LatinCharReplacementTWTest.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 */

/* @test
   @bug 4658679 4879644
   @summary Checks replacement logic within EUC-TW decoder
*/

/*
 * Tests goodness of fix for bugID 4658679: EUC-TW decoder should
 * perform replacement when it encounters latin chars outside the
 * normal US-ASCII range. For example: Isolated occurrences of
 * French accented chars. See bugID: 4658679.
 */
import java.io.*;
public class LatinCharReplacementTWTest {
    public static void  main(String[] args) throws Exception {
        final String bugID = "4658679";
        // Attempt to decode
        byte[] input = { (byte)0xa1,
                         (byte)0xf0,
                         (byte)'r',
                         (byte)'e',
                         (byte)'s',
                         (byte)0xe9,  // illegal within EUC-TW
                         (byte)'r',
                         (byte)'v',
                         (byte)0xe9,  // illegal within EUC-TW
                         (byte)'s',
                         (byte)0xa2,
                         (byte)0xf8
                       };

        char[] expected = { (char) 0xa7,
                         (char) 'r',
                         (char) 'e',
                         (char) 's',
                         (char) 0xFFFD,  // replacement for accented lowercase e
                         (char) 'r',
                         (char) 'v',
                         (char) 0xFFFD,  // replacement for accented lowercase e
                         (char) 's',
                         (char) 0xb0 };

        ByteArrayInputStream bais = new ByteArrayInputStream(input);
        InputStreamReader isr = new InputStreamReader(bais, "x-EUC-TW");

        char[] decoded = new char[128];
        int numChars = isr.read(decoded);

        if (numChars != expected.length) {
            throw new Exception("failure of test for bug " + bugID);
        }

        for (int i = 0 ; i < numChars; i++) {
           if (decoded[i] != expected[i])
                throw new Exception("failure of test for bug " + bugID);
        }
    }
}