diff --git a/test/parallel/test-url-format-invalid-input.js b/test/parallel/test-url-format-invalid-input.js
new file mode 100644
index 0000000000..6361e56f40
--- /dev/null
+++ b/test/parallel/test-url-format-invalid-input.js
@@ -0,0 +1,20 @@
+/* eslint-disable max-len */
+'use strict';
+require('../common');
+const assert = require('assert');
+const url = require('url');
+
+// https://github.com/nodejs/node/pull/1036
+const throws = [
+  undefined,
+  null,
+  true,
+  false,
+  0,
+  function() {}
+];
+for (let i = 0; i < throws.length; i++) {
+  assert.throws(function() { url.format(throws[i]); }, TypeError);
+}
+assert.strictEqual(url.format(''), '');
+assert.strictEqual(url.format({}), '');
diff --git a/test/parallel/test-url-format.js b/test/parallel/test-url-format.js
new file mode 100644
index 0000000000..fa4805bc8a
--- /dev/null
+++ b/test/parallel/test-url-format.js
@@ -0,0 +1,252 @@
+/* eslint-disable max-len */
+'use strict';
+require('../common');
+const assert = require('assert');
+const url = require('url');
+
+// some extra formatting tests, just to verify
+// that it'll format slightly wonky content to a valid url.
+const formatTests = {
+  'http://example.com?': {
+    href: 'http://example.com/?',
+    protocol: 'http:',
+    slashes: true,
+    host: 'example.com',
+    hostname: 'example.com',
+    search: '?',
+    query: {},
+    pathname: '/'
+  },
+  'http://example.com?foo=bar#frag': {
+    href: 'http://example.com/?foo=bar#frag',
+    protocol: 'http:',
+    host: 'example.com',
+    hostname: 'example.com',
+    hash: '#frag',
+    search: '?foo=bar',
+    query: 'foo=bar',
+    pathname: '/'
+  },
+  'http://example.com?foo=@bar#frag': {
+    href: 'http://example.com/?foo=@bar#frag',
+    protocol: 'http:',
+    host: 'example.com',
+    hostname: 'example.com',
+    hash: '#frag',
+    search: '?foo=@bar',
+    query: 'foo=@bar',
+    pathname: '/'
+  },
+  'http://example.com?foo=/bar/#frag': {
+    href: 'http://example.com/?foo=/bar/#frag',
+    protocol: 'http:',
+    host: 'example.com',
+    hostname: 'example.com',
+    hash: '#frag',
+    search: '?foo=/bar/',
+    query: 'foo=/bar/',
+    pathname: '/'
+  },
+  'http://example.com?foo=?bar/#frag': {
+    href: 'http://example.com/?foo=?bar/#frag',
+    protocol: 'http:',
+    host: 'example.com',
+    hostname: 'example.com',
+    hash: '#frag',
+    search: '?foo=?bar/',
+    query: 'foo=?bar/',
+    pathname: '/'
+  },
+  'http://example.com#frag=?bar/#frag': {
+    href: 'http://example.com/#frag=?bar/#frag',
+    protocol: 'http:',
+    host: 'example.com',
+    hostname: 'example.com',
+    hash: '#frag=?bar/#frag',
+    pathname: '/'
+  },
+  'http://google.com" onload="alert(42)/': {
+    href: 'http://google.com/%22%20onload=%22alert(42)/',
+    protocol: 'http:',
+    host: 'google.com',
+    pathname: '/%22%20onload=%22alert(42)/'
+  },
+  'http://a.com/a/b/c?s#h': {
+    href: 'http://a.com/a/b/c?s#h',
+    protocol: 'http',
+    host: 'a.com',
+    pathname: 'a/b/c',
+    hash: 'h',
+    search: 's'
+  },
+  'xmpp:isaacschlueter@jabber.org': {
+    href: 'xmpp:isaacschlueter@jabber.org',
+    protocol: 'xmpp:',
+    host: 'jabber.org',
+    auth: 'isaacschlueter',
+    hostname: 'jabber.org'
+  },
+  'http://atpass:foo%40bar@127.0.0.1/': {
+    href: 'http://atpass:foo%40bar@127.0.0.1/',
+    auth: 'atpass:foo@bar',
+    hostname: '127.0.0.1',
+    protocol: 'http:',
+    pathname: '/'
+  },
+  'http://atslash%2F%40:%2F%40@foo/': {
+    href: 'http://atslash%2F%40:%2F%40@foo/',
+    auth: 'atslash/@:/@',
+    hostname: 'foo',
+    protocol: 'http:',
+    pathname: '/'
+  },
+  'svn+ssh://foo/bar': {
+    href: 'svn+ssh://foo/bar',
+    hostname: 'foo',
+    protocol: 'svn+ssh:',
+    pathname: '/bar',
+    slashes: true
+  },
+  'dash-test://foo/bar': {
+    href: 'dash-test://foo/bar',
+    hostname: 'foo',
+    protocol: 'dash-test:',
+    pathname: '/bar',
+    slashes: true
+  },
+  'dash-test:foo/bar': {
+    href: 'dash-test:foo/bar',
+    hostname: 'foo',
+    protocol: 'dash-test:',
+    pathname: '/bar'
+  },
+  'dot.test://foo/bar': {
+    href: 'dot.test://foo/bar',
+    hostname: 'foo',
+    protocol: 'dot.test:',
+    pathname: '/bar',
+    slashes: true
+  },
+  'dot.test:foo/bar': {
+    href: 'dot.test:foo/bar',
+    hostname: 'foo',
+    protocol: 'dot.test:',
+    pathname: '/bar'
+  },
+  // ipv6 support
+  'coap:u:p@[::1]:61616/.well-known/r?n=Temperature': {
+    href: 'coap:u:p@[::1]:61616/.well-known/r?n=Temperature',
+    protocol: 'coap:',
+    auth: 'u:p',
+    hostname: '::1',
+    port: '61616',
+    pathname: '/.well-known/r',
+    search: 'n=Temperature'
+  },
+  'coap:[fedc:ba98:7654:3210:fedc:ba98:7654:3210]:61616/s/stopButton': {
+    href: 'coap:[fedc:ba98:7654:3210:fedc:ba98:7654:3210]:61616/s/stopButton',
+    protocol: 'coap',
+    host: '[fedc:ba98:7654:3210:fedc:ba98:7654:3210]:61616',
+    pathname: '/s/stopButton'
+  },
+
+  // encode context-specific delimiters in path and query, but do not touch
+  // other non-delimiter chars like `%`.
