For simple testing of the SES you need JMeter. It is a small program that allows you to send (SOAP) requests. You can download it here: http://jmeter.apache.org
Load JMX testplan
Download the JMeter testplan provided here. Load the included JMX file into JMeter. It should now look like the this.
In order to setup the tesplan you have to adjust some parameters in the "Configuration" element.
Start the Consumer application
Now you need to start your local consumer. You can use the SimpleWSNConsumer program (zip - tar.gz). This is a small java based program that listens on a port on your machine and writes all received requests into a text window.
Run JMeter testplan
Start the testplan by pressing "CTRL + R" or via the "Run" menu. The responses of all requests will be summarized in the "Responses" element. All matching notifications will be forwarded to your SimpleWSNConsumer program.