@Test public void splitMessageWithEmptyCollectionPayload() throws Exception { Message<List<String>> message = MessageBuilder.withPayload(Collections.<String>emptyList()).build(); QueueChannel replyChannel = new QueueChannel(); DefaultMessageSplitter splitter = new DefaultMessageSplitter(); splitter.setOutputChannel(replyChannel); splitter.handleMessage(message); Message<?> output = replyChannel.receive(15); assertThat(output, is(nullValue())); }
@Test public void splitMessageWithCollectionPayload() throws Exception { List<String> payload = Arrays.asList(new String[] {"x", "y", "z"}); Message<List<String>> message = MessageBuilder.withPayload(payload).build(); QueueChannel replyChannel = new QueueChannel(); DefaultMessageSplitter splitter = new DefaultMessageSplitter(); splitter.setOutputChannel(replyChannel); splitter.handleMessage(message); List<Message<?>> replies = replyChannel.clear(); assertEquals(3, replies.size()); Message<?> reply1 = replies.get(0); assertNotNull(reply1); assertEquals("x", reply1.getPayload()); Message<?> reply2 = replies.get(1); assertNotNull(reply2); assertEquals("y", reply2.getPayload()); Message<?> reply3 = replies.get(2); assertNotNull(reply3); assertEquals("z", reply3.getPayload()); }