11import pytest
22from django .test import override_settings
33from django .urls import path , reverse
4- from rest_framework import views
4+ from rest_framework import generics
55
66from rest_framework_json_api import serializers
77
88from example .models import Blog
99
1010
11+ class AuthorModelMock :
12+ __name__ = "author"
13+ 14+ @property
15+ def model (self ):
16+ return self
17+ 18+ @property
19+ def queryset (self ):
20+ return self
21+ 22+ def create (self , * args , ** kwargs ):
23+ pass
24+ 25+ def get (self , pk ):
26+ if isinstance (pk , int ):
27+ return self
28+ raise TypeError ("pk must be integer" )
29+ 30+ 1131# serializers
1232class CommentAttachmentSerializer (serializers .Serializer ):
1333 data = serializers .CharField (allow_null = False , required = True )
@@ -30,6 +50,9 @@ class EntrySerializer(serializers.Serializer):
3050 comment = CommentSerializer (required = False )
3151 headline = serializers .CharField (allow_null = True , required = True )
3252 body_text = serializers .CharField ()
53+ author = serializers .ResourceRelatedField (
54+ queryset = AuthorModelMock ().queryset , required = False
55+ )
3356
3457 def validate (self , attrs ):
3558 body_text = attrs ["body_text" ]
@@ -40,13 +63,12 @@ def validate(self, attrs):
4063
4164
4265# view
43- class DummyTestView (views . APIView ):
66+ class DummyTestView (generics . CreateAPIView ):
4467 serializer_class = EntrySerializer
4568 resource_name = "entries"
4669
47- def post (self , request , * args , ** kwargs ):
48- serializer = self .serializer_class (data = request .data )
49- serializer .is_valid (raise_exception = True )
70+ def get_serializer_context (self ):
71+ return {}
5072
5173
5274urlpatterns = [
@@ -191,3 +213,21 @@ def test_many_third_level_dict_errors(client, some_blog, snapshot):
191213 }
192214
193215 snapshot .assert_match (perform_error_test (client , data ))
216+ 217+ 218+ def test_relationship_errors_has_correct_pointers (client , some_blog , snapshot ):
219+ data = {
220+ "data" : {
221+ "type" : "entries" ,
222+ "attributes" : {
223+ "blog" : some_blog .pk ,
224+ "bodyText" : "body_text" ,
225+ "headline" : "headline" ,
226+ },
227+ "relationships" : {
228+ "author" : {"data" : {"id" : "INVALID_ID" , "type" : "authors" }}
229+ },
230+ }
231+ }
232+ 233+ snapshot .assert_match (perform_error_test (client , data ))
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