1 /* 2 * Copyright (c) 2016, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /** 25 * @test 26 * @bug 8155600 27 * @summary Tests for Arrays.asList() 28 * @run testng AsList 29 */ 30 31 import java.util.Arrays; 32 import java.util.Iterator; 33 import java.util.NoSuchElementException; 34 import java.util.stream.IntStream; 35 36 import org.testng.annotations.Test; 37 import org.testng.annotations.DataProvider; 38 import static org.testng.Assert.assertSame; 39 import static org.testng.Assert.assertTrue; 40 import static org.testng.Assert.assertFalse; 41 import static org.testng.Assert.fail; 42 43 public class AsList { 44 /* 45 * Iterator contract test 46 */ 47 @Test(dataProvider = "Arrays") 48 public void testIterator(Object[] array) { 49 Iterator<Object> itr = Arrays.asList(array).iterator(); 50 for (int i=0; i<array.length; i++) { 51 assertTrue(itr.hasNext()); 52 assertTrue(itr.hasNext()); // must be idempotent 53 assertSame(array[i], itr.next()); 54 try { 55 itr.remove(); 56 } 57 catch (UnsupportedOperationException ex) { 58 continue; 59 } 60 fail("Remove must throw"); 61 } 62 assertFalse(itr.hasNext()); 63 for (int i=0; i<3; i++) { 64 assertFalse(itr.hasNext()); 65 try { 66 itr.next(); 67 } 68 catch (NoSuchElementException ex) { 69 continue; 70 } 71 fail("Next succeed when there's no data left"); 72 } 73 } 74 75 @DataProvider(name = "Arrays", parallel = true) 76 public static Object[][] arrays() { 77 Object[][] arrays = { 78 {new Object[] {}}, 79 {new Object[] {1}}, 80 {new Object[] {1, 2, 3, null, 4}}, 81 {new Object[] {"a", "a", "a", "a"}}, 82 {IntStream.range(0, 100).boxed().toArray()} 83 }; 84 85 return arrays; 86 } 87 }