public void When_receive_ok_response_with_empty_content_from_post_then_return_null(string query)
        {
            this._httpMessageHandler.Protected()
            .Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
            .Returns(Task.FromResult(new HttpResponseMessage
            {
                StatusCode = System.Net.HttpStatusCode.OK,
                Content    = new StringContent(string.Empty)
            }));

            this._httpClient = new HttpClient(this._httpMessageHandler.Object);
            IIndexSearch indexSearchOKNoContent = new IndexSearch(null, this._numberOfResults, this._httpClient, "https://localhost:5000", _organizationId);

            indexSearchOKNoContent.Search(query).Should().BeEquivalentTo((SearchResult)null);
        }
        public void When_receive_not_found_response_from_post_then_throws_exception(string query)
        {
            this._httpMessageHandler.Protected()
            .Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
            .Returns(Task.FromResult(new HttpResponseMessage
            {
                StatusCode = System.Net.HttpStatusCode.NotFound,
                Content    = this.GetStringContent()
            }));

            this._httpClient = new HttpClient(this._httpMessageHandler.Object);
            IIndexSearch indexSearchNotFound = new IndexSearch(null, this._numberOfResults, this._httpClient, "https://localhost:5000", _organizationId);

            Assert.Throws <HttpRequestException>(() => indexSearchNotFound.Search(query));
        }