assertThat(Adapters.INTEGER_AS_LONG.toDer(-549755813887L)).isEqualTo(bytes)
  }

  @Test fun `eight zeros`() {
    val bytes = "020200ff".decodeHex()
    assertThat(Adapters.INTEGER_AS_LONG.fromDer(bytes)).isEqualTo(255)
    assertThat(Adapters.INTEGER_AS_LONG.toDer(255)).isEqualTo(bytes)
  }

  @Test fun `eight ones`() {
    val bytes = "0201ff".decodeHex()

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