jdk8-mips64-public/langtools: test/tools/javac/T6238612.java@7909abb85562

     1 /*

     2  * Copyright (c) 2005, 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  */

    24 /*

    25  * @test

    26  * @summary com.sun.tools.util.List.toArray violates Collection spec

    27  */

    29 import com.sun.tools.javac.util.List;

    31 public class T6238612 {

    32     public static void main(String... args) {

    33         new T6238612().test();

    34     }

    36     boolean error = false;

    38     // exercise the List.toArray method for a variety of lists

    39     void test() {

    40         test(List.<String>nil());

    41         test(List.of("a"));

    42         test(List.of("a", "b", "c"));

    43         test(List.of("a", "b", "c", "d", "e", "f"));

    44         if (error)

    45             throw new Error("test failed");

    46     }

    48     // given a list, exercise the List.toArray method for a variety of arrays

    49     void test(List<String> list) {

    50         int n = list.size();

    51         if (n > 0)

    52             test(list, new String[0]);

    54         if (n > 1)

    55             test(list, new String[n - 1]);

    57         test(list, new String[n]);

    58         test(list, new String[n + 1]);

    59         test(list, new String[n + 5]);

    60     }

    62     // test the List.toArray method for a particular list and array

    63     void test(List<String> list, String[] array) {

    64         String[] result = list.toArray(array);

    66         if (result.length < list.size()) {

    67             error("returned array is too small; expected: " + list.size() + ", found: " + result.length);

    68             return;

    69         }

    71         if (list.size() <= array.length && result != array)

    72             error("new array wrongly created");

    74         int i = 0;

    75         for (String s: list)

    76             check(result, i++, s);

    78         if (i < result.length)

    79             check(result, i, null);

    80     }

    82     // check a specific element of an array

    83     void check(String[] array, int i, String expected) {

    84         if (!equal(array[i], expected))

    85                 error("element " + i + " incorrect; expected: " + str(expected) + ", found: " + str(array[i]));

    86     }

    88     // check if two strings are both null or are equal

    89     boolean equal(String s1, String s2) {

    90         return (s1 == null ? s2 == null : s1.equals(s2));

    91     }

    93     String str(String s) {

    94         return (s == null ? "null" : '"' + s + '"');

    95     }

    97     void error(String message) {

    98         System.err.println(message);

    99         error = true;

   100     }

   101 }

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