mirror of
https://github.com/django/django.git
synced 2024-12-22 17:16:24 +00:00
191 lines
5.9 KiB
Python
191 lines
5.9 KiB
Python
from django.db.models import BooleanField, Exists, F, OuterRef, Q
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from django.db.models.expressions import RawSQL
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from django.test import SimpleTestCase
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from .models import Tag
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class QTests(SimpleTestCase):
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def test_combine_and_empty(self):
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q = Q(x=1)
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self.assertEqual(q & Q(), q)
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self.assertEqual(Q() & q, q)
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q = Q(x__in={}.keys())
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self.assertEqual(q & Q(), q)
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self.assertEqual(Q() & q, q)
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def test_combine_and_both_empty(self):
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self.assertEqual(Q() & Q(), Q())
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def test_combine_or_empty(self):
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q = Q(x=1)
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self.assertEqual(q | Q(), q)
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self.assertEqual(Q() | q, q)
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q = Q(x__in={}.keys())
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self.assertEqual(q | Q(), q)
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self.assertEqual(Q() | q, q)
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def test_combine_xor_empty(self):
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q = Q(x=1)
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self.assertEqual(q ^ Q(), q)
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self.assertEqual(Q() ^ q, q)
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q = Q(x__in={}.keys())
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self.assertEqual(q ^ Q(), q)
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self.assertEqual(Q() ^ q, q)
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def test_combine_empty_copy(self):
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base_q = Q(x=1)
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tests = [
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base_q | Q(),
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Q() | base_q,
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base_q & Q(),
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Q() & base_q,
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base_q ^ Q(),
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Q() ^ base_q,
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]
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for i, q in enumerate(tests):
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with self.subTest(i=i):
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self.assertEqual(q, base_q)
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self.assertIsNot(q, base_q)
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def test_combine_or_both_empty(self):
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self.assertEqual(Q() | Q(), Q())
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def test_combine_xor_both_empty(self):
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self.assertEqual(Q() ^ Q(), Q())
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def test_combine_not_q_object(self):
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obj = object()
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q = Q(x=1)
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with self.assertRaisesMessage(TypeError, str(obj)):
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q | obj
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with self.assertRaisesMessage(TypeError, str(obj)):
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q & obj
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with self.assertRaisesMessage(TypeError, str(obj)):
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q ^ obj
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def test_combine_negated_boolean_expression(self):
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tagged = Tag.objects.filter(category=OuterRef("pk"))
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tests = [
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Q() & ~Exists(tagged),
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Q() | ~Exists(tagged),
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Q() ^ ~Exists(tagged),
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]
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for q in tests:
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with self.subTest(q=q):
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self.assertIs(q.negated, True)
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def test_deconstruct(self):
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q = Q(price__gt=F("discounted_price"))
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path, args, kwargs = q.deconstruct()
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self.assertEqual(path, "django.db.models.Q")
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self.assertEqual(args, (("price__gt", F("discounted_price")),))
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self.assertEqual(kwargs, {})
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def test_deconstruct_negated(self):
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q = ~Q(price__gt=F("discounted_price"))
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path, args, kwargs = q.deconstruct()
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self.assertEqual(args, (("price__gt", F("discounted_price")),))
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self.assertEqual(kwargs, {"_negated": True})
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def test_deconstruct_or(self):
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q1 = Q(price__gt=F("discounted_price"))
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q2 = Q(price=F("discounted_price"))
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q = q1 | q2
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path, args, kwargs = q.deconstruct()
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self.assertEqual(
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args,
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(
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("price__gt", F("discounted_price")),
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("price", F("discounted_price")),
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),
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)
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self.assertEqual(kwargs, {"_connector": "OR"})
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def test_deconstruct_xor(self):
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q1 = Q(price__gt=F("discounted_price"))
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q2 = Q(price=F("discounted_price"))
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q = q1 ^ q2
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path, args, kwargs = q.deconstruct()
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self.assertEqual(
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args,
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(
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("price__gt", F("discounted_price")),
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("price", F("discounted_price")),
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),
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)
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self.assertEqual(kwargs, {"_connector": "XOR"})
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def test_deconstruct_and(self):
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q1 = Q(price__gt=F("discounted_price"))
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q2 = Q(price=F("discounted_price"))
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q = q1 & q2
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path, args, kwargs = q.deconstruct()
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self.assertEqual(
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args,
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(
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("price__gt", F("discounted_price")),
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("price", F("discounted_price")),
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),
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)
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self.assertEqual(kwargs, {})
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def test_deconstruct_multiple_kwargs(self):
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q = Q(price__gt=F("discounted_price"), price=F("discounted_price"))
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path, args, kwargs = q.deconstruct()
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self.assertEqual(
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args,
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(
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("price", F("discounted_price")),
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("price__gt", F("discounted_price")),
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),
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)
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self.assertEqual(kwargs, {})
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def test_deconstruct_nested(self):
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q = Q(Q(price__gt=F("discounted_price")))
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path, args, kwargs = q.deconstruct()
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self.assertEqual(args, (Q(price__gt=F("discounted_price")),))
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self.assertEqual(kwargs, {})
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def test_deconstruct_boolean_expression(self):
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expr = RawSQL("1 = 1", BooleanField())
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q = Q(expr)
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_, args, kwargs = q.deconstruct()
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self.assertEqual(args, (expr,))
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self.assertEqual(kwargs, {})
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def test_reconstruct(self):
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q = Q(price__gt=F("discounted_price"))
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path, args, kwargs = q.deconstruct()
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self.assertEqual(Q(*args, **kwargs), q)
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def test_reconstruct_negated(self):
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q = ~Q(price__gt=F("discounted_price"))
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path, args, kwargs = q.deconstruct()
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self.assertEqual(Q(*args, **kwargs), q)
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def test_reconstruct_or(self):
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q1 = Q(price__gt=F("discounted_price"))
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q2 = Q(price=F("discounted_price"))
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q = q1 | q2
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path, args, kwargs = q.deconstruct()
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self.assertEqual(Q(*args, **kwargs), q)
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def test_reconstruct_xor(self):
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q1 = Q(price__gt=F("discounted_price"))
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q2 = Q(price=F("discounted_price"))
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q = q1 ^ q2
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path, args, kwargs = q.deconstruct()
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self.assertEqual(Q(*args, **kwargs), q)
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def test_reconstruct_and(self):
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q1 = Q(price__gt=F("discounted_price"))
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q2 = Q(price=F("discounted_price"))
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q = q1 & q2
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path, args, kwargs = q.deconstruct()
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self.assertEqual(Q(*args, **kwargs), q)
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