}.also { expected ->
      assertThat(expected).hasMessage("malformed bit string")
    }
  }

  @Test fun `octet string`() {
    val bytes = "0404030206A0".decodeHex()
    val octetString = "030206A0".decodeHex()
    assertThat(Adapters.OCTET_STRING.fromDer(bytes)).isEqualTo(octetString)
    assertThat(Adapters.OCTET_STRING.toDer(octetString)).isEqualTo(bytes)
  }