second round of review

backend/tests/helpers.py

@@ -0,0 +1,7 @@
+import uuid
+
+
+def unique_email(prefix: str = "test") -> str:
+    """Generate a unique email for tests sharing the same database."""
+    return f"{prefix}-{uuid.uuid4().hex[:8]}@example.com"
+

backend/tests/test_auth.py

@@ -1,12 +1,7 @@
 import pytest
-import uuid
 
 from auth import COOKIE_NAME
-
-
-def unique_email(prefix: str = "test") -> str:
-    """Generate a unique email for tests sharing the same database."""
-    return f"{prefix}-{uuid.uuid4().hex[:8]}@example.com"
+from tests.helpers import unique_email
 
 
 # Registration tests

backend/tests/test_counter.py

@@ -1,12 +1,7 @@
 import pytest
-import uuid
 
 from auth import COOKIE_NAME
-
-
-def unique_email(prefix: str = "counter") -> str:
-    """Generate a unique email for tests sharing the same database."""
-    return f"{prefix}-{uuid.uuid4().hex[:8]}@example.com"
+from tests.helpers import unique_email
 
 
 # Protected endpoint tests - without auth