@Test public void forEachTrimmedToken() { String tokens = "1 ,2 "; final MutableList<Integer> list = Lists.mutable.of(); StringIterate.forEachTrimmedToken( tokens, ",", new CheckedProcedure<String>() { @Override public void safeValue(String string) { list.add(Integer.valueOf(string)); } }); Verify.assertSize(2, list); Verify.assertContains(1, list); Verify.assertContains(2, list); }