code: /** 
   * http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-05#section-3.2.1
   */
  @Test public void toggleIndex() throws IOException {
    bytesIn.writeByte(0x82);
    bytesIn.writeByte(0x81);
    hpackReader.readHeaders();
    hpackReader.emitReferenceSet();
    assertEquals(1,hpackReader.headerCount);
    assertEquals(42,hpackReader.headerTableByteCount);
    Header entry=hpackReader.headerTable[headerTableLength() - 1];
    checkEntry(entry,":method","GET",42);
    assertHeaderNotReferenced(headerTableLength() - 1);
    assertTrue(hpackReader.getAndReset().isEmpty());
  }
  