[fix] Fixes QA issues

Author: pandafy

openwisp_radius/admin.py

@@ -547,7 +547,8 @@ def get_unique_error_message(self, unique_check):
         # domain-specific, user-friendly error that matches our constraint.
         if unique_check == ("user", "organization"):
             return _(
-                "A user cannot have more than one registration record in the same organization."
+                "A user cannot have more than one registration record in the"
+                " same organization."
             )
 
 

openwisp_radius/tests/test_migrations.py

@@ -317,7 +317,7 @@ def test_multitenant_reverse_method_priority_ordering(self):
         org3 = self._create_org(name="method-org-3", slug="method-org-3")
         modified_base = timezone.now()
         # All unverified, same timestamp - method should decide
-        org_empty = RegisteredUser.objects.create(
+        RegisteredUser.objects.create(
             user=user,
             organization=org1,
             is_verified=False,

tests/openwisp2/sample_radius/migrations/0032_registered_user_multitenant.py

@@ -207,6 +207,10 @@ class Migration(migrations.Migration):
             constraint=models.UniqueConstraint(
                 fields=["user", "organization"],
                 name="unique_registered_user_per_org",
+                violation_error_message=(
+                    "A user cannot have more than one registration"
+                    " record in the same organization."
+                ),
             ),
         ),
         migrations.AddConstraint(
@@ -215,6 +219,10 @@ class Migration(migrations.Migration):
                 fields=["user"],
                 condition=models.Q(organization__isnull=True),
                 name="unique_global_registered_user",
+                violation_error_message=(
+                    "A user cannot have more than one registration"
+                    " record in the same organization."
+                ),
             ),
         ),
     ]