text: import datetime
  
  from django.forms import MultiWidget, RadioSelect
  from django.test import override_settings
  
  from .base import WidgetTest
  
  
  class RadioSelectTest(WidgetTest):
      widget = RadioSelect
  
      def test_render(self):
          choices = (('', '------'),) + self.beatles
          self.check_html(self.widget(choices=choices), 'beatle', 'J', html="""
              <div>
              <div><label><input type="radio" name="beatle" value=""> ------</label></div>
              <div><label><input checked type="radio" name="beatle" value="J"> John</label></div>
              <div><label><input type="radio" name="beatle" value="P"> Paul</label></div>
              <div><label><input type="radio" name="beatle" value="G"> George</label></div>
              <div><label><input type="radio" name="beatle" value="R"> Ringo</label></div>
              </div>
          """)
  
      def test_nested_choices(self):
          nested_choices = (
              ('unknown', 'Unknown'),
              ('Audio', (('vinyl', 'Vinyl'), ('cd', 'CD'))),
              ('Video', (('vhs', 'VHS'), ('dvd', 'DVD'))),
          )
          html = """
          <div id="media">
          <div>
          <label for="media_0"><input type="radio" name="nestchoice" value="unknown" id="media_0"> Unknown</label></div>
          <div>
          <label>Audio</label>
          <div>
          <label for="media_1_0"><input type="radio" name="nestchoice" value="vinyl" id="media_1_0"> Vinyl</label></div>
          <div> <label for="media_1_1"><input type="radio" name="nestchoice" value="cd" id="media_1_1"> CD</label></div>
          </div><div>
          <label>Video</label>
          <div>
          <label for="media_2_0"><input type="radio" name="nestchoice" value="vhs" id="media_2_0"> VHS</label></div>
          <div>
          <label for="media_2_1"><input type="radio" name="nestchoice" value="dvd" id="media_2_1" checked> DVD</label>
          </div>
          </div>
          </div>
          """
          self.check_html(
              self.widget(choices=nested_choices), 'nestchoice', 'dvd',
              attrs={'id': 'media'}, html=html,
          )
  
      def test_constructor_attrs(self):
          """
          Attributes provided at instantiation are passed to the constituent
          inputs.
          """
          widget = RadioSelect(attrs={'id': 'foo'}, choices=self.beatles)
          html = """
          <div id="foo">
          <div>
          <label for="foo_0"><input checked type="radio" id="foo_0" value="J" name="beatle"> John</label>
          </div>
          <div><label for="foo_1"><input type="radio" id="foo_1" value="P" name="beatle"> Paul</label></div>
          <div><label for="foo_2"><input type="radio" id="foo_2" value="G" name="beatle"> George</label></div>
          <div><label for="foo_3"><input type="radio" id="foo_3" value="R" name="beatle"> Ringo</label></div>
          </div>
          """
          self.check_html(widget, 'beatle', 'J', html=html)
  
      def test_render_attrs(self):
          """
          Attributes provided at render-time are passed to the constituent
          inputs.
          """
          html = """
          <div id="bar">
          <div>
          <label for="bar_0"><input checked type="radio" id="bar_0" value="J" name="beatle"> John</label>
          </div>
          <div><label for="bar_1"><input type="radio" id="bar_1" value="P" name="beatle"> Paul</label></div>
          <div><label for="bar_2"><input type="radio" id="bar_2" value="G" name="beatle"> George</label></div>
          <div><label for="bar_3"><input type="radio" id="bar_3" value="R" name="beatle"> Ringo</label></div>
          </div>
          """
          self.check_html(self.widget(choices=self.beatles), 'beatle', 'J', attrs={'id': 'bar'}, html=html)
  
      def test_class_attrs(self):
          """
          The <div> in the multiple_input.html widget template include the class
          attribute.
          """
          html = """
          <div class="bar">
          <div><label><input checked type="radio" class="bar" value="J" name="beatle"> John</label></div>
          <div><label><input type="radio" class="bar" value="P" name="beatle"> Paul</label></div>
          <div><label><input type="radio" class="bar" value="G" name="beatle"> George</label></div>
          <div><label><input type="radio" class="bar" value="R" name="beatle"> Ringo</label></div>
          </div>
          """
          self.check_html(self.widget(choices=self.beatles), 'beatle', 'J', attrs={'class': 'bar'}, html=html)
  
      @override_settings(USE_THOUSAND_SEPARATOR=True)
      def test_doesnt_localize_input_value(self):
          choices = [
              (1, 'One'),
              (1000, 'One thousand'),
              (1000000, 'One million'),
          ]
          html = """
          <div>
          <div><label><input type="radio" name="number" value="1"> One</label></div>
          <div><label><input type="radio" name="number" value="1000"> One thousand</label></div>
          <div><label><input type="radio" name="number" value="1000000"> One million</label></div>
          </div>
          """
          self.check_html(self.widget(choices=choices), 'number', None, html=html)
  
          choices = [
              (datetime.time(0, 0), 'midnight'),
              (datetime.time(12, 0), 'noon'),
          ]
          html = """
          <div>
          <div><label><input type="radio" name="time" value="00:00:00"> midnight</label></div>
          <div><label><input type="radio" name="time" value="12:00:00"> noon</label></div>
          </div>
          """
          self.check_html(self.widget(choices=choices), 'time', None, html=html)
  
      def test_render_as_subwidget(self):
          """A RadioSelect as a subwidget of MultiWidget."""
          choices = (('', '------'),) + self.beatles
          self.check_html(MultiWidget([self.widget(choices=choices)]), 'beatle', ['J'], html="""
              <div>
              <div><label><input type="radio" name="beatle_0" value=""> ------</label></div>
              <div><label><input checked type="radio" name="beatle_0" value="J"> John</label></div>
              <div><label><input type="radio" name="beatle_0" value="P"> Paul</label></div>
              <div><label><input type="radio" name="beatle_0" value="G"> George</label></div>
              <div><label><input type="radio" name="beatle_0" value="R"> Ringo</label></div>
              </div>
          """)
  