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from django.test import SimpleTestCase
from django.utils.hashable import make_hashable
class TestHashable(SimpleTestCase):
def test_equal(self):
tests = (
([], ()),
(['a', 1], ('a', 1)),
({}, ()),
({'a'}, ('a',)),
(frozenset({'a'}), {'a'}),
({'a': 1, 'b': 2}, (('a', 1), ('b', 2))),
({'b': 2, 'a': 1}, (('a', 1), ('b', 2))),
(('a', ['b', 1]), ('a', ('b', 1))),
(('a', {'b': 1}), ('a', (('b', 1),))),
)
for value, expected in tests:
with self.subTest(value=value):
self.assertEqual(make_hashable(value), expected)
def test_count_equal(self):
tests = (
({'a': 1, 'b': ['a', 1]}, (('a', 1), ('b', ('a', 1)))),
({'a': 1, 'b': ('a', [1, 2])}, (('a', 1), ('b', ('a', (1, 2))))),
)
for value, expected in tests:
with self.subTest(value=value):
self.assertCountEqual(make_hashable(value), expected)
def test_unhashable(self):
class Unhashable:
__hash__ = None
with self.assertRaisesMessage(TypeError, "unhashable type: 'Unhashable'"):
make_hashable(Unhashable())
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