HpackHuffmanTest Class — netty Architecture

Source Code

codec-http2/src/test/java/io/netty/handler/codec/http2/HpackHuffmanTest.java lines 48–247

public class HpackHuffmanTest {

    @Test
    public void testHuffman() throws Http2Exception {
        String s = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
        for (int i = 0; i < s.length(); i++) {
            roundTrip(s.substring(0, i));
        }

        Random random = new Random(123456789L);
        byte[] buf = new byte[4096];
        random.nextBytes(buf);
        roundTrip(buf);
    }

    @Test
    public void testDecodeEOS() throws Http2Exception {
        final byte[] buf = new byte[4];
        for (int i = 0; i < 4; i++) {
            buf[i] = (byte) 0xFF;
        }
        assertThrows(Http2Exception.class, new Executable() {
            @Override
            public void execute() throws Throwable {
                decode(buf);
            }
        });
    }

    @Test
    public void testDecodeIllegalPadding() throws Http2Exception {
        final byte[] buf = new byte[1];
        buf[0] = 0x00; // '0', invalid padding
        assertThrows(Http2Exception.class, new Executable() {
            @Override
            public void execute() throws Throwable {
                decode(buf);
            }
        });
    }

    @Test
    public void testDecodeExtraPadding() throws Http2Exception {
        final byte[] buf = makeBuf(0x0f, 0xFF); // '1', 'EOS'
        assertThrows(Http2Exception.class, new Executable() {
            @Override
            public void execute() throws Throwable {
                decode(buf);
            }
        });
    }

    @Test
    public void testDecodeExtraPadding1byte() throws Http2Exception {
        final byte[] buf = makeBuf(0xFF);
        assertThrows(Http2Exception.class, new Executable() {
            @Override
            public void execute() throws Throwable {
                decode(buf);
            }
        });
    }

    @Test
    public void testDecodeExtraPadding2byte() throws Http2Exception {
        final byte[] buf = makeBuf(0x1F, 0xFF); // 'a'
        assertThrows(Http2Exception.class, new Executable() {
            @Override
            public void execute() throws Throwable {
                decode(buf);
            }
        });
    }

    @Test
    public void testDecodeExtraPadding3byte() throws Http2Exception {
        final byte[] buf = makeBuf(0x1F, 0xFF, 0xFF); // 'a'
        assertThrows(Http2Exception.class, new Executable() {
            @Override
            public void execute() throws Throwable {
                decode(buf);