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import re
from django.forms import RegexField, ValidationError
from django.test import SimpleTestCase
class RegexFieldTest(SimpleTestCase):
def test_regexfield_1(self):
f = RegexField('^[0-9][A-F][0-9]$')
self.assertEqual('2A2', f.clean('2A2'))
self.assertEqual('3F3', f.clean('3F3'))
with self.assertRaisesMessage(ValidationError, "'Enter a valid value.'"):
f.clean('3G3')
with self.assertRaisesMessage(ValidationError, "'Enter a valid value.'"):
f.clean(' 2A2')
with self.assertRaisesMessage(ValidationError, "'Enter a valid value.'"):
f.clean('2A2 ')
with self.assertRaisesMessage(ValidationError, "'This field is required.'"):
f.clean('')
def test_regexfield_2(self):
f = RegexField('^[0-9][A-F][0-9]$', required=False)
self.assertEqual('2A2', f.clean('2A2'))
self.assertEqual('3F3', f.clean('3F3'))
with self.assertRaisesMessage(ValidationError, "'Enter a valid value.'"):
f.clean('3G3')
self.assertEqual('', f.clean(''))
def test_regexfield_3(self):
f = RegexField(re.compile('^[0-9][A-F][0-9]$'))
self.assertEqual('2A2', f.clean('2A2'))
self.assertEqual('3F3', f.clean('3F3'))
with self.assertRaisesMessage(ValidationError, "'Enter a valid value.'"):
f.clean('3G3')
with self.assertRaisesMessage(ValidationError, "'Enter a valid value.'"):
f.clean(' 2A2')
with self.assertRaisesMessage(ValidationError, "'Enter a valid value.'"):
f.clean('2A2 ')
def test_regexfield_4(self):
f = RegexField('^[0-9]+$', min_length=5, max_length=10)
with self.assertRaisesMessage(ValidationError, "'Ensure this value has at least 5 characters (it has 3).'"):
f.clean('123')
with self.assertRaisesMessage(
ValidationError,
"'Ensure this value has at least 5 characters (it has 3).', "
"'Enter a valid value.'",
):
f.clean('abc')
self.assertEqual('12345', f.clean('12345'))
self.assertEqual('1234567890', f.clean('1234567890'))
with self.assertRaisesMessage(ValidationError, "'Ensure this value has at most 10 characters (it has 11).'"):
f.clean('12345678901')
with self.assertRaisesMessage(ValidationError, "'Enter a valid value.'"):
f.clean('12345a')
def test_regexfield_unicode_characters(self):
f = RegexField(r'^\w+$')
self.assertEqual('éèøçÎÎ你好', f.clean('éèøçÎÎ你好'))
def test_change_regex_after_init(self):
f = RegexField('^[a-z]+$')
f.regex = '^[0-9]+$'
self.assertEqual('1234', f.clean('1234'))
with self.assertRaisesMessage(ValidationError, "'Enter a valid value.'"):
f.clean('abcd')
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