[Training Video

TestService s =  new TestService(log,context,testRunner)
s.xyz()

class TestService{
	def log
	def context
	def testRunner

	public TestService(log,context,testRunner){
		this.log=log
		this.context=context
		this.testRunner=testRunner
	}

	public void xyz(){
		log.info "hello"
	}
}

Run result:

Tue Oct 06 20:54:29 CST 2015:INFO:hello