Additional coverage and related bug fix

primed/dbgap/tests/test_views.py

@@ -4986,17 +4986,17 @@ def test_access_without_user_permission(self):
             self.get_view()(request)
 
     def test_dbgap_application_does_not_exist(self):
+        """Raises a 404 error with an invalid object dbgap_application_pk."""
         dbgap_workspace = factories.dbGaPWorkspaceFactory.create()
-        request = self.factory.get(
+        self.client.force_login(self.user)
+        response = self.client.get(
             self.get_url(
                 1,
                 dbgap_workspace.workspace.billing_project.name,
                 dbgap_workspace.workspace.name,
             )
         )
-        request.user = self.user
-        with self.assertRaises(Http404):
-            self.get_view()(request)
+        self.assertEqual(response.status_code, 404)
 
     def test_billing_project_does_not_exist(self):
         dbgap_application = factories.dbGaPApplicationFactory.create()

primed/dbgap/views.py

@@ -693,10 +693,7 @@ def get_dbgap_application(self, queryset=None):
                 dbgap_project_id=self.kwargs.get("dbgap_project_id")
             )
         except models.dbGaPApplication.DoesNotExist:
-            raise Http404(
-                "No %(verbose_name)s found matching the query"
-                % {"verbose_name": queryset.model._meta.verbose_name}
-            )
+            raise Http404("No dbGaPApplications found matching the query")
         return obj
 
     def get_audit_result(self):