duke@1: /*
duke@1:  * Copyright 2005 Sun Microsystems, Inc.  All Rights Reserved.
duke@1:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1:  *
duke@1:  * This code is free software; you can redistribute it and/or modify it
duke@1:  * under the terms of the GNU General Public License version 2 only, as
duke@1:  * published by the Free Software Foundation.
duke@1:  *
duke@1:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@1:  * version 2 for more details (a copy is included in the LICENSE file that
duke@1:  * accompanied this code).
duke@1:  *
duke@1:  * You should have received a copy of the GNU General Public License version
duke@1:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@1:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1:  *
duke@1:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@1:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@1:  * have any questions.
duke@1:  */
duke@1: 
duke@1: /*
duke@1:  * @test
duke@1:  * @summary com.sun.tools.util.List.toArray violates Collection spec
duke@1:  */
duke@1: 
duke@1: import com.sun.tools.javac.util.List;
duke@1: 
duke@1: public class T6238612 {
duke@1:     public static void main(String... args) {
duke@1:         new T6238612().test();
duke@1:     }
duke@1: 
duke@1:     boolean error = false;
duke@1: 
duke@1:     // exercise the List.toArray method for a variety of lists
duke@1:     void test() {
duke@1:         test(List.<String>nil());
duke@1:         test(List.of("a"));
duke@1:         test(List.of("a", "b", "c"));
duke@1:         test(List.of("a", "b", "c", "d", "e", "f"));
duke@1:         if (error)
duke@1:             throw new Error("test failed");
duke@1:     }
duke@1: 
duke@1:     // given a list, exercise the List.toArray method for a variety of arrays
duke@1:     void test(List<String> list) {
duke@1:         int n = list.size();
duke@1:         if (n > 0)
duke@1:             test(list, new String[0]);
duke@1: 
duke@1:         if (n > 1)
duke@1:             test(list, new String[n - 1]);
duke@1: 
duke@1:         test(list, new String[n]);
duke@1:         test(list, new String[n + 1]);
duke@1:         test(list, new String[n + 5]);
duke@1:     }
duke@1: 
duke@1:     // test the List.toArray method for a particular list and array
duke@1:     void test(List<String> list, String[] array) {
duke@1:         String[] result = list.toArray(array);
duke@1: 
duke@1:         if (result.length < list.size()) {
duke@1:             error("returned array is too small; expected: " + list.size() + ", found: " + result.length);
duke@1:             return;
duke@1:         }
duke@1: 
duke@1:         if (list.size() <= array.length && result != array)
duke@1:             error("new array wrongly created");
duke@1: 
duke@1:         int i = 0;
duke@1:         for (String s: list)
duke@1:             check(result, i++, s);
duke@1: 
duke@1:         if (i < result.length)
duke@1:             check(result, i, null);
duke@1:     }
duke@1: 
duke@1:     // check a specific element of an array
duke@1:     void check(String[] array, int i, String expected) {
duke@1:         if (!equal(array[i], expected))
duke@1:                 error("element " + i + " incorrect; expected: " + str(expected) + ", found: " + str(array[i]));
duke@1:     }
duke@1: 
duke@1:     // check if two strings are both null or are equal
duke@1:     boolean equal(String s1, String s2) {
duke@1:         return (s1 == null ? s2 == null : s1.equals(s2));
duke@1:     }
duke@1: 
duke@1:     String str(String s) {
duke@1:         return (s == null ? "null" : '"' + s + '"');
duke@1:     }
duke@1: 
duke@1:     void error(String message) {
duke@1:         System.err.println(message);
duke@1:         error = true;
duke@1:     }
duke@1: }