public async Task GetUserAccessTokenTest()
        {
            var response = new Dictionary <string, string>
            {
                { "access_token", "any" }
            };

            var restApiRepositoryMock = new Mock <IRestApiRepository>();

            restApiRepositoryMock.Setup(x => x.GetRequestAsync <Dictionary <string, string> >(It.IsAny <string>(), null,
                                                                                              It.IsAny <Dictionary <string, string> >(), It.IsAny <CancellationToken>()))
            .ReturnsAsync(response);
            var facebookProvider = new FacebookProvider(new AzureTableProvider(Settings.StorageAccountConnectionString))
            {
                Client = restApiRepositoryMock.Object
            };
            var accessToken = await facebookProvider.GetUserAccessToken(string.Empty, string.Empty);

            Assert.AreEqual(accessToken, "any");
        }