.hostOnlyDomain("example.com")
        .expiresAt(date("1970-01-01T00:00:00.000+0000").time)
        .build()
    assertThat(cookie.toString()).isEqualTo("a=b; max-age=0; path=/")
  }

  @Test fun builderDomainValidation() {
    assertFailsWith<IllegalArgumentException> {
      Cookie.Builder().hostOnlyDomain("a/b")
    }
  }

  @Test fun builderDomain() {
    val cookie =
      Cookie.Builder()