'Two L{OPTHeader} instances compare equal if they have the same
options.'

def test_equalityOptions(self):

    self.assertNormalEqualityImplementation(dns._OPTHeader(options=[dns._OPTVariableOption(1, 'x')]), dns._OPTHeader(options=[dns._OPTVariableOption(1, 'x')]), dns._OPTHeader(options=[dns._OPTVariableOption(2, 'y')]))
