Refs #31055 -- Made long column names checks support databases aware.

1 files changed, 9 insertions, 4 deletions

diff --git a/tests/invalid_models_tests/test_models.py b/tests/invalid_models_tests/test_models.py
index 438c327003..9fd7058b20 100644
--- a/tests/invalid_models_tests/test_models.py
+++ b/tests/invalid_models_tests/test_models.py
@@ -1,6 +1,5 @@
 import unittest
 
-from django.conf import settings
 from django.core.checks import Error, Warning
 from django.core.checks.model_checks import _check_lazy_references
 from django.db import connection, connections, models
@@ -18,7 +17,7 @@ def get_max_column_name_length():
     allowed_len = None
     db_alias = None
 
-    for db in settings.DATABASES:
+    for db in ('default', 'other'):
         connection = connections[db]
         max_name_length = connection.ops.max_name_length()
         if max_name_length is not None and not connection.features.truncates_names:
@@ -408,7 +407,7 @@ class FieldNamesTests(SimpleTestCase):
             db_column=long_field_name
         ).contribute_to_class(m2mcomplex, long_field_name)
 
-        errors = ModelWithLongField.check()
+        errors = ModelWithLongField.check(databases=('default', 'other'))
 
         # First error because of M2M field set on the model with long name.
         m2m_long_name = "verylongmodelnamezzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz_id"
@@ -446,6 +445,9 @@ class FieldNamesTests(SimpleTestCase):
         )
 
         self.assertEqual(errors, expected)
+        # Check for long column names is called only for specified database
+        # aliases.
+        self.assertEqual(ModelWithLongField.check(databases=None), [])
 
     @unittest.skipIf(max_column_name_length is None, "The database doesn't have a column name length limit.")
     def test_local_field_long_column_name(self):
@@ -462,7 +464,7 @@ class FieldNamesTests(SimpleTestCase):
         long_field_name2 = 'b' * (self.max_column_name_length + 1)
         models.CharField(max_length=11).contribute_to_class(ModelWithLongField, long_field_name)
         models.CharField(max_length=11, db_column='vlmn').contribute_to_class(ModelWithLongField, long_field_name2)
-        self.assertEqual(ModelWithLongField.check(), [
+        self.assertEqual(ModelWithLongField.check(databases=('default', 'other')), [
             Error(
                 'Autogenerated column name too long for field "%s". '
                 'Maximum length is "%s" for database "%s".'
@@ -472,6 +474,9 @@ class FieldNamesTests(SimpleTestCase):
                 id='models.E018',
             )
         ])
+        # Check for long column names is called only for specified database
+        # aliases.
+        self.assertEqual(ModelWithLongField.check(databases=None), [])
 
     def test_including_separator(self):
         class Model(models.Model):