultiValueDicts """
|
|
|
|
multi1 = MultiValueDict({'key1': ['value1'],
|
|
'key2': ['value2', 'value3']})
|
|
|
|
multi2 = MultiValueDict({'key2': ['value4'],
|
|
'key4': ['value5', 'value6']})
|
|
|
|
mm = MergeDict(multi1, multi2)
|
|
|
|
# Although 'key2' appears in both dictionaries,
|
|
# only the first value is used.
|
|
self.assertEqual(mm.getlist('key2'), ['value2', 'value3'])
|
|
self.assertEqual(mm.getlist('key4'), ['value5', 'value6'])
|
|
self.assertEqual(mm.getlist('undefined'), [])
|
|
|
|
self.assertEqual(sorted(six.iterkeys(mm)), ['key1', 'key2', 'key4'])
|
|
self.assertEqual(len(list(six.itervalues(mm))), 3)
|
|
|
|
self.assertTrue('value1' in six.itervalues(mm))
|
|
|
|
self.assertEqual(
|
|
sorted(six.iteritems(mm), key=lambda k: k[0]),
|
|
[('key1', 'value1'), ('key2', 'value3'), ('key4', 'value6')]
|
|
)
|
|
|
|
self.assertEqual(
|
|
[(k, mm.getlist(k)) for k in sorted(mm)],
|
|
[('key1', ['value1']),
|
|
('key2', ['value2', 'value3']),
|
|
('key4', ['value5', 'value6'])]
|
|
)
|
|
|
|
def test_bool_casting(self):
|
|
empty = MergeDict({}, {}, {})
|
|
not_empty = MergeDict({}, {}, {"key": "value"})
|
|
self.assertFalse(empty)
|
|
self.assertTrue(not_empty)
|
|
|
|
def test_key_error(self):
|
|
"""
|
|
Test that the message of KeyError contains the missing key name.
|
|
"""
|
|
d1 = MergeDict({'key1': 42})
|
|
with six.assertRaisesRegex(self, KeyError, 'key2'):
|
|
d1['key2']
|
|
|
|
|
|
class MultiValueDictTests(SimpleTestCase):
|
|
|
|
def test_multivaluedict(self):
|
|
d = MultiValueDict({'name': ['Adrian', 'Simon'],
|
|
'position': ['Developer']})
|
|
|
|
self.assertEqual(d['name'], 'Simon')
|
|
self.assertEqual(d.get('name'), 'Simon')
|
|
self.assertEqual(d.getlist('name'), ['Adrian', 'Simon'])
|
|
self.assertEqual(
|
|
sorted(list(six.iteritems(d))),
|
|
[('name', 'Simon'), ('position', 'Developer')]
|
|
)
|
|
|
|
self.assertEqual(
|
|
sorted(list(six.iterlists(d))),
|
|
[('name', ['Adrian', 'Simon']), ('position', ['Developer'])]
|
|
)
|
|
|
|
six.assertRaisesRegex(self, MultiValueDictKeyError, 'lastname',
|
|
d.__getitem__, 'lastname')
|
|
|
|
self.assertEqual(d.get('lastname'), None)
|
|
self.assertEqual(d.get('lastname', 'nonexistent'), 'nonexistent')
|
|
self.assertEqual(d.getlist('lastname'), [])
|
|
self.assertEqual(d.getlist('doesnotexist', ['Adrian', 'Simon']),
|
|
['Adrian', 'Simon'])
|
|
|
|
d.setlist('lastname', ['Holovaty', 'Willison'])
|
|
self.assertEqual(d.getlist('lastname'), ['Holovaty', 'Willison'])
|
|
self.assertEqual(sorted(list(six.itervalues(d))),
|
|
['Developer', 'Simon', 'Willison'])
|
|
|
|
def test_appendlist(self):
|
|
d = MultiValueDict()
|
|
d.appendlist('name', 'Adrian')
|
|
d.appendlist('name', 'Simon')
|
|
self.assertEqual(d.getlist('name'), ['Adrian', 'Simon'])
|
|
|
|
def test_copy(self):
|
|
for copy_func in [copy.copy, lambda d: d.copy()]:
|
|
d1 = MultiValueDict({
|
|
"developers": ["Carl", "Fred"]
|
|
})
|
|
self.assertEqual(d1["developers"], "Fred")
|
|
d2 = copy_func(d1)
|
|
d2.update({"developers": "Groucho"})
|
|
self.assertEqual(d2["developers"], "Groucho")
|
|
self.assertEqual(d1["developers"], "Fred")
|
|
|
|
d1 = MultiValueDict({
|
|
"key": [[]]
|
|
})
|
|
self.assertEqual(d1["key"], [])
|
|
d2 = copy_func(d1)
|
|
d2["key"].append("Penguin")
|
|
self.assertEqual(d1["key"], ["Penguin"])
|
|
self.assertEqual(d2["key"], ["Penguin"])
|
|
|
|
def test_dict_translation(self):
|
|
mvd = MultiValueDict({
|
|
'devs': ['Bob', 'Joe'],
|
|
'pm': ['Rory'],
|
|
})
|
|
d = mvd.dict()
|
|
self.assertEqual(list(six.iterkeys(d)), list(six.iterkeys(mvd)))
|
|
for key in six.iterkeys(mvd):
|
|
self.assertEqual(d[key], mvd[key])
|
|
|
|
self.assertEqual({}, MultiValueDict().dict())
|
|
|
|
|
|
class ImmutableListTests(SimpleTestCase):
|
|
|
|
def test_sort(self):
|
|
d = ImmutableList(range(10))
|
|
|
|
# AttributeError: ImmutableList object is immutable.
|
|
self.assertRaisesMessage(AttributeError,
|
|
'ImmutableList object is immutable.', d.sort)
|
|
|
|
self.assertEqual(repr(d), '(0, 1, 2, 3, 4, 5, 6, 7, 8, 9)')
|
|
|
|
def test_custom_warning(self):
|
|
d = ImmutableList(range(10), warning="Object is immutable!")
|
|
|
|
self.assertEqual(d[1], 1)
|
|
|
|
# AttributeError: Object is immutable!
|
|
self.assertRaisesMessage(AttributeError,
|
|
'Object is immutable!', d.__setitem__, 1, 'test')
|
|
|
|
|
|
class DictWrapperTests(SimpleTestCase):
|
|
|
|
def test_dictwrapper(self):
|
|
f = lambda x: "*%s" % x
|
|
d = DictWrapper({'a': 'a'}, f, 'xx_')
|
|
self.assertEqual(
|
|
"Normal: %(a)s. Modified: %(xx_a)s" % d,
|
|
'Normal: a. Modified: *a'
|
|
)
|