Fixed #17542 -- Gracefully handle errors when checking if the values of a SelectDateWidget has changed if it's not required. Thanks, pigletto.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@17436 bcc190cf-cafb-0310-a4f2-bffc1f526a37

1 files changed, 12 insertions, 0 deletions

diff --git a/tests/regressiontests/forms/tests/extra.py b/tests/regressiontests/forms/tests/extra.py
index 3c5dfabb61..c873af7a8c 100644
--- a/tests/regressiontests/forms/tests/extra.py
+++ b/tests/regressiontests/forms/tests/extra.py
@@ -18,6 +18,9 @@ from .error_messages import AssertFormErrorsMixin
 class GetDate(Form):
     mydate = DateField(widget=SelectDateWidget)
 
+class GetNotRequiredDate(Form):
+    mydate = DateField(widget=SelectDateWidget, required=False)
+
 class GetDateShowHiddenInitial(Form):
     mydate = DateField(widget=SelectDateWidget, show_hidden_initial=True)
 
@@ -619,6 +622,15 @@ class FormsExtraTestCase(TestCase, AssertFormErrorsMixin):
         self.assertTrue(FormWithFile().is_multipart())
         self.assertTrue(FormWithImage().is_multipart())
 
+    def test_field_not_required(self):
+        b = GetNotRequiredDate({
+            'mydate_year': '',
+            'mydate_month': '',
+            'mydate_day': ''
+        })
+        self.assertFalse(b.has_changed())
+
+
 
 class FormsExtraL10NTestCase(TestCase):
     def setUp(self):