def METHOD_NAME(self):
    value = {'name': 'foo', 'value': 1}
    orig_root = self.get_merkle_root()
    new_root = self.set('foo', value)
    self.assert_root(orig_root)
    self.assert_no_key('foo')
    self.set_merkle_root(new_root)
    self.assert_root(new_root)
    self.assert_value_at_address('foo', value)