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 31import java.util.Arrays; 32import java.util.Iterator; 33import java.util.NoSuchElementException; 34import java.util.stream.IntStream; 35 36import org.testng.annotations.Test; 37import org.testng.annotations.DataProvider; 38import static org.testng.Assert.assertSame; 39import static org.testng.Assert.assertTrue; 40import static org.testng.Assert.assertFalse; 41import static org.testng.Assert.fail; 42 43public 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 fail("Remove must throw"); 57 } catch (UnsupportedOperationException ex) { 58 // expected 59 } 60 } 61 assertFalse(itr.hasNext()); 62 for (int i = 0; i < 3; i++) { 63 assertFalse(itr.hasNext()); 64 try { 65 itr.next(); 66 fail("Next succeed when there's no data left"); 67 } catch (NoSuchElementException ex) { 68 // expected 69 } 70 } 71 } 72 73 @DataProvider(name = "Arrays") 74 public static Object[][] arrays() { 75 Object[][] arrays = { 76 { new Object[] { } }, 77 { new Object[] { 1 } }, 78 { new Object[] { null } }, 79 { new Object[] { null, 1 } }, 80 { new Object[] { 1, null } }, 81 { new Object[] { null, null } }, 82 { new Object[] { null, 1, 2 } }, 83 { new Object[] { 1, null, 2 } }, 84 { new Object[] { 1, 2, null } }, 85 { new Object[] { null, null, null } }, 86 { new Object[] { 1, 2, 3, null, 4 } }, 87 { new Object[] { "a", "a", "a", "a" } }, 88 { IntStream.range(0, 100).boxed().toArray() } 89 }; 90 91 return arrays; 92 } 93} 94