From 36e1987f598a5a21a788e931c1ecb13e4c0d0ad8 Mon Sep 17 00:00:00 2001
From: Yuri Prezument
Date: Tue, 25 Dec 2012 18:50:00 +0200
Subject: Regression test for #532 - values overriden by "default" setting

---
 rest_framework/tests/serializer.py | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

(limited to 'rest_framework/tests/serializer.py')

diff --git a/rest_framework/tests/serializer.py b/rest_framework/tests/serializer.py
index f780e811..aac1f68a 100644
--- a/rest_framework/tests/serializer.py
+++ b/rest_framework/tests/serializer.py
@@ -340,7 +340,6 @@ class ModelValidationTests(TestCase):
         self.assertTrue(photo_serializer.save())
 
 
-
 class RegexValidationTest(TestCase):
     def test_create_failed(self):
         serializer = BookSerializer(data={'isbn': '1234567890'})
@@ -551,6 +550,21 @@ class DefaultValueTests(TestCase):
         self.assertEquals(instance.pk, 1)
         self.assertEquals(instance.text, 'overridden')
 
+    def test_partial_update_default(self):
+        """ Regression test for issue #532 """
+        data = {'text': 'overridden'}
+        serializer = self.serializer_class(data=data, partial=True)
+        self.assertEquals(serializer.is_valid(), True)
+        instance = serializer.save()
+
+        data = {'extra': 'extra_value'}
+        serializer = self.serializer_class(instance=instance, data=data, partial=True)
+        self.assertEquals(serializer.is_valid(), True)
+        instance = serializer.save()
+
+        self.assertEquals(instance.extra, 'extra_value')
+        self.assertEquals(instance.text, 'overridden')
+
 
 class CallableDefaultValueTests(TestCase):
     def setUp(self):
-- 
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