mirror of
https://github.com/django/django.git
synced 2024-12-25 10:35:48 +00:00
43920cd32e
git-svn-id: http://code.djangoproject.com/svn/django/trunk@16973 bcc190cf-cafb-0310-a4f2-bffc1f526a37
284 lines
9.7 KiB
Python
284 lines
9.7 KiB
Python
"""
|
|
Tests for stuff in django.utils.datastructures.
|
|
"""
|
|
|
|
import copy
|
|
import pickle
|
|
|
|
from django.test import SimpleTestCase
|
|
from django.utils.datastructures import (DictWrapper, DotExpandedDict,
|
|
ImmutableList, MultiValueDict, MultiValueDictKeyError, MergeDict, SortedDict)
|
|
|
|
|
|
class SortedDictTests(SimpleTestCase):
|
|
def setUp(self):
|
|
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(self.d1.keys(), [7, 1, 9])
|
|
self.assertEqual(self.d1.values(), ['seven', 'one', 'nine'])
|
|
self.assertEqual(self.d1.items(), [(7, 'seven'), (1, 'one'), (9, 'nine')])
|
|
|
|
def test_overwrite_ordering(self):
|
|
""" Overwriting an item keeps it's place. """
|
|
self.d1[1] = 'ONE'
|
|
self.assertEqual(self.d1.values(), ['seven', 'ONE', 'nine'])
|
|
|
|
def test_append_items(self):
|
|
""" New items go to the end. """
|
|
self.d1[0] = 'nil'
|
|
self.assertEqual(self.d1.keys(), [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(self.d2.keys(), [1, 9, 0])
|
|
self.d2[7] = 'lucky number 7'
|
|
self.assertEqual(self.d2.keys(), [1, 9, 0, 7])
|
|
|
|
def test_change_keys(self):
|
|
"""
|
|
Changing the keys won't do anything, it's only a copy of the
|
|
keys dict.
|
|
"""
|
|
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(d.keys(), [2, 1])
|
|
|
|
real_dict = dict(tuples)
|
|
self.assertEqual(sorted(real_dict.values()), ['one', 'second-two'])
|
|
|
|
# Here the order of SortedDict values *is* what we are testing
|
|
self.assertEqual(d.values(), ['second-two', 'one'])
|
|
|
|
def test_overwrite(self):
|
|
self.d1[1] = 'not one'
|
|
self.assertEqual(self.d1[1], 'not one')
|
|
self.assertEqual(self.d1.keys(), self.d1.copy().keys())
|
|
|
|
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 xrange(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_clear(self):
|
|
self.d1.clear()
|
|
self.assertEqual(self.d1, {})
|
|
self.assertEqual(self.d1.keyOrder, [])
|
|
|
|
class MergeDictTests(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'}
|
|
|
|
d4 = {'twoofme': 'secondone'}
|
|
|
|
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(mm.keys()), ['key1', 'key2', 'key4'])
|
|
self.assertEqual(len(mm.values()), 3)
|
|
|
|
self.assertTrue('value1' in mm.values())
|
|
|
|
self.assertEqual(sorted(mm.items(), 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'])])
|
|
|
|
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(list(d.iteritems()),
|
|
[('position', 'Developer'), ('name', 'Simon')])
|
|
|
|
self.assertEqual(list(d.iterlists()),
|
|
[('position', ['Developer']),
|
|
('name', ['Adrian', 'Simon'])])
|
|
|
|
# MultiValueDictKeyError: "Key 'lastname' not found in
|
|
# <MultiValueDict: {'position': ['Developer'],
|
|
# 'name': ['Adrian', 'Simon']}>"
|
|
self.assertRaisesMessage(MultiValueDictKeyError,
|
|
'"Key \'lastname\' not found in <MultiValueDict: {\'position\':'\
|
|
' [\'Developer\'], \'name\': [\'Adrian\', \'Simon\']}>"',
|
|
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(d.values(), ['Developer', 'Simon', 'Willison'])
|
|
self.assertEqual(list(d.itervalues()),
|
|
['Developer', 'Simon', 'Willison'])
|
|
|
|
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(d.keys(), mvd.keys())
|
|
for key in mvd.keys():
|
|
self.assertEqual(d[key], mvd[key])
|
|
|
|
self.assertEqual({}, MultiValueDict().dict())
|
|
|
|
|
|
class DotExpandedDictTests(SimpleTestCase):
|
|
|
|
def test_dotexpandeddict(self):
|
|
|
|
d = DotExpandedDict({'person.1.firstname': ['Simon'],
|
|
'person.1.lastname': ['Willison'],
|
|
'person.2.firstname': ['Adrian'],
|
|
'person.2.lastname': ['Holovaty']})
|
|
|
|
self.assertEqual(d['person']['1']['lastname'], ['Willison'])
|
|
self.assertEqual(d['person']['2']['lastname'], ['Holovaty'])
|
|
self.assertEqual(d['person']['2']['firstname'], ['Adrian'])
|
|
|
|
|
|
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')
|