fun hostnameLowercaseCharactersMappedDirectly() {
    assertThat(parse("http://abcd").host).isEqualTo("abcd")
    assertThat(parse("http://σ").host).isEqualTo("xn--4xa")
  }

  @Test
  fun hostnameUppercaseCharactersConvertedToLowercase() {
    assertThat(parse("http://ABCD").host).isEqualTo("abcd")
    assertThat(parse("http://Σ").host).isEqualTo("xn--4xa")
  }

  @Test
  fun hostnameIgnoredCharacters() {