text: # -*- coding: utf-8 -*-
  
  import copy
  import datetime
  
  from django.conf import settings
  from django.core.files.uploadedfile import SimpleUploadedFile
  from django.forms import *
  from django.forms.widgets import RadioFieldRenderer
  from django.utils import formats
  from django.utils.safestring import mark_safe
  from django.utils.translation import activate, deactivate
  from django.test import TestCase
  
  
  class FormsWidgetTestCase(TestCase):
      # Each Widget class corresponds to an HTML form widget. A Widget knows how to
      # render itself, given a field name and some data. Widgets don't perform
      # validation.
      def test_textinput(self):
          w = TextInput()
          self.assertHTMLEqual(w.render('email', ''), u'<input type="text" name="email" />')
          self.assertHTMLEqual(w.render('email', None), u'<input type="text" name="email" />')
          self.assertHTMLEqual(w.render('email', 'test@example.com'), u'<input type="text" name="email" value="test@example.com" />')
          self.assertHTMLEqual(w.render('email', 'some "quoted" & ampersanded value'), u'<input type="text" name="email" value="some &quot;quoted&quot; &amp; ampersanded value" />')
          self.assertHTMLEqual(w.render('email', 'test@example.com', attrs={'class': 'fun'}), u'<input type="text" name="email" value="test@example.com" class="fun" />')
  
          # Note that doctest in Python 2.4 (and maybe 2.5?) doesn't support non-ascii
          # characters in output, so we're displaying the repr() here.
          self.assertHTMLEqual(w.render('email', 'ŠĐĆŽćžšđ', attrs={'class': 'fun'}), u'<input type="text" name="email" value="\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111" class="fun" />')
  
          # You can also pass 'attrs' to the constructor:
          w = TextInput(attrs={'class': 'fun'})
          self.assertHTMLEqual(w.render('email', ''), u'<input type="text" class="fun" name="email" />')
          self.assertHTMLEqual(w.render('email', 'foo@example.com'), u'<input type="text" class="fun" value="foo@example.com" name="email" />')
  
          # 'attrs' passed to render() get precedence over those passed to the constructor:
          w = TextInput(attrs={'class': 'pretty'})
          self.assertHTMLEqual(w.render('email', '', attrs={'class': 'special'}), u'<input type="text" class="special" name="email" />')
  
          # 'attrs' can be safe-strings if needed)
          w = TextInput(attrs={'onBlur': mark_safe("function('foo')")})
          self.assertHTMLEqual(w.render('email', ''), u'<input onBlur="function(\'foo\')" type="text" name="email" />')
  
      def test_passwordinput(self):
          w = PasswordInput()
          self.assertHTMLEqual(w.render('email', ''), u'<input type="password" name="email" />')
          self.assertHTMLEqual(w.render('email', None), u'<input type="password" name="email" />')
          self.assertHTMLEqual(w.render('email', 'secret'), u'<input type="password" name="email" />')
  
          # The render_value argument lets you specify whether the widget should render
          # its value. For security reasons, this is off by default.
          w = PasswordInput(render_value=True)
          self.assertHTMLEqual(w.render('email', ''), u'<input type="password" name="email" />')
          self.assertHTMLEqual(w.render('email', None), u'<input type="password" name="email" />')
          self.assertHTMLEqual(w.render('email', 'test@example.com'), u'<input type="password" name="email" value="test@example.com" />')
          self.assertHTMLEqual(w.render('email', 'some "quoted" & ampersanded value'), u'<input type="password" name="email" value="some &quot;quoted&quot; &amp; ampersanded value" />')
          self.assertHTMLEqual(w.render('email', 'test@example.com', attrs={'class': 'fun'}), u'<input type="password" name="email" value="test@example.com" class="fun" />')
  
          # You can also pass 'attrs' to the constructor:
          w = PasswordInput(attrs={'class': 'fun'}, render_value=True)
          self.assertHTMLEqual(w.render('email', ''), u'<input type="password" class="fun" name="email" />')
          self.assertHTMLEqual(w.render('email', 'foo@example.com'), u'<input type="password" class="fun" value="foo@example.com" name="email" />')
  
          # 'attrs' passed to render() get precedence over those passed to the constructor:
          w = PasswordInput(attrs={'class': 'pretty'}, render_value=True)
          self.assertHTMLEqual(w.render('email', '', attrs={'class': 'special'}), u'<input type="password" class="special" name="email" />')
  
          self.assertHTMLEqual(w.render('email', 'ŠĐĆŽćžšđ', attrs={'class': 'fun'}), u'<input type="password" class="fun" value="\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111" name="email" />')
  
      def test_hiddeninput(self):
          w = HiddenInput()
          self.assertHTMLEqual(w.render('email', ''), u'<input type="hidden" name="email" />')
          self.assertHTMLEqual(w.render('email', None), u'<input type="hidden" name="email" />')
          self.assertHTMLEqual(w.render('email', 'test@example.com'), u'<input type="hidden" name="email" value="test@example.com" />')
          self.assertHTMLEqual(w.render('email', 'some "quoted" & ampersanded value'), u'<input type="hidden" name="email" value="some &quot;quoted&quot; &amp; ampersanded value" />')
          self.assertHTMLEqual(w.render('email', 'test@example.com', attrs={'class': 'fun'}), u'<input type="hidden" name="email" value="test@example.com" class="fun" />')
  
          # You can also pass 'attrs' to the constructor:
          w = HiddenInput(attrs={'class': 'fun'})
          self.assertHTMLEqual(w.render('email', ''), u'<input type="hidden" class="fun" name="email" />')
          self.assertHTMLEqual(w.render('email', 'foo@example.com'), u'<input type="hidden" class="fun" value="foo@example.com" name="email" />')
  
          # 'attrs' passed to render() get precedence over those passed to the constructor:
          w = HiddenInput(attrs={'class': 'pretty'})
          self.assertHTMLEqual(w.render('email', '', attrs={'class': 'special'}), u'<input type="hidden" class="special" name="email" />')
  
          self.assertHTMLEqual(w.render('email', 'ŠĐĆŽćžšđ', attrs={'class': 'fun'}), u'<input type="hidden" class="fun" value="\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111" name="email" />')
  
          # 'attrs' passed to render() get precedence over those passed to the constructor:
          w = HiddenInput(attrs={'class': 'pretty'})
          self.assertHTMLEqual(w.render('email', '', attrs={'class': 'special'}), u'<input type="hidden" class="special" name="email" />')
  
          # Boolean values are rendered to their string forms ("True" and "False").
          w = HiddenInput()
          self.assertHTMLEqual(w.render('get_spam', False), u'<input type="hidden" name="get_spam" value="False" />')
          self.assertHTMLEqual(w.render('get_spam', True), u'<input type="hidden" name="get_spam" value="True" />')
  
      def test_multiplehiddeninput(self):
          w = MultipleHiddenInput()
          self.assertHTMLEqual(w.render('email', []), u'')
          self.assertHTMLEqual(w.render('email', None), u'')
          self.assertHTMLEqual(w.render('email', ['test@example.com']), u'<input type="hidden" name="email" value="test@example.com" />')
          self.assertHTMLEqual(w.render('email', ['some "quoted" & ampersanded value']), u'<input type="hidden" name="email" value="some &quot;quoted&quot; &amp; ampersanded value" />')
          self.assertHTMLEqual(w.render('email', ['test@example.com', 'foo@example.com']), u'<input type="hidden" name="email" value="test@example.com" />\n<input type="hidden" name="email" value="foo@example.com" />')
          self.assertHTMLEqual(w.render('email', ['test@example.com'], attrs={'class': 'fun'}), u'<input type="hidden" name="email" value="test@example.com" class="fun" />')
          self.assertHTMLEqual(w.render('email', ['test@example.com', 'foo@example.com'], attrs={'class': 'fun'}), u'<input type="hidden" name="email" value="test@example.com" class="fun" />\n<input type="hidden" name="email" value="foo@example.com" class="fun" />')
  
          # You can also pass 'attrs' to the constructor:
          w = MultipleHiddenInput(attrs={'class': 'fun'})
          self.assertHTMLEqual(w.render('email', []), u'')
          self.assertHTMLEqual(w.render('email', ['foo@example.com']), u'<input type="hidden" class="fun" value="foo@example.com" name="email" />')
          self.assertHTMLEqual(w.render('email', ['foo@example.com', 'test@example.com']), u'<input type="hidden" class="fun" value="foo@example.com" name="email" />\n<input type="hidden" class="fun" value="test@example.com" name="email" />')
  
          # 'attrs' passed to render() get precedence over those passed to the constructor:
          w = MultipleHiddenInput(attrs={'class': 'pretty'})
          self.assertHTMLEqual(w.render('email', ['foo@example.com'], attrs={'class': 'special'}), u'<input type="hidden" class="special" value="foo@example.com" name="email" />')
  
          self.assertHTMLEqual(w.render('email', ['ŠĐĆŽćžšđ'], attrs={'class': 'fun'}), u'<input type="hidden" class="fun" value="\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111" name="email" />')
  
