diff --git a/backend/tests/test_model_member.py b/backend/tests/test_model_member.py
index a070e2d..1df1fc0 100644
--- a/backend/tests/test_model_member.py
+++ b/backend/tests/test_model_member.py
@@ -1,3 +1,6 @@
+import pytest
+from psycopg.errors import UniqueViolation
+
 from src.neo_neo_todo.models.member import (
     insert_member,
     select_member_by_email,
@@ -25,3 +28,8 @@ async def test_model_member_insert(db_pool):
     assert member.id == 2
     assert member.email == "member_inserted@todo.test"
     assert member.password_hash == "alkasdjfhasldkfjh12341238989"
+
+    with pytest.raises(UniqueViolation):
+        await insert_member(
+            db_pool, "Member_inserted@todo.test", "alkasdjfhasldkfjh12341238989"
+        )