.build()
    val certificate = heldCertificate.certificate
    assertThat(certificate.notBefore.time).isEqualTo(5000L)
    assertThat(certificate.notAfter.time).isEqualTo(10000L)
  }

  @Test
  fun customDuration() {
    val now = System.currentTimeMillis()
    val heldCertificate =
      HeldCertificate.Builder()
        .duration(5, TimeUnit.SECONDS)
        .build()
    val certificate = heldCertificate.certificate