This is a quick incomplete set of instructions. More details to follow when Arnaud gets a chance

Here is a quick tutorial to run those tests :

Download canoo webtest from : http://webtest.canoo.com/
Install Canoo in : C:/Program Files/Canoo/ (otherwise you will have to update properties\local.properties)
CAS demo .war file should be deployed and available on https://localhost:8443/cas/
the proxyCallBackTest application should be deployed twice (with different instances) on https://localhost/proxyCallBackTest1/ and https://localhost/proxyCallBackTest2/ (otherwise update properties\canoo.properties

Now launch build.xml file with the target all. Tests should pass