}.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)
  }

                    )
                      .decodeHex(),
                ),
                Extension(
                  id = keyUsage,
                  critical = true,
                  value = "030205a0".decodeHex(),
                ),
                Extension(
                  id = extendedKeyUsage,
                  critical = false,