old_contents: # -*- coding: utf-8 -*-
  
  from django.utils import unittest
  from .templatetags.gravatar import gravatar_url, gravatar
  
  
  class TestGravatar(unittest.TestCase):
      def test_gravatar_url(self):
          self.assertEquals('http://www.gravatar.com/avatar/d7935ea08d17e261d3b0d12c04759c9d?s=80&d=', gravatar_url('alexis.couronne@gmail.com'))
          self.assertEquals('http://www.gravatar.com/avatar/d7935ea08d17e261d3b0d12c04759c9d?s=120&d=', gravatar_url('alexis.couronne@gmail.com', 120))
  
new_contents: # -*- coding: utf-8 -*-
  
  from django.utils import unittest
  from .templatetags.gravatar import gravatar_url, gravatar
  
  
  class TestGravatar(unittest.TestCase):
      def test_gravatar_url(self):
          self.assertEquals('http://www.gravatar.com/avatar/d7935ea08d17e261d3b0d12c04759c9d?s=80&d=', gravatar_url('alexis.couronne@gmail.com'))
          self.assertEquals('http://www.gravatar.com/avatar/d7935ea08d17e261d3b0d12c04759c9d?s=120&d=', gravatar_url('alexis.couronne@gmail.com', 120))
  
      def test_gavatar(self):
          html = '<img src="http://www.gravatar.com/avatar/d7935ea08d17e261d3b0d12c04759c9d?s=80&d=" width="80" height="80"  >'
          self.assertEquals(html, gravatar('alexis.couronne@gmail.com'))
  
          html = '<img src="http://www.gravatar.com/avatar/d7935ea08d17e261d3b0d12c04759c9d?s=130&d=" width="130" height="130"  >'
          self.assertEquals(html, gravatar('alexis.couronne@gmail.com', 130))
  
          html = '<img src="http://www.gravatar.com/avatar/d7935ea08d17e261d3b0d12c04759c9d?s=180&d=" width="180" height="180" class="avatar" >'
          self.assertEquals(html, gravatar('alexis.couronne@gmail.com', 180, 'class="avatar"'))
  
subject: add test for gravatar function