Adding a BPMN Parser

[jatz]

We have a unit test where a service task needs to be mocked as it calls an external web service.

To get around this we have added a handler to the ProcessEngineConfiguration as below:

processEngineConfiguration.getBpmnParser().getBpmnParserHandlers().addHandler(new ExternalCheckMockHandler("mock"));
processEngineConfiguration.buildProcessEngine();
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This looks to work fine, except that when we encounter a listener (as shown below). This ends up getting called twice instead of once:

 <serviceTask id="testServiceTask" name="Test Service Task" activiti:expression="#{testService.updateStatus(execution.getProcessBusinessKey())}">
      <extensionElements>
        <activiti:executionListener event="end" expression="#{testService.runListener(execution.getProcessBusinessKey())}"></activiti:executionListener>
      </extensionElements>
    </serviceTask>
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The testService.runListener runs two times instead of once at the end of the service task.

Could someone please guide me on if the way this handler has been added is the correct way to go?

[frederikherema1]

If you want to mock out behaviours, I recommend using an custom org.activiti.engine.impl.bpmn.parser.factory.DefaultActivityBehaviorFactory to acchieve this. An instance of this class can be set into the processEngineConfiguration. Instead of returning REAL service-task, you can return a mocked one OR replace the execution-listeners added by the default DefaultActivityBehaviorFactory and replace them by the listener you like to see called…

OR take a look at http://forums.activiti.org/content/activiti-mock-support we have some experimantal OOTB mock support which uses the approach described above. You can at least use this as a source of inspiration