public void ValidImageOption_Succeeds()
{
for (var i = 0; i < 100; i++)
{
var captcha = new Captcha(5);
var data = captcha.GetFrontEndData();
Assert.IsTrue(
captcha.ValidateAnswer(data.Values.FirstOrDefault(v => v == captcha.ValidImageOption.Value)));
}
}
public void GeneratedImageOptions_DuplicateFree()
{
for (var i = 0; i < 100; i++)
{
var captcha = new Captcha(10);
var optionValues = new List<string>();
foreach (var option in captcha.PossibleImageOptions)
{
Assert.IsFalse(optionValues.Contains(option.Key), string.Format("Duplicate option found: {0}", option.Key));
optionValues.Add(option.Key);
}
}
}
public void InvalidImageOptions_Fail()
{
for (var i = 0; i < 100; i++)
{
var captcha = new Captcha(5);
var data = captcha.GetFrontEndData();
foreach (var option in data.Values.Where(option => option != captcha.ValidImageOption.Value))
{
Assert.IsFalse(captcha.ValidateAnswer(option));
}
}
}
public JsonResult Start(int numberOfImages)
{
var captcha = new Captcha(numberOfImages);
Session[SessionKey] = captcha;
var frontEndData = captcha.GetFrontEndData();
// Client side library requires lowercase property names
return Json(new {
values = frontEndData.Values,
imageName = frontEndData.ImageName,
imageFieldName = frontEndData.ImageFieldName,
audioFieldName = frontEndData.AudioFieldName
}, JsonRequestBehavior.AllowGet);
}
public void ProcessRequest(HttpContext context)
{
int numberOfImages = int.Parse(context.Request.RawUrl.Split('/')[3].Split('?')[0].ToString());
var captcha = new Captcha(numberOfImages);
context.Session[SessionKey] = captcha;
var frontEndData = captcha.GetFrontEndData();
Json json = new Json()
{
values = frontEndData.Values,
imageName = frontEndData.ImageName,
imageFieldName = frontEndData.ImageFieldName,
audioFieldName = frontEndData.AudioFieldName
};
context.Response.ContentType = "application/json; charset=utf-8";
context.Response.Write(JsonConvert.SerializeObject(json));
}
private static void GetImageSucceeds(bool isRetina)
{
var captcha = new Captcha(10);
var options = captcha.PossibleImageOptions.ToList();
for (var i = 0; i < options.Count; i++)
{
var bytes = captcha.GetImage(i, isRetina);
Assert.IsTrue(bytes != null && bytes.Length > 0);
}
}
private static void GetAudioSucceeds(string audioType)
{
var captcha = new Captcha(5);
var bytes = captcha.GetAudio(audioType);
Assert.IsTrue(bytes != null && bytes.Length > 0);
}
