103 lines
3.2 KiB
Java
103 lines
3.2 KiB
Java
/*
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* Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @summary com.sun.tools.util.List.toArray violates Collection spec
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* @modules jdk.compiler/com.sun.tools.javac.util
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*/
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import com.sun.tools.javac.util.List;
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public class T6238612 {
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public static void main(String... args) {
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new T6238612().test();
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}
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boolean error = false;
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// exercise the List.toArray method for a variety of lists
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void test() {
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test(List.<String>nil());
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test(List.of("a"));
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test(List.of("a", "b", "c"));
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test(List.of("a", "b", "c", "d", "e", "f"));
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if (error)
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throw new Error("test failed");
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}
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// given a list, exercise the List.toArray method for a variety of arrays
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void test(List<String> list) {
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int n = list.size();
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if (n > 0)
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test(list, new String[0]);
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if (n > 1)
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test(list, new String[n - 1]);
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test(list, new String[n]);
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test(list, new String[n + 1]);
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test(list, new String[n + 5]);
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}
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// test the List.toArray method for a particular list and array
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void test(List<String> list, String[] array) {
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String[] result = list.toArray(array);
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if (result.length < list.size()) {
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error("returned array is too small; expected: " + list.size() + ", found: " + result.length);
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return;
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}
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if (list.size() <= array.length && result != array)
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error("new array wrongly created");
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int i = 0;
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for (String s: list)
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check(result, i++, s);
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if (i < result.length)
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check(result, i, null);
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}
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// check a specific element of an array
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void check(String[] array, int i, String expected) {
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if (!equal(array[i], expected))
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error("element " + i + " incorrect; expected: " + str(expected) + ", found: " + str(array[i]));
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}
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// check if two strings are both null or are equal
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boolean equal(String s1, String s2) {
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return (s1 == null ? s2 == null : s1.equals(s2));
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}
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String str(String s) {
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return (s == null ? "null" : '"' + s + '"');
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}
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void error(String message) {
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System.err.println(message);
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error = true;
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}
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}
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