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/*
* @ test
* @ bug 8216140
* @ summary Test reversed BOM ( U + FFFE ) in the middle of a byte buffer
* passes through during decoding with UnicodeDecoder .
* @ run testng TestUnicodeReversedBOM
*/
import java.nio.charset.*;
import java.nio.*;
import java.util.*;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
@Test
public class TestUnicodeReversedBOM {
private static byte [] A_REVERSED_BE =
{(byte )0 x0, (byte )'A' , (byte )0 xff, (byte )0 xfe};
private static byte [] A_REVERSED_LE =
{(byte )'A' , (byte )0 x0, (byte )0 xfe, (byte )0 xff};
private static byte [] BOM_REVERSED_BE =
{(byte )0 xfe, (byte )0 xff, (byte )0 xff, (byte )0 xfe};
private static byte [] BOM_REVERSED_LE =
{(byte )0 xff, (byte )0 xfe, (byte )0 xfe, (byte )0 xff};
@DataProvider
// [(byte[])byte array, (Charset)cs]
public static Object[][] ReversedBOM() {
return new Object[][] {
{A_REVERSED_BE, StandardCharsets.UTF_16},
{A_REVERSED_LE, StandardCharsets.UTF_16},
{A_REVERSED_BE, StandardCharsets.UTF_16BE},
{A_REVERSED_LE, StandardCharsets.UTF_16BE},
{A_REVERSED_BE, StandardCharsets.UTF_16LE},
{A_REVERSED_LE, StandardCharsets.UTF_16LE},
{BOM_REVERSED_BE, StandardCharsets.UTF_16},
{BOM_REVERSED_LE, StandardCharsets.UTF_16},
{BOM_REVERSED_BE, StandardCharsets.UTF_16BE},
{BOM_REVERSED_LE, StandardCharsets.UTF_16BE},
{BOM_REVERSED_BE, StandardCharsets.UTF_16LE},
{BOM_REVERSED_LE, StandardCharsets.UTF_16LE},
};
}
@Test(dataProvider = "ReversedBOM" )
public void testReversedBOM(byte [] ba, Charset cs) throws CharacterCodingException {
cs.newDecoder()
.onMalformedInput(CodingErrorAction.REPORT)
.onUnmappableCharacter(CodingErrorAction.REPORT)
.decode(ByteBuffer.wrap(ba));
}
}
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