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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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