+  // <https://github.com/joyent/node/issues/4082>
+
+  // `#`,`?` in path
+  '/path/to/%%23%3F+=&.txt?foo=theA1#bar': {
+    href: '/path/to/%%23%3F+=&.txt?foo=theA1#bar',
+    pathname: '/path/to/%#?+=&.txt',
+    query: {
+      foo: 'theA1'
+    },
+    hash: '#bar'
+  },
+
+  // `#`,`?` in path + `#` in query
+  '/path/to/%%23%3F+=&.txt?foo=the%231#bar': {
+    href: '/path/to/%%23%3F+=&.txt?foo=the%231#bar',
+    pathname: '/path/to/%#?+=&.txt',
+    query: {
+      foo: 'the#1'
+    },
+    hash: '#bar'
+  },
+
+  // `?` and `#` in path and search
+  'http://ex.com/foo%3F100%m%23r?abc=the%231?&foo=bar#frag': {
+    href: 'http://ex.com/foo%3F100%m%23r?abc=the%231?&foo=bar#frag',
+    protocol: 'http:',
+    hostname: 'ex.com',
+    hash: '#frag',
+    search: '?abc=the#1?&foo=bar',
+    pathname: '/foo?100%m#r',
+  },
+
+  // `?` and `#` in search only
+  'http://ex.com/fooA100%mBr?abc=the%231?&foo=bar#frag': {
+    href: 'http://ex.com/fooA100%mBr?abc=the%231?&foo=bar#frag',
+    protocol: 'http:',
+    hostname: 'ex.com',
+    hash: '#frag',
+    search: '?abc=the#1?&foo=bar',
+    pathname: '/fooA100%mBr',
+  },
+
+  // multiple `#` in search
+  'http://example.com/?foo=bar%231%232%233&abc=%234%23%235#frag': {
+    href: 'http://example.com/?foo=bar%231%232%233&abc=%234%23%235#frag',
+    protocol: 'http:',
+    slashes: true,
+    host: 'example.com',
+    hostname: 'example.com',
+    hash: '#frag',
+    search: '?foo=bar#1#2#3&abc=#4##5',
+    query: {},
+    pathname: '/'
+  },
+
+  // more than 255 characters in hostname which exceeds the limit
+  [`http://${'a'.repeat(255)}.com/node`]: {
+    href: 'http:///node',
+    protocol: 'http:',
+    slashes: true,
+    host: '',
+    hostname: '',
+    pathname: '/node',
+    path: '/node'
+  },
+
+   // greater than or equal to 63 characters after `.` in hostname
+  [`http://www.${'z'.repeat(63)}example.com/node`]: {
+    href: `http://www.${'z'.repeat(63)}example.com/node`,
+    protocol: 'http:',
+    slashes: true,
+    host: `www.${'z'.repeat(63)}example.com`,
+    hostname: `www.${'z'.repeat(63)}example.com`,
+    pathname: '/node',
+    path: '/node'
+  },
+
+  // https://github.com/nodejs/node/issues/3361
+  'file:///home/user': {
+    href: 'file:///home/user',
+    protocol: 'file',
+    pathname: '/home/user',
+    path: '/home/user'
+  }
+};
+for (const u in formatTests) {
+  const expect = formatTests[u].href;
+  delete formatTests[u].href;
+  const actual = url.format(u);
+  const actualObj = url.format(formatTests[u]);
+  assert.strictEqual(actual, expect,
+                     'wonky format(' + u + ') == ' + expect +
+                     '\nactual:' + actual);
+  assert.strictEqual(actualObj, expect,
+                     'wonky format(' + JSON.stringify(formatTests[u]) +
+                     ') == ' + expect +
+                     '\nactual: ' + actualObj);
+}
diff --git a/test/parallel/test-url-parse-format.js b/test/parallel/test-url-parse-format.js
new file mode 100644
index 0000000000..f75f979b29
--- /dev/null
+++ b/test/parallel/test-url-parse-format.js
@@ -0,0 +1,925 @@
+/* eslint-disable max-len */
+'use strict';
+require('../common');
+const assert = require('assert');
+const inspect = require('util').inspect;
+
+const url = require('url');
+
+// URLs to parse, and expected data
+// { url : parsed }
+const parseTests = {
+  '//some_path': {
+    href: '//some_path',
+    pathname: '//some_path',
+    path: '//some_path'
+  },
+
+  'http:\\\\evil-phisher\\foo.html#h\\a\\s\\h': {
+    protocol: 'http:',
+    slashes: true,
+    host: 'evil-phisher',
+    hostname: 'evil-phisher',
+    pathname: '/foo.html',
+    path: '/foo.html',
+    hash: '#h%5Ca%5Cs%5Ch',
+    href: 'http://evil-phisher/foo.html#h%5Ca%5Cs%5Ch'
+  },
+
+  'http:\\\\evil-phisher\\foo.html?json="\\"foo\\""#h\\a\\s\\h': {
+    protocol: 'http:',
+    slashes: true,
+    host: 'evil-phisher',
+    hostname: 'evil-phisher',
+    pathname: '/foo.html',
+    search: '?json=%22%5C%22foo%5C%22%22',
+    query: 'json=%22%5C%22foo%5C%22%22',
+    path: '/foo.html?json=%22%5C%22foo%5C%22%22',
+    hash: '#h%5Ca%5Cs%5Ch',
+    href: 'http://evil-phisher/foo.html?json=%22%5C%22foo%5C%22%22#h%5Ca%5Cs%5Ch'
+  },
+
+  'http:\\\\evil-phisher\\foo.html#h\\a\\s\\h?blarg': {
+    protocol: 'http:',
+    slashes: true,
+    host: 'evil-phisher',
+    hostname: 'evil-phisher',
+    pathname: '/foo.html',
+    path: '/foo.html',
+    hash: '#h%5Ca%5Cs%5Ch?blarg',
