1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
|
from graphql.pyutils import identity_func, Undefined
def describe_identity_func():
def returns_the_first_argument_it_receives():
assert identity_func() is Undefined
assert identity_func(Undefined) is Undefined
assert identity_func(None) is None
obj = object()
assert identity_func(obj) is obj
assert identity_func(Undefined, None) is Undefined
assert identity_func(None, Undefined) is None
assert identity_func(None, Undefined, obj) is None
assert identity_func(Undefined, None, obj) is Undefined
assert identity_func(obj, None, Undefined) is obj
|
