test(itim): Cluster Serializer Validation checks

ref: #15 #248 #353

app/itim/tests/unit/cluster/test_cluster_serializer.py

@@ -0,0 +1,74 @@
+import pytest
+
+from django.test import TestCase
+
+from rest_framework.exceptions import ValidationError
+
+from access.models import Organization
+
+from itim.serializers.cluster import Cluster, ClusterModelSerializer
+
+
+
+class ClusterValidationAPI(
+    TestCase,
+):
+
+    model = Cluster
+
+    @classmethod
+    def setUpTestData(self):
+        """Setup Test
+
+        1. Create an org
+        2. Create an item
+        """
+
+        organization = Organization.objects.create(name='test_org')
+
+        self.organization = organization
+
+        self.item = self.model.objects.create(
+            organization=organization,
+            name = 'os name',
+        )
+
+
+
+    def test_serializer_validation_no_name(self):
+        """Serializer Validation Check
+
+        Ensure that if creating and no name is provided a validation error occurs
+        """
+
+        with pytest.raises(ValidationError) as err:
+
+            serializer = ClusterModelSerializer(data={
+                "organization": self.organization.id,
+            })
+
+            serializer.is_valid(raise_exception = True)
+
+        assert err.value.get_codes()['name'][0] == 'required'
+
+
+
+    def test_serializer_validation_self_not_parent(self):
+        """Serializer Validation Check
+
+        Ensure that if assiging itself as parent a validation error occurs
+        """
+
+        with pytest.raises(ValidationError) as err:
+
+            serializer = ClusterModelSerializer(
+                self.item,
+                data={
+                    "parent_cluster": self.item.id,
+                },
+                partial = True
+            )
+
+            serializer.is_valid(raise_exception = True)
+
+        assert err.value.get_codes()['parent_cluster'] == 'parent_not_self'