          # 'attrs' passed to render() get precedence over those passed to the constructor:
          w = MultipleHiddenInput(attrs={'class': 'pretty'})
          self.assertHTMLEqual(w.render('email', ['foo@example.com'], attrs={'class': 'special'}), u'<input type="hidden" class="special" value="foo@example.com" name="email" />')
  
          # Each input gets a separate ID.
          w = MultipleHiddenInput()
          self.assertHTMLEqual(w.render('letters', list('abc'), attrs={'id': 'hideme'}), u'<input type="hidden" name="letters" value="a" id="hideme_0" />\n<input type="hidden" name="letters" value="b" id="hideme_1" />\n<input type="hidden" name="letters" value="c" id="hideme_2" />')
  
      def test_fileinput(self):
          # FileInput widgets don't ever show the value, because the old value is of no use
          # if you are updating the form or if the provided file generated an error.
          w = FileInput()
          self.assertHTMLEqual(w.render('email', ''), u'<input type="file" name="email" />')
          self.assertHTMLEqual(w.render('email', None), u'<input type="file" name="email" />')
          self.assertHTMLEqual(w.render('email', 'test@example.com'), u'<input type="file" name="email" />')
          self.assertHTMLEqual(w.render('email', 'some "quoted" & ampersanded value'), u'<input type="file" name="email" />')
          self.assertHTMLEqual(w.render('email', 'test@example.com', attrs={'class': 'fun'}), u'<input type="file" name="email" class="fun" />')
  
          # You can also pass 'attrs' to the constructor:
          w = FileInput(attrs={'class': 'fun'})
          self.assertHTMLEqual(w.render('email', ''), u'<input type="file" class="fun" name="email" />')
          self.assertHTMLEqual(w.render('email', 'foo@example.com'), u'<input type="file" class="fun" name="email" />')
  
          self.assertHTMLEqual(w.render('email', 'ŠĐĆŽćžšđ', attrs={'class': 'fun'}), u'<input type="file" class="fun" name="email" />')
  
          # Test for the behavior of _has_changed for FileInput. The value of data will
          # more than likely come from request.FILES. The value of initial data will
          # likely be a filename stored in the database. Since its value is of no use to
          # a FileInput it is ignored.
          w = FileInput()
  
          # No file was uploaded and no initial data.
          self.assertFalse(w._has_changed(u'', None))
  
          # A file was uploaded and no initial data.
          self.assertTrue(w._has_changed(u'', {'filename': 'resume.txt', 'content': 'My resume'}))
  
          # A file was not uploaded, but there is initial data
          self.assertFalse(w._has_changed(u'resume.txt', None))
  
          # A file was uploaded and there is initial data (file identity is not dealt
          # with here)
          self.assertTrue(w._has_changed('resume.txt', {'filename': 'resume.txt', 'content': 'My resume'}))
  
      def test_textarea(self):
          w = Textarea()
          self.assertHTMLEqual(w.render('msg', ''), u'<textarea rows="10" cols="40" name="msg"></textarea>')
          self.assertHTMLEqual(w.render('msg', None), u'<textarea rows="10" cols="40" name="msg"></textarea>')
          self.assertHTMLEqual(w.render('msg', 'value'), u'<textarea rows="10" cols="40" name="msg">value</textarea>')
          self.assertHTMLEqual(w.render('msg', 'some "quoted" & ampersanded value'), u'<textarea rows="10" cols="40" name="msg">some &quot;quoted&quot; &amp; ampersanded value</textarea>')
          self.assertHTMLEqual(w.render('msg', mark_safe('pre &quot;quoted&quot; value')), u'<textarea rows="10" cols="40" name="msg">pre &quot;quoted&quot; value</textarea>')
          self.assertHTMLEqual(w.render('msg', 'value', attrs={'class': 'pretty', 'rows': 20}), u'<textarea class="pretty" rows="20" cols="40" name="msg">value</textarea>')
  
          # You can also pass 'attrs' to the constructor:
          w = Textarea(attrs={'class': 'pretty'})
          self.assertHTMLEqual(w.render('msg', ''), u'<textarea rows="10" cols="40" name="msg" class="pretty"></textarea>')
          self.assertHTMLEqual(w.render('msg', 'example'), u'<textarea rows="10" cols="40" name="msg" class="pretty">example</textarea>')
  
          # 'attrs' passed to render() get precedence over those passed to the constructor:
          w = Textarea(attrs={'class': 'pretty'})
          self.assertHTMLEqual(w.render('msg', '', attrs={'class': 'special'}), u'<textarea rows="10" cols="40" name="msg" class="special"></textarea>')
  
          self.assertHTMLEqual(w.render('msg', 'ŠĐĆŽćžšđ', attrs={'class': 'fun'}), u'<textarea rows="10" cols="40" name="msg" class="fun">\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111</textarea>')
  
      def test_checkboxinput(self):
          w = CheckboxInput()
          self.assertHTMLEqual(w.render('is_cool', ''), u'<input type="checkbox" name="is_cool" />')
          self.assertHTMLEqual(w.render('is_cool', None), u'<input type="checkbox" name="is_cool" />')
          self.assertHTMLEqual(w.render('is_cool', False), u'<input type="checkbox" name="is_cool" />')
          self.assertHTMLEqual(w.render('is_cool', True), u'<input checked="checked" type="checkbox" name="is_cool" />')
  
          # Using any value that's not in ('', None, False, True) will check the checkbox
          # and set the 'value' attribute.
          self.assertHTMLEqual(w.render('is_cool', 'foo'), u'<input checked="checked" type="checkbox" name="is_cool" value="foo" />')
  
          self.assertHTMLEqual(w.render('is_cool', False, attrs={'class': 'pretty'}), u'<input type="checkbox" name="is_cool" class="pretty" />')
  
          # regression for #17114
          self.assertHTMLEqual(w.render('is_cool', 0), u'<input checked="checked" type="checkbox" name="is_cool" value="0" />')
          self.assertHTMLEqual(w.render('is_cool', 1), u'<input checked="checked" type="checkbox" name="is_cool" value="1" />')
  
          # You can also pass 'attrs' to the constructor:
          w = CheckboxInput(attrs={'class': 'pretty'})
          self.assertHTMLEqual(w.render('is_cool', ''), u'<input type="checkbox" class="pretty" name="is_cool" />')
  
          # 'attrs' passed to render() get precedence over those passed to the constructor:
          w = CheckboxInput(attrs={'class': 'pretty'})
          self.assertHTMLEqual(w.render('is_cool', '', attrs={'class': 'special'}), u'<input type="checkbox" class="special" name="is_cool" />')
  
          # You can pass 'check_test' to the constructor. This is a callable that takes the
          # value and returns True if the box should be checked.
          w = CheckboxInput(check_test=lambda value: value.startswith('hello'))
          self.assertHTMLEqual(w.render('greeting', ''), u'<input type="checkbox" name="greeting" />')
          self.assertHTMLEqual(w.render('greeting', 'hello'), u'<input checked="checked" type="checkbox" name="greeting" value="hello" />')
          self.assertHTMLEqual(w.render('greeting', 'hello there'), u'<input checked="checked" type="checkbox" name="greeting" value="hello there" />')
          self.assertHTMLEqual(w.render('greeting', 'hello & goodbye'), u'<input checked="checked" type="checkbox" name="greeting" value="hello &amp; goodbye" />')
  
          # A subtlety: If the 'check_test' argument cannot handle a value and raises any
          # exception during its __call__, then the exception will be swallowed and the box
          # will not be checked. In this example, the 'check_test' assumes the value has a
          # startswith() method, which fails for the values True, False and None.
          self.assertHTMLEqual(w.render('greeting', True), u'<input type="checkbox" name="greeting" />')
          self.assertHTMLEqual(w.render('greeting', False), u'<input type="checkbox" name="greeting" />')
          self.assertHTMLEqual(w.render('greeting', None), u'<input type="checkbox" name="greeting" />')
  
          # The CheckboxInput widget will return False if the key is not found in the data
          # dictionary (because HTML form submission doesn't send any result for unchecked
          # checkboxes).
          self.assertFalse(w.value_from_datadict({}, {}, 'testing'))
  
          self.assertFalse(w._has_changed(None, None))
          self.assertFalse(w._has_changed(None, u''))
          self.assertFalse(w._has_changed(u'', None))
          self.assertFalse(w._has_changed(u'', u''))
          self.assertTrue(w._has_changed(False, u'on'))
          self.assertFalse(w._has_changed(True, u'on'))
          self.assertTrue(w._has_changed(True, u''))
  
      def test_select(self):
          w = Select()
          self.assertHTMLEqual(w.render('beatle', 'J', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<select name="beatle">
  <option value="J" selected="selected">John</option>
  <option value="P">Paul</option>
  <option value="G">George</option>
  <option value="R">Ringo</option>
  </select>""")
  
