public async Task DefaultTest() { var service = new UserStorageService(); await service.SaveUser("3202348", "432vcsvds", ""); await service.SaveUser("3234234", "", ""); await service.SaveUser("322332", "rdfsdfwf", ""); Assert.AreNotEqual(await service.GetDefaultUser(), null, "ĬÈÏÓû§²»´æÔÚ"); await service.SetDefaultUser("322332"); Assert.AreEqual((await service.GetDefaultUser()).Username, "322332", "Óû§Ä¬ÈÏÉèÖÃʧ°Ü"); var users = await service.GetUsers(); foreach (var item in users) { await service.DeleteUser(item.Username); } }