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# -*- coding: utf-8 -*-
from __future__ import unicode_literals
import copy
from django.core.exceptions import ValidationError
from django.forms.utils import ErrorDict, ErrorList, flatatt
from django.test import SimpleTestCase
from django.utils import six
from django.utils.encoding import force_text, python_2_unicode_compatible
from django.utils.safestring import mark_safe
from django.utils.translation import ugettext_lazy
class FormsUtilsTestCase(SimpleTestCase):
# Tests for forms/utils.py module.
def test_flatatt(self):
###########
# flatatt #
###########
self.assertEqual(flatatt({'id': "header"}), ' id="header"')
self.assertEqual(flatatt({'class': "news", 'title': "Read this"}), ' class="news" title="Read this"')
self.assertEqual(
flatatt({'class': "news", 'title': "Read this", 'required': "required"}),
' class="news" required="required" title="Read this"'
)
self.assertEqual(
flatatt({'class': "news", 'title': "Read this", 'required': True}),
' class="news" title="Read this" required'
)
self.assertEqual(
flatatt({'class': "news", 'title': "Read this", 'required': False}),
' class="news" title="Read this"'
)
self.assertEqual(flatatt({}), '')
def test_flatatt_no_side_effects(self):
"""
flatatt() does not modify the dict passed in.
"""
attrs = {'foo': 'bar', 'true': True, 'false': False}
attrs_copy = copy.copy(attrs)
self.assertEqual(attrs, attrs_copy)
first_run = flatatt(attrs)
self.assertEqual(attrs, attrs_copy)
self.assertEqual(first_run, ' foo="bar" true')
second_run = flatatt(attrs)
self.assertEqual(attrs, attrs_copy)
self.assertEqual(first_run, second_run)
def test_validation_error(self):
###################
# ValidationError #
###################
# Can take a string.
self.assertHTMLEqual(
str(ErrorList(ValidationError("There was an error.").messages)),
'<ul class="errorlist"><li>There was an error.</li></ul>'
)
# Can take a unicode string.
self.assertHTMLEqual(
six.text_type(ErrorList(ValidationError("Not \u03C0.").messages)),
'<ul class="errorlist"><li>Not π.</li></ul>'
)
# Can take a lazy string.
self.assertHTMLEqual(
str(ErrorList(ValidationError(ugettext_lazy("Error.")).messages)),
'<ul class="errorlist"><li>Error.</li></ul>'
)
# Can take a list.
self.assertHTMLEqual(
str(ErrorList(ValidationError(["Error one.", "Error two."]).messages)),
'<ul class="errorlist"><li>Error one.</li><li>Error two.</li></ul>'
)
# Can take a dict.
self.assertHTMLEqual(
str(ErrorList(sorted(ValidationError({'error_1': "1. Error one.", 'error_2': "2. Error two."}).messages))),
'<ul class="errorlist"><li>1. Error one.</li><li>2. Error two.</li></ul>'
)
# Can take a mixture in a list.
self.assertHTMLEqual(
str(ErrorList(sorted(ValidationError([
"1. First error.",
"2. Not \u03C0.",
ugettext_lazy("3. Error."),
{
'error_1': "4. First dict error.",
'error_2': "5. Second dict error.",
},
]).messages))),
'<ul class="errorlist">'
'<li>1. First error.</li>'
'<li>2. Not π.</li>'
'<li>3. Error.</li>'
'<li>4. First dict error.</li>'
'<li>5. Second dict error.</li>'
'</ul>'
)
@python_2_unicode_compatible
class VeryBadError:
def __str__(self):
return "A very bad error."
# Can take a non-string.
self.assertHTMLEqual(
str(ErrorList(ValidationError(VeryBadError()).messages)),
'<ul class="errorlist"><li>A very bad error.</li></ul>'
)
# Escapes non-safe input but not input marked safe.
example = 'Example of link: <a href="http://www.example.com/">example</a>'
self.assertHTMLEqual(
str(ErrorList([example])),
'<ul class="errorlist"><li>Example of link: '
'<a href="http://www.example.com/">example</a></li></ul>'
)
self.assertHTMLEqual(
str(ErrorList([mark_safe(example)])),
'<ul class="errorlist"><li>Example of link: '
'<a href="http://www.example.com/">example</a></li></ul>'
)
self.assertHTMLEqual(
str(ErrorDict({'name': example})),
'<ul class="errorlist"><li>nameExample of link: '
'<a href="http://www.example.com/">example</a></li></ul>'
)
self.assertHTMLEqual(
str(ErrorDict({'name': mark_safe(example)})),
'<ul class="errorlist"><li>nameExample of link: '
'<a href="http://www.example.com/">example</a></li></ul>'
)
def test_error_dict_copy(self):
e = ErrorDict()
e['__all__'] = ErrorList([
ValidationError(
message='message %(i)s',
params={'i': 1},
),
ValidationError(
message='message %(i)s',
params={'i': 2},
),
])
e_copy = copy.copy(e)
self.assertEqual(e, e_copy)
self.assertEqual(e.as_data(), e_copy.as_data())
e_deepcopy = copy.deepcopy(e)
self.assertEqual(e, e_deepcopy)
self.assertEqual(e.as_data(), e_copy.as_data())
def test_error_dict_html_safe(self):
e = ErrorDict()
e['username'] = 'Invalid username.'
self.assertTrue(hasattr(ErrorDict, '__html__'))
self.assertEqual(force_text(e), e.__html__())
def test_error_list_html_safe(self):
e = ErrorList(['Invalid username.'])
self.assertTrue(hasattr(ErrorList, '__html__'))
self.assertEqual(force_text(e), e.__html__())
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