old_contents: import unittest
  from bottle import ConfigDict
  
  class TestConfDict(unittest.TestCase):
      def test_write(self):
          c = ConfigDict()
          c['key'] = 'value'
          self.assertEqual(c['key'], 'value')
          self.assertTrue('key' in c)
          c['key'] = 'value2'
          self.assertEqual(c['key'], 'value2')
  
      def test_update(self):
          c = ConfigDict()
          c['key'] = 'value'
          c.update(key='value2', key2='value3')
          self.assertEqual(c['key'], 'value2')
          self.assertEqual(c['key2'], 'value3')
  
      def test_namespaces(self):
          c = ConfigDict()
          c.update('a.b', key='value')
          self.assertEqual(c['a.b.key'], 'value')
          self.assertEqual(c['a.b.key'], 'value')
  
      def test_meta(self):
          c = ConfigDict()
          c.meta_set('bool', 'filter', bool)
          c.meta_set('int', 'filter', int)
          c['bool'] = 'I am so true!'
          c['int']  = '6'
          self.assertTrue(c['bool'] is True)
          self.assertEquals(c['int'], 6)
          self.assertRaises(ValueError, lambda: c.update(int='not an int'))
  
      def test_load_dict(self):
          c = ConfigDict()
          d = dict(a=dict(b=dict(foo=5, bar=6), baz=7))
          c.load_dict(d)
          self.assertEquals(c['a.b.foo'], 5)
          self.assertEquals(c['a.b.bar'], 6)
          self.assertEquals(c['a.baz'], 7)
     
  if __name__ == '__main__': #pragma: no cover
      unittest.main()
  
  
new_contents: import unittest
  from bottle import ConfigDict
  
  class TestConfDict(unittest.TestCase):
      def test_write(self):
          c = ConfigDict()
          c['key'] = 'value'
          self.assertEqual(c['key'], 'value')
          self.assertTrue('key' in c)
          c['key'] = 'value2'
          self.assertEqual(c['key'], 'value2')
  
      def test_update(self):
          c = ConfigDict()
          c['key'] = 'value'
          c.update(key='value2', key2='value3')
          self.assertEqual(c['key'], 'value2')
          self.assertEqual(c['key2'], 'value3')
  
      def test_namespaces(self):
          c = ConfigDict()
          c.update('a.b', key='value')
          self.assertEqual(c['a.b.key'], 'value')
  
      def test_meta(self):
          c = ConfigDict()
          c.meta_set('bool', 'filter', bool)
          c.meta_set('int', 'filter', int)
          c['bool'] = 'I am so true!'
          c['int']  = '6'
          self.assertTrue(c['bool'] is True)
          self.assertEquals(c['int'], 6)
          self.assertRaises(ValueError, lambda: c.update(int='not an int'))
  
      def test_load_dict(self):
          c = ConfigDict()
          d = dict(a=dict(b=dict(foo=5, bar=6), baz=7))
          c.load_dict(d)
          self.assertEquals(c['a.b.foo'], 5)
          self.assertEquals(c['a.b.bar'], 6)
          self.assertEquals(c['a.baz'], 7)
     
  if __name__ == '__main__': #pragma: no cover
      unittest.main()
  
  
subject: Delete duplicated assertEqual