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_archive.py

@@ -100,6 +100,54 @@ def test_invalid_all_empty(authenticated_client: Client,
     assert 'canhazconfirm' in result.context['form'].errors
 
 
+@pytest.mark.django_db
+def test_archived(authenticated_client: Client,
+                  archived_association_out,
+                  ):
+    # When
+    result = authenticated_client.post(
+        reverse('ui.associations.archive', args=(archived_association_out.pk,)),
+        data={
+            'canhazconfirm': 'hai',
+        },
+    )
+
+    # 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.archive', args=(deleted_association_out.pk,)),
+        data={
+            'canhazconfirm': 'hai',
+        },
+    )
+
+    # 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.archive', args=(null_uuid,)),
+        data={
+            'canhazconfirm': 'hai',
+        },
+    )
+
+    # 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,