Fix signature tests

fixes: pulp#1035

CHANGES/1035.misc

@@ -0,0 +1 @@
+Fixed signature task to use new pulpcore 3.20 methods.

pulp_ansible/app/tasks/collections.py

@@ -310,6 +310,7 @@ def import_collection(
                 artifact_file, filename=filename, file_url=url, logger=user_facing_logger
             )
             artifact = Artifact.from_pulp_temporary_file(temp_file)
+            temp_file = None
             importer_result["artifact_url"] = reverse("artifacts-detail", args=[artifact.pk])
             collection_version = create_collection_from_importer(importer_result)
             collection_version.manifest = manifest_data
@@ -318,11 +319,13 @@ def import_collection(
 
     except ImporterError as exc:
         log.info(f"Collection processing was not successful: {exc}")
-        temp_file.delete()
+        if temp_file:
+            temp_file.delete()
         raise
     except Exception as exc:
         user_facing_logger.error(f"Collection processing was not successful: {exc}")
-        temp_file.delete()
+        if temp_file:
+            temp_file.delete()
         raise
 
     ContentArtifact.objects.create(

pulp_ansible/app/viewsets.py

@@ -12,7 +12,7 @@
 from rest_framework.parsers import FormParser, MultiPartParser
 from rest_framework.serializers import ValidationError as DRFValidationError
 
-from pulpcore.plugin.actions import ModifyRepositoryActionMixin
+from pulpcore.plugin.actions import ModifyRepositoryActionMixin, raise_for_unknown_content_units
 from pulpcore.plugin.exceptions import DigestValidationError
 from pulpcore.plugin.models import PulpTemporaryFile, RepositoryVersion
 from pulpcore.plugin.serializers import AsyncOperationResponseSerializer
@@ -357,7 +357,7 @@ def sign(self, request, pk):
                 content_units[NamedModelViewSet.extract_pk(url)] = url
             content_units_pks = list(content_units.keys())
             existing_content_units = CollectionVersion.objects.filter(pk__in=content_units_pks)
-            self.verify_content_units(existing_content_units, content_units)
+            raise_for_unknown_content_units(existing_content_units, content_units)
 
         result = dispatch(
             sign,