@Test
	public void testReadLong() throws Exception {
		assertThat(543L, equalTo(tuple.getLong(6)));
		assertThat(543L, equalTo(tuple.getLong("Long")));
	}
This is a port of the FieldSet tests from Spring Batch
spring-xd-tuple/src/test/java/org/springframework/xd/tuple/DefaultTupleTestForBatch.java