There are two reasons you may want to develop your own plugins: adding custom functions to mScript or extend TestOptimal functionality, for example to test other types of applications.

Add custom function to mScript:

1. create a java class by inheriting from an existing plugin which you will be using to run your model: com.webmbt.plugin.SeleniumPlugin or com.webmbt.HtmlunitPlugin.
2. add your function to the new plugin java class and add the following like right above each of the functions:

  @MSCRIPT_METHOD

1. all functions must have string parameters, but can return String, String[], int or boolean.
2. compile the java class, copy the .class file or .jar file to /build/ folder.
3. define the plugin in Help/Config
4. restart TestOptimal server.

Create a new plugin (to extend TestOptimal functionality):

1. create a java class by inheriting from com.webmbt.PluginAncestor.
2. implement a few methods required by PluginAncestor class.
3. create your own methods you need to drive your application/process.
4. compile and deploy the java class
5. define the plugin in Help/Config
6. restart TestOptimal server.