1 files changed, 62 insertions, 0 deletions
diff --git a/tests/invalid_models_tests/test_deprecated_fields.py b/tests/invalid_models_tests/test_deprecated_fields.py
index 3f3953496c..7b1e3fb7ac 100644
--- a/tests/invalid_models_tests/test_deprecated_fields.py
+++ b/tests/invalid_models_tests/test_deprecated_fields.py
@@ -85,3 +85,65 @@ class DeprecatedFieldsTests(SimpleTestCase):
                 ),
             ],
         )
+
+    @skipUnless(connection.vendor == "postgresql", "PostgreSQL specific SQL")
+    def test_postgres_ci_fields_deprecated(self):
+        from django.contrib.postgres.fields import (
+            ArrayField,
+            CICharField,
+            CIEmailField,
+            CITextField,
+        )
+
+        class PostgresCIFieldsModel(models.Model):
+            ci_char = CICharField(max_length=255)
+            ci_email = CIEmailField()
+            ci_text = CITextField()
+            array_ci_text = ArrayField(CITextField())
+
+        self.assertEqual(
+            PostgresCIFieldsModel.check(),
+            [
+                checks.Warning(
+                    "django.contrib.postgres.fields.CICharField is deprecated. Support "
+                    "for it (except in historical migrations) will be removed in "
+                    "Django 5.1.",
+                    hint=(
+                        'Use CharField(db_collation="…") with a case-insensitive '
+                        "non-deterministic collation instead."
+                    ),
+                    obj=PostgresCIFieldsModel._meta.get_field("ci_char"),
+                    id="fields.W905",
+                ),
+                checks.Warning(
+                    "django.contrib.postgres.fields.CIEmailField is deprecated. "
+                    "Support for it (except in historical migrations) will be removed "
+                    "in Django 5.1.",
+                    hint=(
+                        'Use EmailField(db_collation="…") with a case-insensitive '
+                        "non-deterministic collation instead."
+                    ),
+                    obj=PostgresCIFieldsModel._meta.get_field("ci_email"),
+                    id="fields.W906",
+                ),
+                checks.Warning(
+                    "django.contrib.postgres.fields.CITextField is deprecated. Support "
+                    "for it (except in historical migrations) will be removed in "
+                    "Django 5.1.",
+                    hint=(
+                        'Use TextField(db_collation="…") with a case-insensitive '
+                        "non-deterministic collation instead."
+                    ),
+                    obj=PostgresCIFieldsModel._meta.get_field("ci_text"),
+                    id="fields.W907",
+                ),
+                checks.Warning(
+                    "Base field for array has warnings:\n"
+                    "    django.contrib.postgres.fields.CITextField is deprecated. "
+                    "Support for it (except in historical migrations) will be removed "
+                    "in Django 5.1. (fields.W907)",
+                    obj=PostgresCIFieldsModel._meta.get_field("array_ci_text"),
+                    id="postgres.W004",
+                ),
+            ],
+        )