Fixed #30397 -- Added app_label/class interpolation for names of indexes and constraints.

tests/constraints/models.py

@@ -13,6 +13,10 @@ class Product(models.Model):
                 check=models.Q(price__gt=models.F('discounted_price')),
                 name='price_gt_discounted_price',
             ),
+            models.CheckConstraint(
+                check=models.Q(price__gt=0),
+                name='%(app_label)s_%(class)s_price_gt_0',
+            ),
             models.UniqueConstraint(fields=['name', 'color'], name='name_color_uniq'),
             models.UniqueConstraint(
                 fields=['name'],
@@ -20,3 +24,20 @@ class Product(models.Model):
                 condition=models.Q(color__isnull=True),
             ),
         ]
+
+
+class AbstractModel(models.Model):
+    age = models.IntegerField()
+
+    class Meta:
+        abstract = True
+        constraints = [
+            models.CheckConstraint(
+                check=models.Q(age__gte=18),
+                name='%(app_label)s_%(class)s_adult',
+            ),
+        ]
+
+
+class ChildModel(AbstractModel):
+    pass

tests/constraints/tests.py

@@ -3,7 +3,7 @@ from django.db import IntegrityError, connection, models
 from django.db.models.constraints import BaseConstraint
 from django.test import SimpleTestCase, TestCase, skipUnlessDBFeature
 
-from .models import Product
+from .models import ChildModel, Product
 
 
 def get_constraints(table):
@@ -76,8 +76,17 @@ class CheckConstraintTests(TestCase):
     @skipUnlessDBFeature('supports_table_check_constraints')
     def test_name(self):
         constraints = get_constraints(Product._meta.db_table)
-        expected_name = 'price_gt_discounted_price'
-        self.assertIn(expected_name, constraints)
+        for expected_name in (
+            'price_gt_discounted_price',
+            'constraints_product_price_gt_0',
+        ):
+            with self.subTest(expected_name):
+                self.assertIn(expected_name, constraints)
+
+    @skipUnlessDBFeature('supports_table_check_constraints')
+    def test_abstract_name(self):
+        constraints = get_constraints(ChildModel._meta.db_table)
+        self.assertIn('constraints_childmodel_adult', constraints)
 
 
 class UniqueConstraintTests(TestCase):