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Adds 2 tests for HAVING queries.

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This commit is contained in:
Bertrand Bordage 2015-02-17 21:47:41 +01:00
parent 81b63eaff3
commit 67c05ed460
2 changed files with 39 additions and 0 deletions
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11
cachalot/tests/read.py
View file

@ -457,6 +457,17 @@ class ReadTestCase(TransactionTestCase):
self.assertListEqual([t.name for t in data2],
['test1', 'test2'])
def test_having(self):
with self.assertNumQueries(1):
data1 = list(User.objects.annotate(n=Count('user_permissions'))
.filter(n__gte=1))
self.assertListEqual(data1, [self.user])
with self.assertNumQueries(0):
data2 = list(User.objects.annotate(n=Count('user_permissions'))
.filter(n__gte=1))
self.assertListEqual(data2, [self.user])
def test_extra_select(self):
username_length_sql = """
SELECT LENGTH(%(user_table)s.username)

28
cachalot/tests/write.py
View file

@ -299,6 +299,34 @@ class WriteTestCase(TransactionTestCase):
self.assertListEqual(data5, [user1, user2])
self.assertListEqual([u.n for u in data5], [3, 2])
def test_invalidate_having(self):
with self.assertNumQueries(1):
data1 = list(User.objects.annotate(n=Count('user_permissions'))
.filter(n__gte=1))
self.assertListEqual(data1, [])
u = User.objects.create_user('user')
with self.assertNumQueries(1):
data2 = list(User.objects.annotate(n=Count('user_permissions'))
.filter(n__gte=1))
self.assertListEqual(data2, [])
p = Permission.objects.first()
p.save()
with self.assertNumQueries(1):
data3 = list(User.objects.annotate(n=Count('user_permissions'))
.filter(n__gte=1))
self.assertListEqual(data3, [])
u.user_permissions.add(p)
with self.assertNumQueries(1):
data3 = list(User.objects.annotate(n=Count('user_permissions'))
.filter(n__gte=1))
self.assertListEqual(data3, [u])
def test_invalidate_subquery(self):
with self.assertNumQueries(1):
data1 = list(Test.objects.filter(owner__in=User.objects.all()))