+    href: 'http://evil-phisher/foo.html#h%5Ca%5Cs%5Ch?blarg'
+  },
+
+
+  'http:\\\\evil-phisher\\foo.html': {
+    protocol: 'http:',
+    slashes: true,
+    host: 'evil-phisher',
+    hostname: 'evil-phisher',
+    pathname: '/foo.html',
+    path: '/foo.html',
+    href: 'http://evil-phisher/foo.html'
+  },
+
+  'HTTP://www.example.com/': {
+    href: 'http://www.example.com/',
+    protocol: 'http:',
+    slashes: true,
+    host: 'www.example.com',
+    hostname: 'www.example.com',
+    pathname: '/',
+    path: '/'
+  },
+
+  'HTTP://www.example.com': {
+    href: 'http://www.example.com/',
+    protocol: 'http:',
+    slashes: true,
+    host: 'www.example.com',
+    hostname: 'www.example.com',
+    pathname: '/',
+    path: '/'
+  },
+
+  'http://www.ExAmPlE.com/': {
+    href: 'http://www.example.com/',
+    protocol: 'http:',
+    slashes: true,
+    host: 'www.example.com',
+    hostname: 'www.example.com',
+    pathname: '/',
+    path: '/'
+  },
+
+  'http://user:pw@www.ExAmPlE.com/': {
+    href: 'http://user:pw@www.example.com/',
+    protocol: 'http:',
+    slashes: true,
+    auth: 'user:pw',
+    host: 'www.example.com',
+    hostname: 'www.example.com',
+    pathname: '/',
+    path: '/'
+  },
+
+  'http://USER:PW@www.ExAmPlE.com/': {
+    href: 'http://USER:PW@www.example.com/',
+    protocol: 'http:',
+    slashes: true,
+    auth: 'USER:PW',
+    host: 'www.example.com',
+    hostname: 'www.example.com',
+    pathname: '/',
+    path: '/'
+  },
+
+  'http://user@www.example.com/': {
+    href: 'http://user@www.example.com/',
+    protocol: 'http:',
+    slashes: true,
+    auth: 'user',
+    host: 'www.example.com',
+    hostname: 'www.example.com',
+    pathname: '/',
+    path: '/'
+  },
+
+  'http://user%3Apw@www.example.com/': {
+    href: 'http://user:pw@www.example.com/',
+    protocol: 'http:',
+    slashes: true,
+    auth: 'user:pw',
+    host: 'www.example.com',
+    hostname: 'www.example.com',
+    pathname: '/',
+    path: '/'
+  },
+
+  'http://x.com/path?that\'s#all, folks': {
+    href: 'http://x.com/path?that%27s#all,%20folks',
+    protocol: 'http:',
+    slashes: true,
+    host: 'x.com',
+    hostname: 'x.com',
+    search: '?that%27s',
+    query: 'that%27s',
+    pathname: '/path',
+    hash: '#all,%20folks',
+    path: '/path?that%27s'
+  },
+
+  'HTTP://X.COM/Y': {
+    href: 'http://x.com/Y',
+    protocol: 'http:',
+    slashes: true,
+    host: 'x.com',
+    hostname: 'x.com',
+    pathname: '/Y',
+    path: '/Y'
+  },
+
+  // whitespace in the front
+  ' http://www.example.com/': {
+    href: 'http://www.example.com/',
+    protocol: 'http:',
+    slashes: true,
+    host: 'www.example.com',
+    hostname: 'www.example.com',
+    pathname: '/',
+    path: '/'
+  },
+
+  // + not an invalid host character
+  // per https://url.spec.whatwg.org/#host-parsing
+  'http://x.y.com+a/b/c': {
+    href: 'http://x.y.com+a/b/c',
+    protocol: 'http:',
+    slashes: true,
+    host: 'x.y.com+a',
+    hostname: 'x.y.com+a',
+    pathname: '/b/c',
+    path: '/b/c'
+  },
+
+  // an unexpected invalid char in the hostname.
+  'HtTp://x.y.cOm;a/b/c?d=e#f g<h>i': {
+    href: 'http://x.y.com/;a/b/c?d=e#f%20g%3Ch%3Ei',
+    protocol: 'http:',
+    slashes: true,
+    host: 'x.y.com',
+    hostname: 'x.y.com',
+    pathname: ';a/b/c',
+    search: '?d=e',
+    query: 'd=e',
+    hash: '#f%20g%3Ch%3Ei',
+    path: ';a/b/c?d=e'
+  },
+
+  // make sure that we don't accidentally lcast the path parts.
+  'HtTp://x.y.cOm;A/b/c?d=e#f g<h>i': {
+    href: 'http://x.y.com/;A/b/c?d=e#f%20g%3Ch%3Ei',
+    protocol: 'http:',
+    slashes: true,
+    host: 'x.y.com',
+    hostname: 'x.y.com',
+    pathname: ';A/b/c',
+    search: '?d=e',
+    query: 'd=e',
+    hash: '#f%20g%3Ch%3Ei',
+    path: ';A/b/c?d=e'
+  },
+
+  'http://x...y...#p': {
+    href: 'http://x...y.../#p',
+    protocol: 'http:',
+    slashes: true,
+    host: 'x...y...',
+    hostname: 'x...y...',
+    hash: '#p',
+    pathname: '/',
+    path: '/'
+  },
+
+  'http://x/p/"quoted"': {
+    href: 'http://x/p/%22quoted%22',
+    protocol: 'http:',
+    slashes: true,
+    host: 'x',
+    hostname: 'x',
+    pathname: '/p/%22quoted%22',
+    path: '/p/%22quoted%22'
+  },
+
+  '<http://goo.corn/bread> Is a URL!': {
+    href: '%3Chttp://goo.corn/bread%3E%20Is%20a%20URL!',
+    pathname: '%3Chttp://goo.corn/bread%3E%20Is%20a%20URL!',
+    path: '%3Chttp://goo.corn/bread%3E%20Is%20a%20URL!'
