pfhwyigou/vendor/codeception/base/tests/cli/GenerateCestCept.php

<?php
$I = new CliGuy\GeneratorSteps($scenario);
$I->wantTo('generate sample Cest');
$I->amInPath('tests/data/sandbox');
$I->executeCommand('generate:cest dummy DummyClass');
$I->seeFileWithGeneratedClass('DummyClass');