          # If the value is None, none of the options are selected:
          self.assertHTMLEqual(w.render('beatle', None, choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<select name="beatle">
  <option value="J">John</option>
  <option value="P">Paul</option>
  <option value="G">George</option>
  <option value="R">Ringo</option>
  </select>""")
  
          # If the value corresponds to a label (but not to an option value), none of the options are selected:
          self.assertHTMLEqual(w.render('beatle', 'John', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<select name="beatle">
  <option value="J">John</option>
  <option value="P">Paul</option>
  <option value="G">George</option>
  <option value="R">Ringo</option>
  </select>""")
  
          # Only one option can be selected, see #8103:
          self.assertHTMLEqual(w.render('choices', '0', choices=(('0', '0'), ('1', '1'), ('2', '2'), ('3', '3'), ('0', 'extra'))), """<select name="choices">
  <option value="0" selected="selected">0</option>
  <option value="1">1</option>
  <option value="2">2</option>
  <option value="3">3</option>
  <option value="0">extra</option>
  </select>""")
  
          # The value is compared to its str():
          self.assertHTMLEqual(w.render('num', 2, choices=[('1', '1'), ('2', '2'), ('3', '3')]), """<select name="num">
  <option value="1">1</option>
  <option value="2" selected="selected">2</option>
  <option value="3">3</option>
  </select>""")
          self.assertHTMLEqual(w.render('num', '2', choices=[(1, 1), (2, 2), (3, 3)]), """<select name="num">
  <option value="1">1</option>
  <option value="2" selected="selected">2</option>
  <option value="3">3</option>
  </select>""")
          self.assertHTMLEqual(w.render('num', 2, choices=[(1, 1), (2, 2), (3, 3)]), """<select name="num">
  <option value="1">1</option>
  <option value="2" selected="selected">2</option>
  <option value="3">3</option>
  </select>""")
  
          # The 'choices' argument can be any iterable:
          from itertools import chain
          def get_choices():
              for i in range(5):
                  yield (i, i)
          self.assertHTMLEqual(w.render('num', 2, choices=get_choices()), """<select name="num">
  <option value="0">0</option>
  <option value="1">1</option>
  <option value="2" selected="selected">2</option>
  <option value="3">3</option>
  <option value="4">4</option>
  </select>""")
          things = ({'id': 1, 'name': 'And Boom'}, {'id': 2, 'name': 'One More Thing!'})
          class SomeForm(Form):
              somechoice = ChoiceField(choices=chain((('', '-'*9),), [(thing['id'], thing['name']) for thing in things]))
          f = SomeForm()
          self.assertHTMLEqual(f.as_table(), u'<tr><th><label for="id_somechoice">Somechoice:</label></th><td><select name="somechoice" id="id_somechoice">\n<option value="" selected="selected">---------</option>\n<option value="1">And Boom</option>\n<option value="2">One More Thing!</option>\n</select></td></tr>')
          self.assertHTMLEqual(f.as_table(), u'<tr><th><label for="id_somechoice">Somechoice:</label></th><td><select name="somechoice" id="id_somechoice">\n<option value="" selected="selected">---------</option>\n<option value="1">And Boom</option>\n<option value="2">One More Thing!</option>\n</select></td></tr>')
          f = SomeForm({'somechoice': 2})
          self.assertHTMLEqual(f.as_table(), u'<tr><th><label for="id_somechoice">Somechoice:</label></th><td><select name="somechoice" id="id_somechoice">\n<option value="">---------</option>\n<option value="1">And Boom</option>\n<option value="2" selected="selected">One More Thing!</option>\n</select></td></tr>')
  
          # You can also pass 'choices' to the constructor:
          w = Select(choices=[(1, 1), (2, 2), (3, 3)])
          self.assertHTMLEqual(w.render('num', 2), """<select name="num">
  <option value="1">1</option>
  <option value="2" selected="selected">2</option>
  <option value="3">3</option>
  </select>""")
  
          # If 'choices' is passed to both the constructor and render(), then they'll both be in the output:
          self.assertHTMLEqual(w.render('num', 2, choices=[(4, 4), (5, 5)]), """<select name="num">
  <option value="1">1</option>
  <option value="2" selected="selected">2</option>
  <option value="3">3</option>
  <option value="4">4</option>
  <option value="5">5</option>
  </select>""")
  
          # Choices are escaped correctly
          self.assertHTMLEqual(w.render('escape', None, choices=(('bad', 'you & me'), ('good', mark_safe('you &gt; me')))), """<select name="escape">
  <option value="1">1</option>
  <option value="2">2</option>
  <option value="3">3</option>
  <option value="bad">you &amp; me</option>
  <option value="good">you &gt; me</option>
  </select>""")
  
          # Unicode choices are correctly rendered as HTML
          self.assertHTMLEqual(w.render('email', 'ŠĐĆŽćžšđ', choices=[('ŠĐĆŽćžšđ', 'ŠĐabcĆŽćžšđ'), ('ćžšđ', 'abcćžšđ')]), u'<select name="email">\n<option value="1">1</option>\n<option value="2">2</option>\n<option value="3">3</option>\n<option value="\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111" selected="selected">\u0160\u0110abc\u0106\u017d\u0107\u017e\u0161\u0111</option>\n<option value="\u0107\u017e\u0161\u0111">abc\u0107\u017e\u0161\u0111</option>\n</select>')
  
          # If choices is passed to the constructor and is a generator, it can be iterated
          # over multiple times without getting consumed:
          w = Select(choices=get_choices())
          self.assertHTMLEqual(w.render('num', 2), """<select name="num">
  <option value="0">0</option>
  <option value="1">1</option>
  <option value="2" selected="selected">2</option>
  <option value="3">3</option>
  <option value="4">4</option>
  </select>""")
          self.assertHTMLEqual(w.render('num', 3), """<select name="num">
  <option value="0">0</option>
  <option value="1">1</option>
  <option value="2">2</option>
  <option value="3" selected="selected">3</option>
  <option value="4">4</option>
  </select>""")
  
          # Choices can be nested one level in order to create HTML optgroups:
          w.choices=(('outer1', 'Outer 1'), ('Group "1"', (('inner1', 'Inner 1'), ('inner2', 'Inner 2'))))
          self.assertHTMLEqual(w.render('nestchoice', None), """<select name="nestchoice">
  <option value="outer1">Outer 1</option>
  <optgroup label="Group &quot;1&quot;">
  <option value="inner1">Inner 1</option>
  <option value="inner2">Inner 2</option>
  </optgroup>
  </select>""")
  
          self.assertHTMLEqual(w.render('nestchoice', 'outer1'), """<select name="nestchoice">
  <option value="outer1" selected="selected">Outer 1</option>
  <optgroup label="Group &quot;1&quot;">
  <option value="inner1">Inner 1</option>
  <option value="inner2">Inner 2</option>
  </optgroup>
  </select>""")
  
          self.assertHTMLEqual(w.render('nestchoice', 'inner1'), """<select name="nestchoice">
  <option value="outer1">Outer 1</option>
  <optgroup label="Group &quot;1&quot;">
  <option value="inner1" selected="selected">Inner 1</option>
  <option value="inner2">Inner 2</option>
  </optgroup>
  </select>""")
  
      def test_nullbooleanselect(self):
          w = NullBooleanSelect()
          self.assertTrue(w.render('is_cool', True), """<select name="is_cool">
  <option value="1">Unknown</option>
  <option value="2" selected="selected">Yes</option>
  <option value="3">No</option>
  </select>""")
          self.assertHTMLEqual(w.render('is_cool', False), """<select name="is_cool">
  <option value="1">Unknown</option>
  <option value="2">Yes</option>
  <option value="3" selected="selected">No</option>
  </select>""")
          self.assertHTMLEqual(w.render('is_cool', None), """<select name="is_cool">
  <option value="1" selected="selected">Unknown</option>
  <option value="2">Yes</option>
  <option value="3">No</option>
  </select>""")
          self.assertHTMLEqual(w.render('is_cool', '2'), """<select name="is_cool">
  <option value="1">Unknown</option>
  <option value="2" selected="selected">Yes</option>
  <option value="3">No</option>
  </select>""")
          self.assertHTMLEqual(w.render('is_cool', '3'), """<select name="is_cool">
  <option value="1">Unknown</option>
  <option value="2">Yes</option>
  <option value="3" selected="selected">No</option>
  </select>""")
          self.assertTrue(w._has_changed(False, None))
          self.assertTrue(w._has_changed(None, False))
          self.assertFalse(w._has_changed(None, None))
          self.assertFalse(w._has_changed(False, False))
          self.assertTrue(w._has_changed(True, False))
          self.assertTrue(w._has_changed(True, None))
          self.assertTrue(w._has_changed(True, False))
  
      def test_selectmultiple(self):
          w = SelectMultiple()
          self.assertHTMLEqual(w.render('beatles', ['J'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<select multiple="multiple" name="beatles">
  <option value="J" selected="selected">John</option>
  <option value="P">Paul</option>
  <option value="G">George</option>
  <option value="R">Ringo</option>
  </select>""")
          self.assertHTMLEqual(w.render('beatles', ['J', 'P'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<select multiple="multiple" name="beatles">
  <option value="J" selected="selected">John</option>
  <option value="P" selected="selected">Paul</option>
  <option value="G">George</option>
  <option value="R">Ringo</option>
  </select>""")
          self.assertHTMLEqual(w.render('beatles', ['J', 'P', 'R'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<select multiple="multiple" name="beatles">
  <option value="J" selected="selected">John</option>
  <option value="P" selected="selected">Paul</option>
  <option value="G">George</option>
  <option value="R" selected="selected">Ringo</option>
  </select>""")
  
