@Override
			public void test(Message<?> message) throws MessagingException {
				File file = (File) message.getPayload();
				assertEquals(sourceDirName + File.separator + "foo1.txt", file.getAbsolutePath());
			}
@author David Turanski
@author Gunnar Hillert
@author Gary Russell
spring-xd-dirt/src/test/java/org/springframework/xd/dirt/stream/FileSourceModuleTests.java