graphene-django/graphene_django/rest_framework/tests/test_mutation.py
mahmoudmostafa0 e49a01c189
adding optional_field in Serializermutation to enfore some fields to be optional (#1455)
* adding optional_fields to enforce fields to be optional

* adding support for all

* adding unit tests

* Update graphene_django/rest_framework/mutation.py

Co-authored-by: Kien Dang <kiend@pm.me>

* linting

* linting

* add missing import

---------

Co-authored-by: Kien Dang <kiend@pm.me>
2023-08-28 00:15:35 +03:00

350 lines
10 KiB
Python

import datetime
from pytest import raises
from rest_framework import serializers
from graphene import Field, ResolveInfo, String
from graphene.types.inputobjecttype import InputObjectType
from ...types import DjangoObjectType
from ..models import (
MyFakeModel,
MyFakeModelWithChoiceField,
MyFakeModelWithDate,
MyFakeModelWithPassword,
)
from ..mutation import SerializerMutation
def mock_info():
return ResolveInfo(
None,
None,
None,
None,
path=None,
schema=None,
fragments=None,
root_value=None,
operation=None,
variable_values=None,
context=None,
is_awaitable=None,
)
class MyModelSerializer(serializers.ModelSerializer):
class Meta:
model = MyFakeModel
fields = "__all__"
class MyModelSerializerWithMethod(serializers.ModelSerializer):
days_since_last_edit = serializers.SerializerMethodField()
class Meta:
model = MyFakeModelWithDate
fields = "__all__"
def get_days_since_last_edit(self, obj):
now = datetime.date(2020, 1, 8)
return (now - obj.last_edited).days
class MyModelMutation(SerializerMutation):
class Meta:
serializer_class = MyModelSerializer
class MySerializer(serializers.Serializer):
text = serializers.CharField()
model = MyModelSerializer()
def create(self, validated_data):
return validated_data
def test_needs_serializer_class():
with raises(Exception) as exc:
class MyMutation(SerializerMutation):
pass
assert str(exc.value) == "serializer_class is required for the SerializerMutation"
def test_has_fields():
class MyMutation(SerializerMutation):
class Meta:
serializer_class = MySerializer
assert "text" in MyMutation._meta.fields
assert "model" in MyMutation._meta.fields
assert "errors" in MyMutation._meta.fields
def test_has_input_fields():
class MyMutation(SerializerMutation):
class Meta:
serializer_class = MySerializer
assert "text" in MyMutation.Input._meta.fields
assert "model" in MyMutation.Input._meta.fields
def test_exclude_fields():
class MyMutation(SerializerMutation):
class Meta:
serializer_class = MyModelSerializer
exclude_fields = ["created"]
assert "cool_name" in MyMutation._meta.fields
assert "created" not in MyMutation._meta.fields
assert "errors" in MyMutation._meta.fields
assert "cool_name" in MyMutation.Input._meta.fields
assert "created" not in MyMutation.Input._meta.fields
def test_model_serializer_optional_fields():
class MyMutation(SerializerMutation):
class Meta:
serializer_class = MyModelSerializer
optional_fields = ("cool_name",)
assert "cool_name" in MyMutation.Input._meta.fields
assert MyMutation.Input._meta.fields["cool_name"].type == String
def test_write_only_field():
class WriteOnlyFieldModelSerializer(serializers.ModelSerializer):
password = serializers.CharField(write_only=True)
class Meta:
model = MyFakeModelWithPassword
fields = ["cool_name", "password"]
class MyMutation(SerializerMutation):
class Meta:
serializer_class = WriteOnlyFieldModelSerializer
result = MyMutation.mutate_and_get_payload(
None, mock_info(), **{"cool_name": "New Narf", "password": "admin"}
)
assert hasattr(result, "cool_name")
assert not hasattr(
result, "password"
), "'password' is write_only field and shouldn't be visible"
def test_write_only_field_using_extra_kwargs():
class WriteOnlyFieldModelSerializer(serializers.ModelSerializer):
class Meta:
model = MyFakeModelWithPassword
fields = ["cool_name", "password"]
extra_kwargs = {"password": {"write_only": True}}
class MyMutation(SerializerMutation):
class Meta:
serializer_class = WriteOnlyFieldModelSerializer
result = MyMutation.mutate_and_get_payload(
None, mock_info(), **{"cool_name": "New Narf", "password": "admin"}
)
assert hasattr(result, "cool_name")
assert not hasattr(
result, "password"
), "'password' is write_only field and shouldn't be visible"
def test_read_only_fields():
class ReadOnlyFieldModelSerializer(serializers.ModelSerializer):
id = serializers.CharField(read_only=True)
cool_name = serializers.CharField(read_only=True)
class Meta:
model = MyFakeModelWithPassword
lookup_field = "id"
fields = ["id", "cool_name", "password"]
class MyMutation(SerializerMutation):
class Meta:
serializer_class = ReadOnlyFieldModelSerializer
assert "password" in MyMutation.Input._meta.fields
assert "id" in MyMutation.Input._meta.fields
assert (
"cool_name" not in MyMutation.Input._meta.fields
), "'cool_name' is read_only field and shouldn't be on arguments"