          # If the value is None, none of the options are selected:
          self.assertHTMLEqual(w.render('beatles', None, choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<select multiple="multiple" name="beatles">
  <option value="J">John</option>
  <option value="P">Paul</option>
  <option value="G">George</option>
  <option value="R">Ringo</option>
  </select>""")
  
          # If the value corresponds to a label (but not to an option value), none of the options are selected:
          self.assertHTMLEqual(w.render('beatles', ['John'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<select multiple="multiple" name="beatles">
  <option value="J">John</option>
  <option value="P">Paul</option>
  <option value="G">George</option>
  <option value="R">Ringo</option>
  </select>""")
  
          # Multiple options (with the same value) can be selected, see #8103:
          self.assertHTMLEqual(w.render('choices', ['0'], choices=(('0', '0'), ('1', '1'), ('2', '2'), ('3', '3'), ('0', 'extra'))), """<select multiple="multiple" name="choices">
  <option value="0" selected="selected">0</option>
  <option value="1">1</option>
  <option value="2">2</option>
  <option value="3">3</option>
  <option value="0" selected="selected">extra</option>
  </select>""")
  
          # If multiple values are given, but some of them are not valid, the valid ones are selected:
          self.assertHTMLEqual(w.render('beatles', ['J', 'G', 'foo'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<select multiple="multiple" name="beatles">
  <option value="J" selected="selected">John</option>
  <option value="P">Paul</option>
  <option value="G" selected="selected">George</option>
  <option value="R">Ringo</option>
  </select>""")
  
          # The value is compared to its str():
          self.assertHTMLEqual(w.render('nums', [2], choices=[('1', '1'), ('2', '2'), ('3', '3')]), """<select multiple="multiple" name="nums">
  <option value="1">1</option>
  <option value="2" selected="selected">2</option>
  <option value="3">3</option>
  </select>""")
          self.assertHTMLEqual(w.render('nums', ['2'], choices=[(1, 1), (2, 2), (3, 3)]), """<select multiple="multiple" name="nums">
  <option value="1">1</option>
  <option value="2" selected="selected">2</option>
  <option value="3">3</option>
  </select>""")
          self.assertHTMLEqual(w.render('nums', [2], choices=[(1, 1), (2, 2), (3, 3)]), """<select multiple="multiple" name="nums">
  <option value="1">1</option>
  <option value="2" selected="selected">2</option>
  <option value="3">3</option>
  </select>""")
  
          # The 'choices' argument can be any iterable:
          def get_choices():
              for i in range(5):
                  yield (i, i)
          self.assertHTMLEqual(w.render('nums', [2], choices=get_choices()), """<select multiple="multiple" name="nums">
  <option value="0">0</option>
  <option value="1">1</option>
  <option value="2" selected="selected">2</option>
  <option value="3">3</option>
  <option value="4">4</option>
  </select>""")
  
          # You can also pass 'choices' to the constructor:
          w = SelectMultiple(choices=[(1, 1), (2, 2), (3, 3)])
          self.assertHTMLEqual(w.render('nums', [2]), """<select multiple="multiple" name="nums">
  <option value="1">1</option>
  <option value="2" selected="selected">2</option>
  <option value="3">3</option>
  </select>""")
  
          # If 'choices' is passed to both the constructor and render(), then they'll both be in the output:
          self.assertHTMLEqual(w.render('nums', [2], choices=[(4, 4), (5, 5)]), """<select multiple="multiple" name="nums">
  <option value="1">1</option>
  <option value="2" selected="selected">2</option>
  <option value="3">3</option>
  <option value="4">4</option>
  <option value="5">5</option>
  </select>""")
  
          # Choices are escaped correctly
          self.assertHTMLEqual(w.render('escape', None, choices=(('bad', 'you & me'), ('good', mark_safe('you &gt; me')))), """<select multiple="multiple" name="escape">
  <option value="1">1</option>
  <option value="2">2</option>
  <option value="3">3</option>
  <option value="bad">you &amp; me</option>
  <option value="good">you &gt; me</option>
  </select>""")
  
          # Unicode choices are correctly rendered as HTML
          self.assertHTMLEqual(w.render('nums', ['ŠĐĆŽćžšđ'], choices=[('ŠĐĆŽćžšđ', 'ŠĐabcĆŽćžšđ'), ('ćžšđ', 'abcćžšđ')]), u'<select multiple="multiple" name="nums">\n<option value="1">1</option>\n<option value="2">2</option>\n<option value="3">3</option>\n<option value="\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111" selected="selected">\u0160\u0110abc\u0106\u017d\u0107\u017e\u0161\u0111</option>\n<option value="\u0107\u017e\u0161\u0111">abc\u0107\u017e\u0161\u0111</option>\n</select>')
  
          # Test the usage of _has_changed
          self.assertFalse(w._has_changed(None, None))
          self.assertFalse(w._has_changed([], None))
          self.assertTrue(w._has_changed(None, [u'1']))
          self.assertFalse(w._has_changed([1, 2], [u'1', u'2']))
          self.assertTrue(w._has_changed([1, 2], [u'1']))
          self.assertTrue(w._has_changed([1, 2], [u'1', u'3']))
  
          # Choices can be nested one level in order to create HTML optgroups:
          w.choices = (('outer1', 'Outer 1'), ('Group "1"', (('inner1', 'Inner 1'), ('inner2', 'Inner 2'))))
          self.assertHTMLEqual(w.render('nestchoice', None), """<select multiple="multiple" name="nestchoice">
  <option value="outer1">Outer 1</option>
  <optgroup label="Group &quot;1&quot;">
  <option value="inner1">Inner 1</option>
  <option value="inner2">Inner 2</option>
  </optgroup>
  </select>""")
  
          self.assertHTMLEqual(w.render('nestchoice', ['outer1']), """<select multiple="multiple" name="nestchoice">
  <option value="outer1" selected="selected">Outer 1</option>
  <optgroup label="Group &quot;1&quot;">
  <option value="inner1">Inner 1</option>
  <option value="inner2">Inner 2</option>
  </optgroup>
  </select>""")
  
          self.assertHTMLEqual(w.render('nestchoice', ['inner1']), """<select multiple="multiple" name="nestchoice">
  <option value="outer1">Outer 1</option>
  <optgroup label="Group &quot;1&quot;">
  <option value="inner1" selected="selected">Inner 1</option>
  <option value="inner2">Inner 2</option>
  </optgroup>
  </select>""")
  
          self.assertHTMLEqual(w.render('nestchoice', ['outer1', 'inner2']), """<select multiple="multiple" name="nestchoice">
  <option value="outer1" selected="selected">Outer 1</option>
  <optgroup label="Group &quot;1&quot;">
  <option value="inner1">Inner 1</option>
  <option value="inner2" selected="selected">Inner 2</option>
  </optgroup>
  </select>""")
  
      def test_radioselect(self):
          w = RadioSelect()
          self.assertHTMLEqual(w.render('beatle', 'J', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<ul>
  <li><label><input checked="checked" type="radio" name="beatle" value="J" /> John</label></li>
  <li><label><input type="radio" name="beatle" value="P" /> Paul</label></li>
  <li><label><input type="radio" name="beatle" value="G" /> George</label></li>
  <li><label><input type="radio" name="beatle" value="R" /> Ringo</label></li>
  </ul>""")
  
          # If the value is None, none of the options are checked:
          self.assertHTMLEqual(w.render('beatle', None, choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<ul>
  <li><label><input type="radio" name="beatle" value="J" /> John</label></li>
  <li><label><input type="radio" name="beatle" value="P" /> Paul</label></li>
  <li><label><input type="radio" name="beatle" value="G" /> George</label></li>
  <li><label><input type="radio" name="beatle" value="R" /> Ringo</label></li>
  </ul>""")
  
