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21b1b1fc03
Thanks Moataz Al-Sharida and nawaik for reports. Co-authored-by: Shai Berger <shai@platonix.com> Co-authored-by: nessita <124304+nessita@users.noreply.github.com>
95 lines
3.4 KiB
Python
95 lines
3.4 KiB
Python
from django.core.files.uploadedfile import SimpleUploadedFile
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from django.forms import FileField, FileInput, Form
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from django.utils.datastructures import MultiValueDict
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from .base import WidgetTest
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class FileInputTest(WidgetTest):
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widget = FileInput()
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def test_render(self):
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"""
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FileInput widgets never render the value attribute. The old value
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isn't useful if a form is updated or an error occurred.
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"""
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self.check_html(
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self.widget,
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"email",
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"test@example.com",
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html='<input type="file" name="email">',
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)
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self.check_html(
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self.widget, "email", "", html='<input type="file" name="email">'
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)
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self.check_html(
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self.widget, "email", None, html='<input type="file" name="email">'
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)
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def test_value_omitted_from_data(self):
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self.assertIs(self.widget.value_omitted_from_data({}, {}, "field"), True)
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self.assertIs(
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self.widget.value_omitted_from_data({}, {"field": "value"}, "field"), False
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)
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def test_use_required_attribute(self):
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# False when initial data exists. The file input is left blank by the
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# user to keep the existing, initial value.
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self.assertIs(self.widget.use_required_attribute(None), True)
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self.assertIs(self.widget.use_required_attribute("resume.txt"), False)
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def test_fieldset(self):
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class TestForm(Form):
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template_name = "forms_tests/use_fieldset.html"
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field = FileField(widget=self.widget)
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form = TestForm()
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self.assertIs(self.widget.use_fieldset, False)
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self.assertHTMLEqual(
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'<div><label for="id_field">Field:</label><input id="id_field" '
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'name="field" required type="file"></div>',
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form.render(),
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)
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def test_multiple_error(self):
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msg = "FileInput doesn't support uploading multiple files."
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with self.assertRaisesMessage(ValueError, msg):
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FileInput(attrs={"multiple": True})
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def test_value_from_datadict_multiple(self):
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class MultipleFileInput(FileInput):
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allow_multiple_selected = True
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file_1 = SimpleUploadedFile("something1.txt", b"content 1")
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file_2 = SimpleUploadedFile("something2.txt", b"content 2")
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# Uploading multiple files is allowed.
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widget = MultipleFileInput(attrs={"multiple": True})
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value = widget.value_from_datadict(
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data={"name": "Test name"},
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files=MultiValueDict({"myfile": [file_1, file_2]}),
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name="myfile",
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)
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self.assertEqual(value, [file_1, file_2])
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# Uploading multiple files is not allowed.
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widget = FileInput()
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value = widget.value_from_datadict(
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data={"name": "Test name"},
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files=MultiValueDict({"myfile": [file_1, file_2]}),
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name="myfile",
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)
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self.assertEqual(value, file_2)
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def test_multiple_default(self):
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class MultipleFileInput(FileInput):
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allow_multiple_selected = True
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tests = [
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(None, True),
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({"class": "myclass"}, True),
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({"multiple": False}, False),
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]
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for attrs, expected in tests:
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with self.subTest(attrs=attrs):
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widget = MultipleFileInput(attrs=attrs)
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self.assertIs(widget.attrs["multiple"], expected)
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