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# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.forms import ChoiceField, Form, ValidationError
from django.test import SimpleTestCase, ignore_warnings
from . import FormFieldAssertionsMixin
class ChoiceFieldTest(FormFieldAssertionsMixin, SimpleTestCase):
def test_choicefield_1(self):
f = ChoiceField(choices=[('1', 'One'), ('2', 'Two')])
with self.assertRaisesMessage(ValidationError, "'This field is required.'"):
f.clean('')
with self.assertRaisesMessage(ValidationError, "'This field is required.'"):
f.clean(None)
self.assertEqual('1', f.clean(1))
self.assertEqual('1', f.clean('1'))
msg = "'Select a valid choice. 3 is not one of the available choices.'"
with self.assertRaisesMessage(ValidationError, msg):
f.clean('3')
def test_choicefield_2(self):
f = ChoiceField(choices=[('1', 'One'), ('2', 'Two')], required=False)
self.assertEqual('', f.clean(''))
self.assertEqual('', f.clean(None))
self.assertEqual('1', f.clean(1))
self.assertEqual('1', f.clean('1'))
msg = "'Select a valid choice. 3 is not one of the available choices.'"
with self.assertRaisesMessage(ValidationError, msg):
f.clean('3')
def test_choicefield_3(self):
f = ChoiceField(choices=[('J', 'John'), ('P', 'Paul')])
self.assertEqual('J', f.clean('J'))
msg = "'Select a valid choice. John is not one of the available choices.'"
with self.assertRaisesMessage(ValidationError, msg):
f.clean('John')
def test_choicefield_4(self):
f = ChoiceField(
choices=[
('Numbers', (('1', 'One'), ('2', 'Two'))),
('Letters', (('3', 'A'), ('4', 'B'))), ('5', 'Other'),
]
)
self.assertEqual('1', f.clean(1))
self.assertEqual('1', f.clean('1'))
self.assertEqual('3', f.clean(3))
self.assertEqual('3', f.clean('3'))
self.assertEqual('5', f.clean(5))
self.assertEqual('5', f.clean('5'))
msg = "'Select a valid choice. 6 is not one of the available choices.'"
with self.assertRaisesMessage(ValidationError, msg):
f.clean('6')
def test_choicefield_choices_default(self):
f = ChoiceField()
self.assertEqual(f.choices, [])
def test_choicefield_callable(self):
def choices():
return [('J', 'John'), ('P', 'Paul')]
f = ChoiceField(choices=choices)
self.assertEqual('J', f.clean('J'))
def test_choicefield_callable_may_evaluate_to_different_values(self):
choices = []
def choices_as_callable():
return choices
class ChoiceFieldForm(Form):
choicefield = ChoiceField(choices=choices_as_callable)
choices = [('J', 'John')]
form = ChoiceFieldForm()
self.assertEqual([('J', 'John')], list(form.fields['choicefield'].choices))
choices = [('P', 'Paul')]
form = ChoiceFieldForm()
self.assertEqual([('P', 'Paul')], list(form.fields['choicefield'].choices))
def test_choicefield_disabled(self):
f = ChoiceField(choices=[('J', 'John'), ('P', 'Paul')], disabled=True)
self.assertWidgetRendersTo(
f,
'<select id="id_f" name="f" disabled><option value="J">John</option>'
'<option value="P">Paul</option></select>'
)
@ignore_warnings(category=UnicodeWarning)
def test_utf8_bytesrings(self):
# Choice validation with UTF-8 bytestrings as input (these are the
# Russian abbreviations "мес." and "шт.".
f = ChoiceField(
choices=(
(b'\xd0\xbc\xd0\xb5\xd1\x81.', b'\xd0\xbc\xd0\xb5\xd1\x81.'),
(b'\xd1\x88\xd1\x82.', b'\xd1\x88\xd1\x82.'),
),
)
self.assertEqual(f.clean('\u0448\u0442.'), '\u0448\u0442.')
self.assertEqual(f.clean(b'\xd1\x88\xd1\x82.'), '\u0448\u0442.')
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