public async Task Insert_returns_expected_item_async()
        {
            var handler = new Mock<HttpMessageHandler>();

            handler.Protected()
                .Setup<Task<HttpResponseMessage>>("SendAsync", ItExpr.IsAny<HttpRequestMessage>(), ItExpr.IsAny<CancellationToken>())
                .Returns(Task.FromResult(new HttpResponseMessage(HttpStatusCode.OK) { Content = new StringContent("{\"ID\": 1}", Encoding.UTF8, "application/json") }));

            var proxy = new HttpServiceProxyStub(new HttpClient(handler.Object));
            var customer = await proxy.InsertAsync(new Customer());

            customer.ID.ShouldBe(1);
        }
        public async Task Insert_throws_UnsupportedMediaTypeException_when_bad_formatter_is_supplied_async()
        {
            var handler = new Mock<HttpMessageHandler>();

            handler.Protected()
                .Setup<Task<HttpResponseMessage>>("SendAsync", ItExpr.IsAny<HttpRequestMessage>(), ItExpr.IsAny<CancellationToken>())
                .Returns(Task.FromResult(new HttpResponseMessage(HttpStatusCode.OK) { Content = new StringContent("{\"ID\": 1}", Encoding.UTF8, "application/json") }));

            var proxy = new HttpServiceProxyStub(new HttpClient(handler.Object)) { Formatter = new XmlMediaTypeFormatter() };

            await proxy.InsertAsync(new Customer());
            proxy.OnFormatServerErrorWasInvoked.ShouldBe(true);
        }
        public async Task Insert_throws_ServiceException_when_server_status_code_is_BAD_REQUEST_Async()
        {
            var handler = new Mock<HttpMessageHandler>();

            handler.Protected()
                .Setup<Task<HttpResponseMessage>>("SendAsync", ItExpr.IsAny<HttpRequestMessage>(), ItExpr.IsAny<CancellationToken>())
                .Returns(Task.FromResult(new HttpResponseMessage(HttpStatusCode.BadRequest)
                {
                    Content = new StringContent("some known error occurred and was handled", Encoding.UTF8, "application/json")
                }));

            var proxy = new HttpServiceProxyStub(new HttpClient(handler.Object));

            await proxy.InsertAsync(new Customer());
            proxy.OnFormatServerErrorWasInvoked.ShouldBe(true);
        }
        public async Task Insert_throws_NotImplementedException_when_server_status_code_is_NOT_IMPLEMENTED_async()
        {
            var handler = new Mock<HttpMessageHandler>();

            handler.Protected()
                .Setup<Task<HttpResponseMessage>>("SendAsync", ItExpr.IsAny<HttpRequestMessage>(), ItExpr.IsAny<CancellationToken>())
                .Returns(Task.FromResult(new HttpResponseMessage(HttpStatusCode.NotImplemented)
                {
                    Content = new StringContent("Method not implemented", Encoding.UTF8, "application/json")
                }));

            var proxy = new HttpServiceProxyStub(new HttpClient(handler.Object));

            await proxy.InsertAsync(new Customer());
            proxy.OnFormatServerErrorWasInvoked.ShouldBe(true);
        }
        public async Task Insert_invokes_expected_virtual_methods_async()
        {
            var handler = new Mock<HttpMessageHandler>();

            handler.Protected()
                .Setup<Task<HttpResponseMessage>>("SendAsync", ItExpr.IsAny<HttpRequestMessage>(), ItExpr.IsAny<CancellationToken>())
                .Returns(Task.FromResult(new HttpResponseMessage(HttpStatusCode.OK) { Content = new StringContent("{\"ID\": 1}", Encoding.UTF8, "application/json") }));

            var proxy = new HttpServiceProxyStub(new HttpClient(handler.Object));
            await proxy.InsertAsync(new Customer());

            proxy.BuildConfiguredClientWasInvoked.ShouldBe(true);
            proxy.GetMediaTypeFormatterWasInvoked.ShouldBe(true);
            proxy.OnParseResponseWasInvoked.ShouldBe(true);
        }
        public async Task Insert_invokes_an_HTTP_POST_against_the_correct_uri_async()
        {
            var handler = new Mock<HttpMessageHandler>();

            handler.Protected()
                .Setup<Task<HttpResponseMessage>>("SendAsync", ItExpr.IsAny<HttpRequestMessage>(), ItExpr.IsAny<CancellationToken>())
                .Returns(Task.FromResult(new HttpResponseMessage(HttpStatusCode.OK) { Content = new StringContent("{\"ID\": 1}", Encoding.UTF8, "application/json") }))
                .Callback<HttpRequestMessage, CancellationToken>((r, c) =>
                {
                    r.RequestUri.AbsoluteUri.ShouldBe("http://api/customers");
                    Assert.AreEqual(HttpMethod.Post, r.Method);
                });

            var proxy = new HttpServiceProxyStub(new HttpClient(handler.Object));
            await proxy.InsertAsync(new Customer());
        }