public async Task TestApiRunNoConfig()
        {
            OutlookApi outlookApi = new OutlookApi(null);
            IEnumerable <(string, bool)> results = await outlookApi.RunAsync(graphClient).ToListAsync();

            Assert.AreEqual(3, results.Count());
        }
        public async Task TestApiRun1()
        {
            Dictionary <string, string> config = new Dictionary <string, string>
            {
                { "API:NumberOfMethodCall", "1" }
            };

            var configuration = new ConfigurationBuilder()
                                .AddInMemoryCollection(config)
                                .Build();

            OutlookApi outlookApi = new OutlookApi(null, configuration);
            IEnumerable <(string, bool)> results = await outlookApi.RunAsync(graphClient).ToListAsync();

            Assert.AreEqual(1, results.Count());
        }