File upload testing

gistfile1.cs

[When("I choose a photo to upload")]
public void UploadImageFor()
{
    // Where Browser is your current Browser object
    var fileUpload = Browser.FileUpload(x => x.Name == "Photo");
    var assembly = Assembly.GetExecutingAssembly();
    var fileStream = assembly.GetManifestResourceStream(assembly.GetName().Name + ".TestData.image.jpg");

    var fileData = new byte[fileStream.Length];
    fileStream.Read(fileData, 0, fileData.Length);
    var filePath = Path.GetTempFileName();
    var tempFile = File.Create(filePath);
    tempFile.Write(fileData, 0, fileData.Length);
    tempFile.Close();

    fileUpload.Set(filePath);
}