          # If the value corresponds to a label (but not to an option value), none of the options are checked:
          self.assertHTMLEqual(w.render('beatle', 'John', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<ul>
  <li><label><input type="radio" name="beatle" value="J" /> John</label></li>
  <li><label><input type="radio" name="beatle" value="P" /> Paul</label></li>
  <li><label><input type="radio" name="beatle" value="G" /> George</label></li>
  <li><label><input type="radio" name="beatle" value="R" /> Ringo</label></li>
  </ul>""")
  
          # The value is compared to its str():
          self.assertHTMLEqual(w.render('num', 2, choices=[('1', '1'), ('2', '2'), ('3', '3')]), """<ul>
  <li><label><input type="radio" name="num" value="1" /> 1</label></li>
  <li><label><input checked="checked" type="radio" name="num" value="2" /> 2</label></li>
  <li><label><input type="radio" name="num" value="3" /> 3</label></li>
  </ul>""")
          self.assertHTMLEqual(w.render('num', '2', choices=[(1, 1), (2, 2), (3, 3)]), """<ul>
  <li><label><input type="radio" name="num" value="1" /> 1</label></li>
  <li><label><input checked="checked" type="radio" name="num" value="2" /> 2</label></li>
  <li><label><input type="radio" name="num" value="3" /> 3</label></li>
  </ul>""")
          self.assertHTMLEqual(w.render('num', 2, choices=[(1, 1), (2, 2), (3, 3)]), """<ul>
  <li><label><input type="radio" name="num" value="1" /> 1</label></li>
  <li><label><input checked="checked" type="radio" name="num" value="2" /> 2</label></li>
  <li><label><input type="radio" name="num" value="3" /> 3</label></li>
  </ul>""")
  
          # The 'choices' argument can be any iterable:
          def get_choices():
              for i in range(5):
                  yield (i, i)
          self.assertHTMLEqual(w.render('num', 2, choices=get_choices()), """<ul>
  <li><label><input type="radio" name="num" value="0" /> 0</label></li>
  <li><label><input type="radio" name="num" value="1" /> 1</label></li>
  <li><label><input checked="checked" type="radio" name="num" value="2" /> 2</label></li>
  <li><label><input type="radio" name="num" value="3" /> 3</label></li>
  <li><label><input type="radio" name="num" value="4" /> 4</label></li>
  </ul>""")
  
          # You can also pass 'choices' to the constructor:
          w = RadioSelect(choices=[(1, 1), (2, 2), (3, 3)])
          self.assertHTMLEqual(w.render('num', 2), """<ul>
  <li><label><input type="radio" name="num" value="1" /> 1</label></li>
  <li><label><input checked="checked" type="radio" name="num" value="2" /> 2</label></li>
  <li><label><input type="radio" name="num" value="3" /> 3</label></li>
  </ul>""")
  
          # If 'choices' is passed to both the constructor and render(), then they'll both be in the output:
          self.assertHTMLEqual(w.render('num', 2, choices=[(4, 4), (5, 5)]), """<ul>
  <li><label><input type="radio" name="num" value="1" /> 1</label></li>
  <li><label><input checked="checked" type="radio" name="num" value="2" /> 2</label></li>
  <li><label><input type="radio" name="num" value="3" /> 3</label></li>
  <li><label><input type="radio" name="num" value="4" /> 4</label></li>
  <li><label><input type="radio" name="num" value="5" /> 5</label></li>
  </ul>""")
  
          # RadioSelect uses a RadioFieldRenderer to render the individual radio inputs.
          # You can manipulate that object directly to customize the way the RadioSelect
          # is rendered.
          w = RadioSelect()
          r = w.get_renderer('beatle', 'J', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
          inp_set1 = []
          inp_set2 = []
          inp_set3 = []
          inp_set4 = []
  
          for inp in r:
              inp_set1.append(str(inp))
              inp_set2.append('%s<br />' % inp)
              inp_set3.append('<p>%s %s</p>' % (inp.tag(), inp.choice_label))
              inp_set4.append('%s %s %s %s %s' % (inp.name, inp.value, inp.choice_value, inp.choice_label, inp.is_checked()))
  
          self.assertHTMLEqual('\n'.join(inp_set1), """<label><input checked="checked" type="radio" name="beatle" value="J" /> John</label>
  <label><input type="radio" name="beatle" value="P" /> Paul</label>
  <label><input type="radio" name="beatle" value="G" /> George</label>
  <label><input type="radio" name="beatle" value="R" /> Ringo</label>""")
          self.assertHTMLEqual('\n'.join(inp_set2), """<label><input checked="checked" type="radio" name="beatle" value="J" /> John</label><br />
  <label><input type="radio" name="beatle" value="P" /> Paul</label><br />
  <label><input type="radio" name="beatle" value="G" /> George</label><br />
  <label><input type="radio" name="beatle" value="R" /> Ringo</label><br />""")
          self.assertHTMLEqual('\n'.join(inp_set3), """<p><input checked="checked" type="radio" name="beatle" value="J" /> John</p>
  <p><input type="radio" name="beatle" value="P" /> Paul</p>
  <p><input type="radio" name="beatle" value="G" /> George</p>
  <p><input type="radio" name="beatle" value="R" /> Ringo</p>""")
          self.assertHTMLEqual('\n'.join(inp_set4), """beatle J J John True
  beatle J P Paul False
  beatle J G George False
  beatle J R Ringo False""")
  
          # You can create your own custom renderers for RadioSelect to use.
          class MyRenderer(RadioFieldRenderer):
             def render(self):
                 return u'<br />\n'.join([unicode(choice) for choice in self])
          w = RadioSelect(renderer=MyRenderer)
          self.assertHTMLEqual(w.render('beatle', 'G', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<label><input type="radio" name="beatle" value="J" /> John</label><br />
  <label><input type="radio" name="beatle" value="P" /> Paul</label><br />
  <label><input checked="checked" type="radio" name="beatle" value="G" /> George</label><br />
  <label><input type="radio" name="beatle" value="R" /> Ringo</label>""")
  
          # Or you can use custom RadioSelect fields that use your custom renderer.
          class CustomRadioSelect(RadioSelect):
             renderer = MyRenderer
          w = CustomRadioSelect()
          self.assertHTMLEqual(w.render('beatle', 'G', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<label><input type="radio" name="beatle" value="J" /> John</label><br />
  <label><input type="radio" name="beatle" value="P" /> Paul</label><br />
  <label><input checked="checked" type="radio" name="beatle" value="G" /> George</label><br />
  <label><input type="radio" name="beatle" value="R" /> Ringo</label>""")
  
          # A RadioFieldRenderer object also allows index access to individual RadioInput
          w = RadioSelect()
          r = w.get_renderer('beatle', 'J', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
          self.assertHTMLEqual(str(r[1]), '<label><input type="radio" name="beatle" value="P" /> Paul</label>')
          self.assertHTMLEqual(str(r[0]), '<label><input checked="checked" type="radio" name="beatle" value="J" /> John</label>')
          self.assertTrue(r[0].is_checked())
          self.assertFalse(r[1].is_checked())
          self.assertEqual((r[1].name, r[1].value, r[1].choice_value, r[1].choice_label), ('beatle', u'J', u'P', u'Paul'))
  
          try:
              r[10]
              self.fail("This offset should not exist.")
          except IndexError:
              pass
  
          # Choices are escaped correctly
          w = RadioSelect()
          self.assertHTMLEqual(w.render('escape', None, choices=(('bad', 'you & me'), ('good', mark_safe('you &gt; me')))), """<ul>
  <li><label><input type="radio" name="escape" value="bad" /> you &amp; me</label></li>
  <li><label><input type="radio" name="escape" value="good" /> you &gt; me</label></li>
  </ul>""")
  
          # Unicode choices are correctly rendered as HTML
          w = RadioSelect()
          self.assertHTMLEqual(unicode(w.render('email', 'ŠĐĆŽćžšđ', choices=[('ŠĐĆŽćžšđ', 'ŠĐabcĆŽćžšđ'), ('ćžšđ', 'abcćžšđ')])), u'<ul>\n<li><label><input checked="checked" type="radio" name="email" value="\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111" /> \u0160\u0110abc\u0106\u017d\u0107\u017e\u0161\u0111</label></li>\n<li><label><input type="radio" name="email" value="\u0107\u017e\u0161\u0111" /> abc\u0107\u017e\u0161\u0111</label></li>\n</ul>')
  
          # Attributes provided at instantiation are passed to the constituent inputs
          w = RadioSelect(attrs={'id':'foo'})
          self.assertHTMLEqual(w.render('beatle', 'J', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<ul>
  <li><label for="foo_0"><input checked="checked" type="radio" id="foo_0" value="J" name="beatle" /> John</label></li>
  <li><label for="foo_1"><input type="radio" id="foo_1" value="P" name="beatle" /> Paul</label></li>
  <li><label for="foo_2"><input type="radio" id="foo_2" value="G" name="beatle" /> George</label></li>
  <li><label for="foo_3"><input type="radio" id="foo_3" value="R" name="beatle" /> Ringo</label></li>
  </ul>""")
  
