Grails code example: Integration testing quartz job

Here's a quick snippet to use to integration test a quartz job.
I couldn't find a clear example after a quick Google so hopefully this is useful.
There's a good chance that there's a better auto-magical way to get the job injected but I haven't poked through the testing code to work it out :)

package au.com.refactor

class TempCleanerJobTests extends GrailsUnitTestCase {

  def tempCleanerJob
  def grailsApplication

  protected void setUp() {
    super.setUp()
    tempCleanerJob = grailsApplication.mainContext.getBean(TempCleanerJob)
  }

  protected void tearDown() {
    super.tearDown()
  }

  void testCleanNothing() {
    tempCleanerJob.execute()
  }

}