+  },
+
+  'http://www.narwhaljs.org/blog/categories?id=news': {
+    href: 'http://www.narwhaljs.org/blog/categories?id=news',
+    protocol: 'http:',
+    slashes: true,
+    host: 'www.narwhaljs.org',
+    hostname: 'www.narwhaljs.org',
+    search: '?id=news',
+    query: 'id=news',
+    pathname: '/blog/categories',
+    path: '/blog/categories?id=news'
+  },
+
+  'http://mt0.google.com/vt/lyrs=m@114&hl=en&src=api&x=2&y=2&z=3&s=': {
+    href: 'http://mt0.google.com/vt/lyrs=m@114&hl=en&src=api&x=2&y=2&z=3&s=',
+    protocol: 'http:',
+    slashes: true,
+    host: 'mt0.google.com',
+    hostname: 'mt0.google.com',
+    pathname: '/vt/lyrs=m@114&hl=en&src=api&x=2&y=2&z=3&s=',
+    path: '/vt/lyrs=m@114&hl=en&src=api&x=2&y=2&z=3&s='
+  },
+
+  'http://mt0.google.com/vt/lyrs=m@114???&hl=en&src=api&x=2&y=2&z=3&s=': {
+    href: 'http://mt0.google.com/vt/lyrs=m@114???&hl=en&src=api' +
+          '&x=2&y=2&z=3&s=',
+    protocol: 'http:',
+    slashes: true,
+    host: 'mt0.google.com',
+    hostname: 'mt0.google.com',
+    search: '???&hl=en&src=api&x=2&y=2&z=3&s=',
+    query: '??&hl=en&src=api&x=2&y=2&z=3&s=',
+    pathname: '/vt/lyrs=m@114',
+    path: '/vt/lyrs=m@114???&hl=en&src=api&x=2&y=2&z=3&s='
+  },
+
+  'http://user:pass@mt0.google.com/vt/lyrs=m@114???&hl=en&src=api&x=2&y=2&z=3&s=': {
+    href: 'http://user:pass@mt0.google.com/vt/lyrs=m@114???' +
+          '&hl=en&src=api&x=2&y=2&z=3&s=',
+    protocol: 'http:',
+    slashes: true,
+    host: 'mt0.google.com',
+    auth: 'user:pass',
+    hostname: 'mt0.google.com',
+    search: '???&hl=en&src=api&x=2&y=2&z=3&s=',
+    query: '??&hl=en&src=api&x=2&y=2&z=3&s=',
+    pathname: '/vt/lyrs=m@114',
+    path: '/vt/lyrs=m@114???&hl=en&src=api&x=2&y=2&z=3&s='
+  },
+
+  'file:///etc/passwd': {
+    href: 'file:///etc/passwd',
+    slashes: true,
+    protocol: 'file:',
+    pathname: '/etc/passwd',
+    hostname: '',
+    host: '',
+    path: '/etc/passwd'
+  },
+
+  'file://localhost/etc/passwd': {
+    href: 'file://localhost/etc/passwd',
+    protocol: 'file:',
+    slashes: true,
+    pathname: '/etc/passwd',
+    hostname: 'localhost',
+    host: 'localhost',
+    path: '/etc/passwd'
+  },
+
+  'file://foo/etc/passwd': {
+    href: 'file://foo/etc/passwd',
+    protocol: 'file:',
+    slashes: true,
+    pathname: '/etc/passwd',
+    hostname: 'foo',
+    host: 'foo',
+    path: '/etc/passwd'
+  },
+
+  'file:///etc/node/': {
+    href: 'file:///etc/node/',
+    slashes: true,
+    protocol: 'file:',
+    pathname: '/etc/node/',
+    hostname: '',
+    host: '',
+    path: '/etc/node/'
+  },
+
+  'file://localhost/etc/node/': {
+    href: 'file://localhost/etc/node/',
+    protocol: 'file:',
+    slashes: true,
+    pathname: '/etc/node/',
+    hostname: 'localhost',
+    host: 'localhost',
+    path: '/etc/node/'
+  },
+
+  'file://foo/etc/node/': {
+    href: 'file://foo/etc/node/',
+    protocol: 'file:',
+    slashes: true,
+    pathname: '/etc/node/',
+    hostname: 'foo',
+    host: 'foo',
+    path: '/etc/node/'
+  },
+
+  'http:/baz/../foo/bar': {
+    href: 'http:/baz/../foo/bar',
+    protocol: 'http:',
+    pathname: '/baz/../foo/bar',
+    path: '/baz/../foo/bar'
+  },
+
+  'http://user:pass@example.com:8000/foo/bar?baz=quux#frag': {
+    href: 'http://user:pass@example.com:8000/foo/bar?baz=quux#frag',
+    protocol: 'http:',
+    slashes: true,
+    host: 'example.com:8000',
+    auth: 'user:pass',
+    port: '8000',
+    hostname: 'example.com',
+    hash: '#frag',
+    search: '?baz=quux',
+    query: 'baz=quux',
+    pathname: '/foo/bar',
+    path: '/foo/bar?baz=quux'
+  },
+
+  '//user:pass@example.com:8000/foo/bar?baz=quux#frag': {
+    href: '//user:pass@example.com:8000/foo/bar?baz=quux#frag',
+    slashes: true,
+    host: 'example.com:8000',
+    auth: 'user:pass',
+    port: '8000',
+    hostname: 'example.com',
+    hash: '#frag',
+    search: '?baz=quux',
+    query: 'baz=quux',
+    pathname: '/foo/bar',
+    path: '/foo/bar?baz=quux'
+  },
+
+  '/foo/bar?baz=quux#frag': {
+    href: '/foo/bar?baz=quux#frag',
+    hash: '#frag',
+    search: '?baz=quux',
+    query: 'baz=quux',
+    pathname: '/foo/bar',
+    path: '/foo/bar?baz=quux'
+  },
+
+  'http:/foo/bar?baz=quux#frag': {
+    href: 'http:/foo/bar?baz=quux#frag',
+    protocol: 'http:',
+    hash: '#frag',
+    search: '?baz=quux',
+    query: 'baz=quux',
+    pathname: '/foo/bar',
+    path: '/foo/bar?baz=quux'
+  },
+
+  'mailto:foo@bar.com?subject=hello': {
+    href: 'mailto:foo@bar.com?subject=hello',
+    protocol: 'mailto:',
+    host: 'bar.com',
+    auth: 'foo',
+    hostname: 'bar.com',
+    search: '?subject=hello',
+    query: 'subject=hello',
+    path: '?subject=hello'
+  },
+
+  'javascript:alert(\'hello\');': {
+    href: 'javascript:alert(\'hello\');',
+    protocol: 'javascript:',
+    pathname: 'alert(\'hello\');',
+    path: 'alert(\'hello\');'
+  },
+
+  'xmpp:isaacschlueter@jabber.org': {
+    href: 'xmpp:isaacschlueter@jabber.org',
+    protocol: 'xmpp:',
+    host: 'jabber.org',
+    auth: 'isaacschlueter',
+    hostname: 'jabber.org'
+  },
+
