Vidar’s Musings

When doing web testing using Watin, it is not trivial to be able to do a POST request to the server. However, with the help this article on microsoft.com, I was able to figure out how. I ended up with writing this class:

public class Navigator
{
    private IE _ie;

    public Navigator(IE ie) { _ie = ie; }

    public void Post(Uri baseUri, params KeyValuePair<string, object>[] postData)     {         object flags = null;         object targetFrame = null;         object headers = "Content-Type: application/x-www-form-urlencoded" + Convert.ToChar(10) + Convert.ToChar(13);         object postDataBytes = MakeByteStreamOf(postData);         object resourceLocator = baseUri.ToString();         IWebBrowser2 browser = (IWebBrowser2)_ie.InternetExplorer;         browser.Navigate2(ref resourceLocator, ref flags, ref targetFrame, ref postDataBytes, ref headers);         _ie.WaitForComplete();     }

    private static byte[] MakeByteStreamOf(KeyValuePair<string, object>[] postData)     {         StringBuilder sb = new StringBuilder(); if (postData.Length > 0) {         foreach (KeyValuePair<string, object> postDataEntry in postData)         {             sb.Append(postDataEntry.Key).Append('=').Append(postDataEntry.Value).Append('&');         }         sb.Remove(sb.Length - 1, 1); }         return ASCIIEncoding.ASCII.GetBytes(sb.ToString());     } } For example, I can use it like so:

using (IE ie = new IE())

{

    Navigator navigator = new Navigator(ie);

    navigator.Post(new Uri("http://www.foo.com/"), new KeyValuePair<string, object>("p", 1));

    Assert.AreEqual("OK", ie.Text);

}

This entry was posted on Monday, July 7th, 2008 at 7:25 pm and is filed under Software development, Software testing. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.