test(itim): Port Note Model Checks

ref: #525 closes #536

app/itim/tests/unit/port_notes/test_unit_port_notes_model.py

@@ -0,0 +1,37 @@
+from django.contrib.contenttypes.models import ContentType
+from django.test import TestCase
+
+from core.tests.abstract.test_unit_model_notes_model import ModelNotesModel
+
+from itim.models.port_notes import PortNotes
+
+
+
+class PortNotesModel(
+    ModelNotesModel,
+    TestCase,
+):
+
+    model = PortNotes
+
+
+    @classmethod
+    def setUpTestData(self):
+        """Setup Test"""
+
+        super().setUpTestData()
+
+
+        self.item = self.model.objects.create(
+            organization = self.organization,
+            content = 'a random comment for an exiting item',
+            content_type = ContentType.objects.get(
+                app_label = str(self.model._meta.app_label).lower(),
+                model = str(self.model.model.field.related_model.__name__).replace(' ', '').lower(),
+            ),
+            model = self.model.model.field.related_model.objects.create(
+                organization = self.organization,
+                number = 22,
+            ),
+            created_by = self.user,
+        )