+  'http://atpass:foo%40bar@127.0.0.1:8080/path?search=foo#bar': {
+    href: 'http://atpass:foo%40bar@127.0.0.1:8080/path?search=foo#bar',
+    protocol: 'http:',
+    slashes: true,
+    host: '127.0.0.1:8080',
+    auth: 'atpass:foo@bar',
+    hostname: '127.0.0.1',
+    port: '8080',
+    pathname: '/path',
+    search: '?search=foo',
+    query: 'search=foo',
+    hash: '#bar',
+    path: '/path?search=foo'
+  },
+
+  'svn+ssh://foo/bar': {
+    href: 'svn+ssh://foo/bar',
+    host: 'foo',
+    hostname: 'foo',
+    protocol: 'svn+ssh:',
+    pathname: '/bar',
+    path: '/bar',
+    slashes: true
+  },
+
+  'dash-test://foo/bar': {
+    href: 'dash-test://foo/bar',
+    host: 'foo',
+    hostname: 'foo',
+    protocol: 'dash-test:',
+    pathname: '/bar',
+    path: '/bar',
+    slashes: true
+  },
+
+  'dash-test:foo/bar': {
+    href: 'dash-test:foo/bar',
+    host: 'foo',
+    hostname: 'foo',
+    protocol: 'dash-test:',
+    pathname: '/bar',
+    path: '/bar'
+  },
+
+  'dot.test://foo/bar': {
+    href: 'dot.test://foo/bar',
+    host: 'foo',
+    hostname: 'foo',
+    protocol: 'dot.test:',
+    pathname: '/bar',
+    path: '/bar',
+    slashes: true
+  },
+
+  'dot.test:foo/bar': {
+    href: 'dot.test:foo/bar',
+    host: 'foo',
+    hostname: 'foo',
+    protocol: 'dot.test:',
+    pathname: '/bar',
+    path: '/bar'
+  },
+
+  // IDNA tests
+  'http://www.日本語.com/': {
+    href: 'http://www.xn--wgv71a119e.com/',
+    protocol: 'http:',
+    slashes: true,
+    host: 'www.xn--wgv71a119e.com',
+    hostname: 'www.xn--wgv71a119e.com',
+    pathname: '/',
+    path: '/'
+  },
+
+  'http://example.Bücher.com/': {
+    href: 'http://example.xn--bcher-kva.com/',
+    protocol: 'http:',
+    slashes: true,
+    host: 'example.xn--bcher-kva.com',
+    hostname: 'example.xn--bcher-kva.com',
+    pathname: '/',
+    path: '/'
+  },
+
+  'http://www.Äffchen.com/': {
+    href: 'http://www.xn--ffchen-9ta.com/',
+    protocol: 'http:',
+    slashes: true,
+    host: 'www.xn--ffchen-9ta.com',
+    hostname: 'www.xn--ffchen-9ta.com',
+    pathname: '/',
+    path: '/'
+  },
+
+  'http://www.Äffchen.cOm;A/b/c?d=e#f g<h>i': {
+    href: 'http://www.xn--ffchen-9ta.com/;A/b/c?d=e#f%20g%3Ch%3Ei',
+    protocol: 'http:',
+    slashes: true,
+    host: 'www.xn--ffchen-9ta.com',
+    hostname: 'www.xn--ffchen-9ta.com',
+    pathname: ';A/b/c',
+    search: '?d=e',
+    query: 'd=e',
+    hash: '#f%20g%3Ch%3Ei',
+    path: ';A/b/c?d=e'
+  },
+
+  'http://SÉLIER.COM/': {
+    href: 'http://xn--slier-bsa.com/',
+    protocol: 'http:',
+    slashes: true,
+    host: 'xn--slier-bsa.com',
+    hostname: 'xn--slier-bsa.com',
+    pathname: '/',
+    path: '/'
+  },
+
+  'http://ليهمابتكلموشعربي؟.ي؟/': {
+    href: 'http://xn--egbpdaj6bu4bxfgehfvwxn.xn--egb9f/',
+    protocol: 'http:',
+    slashes: true,
+    host: 'xn--egbpdaj6bu4bxfgehfvwxn.xn--egb9f',
+    hostname: 'xn--egbpdaj6bu4bxfgehfvwxn.xn--egb9f',
+    pathname: '/',
+    path: '/'
+  },
+
+  'http://➡.ws/➡': {
+    href: 'http://xn--hgi.ws/➡',
+    protocol: 'http:',
+    slashes: true,
+    host: 'xn--hgi.ws',
+    hostname: 'xn--hgi.ws',
+    pathname: '/➡',
+    path: '/➡'
+  },
+
+  'http://bucket_name.s3.amazonaws.com/image.jpg': {
+    protocol: 'http:',
+    slashes: true,
+    host: 'bucket_name.s3.amazonaws.com',
+    hostname: 'bucket_name.s3.amazonaws.com',
+    pathname: '/image.jpg',
+    href: 'http://bucket_name.s3.amazonaws.com/image.jpg',
+    path: '/image.jpg'
+  },
+
+  'git+http://github.com/joyent/node.git': {
+    protocol: 'git+http:',
+    slashes: true,
+    host: 'github.com',
+    hostname: 'github.com',
+    pathname: '/joyent/node.git',
+    path: '/joyent/node.git',
+    href: 'git+http://github.com/joyent/node.git'
+  },
+
+  //if local1@domain1 is uses as a relative URL it may
+  //be parse into auth@hostname, but here there is no
+  //way to make it work in url.parse, I add the test to be explicit
+  'local1@domain1': {
+    pathname: 'local1@domain1',
+    path: 'local1@domain1',
+    href: 'local1@domain1'
+  },
+
+  //While this may seem counter-intuitive, a browser will parse
+  //<a href='www.google.com'> as a path.
+  'www.example.com': {
+    href: 'www.example.com',
+    pathname: 'www.example.com',
+    path: 'www.example.com'
+  },
+
+  // ipv6 support
+  '[fe80::1]': {
+    href: '[fe80::1]',
+    pathname: '[fe80::1]',
+    path: '[fe80::1]'
+  },
+
+  'coap://[FEDC:BA98:7654:3210:FEDC:BA98:7654:3210]': {
+    protocol: 'coap:',
+    slashes: true,
+    host: '[fedc:ba98:7654:3210:fedc:ba98:7654:3210]',
+    hostname: 'fedc:ba98:7654:3210:fedc:ba98:7654:3210',
+    href: 'coap://[fedc:ba98:7654:3210:fedc:ba98:7654:3210]/',
+    pathname: '/',
+    path: '/'
+  },
+
+  'coap://[1080:0:0:0:8:800:200C:417A]:61616/': {
+    protocol: 'coap:',
+    slashes: true,
+    host: '[1080:0:0:0:8:800:200c:417a]:61616',
+    port: '61616',
+    hostname: '1080:0:0:0:8:800:200c:417a',
+    href: 'coap://[1080:0:0:0:8:800:200c:417a]:61616/',
+    pathname: '/',
+    path: '/'
+  },
+
+  'http://user:password@[3ffe:2a00:100:7031::1]:8080': {
+    protocol: 'http:',
