def test_dateField_with_inputformat(self):
        f = forms.DateField(input_formats=["%m.%d.%Y", "%m-%d-%Y"])
        # Parse a date in an unaccepted format; get an error
        self.assertRaises(forms.ValidationError, f.clean, '21.12.2010')
        self.assertRaises(forms.ValidationError, f.clean, '2010-12-21')

        # Parse a date in a valid format, get a parsed result
        result = f.clean('12.21.2010')
        self.assertEqual(result, date(2010,12,21))

        # Check that the parsed result does a round trip to the same format
        text = f.widget._format_value(result)
        self.assertEqual(text, "21.12.2010")

        # Parse a date in a valid format, get a parsed result
        result = f.clean('12-21-2010')
        self.assertEqual(result, date(2010,12,21))

        # Check that the parsed result does a round trip to default format
        text = f.widget._format_value(result)
        self.assertEqual(text, "21.12.2010")
DateFields with manually specified input formats can accept those formats
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/tests/regressiontests/forms/tests/input_formats.py/CustomDateInputFormatsTests.test_dateField_with_inputformat