Codeception acceptance tests output


I started writing tests for my Yii2-based application and I cannot find any information what are strange numbers on test output what appear mysterious for me (like the ones I marked with red circle):

Any ideas? - Thanks ahead!


It seems the strange numbers and other specific markup are representing text colors only visible on the 'nix console. For Windows it is recommended to turn colors off using “–no-colors” option of the Codeception ‘run’ command.