Premium EpisodesS5 PremiumTesting Episode #399: StringIO Test Fake Avdi Grimm April 7, 2016 0 Comments This page is just for members. Sign in or subscribe to gain access! Username Password * Remember Me Forgot Password Related CategoriesPremium Episodes, S5 Premium, TestingTagsEverything is mocked, Input - Output, mock objects, stdlib, strings, test doubles, text