2 files changed, 59 insertions, 0 deletions
diff --git a/tests/model_forms/models.py b/tests/model_forms/models.py
index f9441a4c77..4111fafd69 100644
--- a/tests/model_forms/models.py
+++ b/tests/model_forms/models.py
@@ -521,3 +521,24 @@ class Dice(models.Model):
         through=NumbersToDice,
         limit_choices_to=models.Q(value__gte=1),
     )
+
+
+class ConstraintsModel(models.Model):
+    name = models.CharField(max_length=100)
+    category = models.CharField(max_length=50, default="uncategorized")
+    price = models.DecimalField(max_digits=10, decimal_places=2, default=0)
+
+    class Meta:
+        constraints = [
+            models.UniqueConstraint(
+                "name",
+                "category",
+                name="unique_name_category",
+                violation_error_message="This product already exists.",
+            ),
+            models.CheckConstraint(
+                condition=models.Q(price__gt=0),
+                name="price_gte_zero",
+                violation_error_message="Price must be greater than zero.",
+            ),
+        ]
diff --git a/tests/model_forms/tests.py b/tests/model_forms/tests.py
index a432f6ce43..837466f07f 100644
--- a/tests/model_forms/tests.py
+++ b/tests/model_forms/tests.py
@@ -40,6 +40,7 @@ from .models import (
     Character,
     Colour,
     ColourfulItem,
+    ConstraintsModel,
     CustomErrorMessage,
     CustomFF,
     CustomFieldForExclusionModel,
@@ -3718,3 +3719,40 @@ class ModelToDictTests(TestCase):
         # If data were a QuerySet, it would be reevaluated here and give "red"
         # instead of the original value.
         self.assertEqual(data, [blue])
+
+
+class ConstraintValidationTests(TestCase):
+    def test_unique_constraint_refs_excluded_field(self):
+        obj = ConstraintsModel.objects.create(name="product", price="1.00")
+        data = {
+            "id": "",
+            "name": obj.name,
+            "price": "1337.00",
+            "category": obj.category,
+        }
+        ConstraintsModelForm = modelform_factory(ConstraintsModel, fields="__all__")
+        ExcludeCategoryForm = modelform_factory(ConstraintsModel, exclude=["category"])
+        full_form = ConstraintsModelForm(data)
+        exclude_category_form = ExcludeCategoryForm(data)
+        self.assertTrue(exclude_category_form.is_valid())
+        self.assertFalse(full_form.is_valid())
+        self.assertEqual(
+            full_form.errors, {"__all__": ["This product already exists."]}
+        )
+
+    def test_check_constraint_refs_excluded_field(self):
+        data = {
+            "id": "",
+            "name": "priceless",
+            "price": "0.00",
+            "category": "category 1",
+        }
+        ConstraintsModelForm = modelform_factory(ConstraintsModel, fields="__all__")
+        ExcludePriceForm = modelform_factory(ConstraintsModel, exclude=["price"])
+        full_form = ConstraintsModelForm(data)
+        exclude_price_form = ExcludePriceForm(data)
+        self.assertTrue(exclude_price_form.is_valid())
+        self.assertFalse(full_form.is_valid())
+        self.assertEqual(
+            full_form.errors, {"__all__": ["Price must be greater than zero."]}
+        )