Examples of java.nio.charset.spi.CharsetProvider

java.nio.charset.spi.CharsetProvider
The service provider class for character sets.

    }
    
    //provide better code coverage for the generic charset UTF32
    public void TestCharsetUTF32() {
        CoderResult result = CoderResult.UNDERFLOW;
        CharsetProvider provider = new CharsetProviderICU();
        Charset cs = provider.charsetForName("UTF-32");        
        CharsetDecoder decoder = cs.newDecoder();
        CharsetEncoder encoder = cs.newEncoder();
        
        //start of decoding code coverage
        char us_array[] = {

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    }
    
    //this method provides better code coverage decoding UTF32 LE/BE
    public void TestDecodeUTF32LEBE() {
        CoderResult result = CoderResult.UNDERFLOW;
        CharsetProvider provider = new CharsetProviderICU();       
        CharsetDecoder decoder;
        CharBuffer us = CharBuffer.allocate(0x10);
        ByteBuffer bs = ByteBuffer.allocate(0x10);
        
        //decode UTF32LE
        decoder = provider.charsetForName("UTF-32LE").newDecoder();
        //test overflow buffer
        bs.put((byte)0x41); bs.put((byte)0xFF); bs.put((byte)0x01); bs.put((byte)0x00);
        us.put((char)0x0000);
        
        us.limit(us.position());
        us.position(0);
        bs.limit(bs.position());
        bs.position(0);
        
        try {
            smBufDecode(decoder, "UTF-32LE", bs, us, true, false);
            errln("Overflow exception while decoding UTF32LE (1) should have been thrown.");
        } catch (Exception ex) {
        }
        // test overflow buffer handling in CharsetDecoderICU
        bs.position(0);
        us.position(0);
        decoder.reset();
        result = decoder.decode(bs, us, true);
        if (result.isOverflow()) {
            result = decoder.decode(bs, us, true);
            if (!result.isOverflow()) {
                errln("Overflow buffer error while decoding UTF32LE should have occurred.");
            }
        } else {
            errln("Overflow buffer error while decoding UTF32LE should have occurred.");
        }
        
        us.clear();
        bs.clear();
        //test malform buffer
        bs.put((byte)0x02); bs.put((byte)0xD9); bs.put((byte)0x00); bs.put((byte)0x00);
        us.put((char)0x0000);
        
        us.limit(us.position());
        us.position(0);
        bs.limit(bs.position());
        bs.position(0);
        
        try {
            smBufDecode(decoder, "UTF-32LE", bs, us, true, false);
            errln("Malform exception while decoding UTF32LE (2) should have been thrown.");
        } catch (Exception ex) {
        }
        
        us.clear();
        bs.clear();
        //test malform buffer
        bs.put((byte)0xFF); bs.put((byte)0xFE); bs.put((byte)0x00); bs.put((byte)0x00);
        bs.put((byte)0xFF); bs.put((byte)0xDF); bs.put((byte)0x10); 
        us.put((char)0x0000);
        
        us.limit(us.position());
        us.position(0);
        bs.limit(bs.position());
        bs.position(0);
        
        try {
            // must flush in order to exhibit malformed behavior
            smBufDecode(decoder, "UTF-32LE", bs, us, true, true);
            errln("Malform exception while decoding UTF32LE (3) should have been thrown.");
        } catch (Exception ex) {
        }
        
        us.clear();
        bs.clear();
        //test malform buffer
        bs.put((byte)0xFF); bs.put((byte)0xFE); bs.put((byte)0x00); bs.put((byte)0x00);
        bs.put((byte)0x02); bs.put((byte)0xD9); bs.put((byte)0x00); bs.put((byte)0x00);
        us.put((char)0x0000);
        
        us.limit(us.position());
        us.position(0);
        bs.limit(bs.position());
        bs.position(0);
        
        try {
            smBufDecode(decoder, "UTF-32LE", bs, us, true, false);
            errln("Malform exception while decoding UTF32LE (4) should have been thrown.");
        } catch (Exception ex) {
        }
        
        us.clear();
        bs.clear();
        //test overflow buffer
        bs.put((byte)0xFF); bs.put((byte)0xFE); bs.put((byte)0x00); bs.put((byte)0x00);
        bs.put((byte)0xDD); bs.put((byte)0xFF); bs.put((byte)0x10); bs.put((byte)0x00);
        us.put((char)0x0000);
        
        us.limit(us.position());
        us.position(0);
        bs.limit(bs.position());
        bs.position(0);
        
        try {
            smBufDecode(decoder, "UTF-32LE", bs, us, true, false);
            errln("Overflow exception while decoding UTF32LE (5) should have been thrown.");
        } catch (Exception ex) {
        }
        //end of decode UTF32LE
        
        bs.clear();
        us.clear();
        
        //decode UTF32BE
        decoder = provider.charsetForName("UTF-32BE").newDecoder();
        //test overflow buffer
        bs.put((byte)0x00); bs.put((byte)0x01); bs.put((byte)0xFF); bs.put((byte)0x41);
        us.put((char)0x0000);
        
        us.limit(us.position());

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    }
    
    //provide better code coverage for UTF8
    public void TestCharsetUTF8() {
        CoderResult result = CoderResult.UNDERFLOW;
        CharsetProvider provider = new CharsetProviderICU();       
        CharsetDecoder decoder = provider.charsetForName("UTF-8").newDecoder();
        CharsetEncoder encoder = provider.charsetForName("UTF-8").newEncoder();
        
