@Test
public void testGetExecutionMessage() throws Exception {

    SimpleExecutionRunnable simpleExecutionRunnable = new SimpleExecutionRunnable(executionService, outBuffer,
            inBuffer, converter, endExecutionCallback, queueStateIdGenerator, "stam", workerConfigurationService,
            workerManager);
    ExecutionMessage executionMessage = simpleExecutionRunnable.getExecutionMessage();
    Assert.assertNull(executionMessage);
    simpleExecutionRunnable.setExecutionMessage(new ExecutionMessage());
    executionMessage = simpleExecutionRunnable.getExecutionMessage();
    Assert.assertNotNull(executionMessage);
}