ruby - Raising an exception from a third party API -

context 'given invalid build name'   let(:config_file) { ('login.yml') }   let(:client) { double(jenkinsapi::client) }   let(:logger_mock) { double("logger").as_null_object }   let(:exception) { double(jenkinsapi::exceptions::notfound) }    before     allow(yaml)       .to receive(:load_file)       .with('login.yml')       .and_return(config_file)     allow(jenkinsapi::client)       .to receive(:new).with(config_file).and_return(client)      allow(client).to receive_message_chain(:job, :status) {'build'}     allow(client.job).to receive(jenkinsapi::exceptions::notfound).and_return(exception)   end    'should throw notfound error'     expect{client.job.status('bad_build')}.to raise_error   end 

for testing, want jenkins api raise jenkinsapi::exceptions::notfound. don't want ping actual server test, use mocking raise exception. have tried numerous variations , unable call it.

any appreciated.

failure/error: allow(client.job).to     receive(jenkinsapi::exceptions::notfound).and_return(exception)  nomethoderror:    undefined method `to_sym' jenkinsapi::exceptions::notfound:class    did mean?  to_s 

this current error receiving. have been getting errors not raising exception.