How to compare two Streams in Java 8

Question

What would be a good way to compare two Stream instances in Java 8 and find out whether they have the same elements, specifically for purposes of unit testing?<

Answer 1

public static boolean equalStreams(Stream...streams) {
    List>is = Arrays.stream(streams).map(Stream::iterator).collect(Collectors.toList());
    while(is.stream().allMatch(Iterator::hasNext))
        if(is.stream().map(Iterator::next).distinct().limit(2).count()>1) return false;
    return is.stream().noneMatch(Iterator::hasNext);
}