/*

 * All Sigmah code is released under the GNU General Public License v3

 * See COPYRIGHT.txt and LICENSE.txt.

 */



package org.sigmah.test;



import java.util.Collection;

import java.util.Comparator;

import java.util.Iterator;



public class AssertUtils {



    public static <T> void assertSorted(String name, Collection<T> collection,

                                        Comparator<T> comparator) {

        if (collection.size() <= 1) {

            return;

        }



        Iterator<T> it = collection.iterator();

        T last = it.next();



        while (it.hasNext()) {

            T next = it.next();

            if (comparator.compare(last, next) > 0) {

                throw new AssertionError("The collection '" + name + "' is not sorted, " +

                        last.toString() + " > " + next.toString());

            }

            last = next;

        }

    }



}