clientReaderWithCompression.processNextFrame()
    }.also { expected ->
      assertThat(expected.message).isEqualTo("Unexpected rsv1 flag")
    }
  }

  @Test fun reservedFlag1IsUnsupportedForContinuationFrames() {
    data.write("c000".decodeHex()) // Empty continuation, flag 1 set.
    assertFailsWith<ProtocolException> {
      clientReaderWithCompression.processNextFrame()
    }.also { expected ->