[#267] Fixed tests and general improvements

Author: danielmursa-dev

src/openklant/components/klantinteracties/api/serializers/partijen.py

@@ -7,6 +7,7 @@
 from glom import PathAccessError, glom
 from rest_framework import serializers
 from vng_api_common.serializers import GegevensGroepSerializer, NestedGegevensGroepMixin
+from vng_api_common.utils import get_help_text
 
 from openklant.components.klantinteracties.api.polymorphism import (
     Discriminator,
@@ -395,7 +396,9 @@ class PartijIdentificatorSerializer(
     sub_identificator_van = PartijIdentificatorForeignkeySerializer(
         required=False,
         allow_null=True,
-        help_text=_("Relatie sub_identificator_van"),
+        help_text=get_help_text(
+            "klantinteracties.PartijIdentificator", "sub_identificator_van"
+        ),
     )
 
     class Meta:

src/openklant/components/klantinteracties/models/partijen.py

@@ -460,15 +460,14 @@ class Meta:
         ]
 
     def clean_sub_identificator_van(self):
-        if self.sub_identificator_van:
-            if self.sub_identificator_van == self:
-                raise ValidationError(
-                    {
-                        "sub_identificator_van": _(
-                            "Een `Partijidentificator` kan geen `subIdentificatorVan` zijn van zichzelf."
-                        )
-                    }
-                )
+        if self.sub_identificator_van and self.sub_identificator_van == self:
+            raise ValidationError(
+                {
+                    "sub_identificator_van": _(
+                        "Een `Partijidentificator` kan geen `subIdentificatorVan` zijn van zichzelf."
+                    )
+                }
+            )
 
     def save(self, *args, **kwargs):
         self.full_clean()

src/openklant/components/klantinteracties/models/tests/test_partijen.py

@@ -48,6 +48,17 @@ def test_valid_globally_unique(self):
             partij_identificator_code_register="hr",
         )
 
+        # different partij and different sub_identificator_van
+        partij_c = PartijFactory.create()
+        PartijIdentificator.objects.create(
+            partij=partij_c,
+            sub_identificator_van=partij_identificator_b,
+            partij_identificator_code_objecttype="vestiging",
+            partij_identificator_code_soort_object_id="vestigingsnummer",
+            partij_identificator_object_id="4567456745674567",
+            partij_identificator_code_register="hr",
+        )
+
         # different values same sub_identificator_van
         PartijIdentificator.objects.create(
             partij=partij_a,
@@ -107,20 +118,20 @@ def test_scoped_identificator_globally_unique(self):
         PartijIdentificator.objects.create(
             partij=partij,
             sub_identificator_van=sub_identificator_van,
-            partij_identificator_code_objecttype="natuurlijk_persoon",
-            partij_identificator_code_soort_object_id="bsn",
-            partij_identificator_object_id="123456782",
-            partij_identificator_code_register="brp",
+            partij_identificator_code_objecttype="vestiging",
+            partij_identificator_code_soort_object_id="vestigingsnummer",
+            partij_identificator_object_id="112233440001",
+            partij_identificator_code_register="hr",
         )
 
         with self.assertRaises(ValidationError) as error:
             PartijIdentificator.objects.create(
                 partij=partij,
                 sub_identificator_van=sub_identificator_van,
-                partij_identificator_code_objecttype="natuurlijk_persoon",
-                partij_identificator_code_soort_object_id="bsn",
-                partij_identificator_object_id="123456782",
-                partij_identificator_code_register="brp",
+                partij_identificator_code_objecttype="vestiging",
+                partij_identificator_code_soort_object_id="vestigingsnummer",
+                partij_identificator_object_id="112233440001",
+                partij_identificator_code_register="hr",
             )
         self.assertEqual(
             error.exception.message_dict,