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from datetime import datetime
from unittest import mock
from django.db.models import DateTimeField, Value
from django.db.models.lookups import Lookup, YearLookup
from django.test import SimpleTestCase
class CustomLookup(Lookup):
pass
class LookupTests(SimpleTestCase):
def test_equality(self):
lookup = Lookup(Value(1), Value(2))
self.assertEqual(lookup, lookup)
self.assertEqual(lookup, Lookup(lookup.lhs, lookup.rhs))
self.assertEqual(lookup, mock.ANY)
self.assertNotEqual(lookup, Lookup(lookup.lhs, Value(3)))
self.assertNotEqual(lookup, Lookup(Value(3), lookup.rhs))
self.assertNotEqual(lookup, CustomLookup(lookup.lhs, lookup.rhs))
def test_repr(self):
tests = [
(Lookup(Value(1), Value("a")), "Lookup(Value(1), Value('a'))"),
(
YearLookup(
Value(datetime(2010, 1, 1, 0, 0, 0)),
Value(datetime(2010, 1, 1, 23, 59, 59)),
),
"YearLookup("
"Value(datetime.datetime(2010, 1, 1, 0, 0)), "
"Value(datetime.datetime(2010, 1, 1, 23, 59, 59)))",
),
]
for lookup, expected in tests:
with self.subTest(lookup=lookup):
self.assertEqual(repr(lookup), expected)
def test_hash(self):
lookup = Lookup(Value(1), Value(2))
self.assertEqual(hash(lookup), hash(lookup))
self.assertEqual(hash(lookup), hash(Lookup(lookup.lhs, lookup.rhs)))
self.assertNotEqual(hash(lookup), hash(Lookup(lookup.lhs, Value(3))))
self.assertNotEqual(hash(lookup), hash(Lookup(Value(3), lookup.rhs)))
self.assertNotEqual(hash(lookup), hash(CustomLookup(lookup.lhs, lookup.rhs)))
class YearLookupTests(SimpleTestCase):
def test_get_bound_params(self):
look_up = YearLookup(
lhs=Value(datetime(2010, 1, 1, 0, 0, 0), output_field=DateTimeField()),
rhs=Value(datetime(2010, 1, 1, 23, 59, 59), output_field=DateTimeField()),
)
msg = "subclasses of YearLookup must provide a get_bound_params() method"
with self.assertRaisesMessage(NotImplementedError, msg):
look_up.get_bound_params(
datetime(2010, 1, 1, 0, 0, 0), datetime(2010, 1, 1, 23, 59, 59)
)
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