def test_unique_within_transaction(self):
with transaction.atomic():
a = SimpleModel()
a.save()
b = SimpleModel()
b.save()
assert [1, 2] == list(
SimpleModel.objects.values_list('sequence', flat=True))
def test_simple_model(self):
a = SimpleModel()
a.save()
assert 1 == a.sequence
a.save()
assert 1 == a.sequence
b = SimpleModel()
b.save()
assert 2 == b.sequence
b.save()
assert 2 == b.sequence
def test_delete_simple_model(self):
a = SimpleModel()
a.save()
b = SimpleModel()
b.save()
b.delete()
c = SimpleModel()
c.save()
assert 2 == c.sequence
c.save()
assert 2 == c.sequence
def test_lock_table(self):
with lock_table(SimpleModel):
a = SimpleModel()
a.save()
b = SimpleModel()
b.save()
