hpackWriter!!.writeByteString("".encodeUtf8())
    assertBytes(0)
    assertThat(newReader(byteStream(0)).readByteString())
      .isEqualTo(ByteString.EMPTY)
  }

  @Test
  fun emitsDynamicTableSizeUpdate() {
    hpackWriter!!.resizeHeaderTable(2048)
    hpackWriter!!.writeHeaders(listOf(Header("foo", "bar")))
    assertBytes(
      // Dynamic table size update (size = 2048).
      0x3F,
      0xE1,