it { is_expected.to run.with_params('a').and_return('a') }
it { is_expected.to run.with_params('cbda').and_return('abcd') }
end
it { is_expected.to run.with_params('a').and_return('a') }
it { is_expected.to run.with_params('cbda').and_return('abcd') }
end