This is a testharness.js-based test.
Found 45 FAIL, 0 TIMEOUT, 0 NOTRUN.
[FAIL] ≮ (using URL)
  Failed to construct 'URL': Invalid URL
[FAIL] ≮ (using URL.host)
  assert_equals: expected "xn--gdh" but got "x"
[FAIL] ≮ (using URL.hostname)
  assert_equals: expected "xn--gdh" but got "x"
[FAIL] ≮ (using <a>)
  Failed to construct 'URL': Invalid URL
[FAIL] ≮ (using <a>.host)
  assert_equals: expected "xn--gdh" but got "x"
[FAIL] ≮ (using <a>.hostname)
  assert_equals: expected "xn--gdh" but got "x"
[FAIL] ≮ (using <area>)
  Failed to construct 'URL': Invalid URL
[FAIL] ≮ (using <area>.host)
  assert_equals: expected "xn--gdh" but got "x"
[FAIL] ≮ (using <area>.hostname)
  assert_equals: expected "xn--gdh" but got "x"
[FAIL] ≯ (using URL)
  Failed to construct 'URL': Invalid URL
[FAIL] ≯ (using URL.host)
  assert_equals: expected "xn--hdh" but got "x"
[FAIL] ≯ (using URL.hostname)
  assert_equals: expected "xn--hdh" but got "x"
[FAIL] ≯ (using <a>)
  Failed to construct 'URL': Invalid URL
[FAIL] ≯ (using <a>.host)
  assert_equals: expected "xn--hdh" but got "x"
[FAIL] ≯ (using <a>.hostname)
  assert_equals: expected "xn--hdh" but got "x"
[FAIL] ≯ (using <area>)
  Failed to construct 'URL': Invalid URL
[FAIL] ≯ (using <area>.host)
  assert_equals: expected "xn--hdh" but got "x"
[FAIL] ≯ (using <area>.hostname)
  assert_equals: expected "xn--hdh" but got "x"
[FAIL] <­̸ (using URL)
  Failed to construct 'URL': Invalid URL
[FAIL] <­̸ (using URL.host)
  assert_equals: expected "xn--gdh" but got "x"
[FAIL] <­̸ (using URL.hostname)
  assert_equals: expected "xn--gdh" but got "x"
[FAIL] <­̸ (using <a>)
  Failed to construct 'URL': Invalid URL
[FAIL] <­̸ (using <a>.host)
  assert_equals: expected "xn--gdh" but got "x"
[FAIL] <­̸ (using <a>.hostname)
  assert_equals: expected "xn--gdh" but got "x"
[FAIL] <­̸ (using <area>)
  Failed to construct 'URL': Invalid URL
[FAIL] <­̸ (using <area>.host)
  assert_equals: expected "xn--gdh" but got "x"
[FAIL] <­̸ (using <area>.hostname)
  assert_equals: expected "xn--gdh" but got "x"
[FAIL] >­̸ (using URL)
  Failed to construct 'URL': Invalid URL
[FAIL] >­̸ (using URL.host)
  assert_equals: expected "xn--hdh" but got "x"
[FAIL] >­̸ (using URL.hostname)
  assert_equals: expected "xn--hdh" but got "x"
[FAIL] >­̸ (using <a>)
  Failed to construct 'URL': Invalid URL
[FAIL] >­̸ (using <a>.host)
  assert_equals: expected "xn--hdh" but got "x"
[FAIL] >­̸ (using <a>.hostname)
  assert_equals: expected "xn--hdh" but got "x"
[FAIL] >­̸ (using <area>)
  Failed to construct 'URL': Invalid URL
[FAIL] >­̸ (using <area>.host)
  assert_equals: expected "xn--hdh" but got "x"
[FAIL] >­̸ (using <area>.hostname)
  assert_equals: expected "xn--hdh" but got "x"
[FAIL] www .lookout.net (using URL)
  assert_throws_js: function "() => makeURL("url", hostTest.input)" did not throw
[FAIL] www .lookout.net (using URL.host)
  assert_equals: expected "x" but got "www%20.lookout.net"
[FAIL] www .lookout.net (using URL.hostname)
  assert_equals: expected "x" but got "www%20.lookout.net"
[FAIL] www .lookout.net (using <a>)
  assert_equals: expected "" but got "www%20.lookout.net"
[FAIL] www .lookout.net (using <a>.host)
  assert_equals: expected "x" but got "www%20.lookout.net"
[FAIL] www .lookout.net (using <a>.hostname)
  assert_equals: expected "x" but got "www%20.lookout.net"
[FAIL] www .lookout.net (using <area>)
  assert_equals: expected "" but got "www%20.lookout.net"
[FAIL] www .lookout.net (using <area>.host)
  assert_equals: expected "x" but got "www%20.lookout.net"
[FAIL] www .lookout.net (using <area>.hostname)
  assert_equals: expected "x" but got "www%20.lookout.net"
Harness: the test ran to completion.