val hostNfc = "café.com"
    val hostNfcPunycode = "xn--caf-dma.com"
    val hostNfd = "café.com"
    val hostNfdPunycode = "xn--cafe-yvc.com"
    assertEquals(hostNfcPunycode, "http://$hostNfc/".toHttpUrl().host)
    assertEquals(hostNfcPunycode, "http://$hostNfcPunycode/".toHttpUrl().host)
    assertEquals(hostNfcPunycode, "http://$hostNfd/".toHttpUrl().host)

 * [Set]. Doing so is both inefficient because equality may require a DNS lookup, and incorrect
 * because unequal URLs may be equal because of how they are hosted.
 *
 * ### Equal URLs should be equal
 *
 * These two URLs are semantically identical, but `java.net.URI` disagrees:
 *
 *  * http://host:80/
 *
 *  * http://host
 *