public void Setup() { sw = new StringWriter(); dir = FileSystemHelper.ResetTemporaryDirectory(); dira = Path.Combine(dir, "a"); dirb = Path.Combine(dir, "b"); filea = Path.Combine(dira, "a.txt"); fileb = Path.Combine(dirb, "b.txt"); Directory.CreateDirectory(dira); Directory.CreateDirectory(dirb); uab = new TestUpdater(sw, filea, fileb); uba = new TestUpdater(sw, fileb, filea); }