@Test
	public void channels() {
		Tokenizer t = new Tokenizer(":a.b > c | d > :e");
		checkTokens(t, token(COLON, 0, 1), token_id("a", 1, 2), token(DOT, 2, 3), token_id("b", 3, 4), token(GT, 5, 6),
				token_id("c", 7, 8), token(PIPE, 9, 10), token_id("d", 11, 12), token(GT, 13, 14),
				token(COLON, 15, 16), token_id("e", 16, 17));
	}
Check the tokenizer breaks strings up into correct token streams.

@author Andy Clement
spring-xd-dirt/src/test/java/org/springframework/xd/dirt/stream/dsl/TokenizerTests.java