def test_no_rows(self):
out = Alphabet.objects.all().aggregate(BitAnd('a'))
# Manual:
# "This function returns 18446744073709551615 if there were no matching
# rows. (This is the value of an unsigned BIGINT value with all bits
# set to 1.)"
assert out == {'a__bitand': 18446744073709551615}
def test_explicit_name(self):
Alphabet.objects.bulk_create([Alphabet(a=11), Alphabet(a=24)])
out = Alphabet.objects.all().aggregate(aaa=BitAnd('a'))
assert out == {'aaa': 8}
def test_implicit_name(self):
Alphabet.objects.bulk_create([Alphabet(a=29), Alphabet(a=15)])
out = Alphabet.objects.all().aggregate(BitAnd('a'))
assert out == {'a__bitand': 13}