          # Attributes provided at render-time are passed to the constituent inputs
          w = RadioSelect()
          self.assertHTMLEqual(w.render('beatle', 'J', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')), attrs={'id':'bar'}), """<ul>
  <li><label for="bar_0"><input checked="checked" type="radio" id="bar_0" value="J" name="beatle" /> John</label></li>
  <li><label for="bar_1"><input type="radio" id="bar_1" value="P" name="beatle" /> Paul</label></li>
  <li><label for="bar_2"><input type="radio" id="bar_2" value="G" name="beatle" /> George</label></li>
  <li><label for="bar_3"><input type="radio" id="bar_3" value="R" name="beatle" /> Ringo</label></li>
  </ul>""")
  
      def test_checkboxselectmultiple(self):
          w = CheckboxSelectMultiple()
          self.assertHTMLEqual(w.render('beatles', ['J'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<ul>
  <li><label><input checked="checked" type="checkbox" name="beatles" value="J" /> John</label></li>
  <li><label><input type="checkbox" name="beatles" value="P" /> Paul</label></li>
  <li><label><input type="checkbox" name="beatles" value="G" /> George</label></li>
  <li><label><input type="checkbox" name="beatles" value="R" /> Ringo</label></li>
  </ul>""")
          self.assertHTMLEqual(w.render('beatles', ['J', 'P'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<ul>
  <li><label><input checked="checked" type="checkbox" name="beatles" value="J" /> John</label></li>
  <li><label><input checked="checked" type="checkbox" name="beatles" value="P" /> Paul</label></li>
  <li><label><input type="checkbox" name="beatles" value="G" /> George</label></li>
  <li><label><input type="checkbox" name="beatles" value="R" /> Ringo</label></li>
  </ul>""")
          self.assertHTMLEqual(w.render('beatles', ['J', 'P', 'R'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<ul>
  <li><label><input checked="checked" type="checkbox" name="beatles" value="J" /> John</label></li>
  <li><label><input checked="checked" type="checkbox" name="beatles" value="P" /> Paul</label></li>
  <li><label><input type="checkbox" name="beatles" value="G" /> George</label></li>
  <li><label><input checked="checked" type="checkbox" name="beatles" value="R" /> Ringo</label></li>
  </ul>""")
  
          # If the value is None, none of the options are selected:
          self.assertHTMLEqual(w.render('beatles', None, choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<ul>
  <li><label><input type="checkbox" name="beatles" value="J" /> John</label></li>
  <li><label><input type="checkbox" name="beatles" value="P" /> Paul</label></li>
  <li><label><input type="checkbox" name="beatles" value="G" /> George</label></li>
  <li><label><input type="checkbox" name="beatles" value="R" /> Ringo</label></li>
  </ul>""")
  
          # If the value corresponds to a label (but not to an option value), none of the options are selected:
          self.assertHTMLEqual(w.render('beatles', ['John'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<ul>
  <li><label><input type="checkbox" name="beatles" value="J" /> John</label></li>
  <li><label><input type="checkbox" name="beatles" value="P" /> Paul</label></li>
  <li><label><input type="checkbox" name="beatles" value="G" /> George</label></li>
  <li><label><input type="checkbox" name="beatles" value="R" /> Ringo</label></li>
  </ul>""")
  
          # If multiple values are given, but some of them are not valid, the valid ones are selected:
          self.assertHTMLEqual(w.render('beatles', ['J', 'G', 'foo'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo'))), """<ul>
  <li><label><input checked="checked" type="checkbox" name="beatles" value="J" /> John</label></li>
  <li><label><input type="checkbox" name="beatles" value="P" /> Paul</label></li>
  <li><label><input checked="checked" type="checkbox" name="beatles" value="G" /> George</label></li>
  <li><label><input type="checkbox" name="beatles" value="R" /> Ringo</label></li>
  </ul>""")
  
          # The value is compared to its str():
          self.assertHTMLEqual(w.render('nums', [2], choices=[('1', '1'), ('2', '2'), ('3', '3')]), """<ul>
  <li><label><input type="checkbox" name="nums" value="1" /> 1</label></li>
  <li><label><input checked="checked" type="checkbox" name="nums" value="2" /> 2</label></li>
  <li><label><input type="checkbox" name="nums" value="3" /> 3</label></li>
  </ul>""")
          self.assertHTMLEqual(w.render('nums', ['2'], choices=[(1, 1), (2, 2), (3, 3)]), """<ul>
  <li><label><input type="checkbox" name="nums" value="1" /> 1</label></li>
  <li><label><input checked="checked" type="checkbox" name="nums" value="2" /> 2</label></li>
  <li><label><input type="checkbox" name="nums" value="3" /> 3</label></li>
  </ul>""")
          self.assertHTMLEqual(w.render('nums', [2], choices=[(1, 1), (2, 2), (3, 3)]), """<ul>
  <li><label><input type="checkbox" name="nums" value="1" /> 1</label></li>
  <li><label><input checked="checked" type="checkbox" name="nums" value="2" /> 2</label></li>
  <li><label><input type="checkbox" name="nums" value="3" /> 3</label></li>
  </ul>""")
  
          # The 'choices' argument can be any iterable:
          def get_choices():
              for i in range(5):
                  yield (i, i)
          self.assertHTMLEqual(w.render('nums', [2], choices=get_choices()), """<ul>
  <li><label><input type="checkbox" name="nums" value="0" /> 0</label></li>
  <li><label><input type="checkbox" name="nums" value="1" /> 1</label></li>
  <li><label><input checked="checked" type="checkbox" name="nums" value="2" /> 2</label></li>
  <li><label><input type="checkbox" name="nums" value="3" /> 3</label></li>
  <li><label><input type="checkbox" name="nums" value="4" /> 4</label></li>
  </ul>""")
  
          # You can also pass 'choices' to the constructor:
          w = CheckboxSelectMultiple(choices=[(1, 1), (2, 2), (3, 3)])
          self.assertHTMLEqual(w.render('nums', [2]), """<ul>
  <li><label><input type="checkbox" name="nums" value="1" /> 1</label></li>
  <li><label><input checked="checked" type="checkbox" name="nums" value="2" /> 2</label></li>
  <li><label><input type="checkbox" name="nums" value="3" /> 3</label></li>
  </ul>""")
  
          # If 'choices' is passed to both the constructor and render(), then they'll both be in the output:
          self.assertHTMLEqual(w.render('nums', [2], choices=[(4, 4), (5, 5)]), """<ul>
  <li><label><input type="checkbox" name="nums" value="1" /> 1</label></li>
  <li><label><input checked="checked" type="checkbox" name="nums" value="2" /> 2</label></li>
  <li><label><input type="checkbox" name="nums" value="3" /> 3</label></li>
  <li><label><input type="checkbox" name="nums" value="4" /> 4</label></li>
  <li><label><input type="checkbox" name="nums" value="5" /> 5</label></li>
  </ul>""")
  
          # Choices are escaped correctly
          self.assertHTMLEqual(w.render('escape', None, choices=(('bad', 'you & me'), ('good', mark_safe('you &gt; me')))), """<ul>
  <li><label><input type="checkbox" name="escape" value="1" /> 1</label></li>
  <li><label><input type="checkbox" name="escape" value="2" /> 2</label></li>
  <li><label><input type="checkbox" name="escape" value="3" /> 3</label></li>
  <li><label><input type="checkbox" name="escape" value="bad" /> you &amp; me</label></li>
  <li><label><input type="checkbox" name="escape" value="good" /> you &gt; me</label></li>
  </ul>""")
  
          # Test the usage of _has_changed
          self.assertFalse(w._has_changed(None, None))
          self.assertFalse(w._has_changed([], None))
          self.assertTrue(w._has_changed(None, [u'1']))
          self.assertFalse(w._has_changed([1, 2], [u'1', u'2']))
          self.assertTrue(w._has_changed([1, 2], [u'1']))
          self.assertTrue(w._has_changed([1, 2], [u'1', u'3']))
          self.assertFalse(w._has_changed([2, 1], [u'1', u'2']))
  
          # Unicode choices are correctly rendered as HTML
          self.assertHTMLEqual(w.render('nums', ['ŠĐĆŽćžšđ'], choices=[('ŠĐĆŽćžšđ', 'ŠĐabcĆŽćžšđ'), ('ćžšđ', 'abcćžšđ')]), u'<ul>\n<li><label><input type="checkbox" name="nums" value="1" /> 1</label></li>\n<li><label><input type="checkbox" name="nums" value="2" /> 2</label></li>\n<li><label><input type="checkbox" name="nums" value="3" /> 3</label></li>\n<li><label><input checked="checked" type="checkbox" name="nums" value="\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111" /> \u0160\u0110abc\u0106\u017d\u0107\u017e\u0161\u0111</label></li>\n<li><label><input type="checkbox" name="nums" value="\u0107\u017e\u0161\u0111" /> abc\u0107\u017e\u0161\u0111</label></li>\n</ul>')
  
