[TestMethod]
        public void WhenPostingAPersonThenPersonIsStored()
        {
            var request = new HttpRequestMessage();
            request.Method = HttpMethod.Post;
            request.Content = new StringContent("person=Glenn");
            var resource = new HelloResource(peopleToSayHelloTo);
            resource.Post(request);
            Assert.IsTrue(peopleToSayHelloTo.Contains("Glenn"));
        }