def test_b(self):
        """Test the comparison of a simple dict of dict.

        The field is only present for one bucket.

        """
        comparer = ConfigComparer()
        d = {'3201-DGW-1': {'SURFTYPE': 0.0}}
        e = {'3201-DGW-1': {}}
        diff = comparer.dict_compare(d, e)
        self.assertEqual({'3201-DGW-1': {'SURFTYPE': (0.0, _('not present'))}}, diff)
    def test_c(self):
        """Test the comparison of a simple dict of dict.

        The bucket is only present in the new configuration.

        """
        comparer = ConfigComparer()
        d = {'3201-DGW-1': {'SURFTYPE': 0.0}}
        e = {}
        diff = comparer.dict_compare(d, e)
        self.assertEqual({'3201-DGW-1': {'SURFTYPE': (0.0, _('not present'))}}, diff)
    def test_a(self):
        """Test the comparison of a simple dict of dict.

        The fields are present for both buckets but with different values.

        """
        comparer = ConfigComparer()
        d = {'3201-DGW-1': {'SURFTYPE': 0.0}}
        e = {'3201-DGW-1': {'SURFTYPE': 0.1}}
        diff = comparer.dict_compare(d, e)
        self.assertEqual({'3201-DGW-1': {'SURFTYPE': (0.0, 0.1)}}, diff)