public async void Should_Return_OK() { var wordAsBase64 = Convert.ToBase64String(await File.ReadAllBytesAsync("test.docx")); var inputJson = $@" {{ ""document"":""{wordAsBase64}"", ""data"": {{ ""Company"":""Hololux"", ""Street"":""Europaallee 27d"", ""City"":""Saarbruecken"", ""Items"":[ {{ ""Article"":""4711"", ""Quantity"":""2"", ""Price"":""5"", ""Sum"":""10"" }}, {{ ""Article"":""4712"", ""Quantity"":""1"", ""Price"":8, ""Sum"":8 }} ] }} }}"; var request = new DefaultHttpRequest(new DefaultHttpContext()) { Body = new MemoryStream(Encoding.UTF8.GetBytes(inputJson)) }; var logger = NullLoggerFactory.Instance.CreateLogger("Null Logger"); var response = await ProcessTemplate.Run(request, logger); Assert.IsType <OkObjectResult>(response); var tempPath = Path.GetTempFileName() + ".docx"; File.WriteAllBytes(tempPath, Convert.FromBase64String((response as OkObjectResult).Value.ToString())); _testOutputHelper.WriteLine("Generated Word Document: " + tempPath); }