svoid test_parseBusinessHours() {
  Map<S, L<IntRange>> examples = test_parseBusinessHours_examples();
  testFunctionValues parseBusinessHours(mapToParams(examples));
}

static Map<S, L<IntRange>> test_parseBusinessHours_examples() {
  // end values are one hour or one minute less because the range is inclusive
  ret litorderedmap(
    null, ll(),
    "", ll(),
    " ", ll(),
    "9-12", ll(intRange(9*60, 12*60)),
    "9-13", ll(intRange(9*60, 13*60)),
    "15-18", ll(intRange(15*60, 18*60)),
    "9-10, 16-17", ll(intRange(9*60, 10*60), intRange(16*60, 17*60)),
    "9:30-10:45", ll(intRange(9*60+30, 10*60+45)),
    
    "9-5", ll(intRange(9*60, 17*60)),
  );
}

Began life as a copy of #1028601