92 lines
3.8 KiB
Java
92 lines
3.8 KiB
Java
/*
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* Copyright (c) 2001, 2023, 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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* @bug 4396708
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* @summary Test URL encoder and decoder on a string that contains
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* surrogate pairs.
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* @run junit SurrogatePairs
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*/
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import org.junit.jupiter.params.ParameterizedTest;
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import org.junit.jupiter.params.provider.MethodSource;
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import java.net.URLDecoder;
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import java.net.URLEncoder;
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import java.util.stream.Collectors;
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import static java.nio.charset.StandardCharsets.UTF_8;
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import static org.junit.jupiter.api.Assertions.*;
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/*
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* Surrogate pairs are two character Unicode sequences where the first
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* character lies in the range [d800, dbff] and the second character lies
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* in the range [dc00, dfff]. They are used as an escaping mechanism to add
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* 1M more characters to Unicode.
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*/
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public class SurrogatePairs {
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public static String[][] arguments() {
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return new String[][] {
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{"\uD800\uDC00", "%F0%90%80%80"},
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{"\uD800\uDFFF", "%F0%90%8F%BF"},
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{"\uDBFF\uDC00", "%F4%8F%B0%80"},
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{"\uDBFF\uDFFF", "%F4%8F%BF%BF"},
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{"1\uDBFF\uDC00", "1%F4%8F%B0%80"},
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{"@\uDBFF\uDC00", "%40%F4%8F%B0%80"},
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{"\uDBFF\uDC001", "%F4%8F%B0%801"},
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{"\uDBFF\uDC00@", "%F4%8F%B0%80%40"},
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{"\u0101\uDBFF\uDC00", "%C4%81%F4%8F%B0%80"},
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{"\u0101\u0101\u0101\u0101\u0101\u0101\uDBFF\uDC00\u0101", "%C4%81%C4%81%C4%81%C4%81%C4%81%C4%81%F4%8F%B0%80%C4%81"},
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{"\u0101\u0101\u0101\u0101\u0101\u0101\u0101\uDBFF\uDC00\u0101", "%C4%81%C4%81%C4%81%C4%81%C4%81%C4%81%C4%81%F4%8F%B0%80%C4%81"},
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{"\u0101\u0101\u0101\u0101\u0101\u0101\u0101\u0101\uDBFF\uDC00\u0101", "%C4%81%C4%81%C4%81%C4%81%C4%81%C4%81%C4%81%C4%81%F4%8F%B0%80%C4%81"},
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{"\uDBFF\uDC00\u0101", "%F4%8F%B0%80%C4%81"},
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{"\uDE0A\uD83D", "%3F%3F"},
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{"1\uDE0A\uD83D", "1%3F%3F"},
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{"@\uDE0A\uD83D", "%40%3F%3F"},
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{"1@1\uDE0A\uD800\uDC00 \uD83D", "1%401%3F%F0%90%80%80+%3F"}
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};
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}
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@ParameterizedTest
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@MethodSource("arguments")
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public void test(String str, String correctEncoding) {
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String encoded = URLEncoder.encode(str, UTF_8);
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assertEquals(correctEncoding, encoded, () ->
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"str=%s, expected=%s, actual=%s"
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.formatted(escape(str), escape(correctEncoding), escape(encoded)));
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// Map unmappable characters to '?'
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String cleanStr = new String(str.getBytes(UTF_8), UTF_8);
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String decoded = URLDecoder.decode(encoded, UTF_8);
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assertEquals(cleanStr, decoded, () ->
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"expected=%s, actual=%s".formatted(escape(str), escape(decoded)));
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}
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private static String escape(String s) {
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return s.chars().mapToObj(c -> String.format("\\u%04x", c))
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.collect(Collectors.joining());
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}
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}
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