+    slashes: true,
+    auth: 'user:password',
+    host: '[3ffe:2a00:100:7031::1]:8080',
+    port: '8080',
+    hostname: '3ffe:2a00:100:7031::1',
+    href: 'http://user:password@[3ffe:2a00:100:7031::1]:8080/',
+    pathname: '/',
+    path: '/'
+  },
+
+  'coap://u:p@[::192.9.5.5]:61616/.well-known/r?n=Temperature': {
+    protocol: 'coap:',
+    slashes: true,
+    auth: 'u:p',
+    host: '[::192.9.5.5]:61616',
+    port: '61616',
+    hostname: '::192.9.5.5',
+    href: 'coap://u:p@[::192.9.5.5]:61616/.well-known/r?n=Temperature',
+    search: '?n=Temperature',
+    query: 'n=Temperature',
+    pathname: '/.well-known/r',
+    path: '/.well-known/r?n=Temperature'
+  },
+
+  // empty port
+  'http://example.com:': {
+    protocol: 'http:',
+    slashes: true,
+    host: 'example.com',
+    hostname: 'example.com',
+    href: 'http://example.com/',
+    pathname: '/',
+    path: '/'
+  },
+
+  'http://example.com:/a/b.html': {
+    protocol: 'http:',
+    slashes: true,
+    host: 'example.com',
+    hostname: 'example.com',
+    href: 'http://example.com/a/b.html',
+    pathname: '/a/b.html',
+    path: '/a/b.html'
+  },
+
+  'http://example.com:?a=b': {
+    protocol: 'http:',
+    slashes: true,
+    host: 'example.com',
+    hostname: 'example.com',
+    href: 'http://example.com/?a=b',
+    search: '?a=b',
+    query: 'a=b',
+    pathname: '/',
+    path: '/?a=b'
+  },
+
+  'http://example.com:#abc': {
+    protocol: 'http:',
+    slashes: true,
+    host: 'example.com',
+    hostname: 'example.com',
+    href: 'http://example.com/#abc',
+    hash: '#abc',
+    pathname: '/',
+    path: '/'
+  },
+
+  'http://[fe80::1]:/a/b?a=b#abc': {
+    protocol: 'http:',
+    slashes: true,
+    host: '[fe80::1]',
+    hostname: 'fe80::1',
+    href: 'http://[fe80::1]/a/b?a=b#abc',
+    search: '?a=b',
+    query: 'a=b',
+    hash: '#abc',
+    pathname: '/a/b',
+    path: '/a/b?a=b'
+  },
+
+  'http://-lovemonsterz.tumblr.com/rss': {
+    protocol: 'http:',
+    slashes: true,
+    host: '-lovemonsterz.tumblr.com',
+    hostname: '-lovemonsterz.tumblr.com',
+    href: 'http://-lovemonsterz.tumblr.com/rss',
+    pathname: '/rss',
+    path: '/rss',
+  },
+
+  'http://-lovemonsterz.tumblr.com:80/rss': {
+    protocol: 'http:',
+    slashes: true,
+    port: '80',
+    host: '-lovemonsterz.tumblr.com:80',
+    hostname: '-lovemonsterz.tumblr.com',
+    href: 'http://-lovemonsterz.tumblr.com:80/rss',
+    pathname: '/rss',
+    path: '/rss',
+  },
+
+  'http://user:pass@-lovemonsterz.tumblr.com/rss': {
+    protocol: 'http:',
+    slashes: true,
+    auth: 'user:pass',
+    host: '-lovemonsterz.tumblr.com',
+    hostname: '-lovemonsterz.tumblr.com',
+    href: 'http://user:pass@-lovemonsterz.tumblr.com/rss',
+    pathname: '/rss',
+    path: '/rss',
+  },
+
+  'http://user:pass@-lovemonsterz.tumblr.com:80/rss': {
+    protocol: 'http:',
+    slashes: true,
+    auth: 'user:pass',
+    port: '80',
+    host: '-lovemonsterz.tumblr.com:80',
+    hostname: '-lovemonsterz.tumblr.com',
+    href: 'http://user:pass@-lovemonsterz.tumblr.com:80/rss',
+    pathname: '/rss',
+    path: '/rss',
+  },
+
+  'http://_jabber._tcp.google.com/test': {
+    protocol: 'http:',
+    slashes: true,
+    host: '_jabber._tcp.google.com',
+    hostname: '_jabber._tcp.google.com',
+    href: 'http://_jabber._tcp.google.com/test',
+    pathname: '/test',
+    path: '/test',
+  },
+
+  'http://user:pass@_jabber._tcp.google.com/test': {
+    protocol: 'http:',
+    slashes: true,
+    auth: 'user:pass',
+    host: '_jabber._tcp.google.com',
+    hostname: '_jabber._tcp.google.com',
+    href: 'http://user:pass@_jabber._tcp.google.com/test',
+    pathname: '/test',
+    path: '/test',
+  },
+
+  'http://_jabber._tcp.google.com:80/test': {
+    protocol: 'http:',
+    slashes: true,
+    port: '80',
+    host: '_jabber._tcp.google.com:80',
+    hostname: '_jabber._tcp.google.com',
+    href: 'http://_jabber._tcp.google.com:80/test',
+    pathname: '/test',
+    path: '/test',
+  },
+
+  'http://user:pass@_jabber._tcp.google.com:80/test': {
+    protocol: 'http:',
+    slashes: true,
+    auth: 'user:pass',
+    port: '80',
+    host: '_jabber._tcp.google.com:80',
+    hostname: '_jabber._tcp.google.com',
+    href: 'http://user:pass@_jabber._tcp.google.com:80/test',
+    pathname: '/test',
+    path: '/test',
+  },
+
+  'http://x:1/\' <>"`/{}|\\^~`/': {
+    protocol: 'http:',
+    slashes: true,
+    host: 'x:1',
+    port: '1',
+    hostname: 'x',
+    pathname: '/%27%20%3C%3E%22%60/%7B%7D%7C/%5E~%60/',
+    path: '/%27%20%3C%3E%22%60/%7B%7D%7C/%5E~%60/',
+    href: 'http://x:1/%27%20%3C%3E%22%60/%7B%7D%7C/%5E~%60/'
+  },
+
+  'http://a@b@c/': {
+    protocol: 'http:',
+    slashes: true,
+    auth: 'a@b',
+    host: 'c',
+    hostname: 'c',
+    href: 'http://a%40b@c/',
+    path: '/',
+    pathname: '/'
+  },
+
+  'http://a@b?@c': {
+    protocol: 'http:',
+    slashes: true,
+    auth: 'a',
+    host: 'b',
+    hostname: 'b',
+    href: 'http://a@b/?@c',
+    path: '/?@c',
+    pathname: '/',
+    search: '?@c',
+    query: '@c'
+  },
+
