BTHLABS-61: Service layer refactoring

A journey to fix `ValidationError` in Pocket imports turned service
layer refactoring :D

services/backend/tests/ui/views/associations/test_edit.py

@@ -47,10 +47,10 @@ def test_ok(authenticated_client: Client,
 
 
 @pytest.mark.django_db
-def test_invalid_all_empty(authenticated_client: Client,
-                           association_out,
-                           payload,
-                           ):
+def test_all_empty(authenticated_client: Client,
+                   association_out,
+                   payload,
+                   ):
     # Given
     effective_payload = {
         key: ''
@@ -79,9 +79,9 @@ def test_invalid_all_empty(authenticated_client: Client,
 
 
 @pytest.mark.django_db
-def test_invalid_all_missing(authenticated_client: Client,
-                             association_out,
-                             ):
+def test_all_missing(authenticated_client: Client,
+                     association_out,
+                     ):
     # Given
     effective_payload = {}
 
@@ -105,6 +105,45 @@ def test_invalid_all_missing(authenticated_client: Client,
     )
 
 
+@pytest.mark.django_db
+def test_archived(authenticated_client: Client,
+                  archived_association_out,
+                  ):
+    # When
+    result = authenticated_client.post(
+        reverse('ui.associations.edit', args=(archived_association_out.pk,)),
+    )
+
+    # Then
+    assert result.status_code == http.HTTPStatus.NOT_FOUND
+
+
+@pytest.mark.django_db
+def test_deleted(authenticated_client: Client,
+                 deleted_association_out,
+                 ):
+    # When
+    result = authenticated_client.post(
+        reverse('ui.associations.edit', args=(deleted_association_out.pk,)),
+    )
+
+    # Then
+    assert result.status_code == http.HTTPStatus.NOT_FOUND
+
+
+@pytest.mark.django_db
+def test_not_found(authenticated_client: Client,
+                   null_uuid,
+                   ):
+    # When
+    result = authenticated_client.post(
+        reverse('ui.associations.edit', args=(null_uuid,)),
+    )
+
+    # Then
+    assert result.status_code == http.HTTPStatus.NOT_FOUND
+
+
 @pytest.mark.django_db
 def test_other_account_association(authenticated_client: Client,
                                    other_account_association_out,