test/tools/javac/T6238612.java

Wed, 14 Nov 2018 10:18:25 -0800

author
diazhou
date
Wed, 14 Nov 2018 10:18:25 -0800
changeset 3762
7909abb85562
parent 554
9d9f26857129
child 2525
2eb010b6cb22
permissions
-rw-r--r--

Added tag jdk8u201-b04 for changeset a7f48b9dfb82

duke@1 1 /*
ohair@554 2 * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
duke@1 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1 4 *
duke@1 5 * This code is free software; you can redistribute it and/or modify it
duke@1 6 * under the terms of the GNU General Public License version 2 only, as
duke@1 7 * published by the Free Software Foundation.
duke@1 8 *
duke@1 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@1 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@1 13 * accompanied this code).
duke@1 14 *
duke@1 15 * You should have received a copy of the GNU General Public License version
duke@1 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@1 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1 18 *
ohair@554 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554 20 * or visit www.oracle.com if you need additional information or have any
ohair@554 21 * questions.
duke@1 22 */
duke@1 23
duke@1 24 /*
duke@1 25 * @test
duke@1 26 * @summary com.sun.tools.util.List.toArray violates Collection spec
duke@1 27 */
duke@1 28
duke@1 29 import com.sun.tools.javac.util.List;
duke@1 30
duke@1 31 public class T6238612 {
duke@1 32 public static void main(String... args) {
duke@1 33 new T6238612().test();
duke@1 34 }
duke@1 35
duke@1 36 boolean error = false;
duke@1 37
duke@1 38 // exercise the List.toArray method for a variety of lists
duke@1 39 void test() {
duke@1 40 test(List.<String>nil());
duke@1 41 test(List.of("a"));
duke@1 42 test(List.of("a", "b", "c"));
duke@1 43 test(List.of("a", "b", "c", "d", "e", "f"));
duke@1 44 if (error)
duke@1 45 throw new Error("test failed");
duke@1 46 }
duke@1 47
duke@1 48 // given a list, exercise the List.toArray method for a variety of arrays
duke@1 49 void test(List<String> list) {
duke@1 50 int n = list.size();
duke@1 51 if (n > 0)
duke@1 52 test(list, new String[0]);
duke@1 53
duke@1 54 if (n > 1)
duke@1 55 test(list, new String[n - 1]);
duke@1 56
duke@1 57 test(list, new String[n]);
duke@1 58 test(list, new String[n + 1]);
duke@1 59 test(list, new String[n + 5]);
duke@1 60 }
duke@1 61
duke@1 62 // test the List.toArray method for a particular list and array
duke@1 63 void test(List<String> list, String[] array) {
duke@1 64 String[] result = list.toArray(array);
duke@1 65
duke@1 66 if (result.length < list.size()) {
duke@1 67 error("returned array is too small; expected: " + list.size() + ", found: " + result.length);
duke@1 68 return;
duke@1 69 }
duke@1 70
duke@1 71 if (list.size() <= array.length && result != array)
duke@1 72 error("new array wrongly created");
duke@1 73
duke@1 74 int i = 0;
duke@1 75 for (String s: list)
duke@1 76 check(result, i++, s);
duke@1 77
duke@1 78 if (i < result.length)
duke@1 79 check(result, i, null);
duke@1 80 }
duke@1 81
duke@1 82 // check a specific element of an array
duke@1 83 void check(String[] array, int i, String expected) {
duke@1 84 if (!equal(array[i], expected))
duke@1 85 error("element " + i + " incorrect; expected: " + str(expected) + ", found: " + str(array[i]));
duke@1 86 }
duke@1 87
duke@1 88 // check if two strings are both null or are equal
duke@1 89 boolean equal(String s1, String s2) {
duke@1 90 return (s1 == null ? s2 == null : s1.equals(s2));
duke@1 91 }
duke@1 92
duke@1 93 String str(String s) {
duke@1 94 return (s == null ? "null" : '"' + s + '"');
duke@1 95 }
duke@1 96
duke@1 97 void error(String message) {
duke@1 98 System.err.println(message);
duke@1 99 error = true;
duke@1 100 }
duke@1 101 }

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