+  'http://a.b/\tbc\ndr\ref g"hq\'j<kl>?mn\\op^q=r`99{st|uv}wz': {
+    protocol: 'http:',
+    slashes: true,
+    host: 'a.b',
+    port: null,
+    hostname: 'a.b',
+    hash: null,
+    pathname: '/%09bc%0Adr%0Def%20g%22hq%27j%3Ckl%3E',
+    path: '/%09bc%0Adr%0Def%20g%22hq%27j%3Ckl%3E?mn%5Cop%5Eq=r%6099%7Bst%7Cuv%7Dwz',
+    search: '?mn%5Cop%5Eq=r%6099%7Bst%7Cuv%7Dwz',
+    query: 'mn%5Cop%5Eq=r%6099%7Bst%7Cuv%7Dwz',
+    href: 'http://a.b/%09bc%0Adr%0Def%20g%22hq%27j%3Ckl%3E?mn%5Cop%5Eq=r%6099%7Bst%7Cuv%7Dwz'
+  },
+
+  'http://a\r" \t\n<\'b:b@c\r\nd/e?f': {
+    protocol: 'http:',
+    slashes: true,
+    auth: 'a\r" \t\n<\'b:b',
+    host: 'c',
+    port: null,
+    hostname: 'c',
+    hash: null,
+    search: '?f',
+    query: 'f',
+    pathname: '%0D%0Ad/e',
+    path: '%0D%0Ad/e?f',
+    href: 'http://a%0D%22%20%09%0A%3C\'b:b@c/%0D%0Ad/e?f'
+  },
+
+  // git urls used by npm
+  'git+ssh://git@github.com:npm/npm': {
+    protocol: 'git+ssh:',
+    slashes: true,
+    auth: 'git',
+    host: 'github.com',
+    port: null,
+    hostname: 'github.com',
+    hash: null,
+    search: null,
+    query: null,
+    pathname: '/:npm/npm',
+    path: '/:npm/npm',
+    href: 'git+ssh://git@github.com/:npm/npm'
+  },
+
+  'https://*': {
+    protocol: 'https:',
+    slashes: true,
+    auth: null,
+    host: '',
+    port: null,
+    hostname: '',
+    hash: null,
+    search: null,
+    query: null,
+    pathname: '/*',
+    path: '/*',
+    href: 'https:///*'
+  }
+};
+
+for (const u in parseTests) {
+  let actual = url.parse(u);
+  const spaced = url.parse(`     \t  ${u}\n\t`);
+  let expected = Object.assign(new url.Url(), parseTests[u]);
+
+  Object.keys(actual).forEach(function(i) {
+    if (expected[i] === undefined && actual[i] === null) {
+      expected[i] = null;
+    }
+  });
+
+  assert.deepStrictEqual(
+    actual,
+    expected,
+    `expected ${inspect(expected)}, got ${inspect(actual)}`
+  );
+  assert.deepStrictEqual(
+    spaced,
+    expected,
+    `expected ${inspect(expected)}, got ${inspect(spaced)}`
+  );
+
+  expected = parseTests[u].href;
+  actual = url.format(parseTests[u]);
+
+  assert.strictEqual(actual, expected,
+                     'format(' + u + ') == ' + u + '\nactual:' + actual);
+}
diff --git a/test/parallel/test-url-parse-invalid-input.js b/test/parallel/test-url-parse-invalid-input.js
new file mode 100644
index 0000000000..17fac57e14
--- /dev/null
+++ b/test/parallel/test-url-parse-invalid-input.js
@@ -0,0 +1,18 @@
+'use strict';
+require('../common');
+const assert = require('assert');
+const url = require('url');
+
+// https://github.com/joyent/node/issues/568
+[
+  undefined,
+  null,
+  true,
+  false,
+  0.0,
+  0,
+  [],
+  {}
+].forEach(function(val) {
+  assert.throws(function() { url.parse(val); }, TypeError);
+});
diff --git a/test/parallel/test-url-parse-query.js b/test/parallel/test-url-parse-query.js
new file mode 100644
index 0000000000..34c31d8a3c
--- /dev/null
+++ b/test/parallel/test-url-parse-query.js
@@ -0,0 +1,90 @@
+'use strict';
+require('../common');
+const assert = require('assert');
+const url = require('url');
+
+function createWithNoPrototype(properties = []) {
+  const noProto = Object.create(null);
+  properties.forEach((property) => {
+    noProto[property.key] = property.value;
+  });
+  return noProto;
+}
+
+function check(actual, expected) {
+  assert.notStrictEqual(Object.getPrototypeOf(actual), Object.prototype);
+  assert.deepStrictEqual(Object.keys(actual).sort(),
+                         Object.keys(expected).sort());
+  Object.keys(expected).forEach(function(key) {
+    assert.deepStrictEqual(actual[key], expected[key]);
+  });
+}
+
+const parseTestsWithQueryString = {
+  '/foo/bar?baz=quux#frag': {
+    href: '/foo/bar?baz=quux#frag',
+    hash: '#frag',
+    search: '?baz=quux',
+    query: createWithNoPrototype([{key: 'baz', value: 'quux'}]),
+    pathname: '/foo/bar',
+    path: '/foo/bar?baz=quux'
+  },
+  'http://example.com': {
+    href: 'http://example.com/',
+    protocol: 'http:',
+    slashes: true,
+    host: 'example.com',
+    hostname: 'example.com',
+    query: createWithNoPrototype(),
+    search: '',
+    pathname: '/',
+    path: '/'
+  },
+  '/example': {
+    protocol: null,
+    slashes: null,
+    auth: undefined,
+    host: null,
+    port: null,
+    hostname: null,
+    hash: null,
+    search: '',
+    query: createWithNoPrototype(),
+    pathname: '/example',
+    path: '/example',
+    href: '/example'
+  },
+  '/example?query=value': {
+    protocol: null,
+    slashes: null,
+    auth: undefined,
+    host: null,
+    port: null,
+    hostname: null,
+    hash: null,
+    search: '?query=value',
+    query: createWithNoPrototype([{ key: 'query', value: 'value' }]),
+    pathname: '/example',
+    path: '/example?query=value',
+    href: '/example?query=value'
+  }
+};
+for (const u in parseTestsWithQueryString) {
+  const actual = url.parse(u, true);
+  const expected = Object.assign(new url.Url(), parseTestsWithQueryString[u]);
+  for (const i in actual) {
+    if (actual[i] === null && expected[i] === undefined) {
+      expected[i] = null;
