code: public void testStartSignalEvent(){
    String deploymentId1=deployStartSignalTestProcess();
    assertEquals(1,getAllEventSubscriptions().size());
    assertEquals(0,runtimeService.createProcessInstanceQuery().count());
    runtimeService.signalEventReceived("myStartSignal");
    assertEquals(1,runtimeService.createProcessInstanceQuery().count());
    String deploymentId2=deployStartSignalTestProcess();
    runtimeService.signalEventReceived("myStartSignal");
    assertEquals(2,runtimeService.createProcessInstanceQuery().count());
    assertEquals(1,getAllEventSubscriptions().size());
    cleanup(deploymentId1,deploymentId2);
  }
  