diff --git a/netbox/utilities/testing/views.py b/netbox/utilities/testing/views.py
index c451649ff..525a5d5ff 100644
--- a/netbox/utilities/testing/views.py
+++ b/netbox/utilities/testing/views.py
@@ -14,7 +14,7 @@ from netbox.choices import CSVDelimiterChoices, ImportFormatChoices
 from netbox.models.features import ChangeLoggingMixin, CustomFieldsMixin
 from users.models import ObjectPermission
 from .base import ModelTestCase
-from .utils import add_custom_field_data, disable_warnings, post_data
+from .utils import add_custom_field_data, disable_warnings, get_random_string, post_data
 
 __all__ = (
     'ModelViewTestCase',
@@ -169,6 +169,11 @@ class ViewTestCases:
             if issubclass(self.model, CustomFieldsMixin):
                 add_custom_field_data(self.form_data, self.model)
 
+            # If supported, add a changelog message
+            if issubclass(self.model, ChangeLoggingMixin):
+                if 'changelog_message' not in self.form_data:
+                    self.form_data['changelog_message'] = get_random_string(10)
+
             # Try POST with model-level permission
             initial_count = self._get_queryset().count()
             request = {
@@ -181,13 +186,14 @@ class ViewTestCases:
             self.assertInstanceEqual(instance, self.form_data, exclude=self.validation_excluded_fields)
 
             # Verify ObjectChange creation
-            if issubclass(instance.__class__, ChangeLoggingMixin):
+            if issubclass(self.model, ChangeLoggingMixin):
                 objectchanges = ObjectChange.objects.filter(
                     changed_object_type=ContentType.objects.get_for_model(instance),
                     changed_object_id=instance.pk
                 )
                 self.assertEqual(len(objectchanges), 1)
                 self.assertEqual(objectchanges[0].action, ObjectChangeActionChoices.ACTION_CREATE)
+                self.assertEqual(objectchanges[0].message, self.form_data['changelog_message'])
 
         @override_settings(EXEMPT_VIEW_PERMISSIONS=['*'], EXEMPT_EXCLUDE_MODELS=[])
         def test_create_object_with_constrained_permission(self):
@@ -272,6 +278,11 @@ class ViewTestCases:
             if issubclass(self.model, CustomFieldsMixin):
                 add_custom_field_data(self.form_data, self.model)
 
+            # If supported, add a changelog message
+            if issubclass(self.model, ChangeLoggingMixin):
+                if 'changelog_message' not in self.form_data:
+                    self.form_data['changelog_message'] = get_random_string(10)
+
             # Try POST with model-level permission
             request = {
                 'path': self._get_url('edit', instance),
@@ -282,13 +293,14 @@ class ViewTestCases:
             self.assertInstanceEqual(instance, self.form_data, exclude=self.validation_excluded_fields)
 
             # Verify ObjectChange creation
-            if issubclass(instance.__class__, ChangeLoggingMixin):
+            if issubclass(self.model, ChangeLoggingMixin):
                 objectchanges = ObjectChange.objects.filter(
                     changed_object_type=ContentType.objects.get_for_model(instance),
                     changed_object_id=instance.pk
                 )
                 self.assertEqual(len(objectchanges), 1)
                 self.assertEqual(objectchanges[0].action, ObjectChangeActionChoices.ACTION_UPDATE)
+                self.assertEqual(objectchanges[0].message, self.form_data['changelog_message'])
 
         @override_settings(EXEMPT_VIEW_PERMISSIONS=['*'], EXEMPT_EXCLUDE_MODELS=[])
         def test_edit_object_with_constrained_permission(self):
@@ -348,6 +360,7 @@ class ViewTestCases:
         @override_settings(EXEMPT_VIEW_PERMISSIONS=['*'])
         def test_delete_object_with_permission(self):
             instance = self._get_queryset().first()
+            form_data = {'confirm': True}
 
             # Assign model-level permission
             obj_perm = ObjectPermission(
@@ -361,23 +374,28 @@ class ViewTestCases:
             # Try GET with model-level permission
             self.assertHttpStatus(self.client.get(self._get_url('delete', instance)), 200)
 
+            # If supported, add a changelog message
+            if issubclass(self.model, ChangeLoggingMixin):
+                form_data['changelog_message'] = get_random_string(10)
+
             # Try POST with model-level permission
             request = {
                 'path': self._get_url('delete', instance),
-                'data': post_data({'confirm': True}),
+                'data': post_data(form_data),
             }
             self.assertHttpStatus(self.client.post(**request), 302)
             with self.assertRaises(ObjectDoesNotExist):
                 self._get_queryset().get(pk=instance.pk)
 
             # Verify ObjectChange creation
-            if issubclass(instance.__class__, ChangeLoggingMixin):
+            if issubclass(self.model, ChangeLoggingMixin):
                 objectchanges = ObjectChange.objects.filter(
                     changed_object_type=ContentType.objects.get_for_model(instance),
                     changed_object_id=instance.pk
                 )
                 self.assertEqual(len(objectchanges), 1)
                 self.assertEqual(objectchanges[0].action, ObjectChangeActionChoices.ACTION_DELETE)
+                self.assertEqual(objectchanges[0].message, form_data['changelog_message'])
 
         @override_settings(EXEMPT_VIEW_PERMISSIONS=['*'])
         def test_delete_object_with_constrained_permission(self):