          # Each input gets a separate ID
          self.assertHTMLEqual(CheckboxSelectMultiple().render('letters', list('ac'), choices=zip(list('abc'), list('ABC')), attrs={'id': 'abc'}), """<ul>
  <li><label for="abc_0"><input checked="checked" type="checkbox" name="letters" value="a" id="abc_0" /> A</label></li>
  <li><label for="abc_1"><input type="checkbox" name="letters" value="b" id="abc_1" /> B</label></li>
  <li><label for="abc_2"><input checked="checked" type="checkbox" name="letters" value="c" id="abc_2" /> C</label></li>
  </ul>""")
  
      def test_multi(self):
          class MyMultiWidget(MultiWidget):
              def decompress(self, value):
                  if value:
                      return value.split('__')
                  return ['', '']
              def format_output(self, rendered_widgets):
                  return u'<br />'.join(rendered_widgets)
  
          w = MyMultiWidget(widgets=(TextInput(attrs={'class': 'big'}), TextInput(attrs={'class': 'small'})))
          self.assertHTMLEqual(w.render('name', ['john', 'lennon']), u'<input type="text" class="big" value="john" name="name_0" /><br /><input type="text" class="small" value="lennon" name="name_1" />')
          self.assertHTMLEqual(w.render('name', 'john__lennon'), u'<input type="text" class="big" value="john" name="name_0" /><br /><input type="text" class="small" value="lennon" name="name_1" />')
          self.assertHTMLEqual(w.render('name', 'john__lennon', attrs={'id':'foo'}), u'<input id="foo_0" type="text" class="big" value="john" name="name_0" /><br /><input id="foo_1" type="text" class="small" value="lennon" name="name_1" />')
          w = MyMultiWidget(widgets=(TextInput(attrs={'class': 'big'}), TextInput(attrs={'class': 'small'})), attrs={'id': 'bar'})
          self.assertHTMLEqual(w.render('name', ['john', 'lennon']), u'<input id="bar_0" type="text" class="big" value="john" name="name_0" /><br /><input id="bar_1" type="text" class="small" value="lennon" name="name_1" />')
  
          w = MyMultiWidget(widgets=(TextInput(), TextInput()))
  
          # test with no initial data
          self.assertTrue(w._has_changed(None, [u'john', u'lennon']))
  
          # test when the data is the same as initial
          self.assertFalse(w._has_changed(u'john__lennon', [u'john', u'lennon']))
  
          # test when the first widget's data has changed
          self.assertTrue(w._has_changed(u'john__lennon', [u'alfred', u'lennon']))
  
          # test when the last widget's data has changed. this ensures that it is not
          # short circuiting while testing the widgets.
          self.assertTrue(w._has_changed(u'john__lennon', [u'john', u'denver']))
  
      def test_splitdatetime(self):
          w = SplitDateTimeWidget()
          self.assertHTMLEqual(w.render('date', ''), u'<input type="text" name="date_0" /><input type="text" name="date_1" />')
          self.assertHTMLEqual(w.render('date', None), u'<input type="text" name="date_0" /><input type="text" name="date_1" />')
          self.assertHTMLEqual(w.render('date', datetime.datetime(2006, 1, 10, 7, 30)), u'<input type="text" name="date_0" value="2006-01-10" /><input type="text" name="date_1" value="07:30:00" />')
          self.assertHTMLEqual(w.render('date', [datetime.date(2006, 1, 10), datetime.time(7, 30)]), u'<input type="text" name="date_0" value="2006-01-10" /><input type="text" name="date_1" value="07:30:00" />')
  
          # You can also pass 'attrs' to the constructor. In this case, the attrs will be
          w = SplitDateTimeWidget(attrs={'class': 'pretty'})
          self.assertHTMLEqual(w.render('date', datetime.datetime(2006, 1, 10, 7, 30)), u'<input type="text" class="pretty" value="2006-01-10" name="date_0" /><input type="text" class="pretty" value="07:30:00" name="date_1" />')
  
          # Use 'date_format' and 'time_format' to change the way a value is displayed.
          w = SplitDateTimeWidget(date_format='%d/%m/%Y', time_format='%H:%M')
          self.assertHTMLEqual(w.render('date', datetime.datetime(2006, 1, 10, 7, 30)), u'<input type="text" name="date_0" value="10/01/2006" /><input type="text" name="date_1" value="07:30" />')
  
          self.assertTrue(w._has_changed(datetime.datetime(2008, 5, 6, 12, 40, 00), [u'2008-05-06', u'12:40:00']))
          self.assertFalse(w._has_changed(datetime.datetime(2008, 5, 6, 12, 40, 00), [u'06/05/2008', u'12:40']))
          self.assertTrue(w._has_changed(datetime.datetime(2008, 5, 6, 12, 40, 00), [u'06/05/2008', u'12:41']))
  
      def test_datetimeinput(self):
          w = DateTimeInput()
          self.assertHTMLEqual(w.render('date', None), u'<input type="text" name="date" />')
          d = datetime.datetime(2007, 9, 17, 12, 51, 34, 482548)
          self.assertEqual(str(d), '2007-09-17 12:51:34.482548')
  
          # The microseconds are trimmed on display, by default.
          self.assertHTMLEqual(w.render('date', d), u'<input type="text" name="date" value="2007-09-17 12:51:34" />')
          self.assertHTMLEqual(w.render('date', datetime.datetime(2007, 9, 17, 12, 51, 34)), u'<input type="text" name="date" value="2007-09-17 12:51:34" />')
          self.assertHTMLEqual(w.render('date', datetime.datetime(2007, 9, 17, 12, 51)), u'<input type="text" name="date" value="2007-09-17 12:51:00" />')
  
          # Use 'format' to change the way a value is displayed.
          w = DateTimeInput(format='%d/%m/%Y %H:%M')
          self.assertHTMLEqual(w.render('date', d), u'<input type="text" name="date" value="17/09/2007 12:51" />')
          self.assertFalse(w._has_changed(d, '17/09/2007 12:51'))
  
          # Make sure a custom format works with _has_changed. The hidden input will use
          data = datetime.datetime(2010, 3, 6, 12, 0, 0)
          custom_format = '%d.%m.%Y %H:%M'
          w = DateTimeInput(format=custom_format)
          self.assertFalse(w._has_changed(formats.localize_input(data), data.strftime(custom_format)))
  
      def test_dateinput(self):
          w = DateInput()
          self.assertHTMLEqual(w.render('date', None), u'<input type="text" name="date" />')
          d = datetime.date(2007, 9, 17)
          self.assertEqual(str(d), '2007-09-17')
  
          self.assertHTMLEqual(w.render('date', d), u'<input type="text" name="date" value="2007-09-17" />')
          self.assertHTMLEqual(w.render('date', datetime.date(2007, 9, 17)), u'<input type="text" name="date" value="2007-09-17" />')
  
          # We should be able to initialize from a unicode value.
          self.assertHTMLEqual(w.render('date', u'2007-09-17'), u'<input type="text" name="date" value="2007-09-17" />')
  
          # Use 'format' to change the way a value is displayed.
          w = DateInput(format='%d/%m/%Y')
          self.assertHTMLEqual(w.render('date', d), u'<input type="text" name="date" value="17/09/2007" />')
          self.assertFalse(w._has_changed(d, '17/09/2007'))
  
          # Make sure a custom format works with _has_changed. The hidden input will use
          data = datetime.date(2010, 3, 6)
          custom_format = '%d.%m.%Y'
          w = DateInput(format=custom_format)
          self.assertFalse(w._has_changed(formats.localize_input(data), data.strftime(custom_format)))
  
      def test_timeinput(self):
          w = TimeInput()
          self.assertHTMLEqual(w.render('time', None), u'<input type="text" name="time" />')
          t = datetime.time(12, 51, 34, 482548)
          self.assertEqual(str(t), '12:51:34.482548')
  
          # The microseconds are trimmed on display, by default.
          self.assertHTMLEqual(w.render('time', t), u'<input type="text" name="time" value="12:51:34" />')
          self.assertHTMLEqual(w.render('time', datetime.time(12, 51, 34)), u'<input type="text" name="time" value="12:51:34" />')
          self.assertHTMLEqual(w.render('time', datetime.time(12, 51)), u'<input type="text" name="time" value="12:51:00" />')
  
          # We should be able to initialize from a unicode value.
          self.assertHTMLEqual(w.render('time', u'13:12:11'), u'<input type="text" name="time" value="13:12:11" />')
  
          # Use 'format' to change the way a value is displayed.
          w = TimeInput(format='%H:%M')
          self.assertHTMLEqual(w.render('time', t), u'<input type="text" name="time" value="12:51" />')
          self.assertFalse(w._has_changed(t, '12:51'))
  
