public void SetUp() { var mockConsoleTools = new Mock <IConsoleTools>(); mockConsoleTools.Setup(c => c.GetStr(It.IsAny <string>())).Returns("File Does not exist, so we need some duff text here to stop it hanging!"); var sut = new PuzzleInput(new CookieRequestor(new FileHandler(new FileSystem()), mockConsoleTools.Object)); _returns = sut.GetPuzzleInputAsArray("https://adventofcode.com/2020/day/1/input"); }