public void testDeleteDeploymentNullDeploymentId() {
   try {
     repositoryService.deleteDeployment(null);
     fail("ActivitiException expected");
   } catch (ActivitiIllegalArgumentException ae) {
     assertTextPresent("deploymentId is null", ae.getMessage());
   }
 }
  public void testGetResourceAsStreamNullArguments() {
    try {
      repositoryService.getResourceAsStream(null, "resource");
      fail("ActivitiException expected");
    } catch (ActivitiIllegalArgumentException ae) {
      assertTextPresent("deploymentId is null", ae.getMessage());
    }

    try {
      repositoryService.getResourceAsStream("deployment", null);
      fail("ActivitiException expected");
    } catch (ActivitiIllegalArgumentException ae) {
      assertTextPresent("resourceName is null", ae.getMessage());
    }
  }