public async Task LogInTaskAsyncTask()
{
// テストデータ作成
var user = await NCMBUser.LogInTaskAsync("tarou", "tarou");
// 登録成功の確認
Assert.AreEqual("dummySessionToken", NCMBUser._getCurrentSessionToken());
Assert.AreEqual("tarou", user.UserName);
Assert.AreSame(user, NCMBUser.CurrentUser);
Assert.True(NCMBTestSettings.CallbackFlag);
}