108 lines
3.7 KiB
Python
108 lines
3.7 KiB
Python
from django.core.files.uploadedfile import SimpleUploadedFile
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from django.forms import ClearableFileInput
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from django.utils import six
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from django.utils.encoding import python_2_unicode_compatible
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from .base import WidgetTest
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@python_2_unicode_compatible
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class FakeFieldFile(object):
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"""
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Quacks like a FieldFile (has a .url and unicode representation), but
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doesn't require us to care about storages etc.
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"""
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url = 'something'
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def __str__(self):
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return self.url
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class ClearableFileInputTest(WidgetTest):
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widget = ClearableFileInput()
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def test_clear_input_renders(self):
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"""
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A ClearableFileInput with is_required False and rendered with an
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initial value that is a file renders a clear checkbox.
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"""
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self.check_html(self.widget, 'myfile', FakeFieldFile(), html=(
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"""
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Currently: <a href="something">something</a>
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<input type="checkbox" name="myfile-clear" id="myfile-clear_id" />
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<label for="myfile-clear_id">Clear</label><br />
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Change: <input type="file" name="myfile" />
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"""
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))
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def test_html_escaped(self):
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"""
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A ClearableFileInput should escape name, filename, and URL
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when rendering HTML (#15182).
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"""
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@python_2_unicode_compatible
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class StrangeFieldFile(object):
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url = "something?chapter=1§=2©=3&lang=en"
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def __str__(self):
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return '''something<div onclick="alert('oops')">.jpg'''
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widget = ClearableFileInput()
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field = StrangeFieldFile()
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output = widget.render('my<div>file', field)
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self.assertNotIn(field.url, output)
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self.assertIn('href="something?chapter=1&sect=2&copy=3&lang=en"', output)
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self.assertNotIn(six.text_type(field), output)
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self.assertIn('something<div onclick="alert('oops')">.jpg', output)
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self.assertIn('my<div>file', output)
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self.assertNotIn('my<div>file', output)
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def test_clear_input_renders_only_if_not_required(self):
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"""
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A ClearableFileInput with is_required=False does not render a clear
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checkbox.
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"""
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widget = ClearableFileInput()
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widget.is_required = True
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self.check_html(widget, 'myfile', FakeFieldFile(), html=(
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"""
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Currently: <a href="something">something</a> <br />
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Change: <input type="file" name="myfile" />
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"""
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))
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def test_clear_input_renders_only_if_initial(self):
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"""
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A ClearableFileInput instantiated with no initial value does not render
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a clear checkbox.
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"""
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self.check_html(self.widget, 'myfile', None, html='<input type="file" name="myfile" />')
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def test_clear_input_checked_returns_false(self):
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"""
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ClearableFileInput.value_from_datadict returns False if the clear
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checkbox is checked, if not required.
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"""
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value = self.widget.value_from_datadict(
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data={'myfile-clear': True},
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files={},
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name='myfile',
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)
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self.assertEqual(value, False)
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def test_clear_input_checked_returns_false_only_if_not_required(self):
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"""
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ClearableFileInput.value_from_datadict never returns False if the field
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is required.
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"""
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widget = ClearableFileInput()
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widget.is_required = True
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field = SimpleUploadedFile('something.txt', b'content')
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value = widget.value_from_datadict(
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data={'myfile-clear': True},
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files={'myfile': field},
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name='myfile',
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)
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self.assertEqual(value, field)
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