}

  @Test fun clientCloseWithCodeAndReason() {
    clientWriter.writeClose(1001, "Hello".encodeUtf8())
    assertData("888760b420bb635d68de0cd84f")
  }

  @Test fun closeWithOnlyReasonThrows() {
    clientWriter.writeClose(0, "Hello".encodeUtf8())
    assertData("888760b420bb60b468de0cd84f")
  }

  @Test fun closeCodeOutOfRangeThrows() {
    assertFailsWith<IllegalArgumentException> {