def test_clear_input_checked_returns_false_only_if_not_required(self):
"""
ClearableFileInput.value_from_datadict never returns False if the field
is required.
"""
widget = ClearableFileInput()
widget.is_required = True
field = SimpleUploadedFile("something.txt", b"content")
value = widget.value_from_datadict(data={"myfile-clear": True}, files={"myfile": field}, name="myfile")
self.assertEqual(value, field)
def test_clear_input_renders_only_if_not_required(self):
"""
A ClearableFileInput with is_required=False does not render a clear
checkbox.
"""
widget = ClearableFileInput()
widget.is_required = True
self.check_html(widget, 'myfile', FakeFieldFile(), html=(
"""
Currently: <a href="something">something</a> <br>
Change: <input type="file" name="myfile">
"""
))
def test_clear_input_checked_returns_false_only_if_not_required(self):
"""
ClearableFileInput.value_from_datadict never returns False if the field
is required.
"""
widget = ClearableFileInput()
widget.is_required = True
field = SimpleUploadedFile('something.txt', b'content')
value = widget.value_from_datadict(
data={'myfile-clear': True},
files={'myfile': field},
name='myfile',
)
self.assertEqual(value, field)
def test_clear_input_renders_only_if_not_required(self):
"""
A ClearableFileInput with is_required=True does not render a clear
checkbox.
"""
widget = ClearableFileInput()
widget.is_required = True
self.check_html(
widget,
"myfile",
FakeFieldFile(),
html=("""
Currently: <a href="something">something</a> <br>
Change: <input type="file" name="myfile">
"""),
)