*    119 : Ignored.
 *    120 : Valid.
 *    121 : Disallowed
 *    122 : Mapped inline to the sequence: [b2].
 *    123 : Mapped inline to the sequence: [b2a].
 *    124 : Mapped inline to the sequence: [b2, b3].
 *    125 : Mapped inline to the sequence: [b2a, b3].
 *    126 : Mapped inline to the sequence: [b2, b3a].
 *    127 : Mapped inline to the sequence: [b2a, b3a].
 *

        val b2bit8 = mappedTo[0] and 0x80 != 0
        val b3bit8 = mappedTo[1] and 0x80 != 0
        return when {
          b2bit8 && b3bit8 -> 127
          b3bit8 -> 126
          b2bit8 -> 125
          else -> 124
        }
      }

    val b2: Int
      get() = mappedTo[0] and 0x7f

    val b3: Int
      get() = mappedTo[1] and 0x7f
  }

  data class InlineDelta(
    override val rangeStart: Int,

        "Payload size must be less than or equal to 125",
      )
    }
  }

  @Test fun closeTooLongThrows() {
    assertFailsWith<IllegalArgumentException> {
      val longReason: ByteString = repeat('X', 124).encodeUtf8()
      serverWriter.writeClose(1000, longReason)
    }.also { expected ->
      assertThat(expected.message).isEqualTo(
        "Payload size must be less than or equal to 125",
      )
    }
  }

    assertThat(formEncode(96)).isEqualTo("%60")
    assertThat(formEncode(97)).isEqualTo("a")
    assertThat(formEncode(122)).isEqualTo("z")
    assertThat(formEncode(123)).isEqualTo("%7B")
    assertThat(formEncode(124)).isEqualTo("%7C")
    assertThat(formEncode(125)).isEqualTo("%7D")
    assertThat(formEncode(126)).isEqualTo("%7E")
    assertThat(formEncode(127)).isEqualTo("%7F")
    assertThat(formEncode(128)).isEqualTo("%C2%80")