Add organizations v2 API and registry enrichment

tests/apps/organizations/test_models.py

@@ -0,0 +1,57 @@
+"""Tests for organizations models."""
+
+from django.test import TestCase
+from organizations.models import Organization
+
+
+class OrganizationModelTest(TestCase):
+    """Checks canonical organization model constraints and rendering."""
+
+    def test_legal_entity_can_store_kpp_and_ogrn_without_ogrip(self):
+        organization = Organization.objects.create(
+            name='ООО "Ромашка"',
+            inn="7707083893",
+            kpp="770701001",
+            ogrn="1027700132195",
+        )
+
+        self.assertIsNotNone(organization.uid)
+        self.assertEqual(organization.ogrip, "")
+        self.assertEqual(str(organization), 'ООО "Ромашка" (7707083893)')
+
+    def test_individual_entrepreneur_can_store_ogrip_without_kpp_and_ogrn(self):
+        organization = Organization.objects.create(
+            name="ИП Иванов Иван Иванович",
+            inn="500100732259",
+            ogrip="304500116000157",
+        )
+
+        self.assertEqual(organization.kpp, "")
+        self.assertEqual(organization.ogrn, "")
+        self.assertEqual(organization.ogrip, "304500116000157")
+
+    def test_legal_entities_can_share_inn_with_different_kpp(self):
+        Organization.objects.create(
+            name='ООО "Ромашка" головной офис',
+            inn="7707083893",
+            kpp="770701001",
+            ogrn="1027700132195",
+        )
+
+        branch = Organization.objects.create(
+            name='ООО "Ромашка" филиал',
+            inn="7707083893",
+            kpp="780101001",
+            ogrn="1027700132195",
+        )
+
+        self.assertEqual(branch.inn, "7707083893")
+        self.assertEqual(branch.kpp, "780101001")
+
+    def test_name_only_organization_is_allowed(self):
+        organization = Organization.objects.create(
+            name="Общество с ограниченной ответственностью Ромашка",
+        )
+
+        self.assertEqual(organization.inn, "")
+        self.assertEqual(organization.name, "Общество с ограниченной ответственностью Ромашка")