let(:project){double('project',to_reference: 'namespace1/project1')}let(:issue){described_class.new('EXT-1234',project)}describe'modules'dosubject{described_class}it{is_expected.toinclude_module(Referable)}enddescribe'#to_reference'doit'returns a String reference to the object'doexpect(issue.to_reference).toeqissue.idendenddescribe'#title'doit'returns a title'doexpect(issue.title).toeq"External Issue #{issue}"endendend