1 /* 2 * Copyright 2003 Sun Microsystems, Inc. All Rights Reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 20 * CA 95054 USA or visit www.sun.com if you need additional information or 21 * have any questions. 22 */ 23 24 /* 25 * @test 26 * @bug 4822887 27 * @summary Basic test for Collections.addAll 28 * @author Josh Bloch 29 * 30 * @compile -source 1.5 AddAll.java 31 * @run main AddAll 32 */ 33 34 import java.util.*; 35 36 public class AddAll { 37 final static int N = 100; 38 public static void main(String args[]) { 39 test(new ArrayList<Integer>()); 40 test(new LinkedList<Integer>()); 41 test(new HashSet<Integer>()); 42 test(new LinkedHashSet<Integer>()); 43 } 44 45 private static Random rnd = new Random(); 46 47 static void test(Collection<Integer> c) { 48 int x = 0; 49 for (int i = 0; i < N; i++) { 50 int rangeLen = rnd.nextInt(10); 51 if (Collections.addAll(c, range(x, x + rangeLen)) != 52 (rangeLen != 0)) 53 throw new RuntimeException("" + rangeLen); 54 x += rangeLen; 55 } 56 if (c instanceof List) { 57 if (!c.equals(Arrays.asList(range(0, x)))) 58 throw new RuntimeException(x +": "+c); 59 } else { 60 if (!c.equals(new HashSet<Integer>(Arrays.asList(range(0, x))))) 61 throw new RuntimeException(x +": "+c); 62 } 63 } 64 65 private static Integer[] range(int from, int to) { 66 Integer[] result = new Integer[to - from]; 67 for (int i = from, j=0; i < to; i++, j++) 68 result[j] = new Integer(i); 69 return result; 70 } 71 }