From 5c343ae3e63552e9d49341b2f46e70a717d500ed Mon Sep 17 00:00:00 2001
From: Jody McIntyre <scjody@modernduck.com>
Date: Fri, 17 Jun 2016 15:10:57 -0400
Subject: [PATCH] Add failing test of deepcopy issue in is_valid

---
 tests/test_serializer.py | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/tests/test_serializer.py b/tests/test_serializer.py
index 741c6ab17..f17aa8aff 100644
--- a/tests/test_serializer.py
+++ b/tests/test_serializer.py
@@ -5,6 +5,9 @@ import pickle
 
 import pytest
 
+from django.core.validators import RegexValidator
+from django.db import models
+
 from rest_framework import serializers
 from rest_framework.compat import unicode_repr
 
@@ -87,6 +90,25 @@ class TestValidateMethod:
         assert not serializer.is_valid()
         assert serializer.errors == {'char': ['Field error']}
 
+    def test_serializer_with_validator(self):
+        class ExampleModel(models.Model):
+            username = models.CharField(max_length=100)
+
+        class ExampleSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = ExampleModel
+                fields = '__all__'
+                extra_kwargs = {
+                    'username': {
+                        'validators': [
+                            RegexValidator('^\w+$'),
+                        ],
+                    },
+                }
+
+        serializer = ExampleSerializer(data={})
+        serializer.is_valid()
+
 
 class TestBaseSerializer:
     def setup(self):