@Test
public void testSequence_withMap3_fails() {

  replay();
  Parser<Integer> parser = Parsers.sequence(isChar('a'), isChar('b'),isChar('c'), map3);
  assertFailure(mode, parser, "xbc", 1, 1);
  assertFailure(mode, parser, "axc", 1, 2);
  assertFailure(mode, parser, "abx", 1, 3);
}