def test_hidden_fields():
class SerializerWithHiddenField(serializers.Serializer):
cool_name = serializers.CharField()
user = serializers.HiddenField(default=serializers.CurrentUserDefault())
class MyMutation(SerializerMutation):
class Meta:
serializer_class = SerializerWithHiddenField
assert "cool_name" in MyMutation.Input._meta.fields
assert (
"user" not in MyMutation.Input._meta.fields
), "'user' is hidden field and shouldn't be on arguments"
def test_nested_model():
class MyFakeModelGrapheneType(DjangoObjectType):
class Meta:
model = MyFakeModel
fields = "__all__"
class MyMutation(SerializerMutation):
class Meta:
serializer_class = MySerializer
model_field = MyMutation._meta.fields["model"]
assert isinstance(model_field, Field)
assert model_field.type == MyFakeModelGrapheneType
model_input = MyMutation.Input._meta.fields["model"]
model_input_type = model_input._type.of_type
assert issubclass(model_input_type, InputObjectType)
assert "cool_name" in model_input_type._meta.fields
assert "created" in model_input_type._meta.fields
def test_mutate_and_get_payload_success():
class MyMutation(SerializerMutation):
class Meta:
serializer_class = MySerializer
result = MyMutation.mutate_and_get_payload(
None, mock_info(), **{"text": "value", "model": {"cool_name": "other_value"}}
)
assert result.errors is None
def test_model_add_mutate_and_get_payload_success():
result = MyModelMutation.mutate_and_get_payload(
None, mock_info(), **{"cool_name": "Narf"}
)
assert result.errors is None
assert result.cool_name == "Narf"
assert isinstance(result.created, datetime.datetime)
def test_model_update_mutate_and_get_payload_success():
instance = MyFakeModel.objects.create(cool_name="Narf")
result = MyModelMutation.mutate_and_get_payload(
None, mock_info(), **{"id": instance.id, "cool_name": "New Narf"}
)
assert result.errors is None
assert result.cool_name == "New Narf"
def test_model_partial_update_mutate_and_get_payload_success():
instance = MyFakeModel.objects.create(cool_name="Narf")
result = MyModelMutation.mutate_and_get_payload(
None, mock_info(), **{"id": instance.id}
)
assert result.errors is None
assert result.cool_name == "Narf"
def test_model_invalid_update_mutate_and_get_payload_success():
class InvalidModelMutation(SerializerMutation):
class Meta:
serializer_class = MyModelSerializer
model_operations = ["update"]
with raises(Exception) as exc:
InvalidModelMutation.mutate_and_get_payload(
None, mock_info(), **{"cool_name": "Narf"}
)
assert '"id" required' in str(exc.value)
def test_perform_mutate_success():
class MyMethodMutation(SerializerMutation):
class Meta:
serializer_class = MyModelSerializerWithMethod
result = MyMethodMutation.mutate_and_get_payload(
None,
mock_info(),
**{"cool_name": "Narf", "last_edited": datetime.date(2020, 1, 4)}
)
assert result.errors is None
assert result.cool_name == "Narf"
assert result.days_since_last_edit == 4
def test_perform_mutate_success_with_enum_choice_field():
class ListViewChoiceFieldSerializer(serializers.ModelSerializer):
choice_type = serializers.ChoiceField(
choices=[(x.name, x.value) for x in MyFakeModelWithChoiceField.ChoiceType],
required=False,
)
class Meta:
model = MyFakeModelWithChoiceField
fields = "__all__"
class SomeCreateSerializerMutation(SerializerMutation):
class Meta:
serializer_class = ListViewChoiceFieldSerializer
choice_type = {
"choice_type": SomeCreateSerializerMutation.Input.choice_type.type.get("ASDF")
}
name = MyFakeModelWithChoiceField.ChoiceType.ASDF.name
result = SomeCreateSerializerMutation.mutate_and_get_payload(
None, mock_info(), **choice_type
)
assert result.errors is None
assert result.choice_type == name
kwargs = SomeCreateSerializerMutation.get_serializer_kwargs(
None, mock_info(), **choice_type
)
assert kwargs["data"]["choice_type"] == name
assert 1 == MyFakeModelWithChoiceField.objects.count()
item = MyFakeModelWithChoiceField.objects.first()
assert item.choice_type == name
def test_mutate_and_get_payload_error():
class MyMutation(SerializerMutation):
class Meta:
serializer_class = MySerializer
# missing required fields
result = MyMutation.mutate_and_get_payload(None, mock_info(), **{})
assert len(result.errors) > 0
def test_model_mutate_and_get_payload_error():
# missing required fields
result = MyModelMutation.mutate_and_get_payload(None, mock_info(), **{})
assert len(result.errors) > 0
def test_mutation_error_camelcased(graphene_settings):
graphene_settings.CAMELCASE_ERRORS = True
result = MyModelMutation.mutate_and_get_payload(None, mock_info(), **{})
assert result.errors[0].field == "coolName"
def test_invalid_serializer_operations():
with raises(Exception) as exc:
class MyModelMutation(SerializerMutation):
class Meta:
serializer_class = MyModelSerializer
model_operations = ["Add"]
assert "model_operations" in str(exc.value)