old_contents: 
  from django.test import TestCase
  
  from ..templatetags.breadcrumbs import breadcrumbs
  
  class BreadcrumbTest(TestCase):
  
  
      def test_breadcrumbs(self):
          """Check that the breadcrumbs are generated as expected"""
  
          home_li = '<li><a href="/" title="Breadcrumb link to the homepage.">Home</a>  <span class="sep">&raquo;</span>  </li>'
  
          tests = (
              # input, expected output
              ( '/',        '<li>Home</li>'),
              ( '/foo',     home_li + '<li>Foo</li>'),
              ( '/foo/bar', home_li + '<li><a href="foo/" title="Breadcrumb link to Foo">Foo</a>  <span class="sep">&raquo;</span> </li><li>Bar</li>'),
  
              # Test that coordinates are passed through correctly
              # (don't drop '-', put space after ',')
              # See issue #762
              ( '/-1.23,4.56', home_li + '<li>-1.23, 4.56</li>'),
          )
  
          for url, expected in tests:
              actual = breadcrumbs(url)
              self.assertEqual(actual, expected)
  
  
new_contents: 
  from django.test import TestCase
  
  from ..templatetags.breadcrumbs import breadcrumbs
  from ..templatetags.active_class import active_class
  
  
  class BreadcrumbTest(TestCase):
  
  
      def test_breadcrumbs(self):
          """Check that the breadcrumbs are generated as expected"""
  
          home_li = '<li><a href="/" title="Breadcrumb link to the homepage.">Home</a>  <span class="sep">&raquo;</span>  </li>'
  
          tests = (
              # input, expected output
              ( '/',        '<li>Home</li>'),
              ( '/foo',     home_li + '<li>Foo</li>'),
              ( '/foo/bar', home_li + '<li><a href="foo/" title="Breadcrumb link to Foo">Foo</a>  <span class="sep">&raquo;</span> </li><li>Bar</li>'),
  
              # Test that coordinates are passed through correctly
              # (don't drop '-', put space after ',')
              # See issue #762
              ( '/-1.23,4.56', home_li + '<li>-1.23, 4.56</li>'),
          )
  
          for url, expected in tests:
              actual = breadcrumbs(url)
              self.assertEqual(actual, expected)
  
  
  class ActiveClassTest(TestCase):
  
      def test_active(self):
          """Check that active is returned when the url matches the input"""
  
          tests = (
                  ('/', 'home', {}),
                  ('/place/foo/', 'place', {'slug': 'foo'}),
          )
  
          for current_url, route_name, kwargs in tests:
              actual = active_class(current_url, route_name, **kwargs)
              self.assertEqual(' active ', actual)
  
          self.assertEqual(active_class('/foo', 'home'), '')
  
subject: Add tests for active_class templatetag