@Test
public void testSendPingMessageQueue_messagingException() throws Exception {

	Mockito.doThrow( new IOException( "for test" ) ).when( this.messagingMngr ).sendMessageToTheDm( Mockito.any( Message.class  ));
	Mockito.verifyZeroInteractions( this.messagingMngr );
	Assert.assertFalse( this.mngr.pingMessageQueue( "TEST" ));
	Mockito.verify( this.messagingMngr, Mockito.times( 1 )).sendMessageToTheDm( Mockito.any( Message.class ));
}