@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);
 }