public async Task Send_WithUrlAndDefaultParameters_ShouldBuildCorrectUrl()
        {
            // Arrange
            var httpClient    = A.Fake <IHttpClient>();
            var url           = "test/itemName/123";
            var defaultParams = new NameValueCollection {
                { "APIKey", "keyvalue" }
            };
            var expectedUrl = "/test/itemName/123?APIKey=keyvalue";

            A.CallTo(
                () =>
                httpClient.SendAsync(
                    A <HttpRequestMessage> .Ignored))
            .Returns(_basicResponse);
            A.CallTo(
                () =>
                httpClient.Client)
            .Returns(_basicClient);
            var requester = new WebRequester(httpClient, TimeSpan.FromMilliseconds(1), defaultParams);

            // Act
            var request = new HttpRequestMessage(HttpMethod.Get, url);
            await requester.SendMessageAsyncWithRetries(request, 0);

            // Assert
            A.CallTo(
                () =>
                httpClient.SendAsync(
                    A <HttpRequestMessage> .That.Matches(req => req.RequestUri.ToString().Equals(expectedUrl)))
                ).MustHaveHappened();
        }