public void TestRemoveFileFromFolder() { Folder fold5 = _folder.GetFolderByID(5); var newFile = new File { ID = 2, Content = "var x = 0;", Name = "init.js", Extension = ".js", Type = "javascript", FolderID = 2 }; _folder.AddFileToFolder(5, newFile); //Act _folder.RemoveFileFromFolder(5, newFile); var result = _folder.GetAllFilesById(5); //Assert Assert.AreEqual(result.Count, 0); }