public async Task WhenBusinessIsPostedViaWebAPI()
        {
            var client   = new HttpClientJson <Business>();
            var url      = new Uri($"{_config["Stack:Subjects:ApiUrl"]}/v1/Businesses/{SutKey}");
            var response = await client.PutAsync(url, new StringContent(JsonConvert.SerializeObject(Sut), Encoding.UTF8, "application/json"));

            Assert.IsTrue(response.IsSuccessStatusCode);
            var result = await response.Content.ReadAsStringAsync();

            Suts.Add(JsonConvert.DeserializeObject <Business>(result));
            Sut    = Suts.FirstOrDefault();
            SutKey = Sut.BusinessKey;
            Assert.IsTrue(SutKey != Guid.Empty);
        }