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Add test for callable default value.

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This commit is contained in:
Markus Padourek 2016-09-12 13:46:22 +01:00
parent fce0b85b8a
commit dd72759396
2 changed files with 14 additions and 3 deletions
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9
graphene/types/field.py
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@ -18,7 +18,7 @@ def source_resolver(source, root, args, context, info):
class Field(OrderedType): class Field(OrderedType):
def __init__(self, type, args=None, resolver=None, source=None, def __init__(self, object_type, args=None, resolver=None, source=None,
deprecation_reason=None, name=None, description=None, deprecation_reason=None, name=None, description=None,
required=False, _creation_counter=None, default_value=None, required=False, _creation_counter=None, default_value=None,
**extra_args): **extra_args):
@ -29,12 +29,15 @@ class Field(OrderedType):
assert not (source and resolver), ( assert not (source and resolver), (
'A Field cannot have a source and a resolver in at the same time.' 'A Field cannot have a source and a resolver in at the same time.'
) )
assert not callable(default_value), (
'The default value can not be a function but received "{}".'
).format(type(default_value))
if required or default_value is not None: if required or default_value is not None:
type = NonNull(type) object_type = NonNull(object_type)
self.name = name self.name = name
self._type = type self._type = object_type
self.args = to_arguments(args or OrderedDict(), extra_args) self.args = to_arguments(args or OrderedDict(), extra_args)
if source: if source:
resolver = partial(source_resolver, source) resolver = partial(source_resolver, source)

8
graphene/types/tests/test_field.py
View File

@ -41,6 +41,14 @@ def test_field_required():
assert field.type.of_type == MyType assert field.type.of_type == MyType
def test_field_default_value_not_callable():
MyType = object()
try:
Field(MyType, default_value=lambda: True)
except AssertionError as e:
assert str(e) == 'The default value can not be a function but received "<type \'function\'>".'
def test_field_source(): def test_field_source():
MyType = object() MyType = object()
field = Field(MyType, source='value') field = Field(MyType, source='value')