public void TestAuthenticate()
        {
            AuthenticationResult authenticationResult = _graphApiClient.AuthenticateAsync().Result;

            Assert.AreNotEqual(null, authenticationResult);
            Assert.AreEqual(false, string.IsNullOrEmpty(authenticationResult.AccessToken));
            System.Diagnostics.Debug.WriteLine($"Received authentication token: {authenticationResult.AccessToken}");
        }