Convenience method to create a somewhat unique site id for testing. Useful
in tests that need to create a site to run tests upon.
A string suitable for using as a site id.
Convenience method to get a service bean from the Sakai component manager.
Parameters: beanId - The id of the service The service, or null if the ID is not registered
Returns a dynamic proxy for a service interface. Useful for testing with
customized service implementations without needing to write custom stubs.
Parameters: clazz - The service interface class Parameters: handler - The invocation handler that defines how the dynamic proxy should behave The dynamic proxy to use as a collaborator