          # Make sure a custom format works with _has_changed. The hidden input will use
          data = datetime.time(13, 0)
          custom_format = '%I:%M %p'
          w = TimeInput(format=custom_format)
          self.assertFalse(w._has_changed(formats.localize_input(data), data.strftime(custom_format)))
  
      def test_splithiddendatetime(self):
          from django.forms.widgets import SplitHiddenDateTimeWidget
  
          w = SplitHiddenDateTimeWidget()
          self.assertHTMLEqual(w.render('date', ''), u'<input type="hidden" name="date_0" /><input type="hidden" name="date_1" />')
          d = datetime.datetime(2007, 9, 17, 12, 51, 34, 482548)
          self.assertHTMLEqual(str(d), '2007-09-17 12:51:34.482548')
          self.assertHTMLEqual(w.render('date', d), u'<input type="hidden" name="date_0" value="2007-09-17" /><input type="hidden" name="date_1" value="12:51:34" />')
          self.assertHTMLEqual(w.render('date', datetime.datetime(2007, 9, 17, 12, 51, 34)), u'<input type="hidden" name="date_0" value="2007-09-17" /><input type="hidden" name="date_1" value="12:51:34" />')
          self.assertHTMLEqual(w.render('date', datetime.datetime(2007, 9, 17, 12, 51)), u'<input type="hidden" name="date_0" value="2007-09-17" /><input type="hidden" name="date_1" value="12:51:00" />')
  
  
  class NullBooleanSelectLazyForm(Form):
      """Form to test for lazy evaluation. Refs #17190"""
      bool = BooleanField(widget=NullBooleanSelect())
  
  class FormsI18NWidgetsTestCase(TestCase):
      def setUp(self):
          super(FormsI18NWidgetsTestCase, self).setUp()
          self.old_use_l10n = getattr(settings, 'USE_L10N', False)
          settings.USE_L10N = True
          activate('de-at')
  
      def tearDown(self):
          deactivate()
          settings.USE_L10N = self.old_use_l10n
          super(FormsI18NWidgetsTestCase, self).tearDown()
  
      def test_splitdatetime(self):
          w = SplitDateTimeWidget(date_format='%d/%m/%Y', time_format='%H:%M')
          self.assertTrue(w._has_changed(datetime.datetime(2008, 5, 6, 12, 40, 00), [u'06.05.2008', u'12:41']))
  
      def test_datetimeinput(self):
          w = DateTimeInput()
          d = datetime.datetime(2007, 9, 17, 12, 51, 34, 482548)
          w.is_localized = True
          self.assertHTMLEqual(w.render('date', d), u'<input type="text" name="date" value="17.09.2007 12:51:34" />')
  
      def test_dateinput(self):
          w = DateInput()
          d = datetime.date(2007, 9, 17)
          w.is_localized = True
          self.assertHTMLEqual(w.render('date', d), u'<input type="text" name="date" value="17.09.2007" />')
  
      def test_timeinput(self):
          w = TimeInput()
          t = datetime.time(12, 51, 34, 482548)
          w.is_localized = True
          self.assertHTMLEqual(w.render('time', t), u'<input type="text" name="time" value="12:51:34" />')
  
      def test_splithiddendatetime(self):
          from django.forms.widgets import SplitHiddenDateTimeWidget
  
          w = SplitHiddenDateTimeWidget()
          w.is_localized = True
          self.assertHTMLEqual(w.render('date', datetime.datetime(2007, 9, 17, 12, 51)), u'<input type="hidden" name="date_0" value="17.09.2007" /><input type="hidden" name="date_1" value="12:51:00" />')
  
      def test_nullbooleanselect(self):
          """
          Ensure that the NullBooleanSelect widget's options are lazily
          localized.
          Refs #17190
          """
          f = NullBooleanSelectLazyForm()
          self.assertHTMLEqual(f.fields['bool'].widget.render('id_bool', True), u'<select name="id_bool">\n<option value="1">Unbekannt</option>\n<option value="2" selected="selected">Ja</option>\n<option value="3">Nein</option>\n</select>')
  
  
  class SelectAndTextWidget(MultiWidget):
      """
      MultiWidget subclass
      """
      def __init__(self, choices=[]):
          widgets = [
              RadioSelect(choices=choices),
              TextInput
          ]
          super(SelectAndTextWidget, self).__init__(widgets)
  
      def _set_choices(self, choices):
          """
          When choices are set for this widget, we want to pass those along to the Select widget
          """
          self.widgets[0].choices = choices
      def _get_choices(self):
          """
          The choices for this widget are the Select widget's choices
          """
          return self.widgets[0].choices
      choices = property(_get_choices, _set_choices)
  
  
  class WidgetTests(TestCase):
      def test_12048(self):
          # See ticket #12048.
          w1 = SelectAndTextWidget(choices=[1,2,3])
          w2 = copy.deepcopy(w1)
          w2.choices = [4,5,6]
          # w2 ought to be independent of w1, since MultiWidget ought
          # to make a copy of its sub-widgets when it is copied.
          self.assertEqual(w1.choices, [1,2,3])
  
      def test_13390(self):
          # See ticket #13390
          class SplitDateForm(Form):
              field = DateTimeField(widget=SplitDateTimeWidget, required=False)
  
          form = SplitDateForm({'field': ''})
          self.assertTrue(form.is_valid())
          form = SplitDateForm({'field': ['', '']})
          self.assertTrue(form.is_valid())
  
          class SplitDateRequiredForm(Form):
              field = DateTimeField(widget=SplitDateTimeWidget, required=True)
  
          form = SplitDateRequiredForm({'field': ''})
          self.assertFalse(form.is_valid())
          form = SplitDateRequiredForm({'field': ['', '']})
          self.assertFalse(form.is_valid())
  
  
  class FakeFieldFile(object):
      """
      Quacks like a FieldFile (has a .url and unicode representation), but
      doesn't require us to care about storages etc.
  
      """
      url = 'something'
  
      def __unicode__(self):
          return self.url
  
  class ClearableFileInputTests(TestCase):
      def test_clear_input_renders(self):
          """
          A ClearableFileInput with is_required False and rendered with
          an initial value that is a file renders a clear checkbox.
  
          """
          widget = ClearableFileInput()
          widget.is_required = False
          self.assertHTMLEqual(widget.render('myfile', FakeFieldFile()),
                           u'Currently: <a href="something">something</a> <input type="checkbox" name="myfile-clear" id="myfile-clear_id" /> <label for="myfile-clear_id">Clear</label><br />Change: <input type="file" name="myfile" />')
  
      def test_html_escaped(self):
          """
          A ClearableFileInput should escape name, filename and URL when
          rendering HTML. Refs #15182.
          """
  
          class StrangeFieldFile(object):
              url = "something?chapter=1&sect=2&copy=3&lang=en"
  
              def __unicode__(self):
                  return u'''something<div onclick="alert('oops')">.jpg'''
  
          widget = ClearableFileInput()
          field = StrangeFieldFile()
          output = widget.render('my<div>file', field)
          self.assertFalse(field.url in output)
          self.assertTrue(u'href="something?chapter=1&amp;sect=2&amp;copy=3&amp;lang=en"' in output)
          self.assertFalse(unicode(field) in output)
          self.assertTrue(u'something&lt;div onclick=&quot;alert(&#39;oops&#39;)&quot;&gt;.jpg' in output)
          self.assertTrue(u'my&lt;div&gt;file' in output)
          self.assertFalse(u'my<div>file' in output)
  
      def test_clear_input_renders_only_if_not_required(self):
          """
          A ClearableFileInput with is_required=False does not render a clear
          checkbox.
  
          """
          widget = ClearableFileInput()
          widget.is_required = True
          self.assertHTMLEqual(widget.render('myfile', FakeFieldFile()),
                           u'Currently: <a href="something">something</a> <br />Change: <input type="file" name="myfile" />')
  
      def test_clear_input_renders_only_if_initial(self):
          """
          A ClearableFileInput instantiated with no initial value does not render
          a clear checkbox.
  
          """
          widget = ClearableFileInput()
          widget.is_required = False
          self.assertHTMLEqual(widget.render('myfile', None),
                           u'<input type="file" name="myfile" />')
  
      def test_clear_input_checked_returns_false(self):
          """
          ClearableFileInput.value_from_datadict returns False if the clear
          checkbox is checked, if not required.
  
          """
          widget = ClearableFileInput()
          widget.is_required = False
          self.assertEqual(widget.value_from_datadict(
                  data={'myfile-clear': True},
                  files={},
                  name='myfile'), False)
  
      def test_clear_input_checked_returns_false_only_if_not_required(self):
          """
          ClearableFileInput.value_from_datadict never returns False if the field
          is required.
  
          """
          widget = ClearableFileInput()
          widget.is_required = True
          f = SimpleUploadedFile('something.txt', 'content')
          self.assertEqual(widget.value_from_datadict(
                  data={'myfile-clear': True},
                  files={'myfile': f},
                  name='myfile'), f)
  