        CharBuffer us = CharBuffer.allocate(0x10);
        ByteBuffer bs = ByteBuffer.allocate(0x10);
        ByteBuffer bs2;
        CharBuffer us2;

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    }
    
    //provide better code coverage for Charset UTF16
    public void TestCharsetUTF16() {
        CoderResult result = CoderResult.UNDERFLOW;
        CharsetProvider provider = new CharsetProviderICU();       
        CharsetDecoder decoder = provider.charsetForName("UTF-16").newDecoder();
        CharsetEncoder encoder = provider.charsetForName("UTF-16").newEncoder();
        
        CharBuffer us = CharBuffer.allocate(0x10);
        ByteBuffer bs = ByteBuffer.allocate(0x10);
        
        //test flush buffer and malform string
        bs.put((byte)0xFF); 
        us.put((char)0x0000);
        
        us.limit(us.position());
        us.position(0);
        bs.limit(bs.position());
        bs.position(0);
        
        result = decoder.decode(bs, us, true);
        result = decoder.flush(us);
        if (!result.isMalformed()) {
            errln("Malform error while decoding UTF-16 should have occurred.");
        }
        
        us.clear();
        bs.clear();
        
        us.put((char)0xD902); us.put((char)0xDD01); us.put((char)0x0041);
        
        us.limit(1);
        us.position(0);
        bs.limit(4);
        bs.position(0);
        
        result = encoder.encode(us, bs, true);
        us.limit(3);
        us.position(0);
        bs.limit(3);
        bs.position(0);
        result = encoder.encode(us, bs, true);
        if (!result.isOverflow()) {
            errln("Overflow buffer while encoding UTF-16 should have occurred.");
        }   
        
        us.clear();
        bs.clear();
        
        //test overflow buffer
        decoder.reset();
        decoder = provider.charsetForName("UTF-16BE").newDecoder();
        
        bs.put((byte)0xFF); bs.put((byte)0xFE); bs.put((byte)0x41);
        
        us.limit(0);
        us.position(0);

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    }
    
    //provide better code coverage for Charset ISO-2022-KR
    public void TestCharsetISO2022KR() {
        CoderResult result = CoderResult.UNDERFLOW;
        CharsetProvider provider = new CharsetProviderICU();       
        CharsetDecoder decoder = provider.charsetForName("ISO-2022-KR").newDecoder();
        
        byte bytearray[] = {
                (byte)0x1b, (byte)0x24, (byte)0x29, (byte)0x43, (byte)0x41, (byte)0x42,
        };
        char chararray[] = {

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    }
    
    //provide better code coverage for Charset ISO-2022-JP
    public void TestCharsetISO2022JP() {
        CoderResult result = CoderResult.UNDERFLOW;
        CharsetProvider provider = new CharsetProviderICU();       
        CharsetDecoder decoder = provider.charsetForName("ISO-2022-JP-2").newDecoder();
        
        byte bytearray[] = {
                (byte)0x1b, (byte)0x24, (byte)0x28, (byte)0x44, (byte)0x0A, (byte)0x41,
        };
        char chararray[] = {

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    }
    
    //provide better code coverage for Charset ASCII
    public void TestCharsetASCII() {
        CoderResult result = CoderResult.UNDERFLOW;
        CharsetProvider provider = new CharsetProviderICU();       
        CharsetDecoder decoder = provider.charsetForName("US-ASCII").newDecoder();
        
        byte bytearray[] = {
                (byte)0x41
        };
        char chararray[] = {

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    // provide better code coverage for Charset Callbacks
    /* Different aspects of callbacks are being tested including using different context available */
    public void TestCharsetCallbacks() {
        CoderResult result = CoderResult.UNDERFLOW;
        CharsetProvider provider = new CharsetProviderICU();       
        CharsetEncoder encoder = provider.charsetForName("iso-2022-jp").newEncoder();
        CharsetDecoder decoder = provider.charsetForName("iso-2022-jp").newDecoder();
        
        String context3[] = {
                "i",
                "J"
        };

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        }
    }
    
    // Testing invalid input exceptions
    public void TestInvalidInput() {
        CharsetProvider provider = new CharsetProviderICU();
        Charset charset = provider.charsetForName("iso-2022-jp");
        CharsetEncoder encoder = charset.newEncoder();
        CharsetDecoder decoder = charset.newDecoder();
        
        try {
            encoder.encode(CharBuffer.allocate(10), null, true);

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    // Port over from ICU4C for test conversion tables (mbcs version 5.x)
    // Provide better code coverage in CharsetMBCS, CharsetDecoderICU, and CharsetEncoderICU.
    public void TestCharsetTestData() {
        CoderResult result = CoderResult.UNDERFLOW;
        String charsetName = "test4";
        CharsetProvider provider = new CharsetProviderICU();
        Charset charset = ((CharsetProviderICU)provider).charsetForName(charsetName, "com/ibm/icu/dev/data/testdata",
                            this.getClass().getClassLoader());
        CharsetEncoder encoder = charset.newEncoder();
        CharsetDecoder decoder = charset.newDecoder();

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Related Classes of java.nio.charset.spi.CharsetProvider

com.ibm.icu.dev.test.charset.TestCharset

java.nio.charset.Charset

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