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[1.11.x] Fixed #27805 -- Fixed ClearableFileInput's "Clear" checkbox on model fields with a default.

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Backport of 4353640ea9 from master
This commit is contained in:
Tim Graham
2017-02-03 11:11:39 -05:00
parent f14899412d
commit 2b17e4770b
3 changed files with 14 additions and 1 deletions
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6
tests/forms_tests/widget_tests/test_clearablefileinput.py
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@@ -149,3 +149,9 @@ class ClearableFileInputTest(WidgetTest):
# user to keep the existing, initial value.
self.assertIs(self.widget.use_required_attribute(None), True)
self.assertIs(self.widget.use_required_attribute('resume.txt'), False)
def test_value_omitted_from_data(self):
widget = ClearableFileInput()
self.assertIs(widget.value_omitted_from_data({}, {}, 'field'), True)
self.assertIs(widget.value_omitted_from_data({}, {'field': 'x'}, 'field'), False)
self.assertIs(widget.value_omitted_from_data({'field-clear': 'y'}, {}, 'field'), False)