+    }
+  }
+
+  const properties = Object.keys(actual).sort();
+  assert.deepStrictEqual(properties, Object.keys(expected).sort());
+  properties.forEach((property) => {
+    if (property === 'query') {
+      check(actual[property], expected[property]);
+    } else {
+      assert.deepStrictEqual(actual[property], expected[property]);
+    }
+  });
+}
diff --git a/test/parallel/test-url-relative.js b/test/parallel/test-url-relative.js
new file mode 100644
index 0000000000..0d9384a704
--- /dev/null
+++ b/test/parallel/test-url-relative.js
@@ -0,0 +1,429 @@
+/* eslint-disable max-len */
+'use strict';
+require('../common');
+const assert = require('assert');
+const inspect = require('util').inspect;
+const url = require('url');
+
+/*
+ [from, path, expected]
+*/
+const relativeTests = [
+  ['/foo/bar/baz', 'quux', '/foo/bar/quux'],
+  ['/foo/bar/baz', 'quux/asdf', '/foo/bar/quux/asdf'],
+  ['/foo/bar/baz', 'quux/baz', '/foo/bar/quux/baz'],
+  ['/foo/bar/baz', '../quux/baz', '/foo/quux/baz'],
+  ['/foo/bar/baz', '/bar', '/bar'],
+  ['/foo/bar/baz/', 'quux', '/foo/bar/baz/quux'],
+  ['/foo/bar/baz/', 'quux/baz', '/foo/bar/baz/quux/baz'],
+  ['/foo/bar/baz', '../../../../../../../../quux/baz', '/quux/baz'],
+  ['/foo/bar/baz', '../../../../../../../quux/baz', '/quux/baz'],
+  ['/foo', '.', '/'],
+  ['/foo', '..', '/'],
+  ['/foo/', '.', '/foo/'],
+  ['/foo/', '..', '/'],
+  ['/foo/bar', '.', '/foo/'],
+  ['/foo/bar', '..', '/'],
+  ['/foo/bar/', '.', '/foo/bar/'],
+  ['/foo/bar/', '..', '/foo/'],
+  ['foo/bar', '../../../baz', '../../baz'],
+  ['foo/bar/', '../../../baz', '../baz'],
+  ['http://example.com/b//c//d;p?q#blarg', 'https:#hash2', 'https:///#hash2'],
+  ['http://example.com/b//c//d;p?q#blarg',
+   'https:/p/a/t/h?s#hash2',
+   'https://p/a/t/h?s#hash2'],
+  ['http://example.com/b//c//d;p?q#blarg',
+   'https://u:p@h.com/p/a/t/h?s#hash2',
+   'https://u:p@h.com/p/a/t/h?s#hash2'],
+  ['http://example.com/b//c//d;p?q#blarg',
+   'https:/a/b/c/d',
+   'https://a/b/c/d'],
+  ['http://example.com/b//c//d;p?q#blarg',
+   'http:#hash2',
+   'http://example.com/b//c//d;p?q#hash2'],
+  ['http://example.com/b//c//d;p?q#blarg',
+   'http:/p/a/t/h?s#hash2',
+   'http://example.com/p/a/t/h?s#hash2'],
+  ['http://example.com/b//c//d;p?q#blarg',
+   'http://u:p@h.com/p/a/t/h?s#hash2',
+   'http://u:p@h.com/p/a/t/h?s#hash2'],
+  ['http://example.com/b//c//d;p?q#blarg',
+   'http:/a/b/c/d',
+   'http://example.com/a/b/c/d'],
+  ['/foo/bar/baz', '/../etc/passwd', '/etc/passwd'],
+  ['http://localhost', 'file:///Users/foo', 'file:///Users/foo'],
+  ['http://localhost', 'file://foo/Users', 'file://foo/Users']
+];
+relativeTests.forEach(function(relativeTest) {
+  const a = url.resolve(relativeTest[0], relativeTest[1]);
+  const e = relativeTest[2];
+  assert.strictEqual(a, e,
+                     'resolve(' + [relativeTest[0], relativeTest[1]] + ') == ' + e +
+               '\n  actual=' + a);
+});
+
+//
+// Tests below taken from Chiron
+// http://code.google.com/p/chironjs/source/browse/trunk/src/test/http/url.js
+//
+// Copyright (c) 2002-2008 Kris Kowal <http://cixar.com/~kris.kowal>
+// used with permission under MIT License
+//
+// Changes marked with @isaacs
+
+const bases = [
+  'http://a/b/c/d;p?q',
+  'http://a/b/c/d;p?q=1/2',
+  'http://a/b/c/d;p=1/2?q',
+  'fred:///s//a/b/c',
+  'http:///s//a/b/c'
+];
+
+//[to, from, result]
+const relativeTests2 = [
+  // http://lists.w3.org/Archives/Public/uri/2004Feb/0114.html
+  ['../c', 'foo:a/b', 'foo:c'],
+  ['foo:.', 'foo:a', 'foo:'],
+  ['/foo/../../../bar', 'zz:abc', 'zz:/bar'],
+  ['/foo/../bar', 'zz:abc', 'zz:/bar'],
+  // @isaacs Disagree. Not how web browsers resolve this.
+  ['foo/../../../bar', 'zz:abc', 'zz:bar'],
+  // ['foo/../../../bar',  'zz:abc', 'zz:../../bar'], // @isaacs Added
+  ['foo/../bar', 'zz:abc', 'zz:bar'],
+  ['zz:.', 'zz:abc', 'zz:'],
+  ['/.', bases[0], 'http://a/'],
+  ['/.foo', bases[0], 'http://a/.foo'],
+  ['.foo', bases[0], 'http://a/b/c/.foo'],
+
+  // http://gbiv.com/protocols/uri/test/rel_examples1.html
+  // examples from RFC 2396
+  ['g:h', bases[0], 'g:h'],
+  ['g', bases[0], 'http://a/b/c/g'],
+  ['./g', bases[0], 'http://a/b/c/g'],
+  ['g/', bases[0], 'http://a/b/c/g/'],
+  ['/g', bases[0], 'http://a/g'],
+  ['//g', bases[0], 'http://g/'],
+  // changed with RFC 2396bis
+  //('?y', bases[0], 'http://a/b/c/d;p?y'],
+  ['?y', bases[0], 'http://a/b/c/d;p?y'],
+  ['g?y', bases[0], 'http://a/b/c/g?y'],
+  // changed with RFC 2396bis
+  //('#s', bases[0], CURRENT_DOC_URI + '#s'],
+  ['#s', bases[0], 'http://a/b/c/d;p?q#s'],
+  ['g#s', bases[0], 'http://a/b/c/g#s'],
+  ['g?y#s', bases[0], 'http://a/b/c/g?y#s'],
+  [';x', bases[0], 'http://a/b/c/;x'],
+  ['g;x', bases[0], 'http://a/b/c/g;x'],
+  ['g;x?y#s', bases[0], 'http://a/b/c/g;x?y#s'],
+  // changed with RFC 2396bis
+  //('', bases[0], CURRENT_DOC_URI],
+  ['', bases[0], 'http://a/b/c/d;p?q'],
+  ['.', bases[0], 'http://a/b/c/'],
+  ['./', bases[0], 'http://a/b/c/'],
+  ['..', bases[0], 'http://a/b/'],
+  ['../', bases[0], 'http://a/b/'],
+  ['../g', bases[0], 'http://a/b/g'],
+  ['../..', bases[0], 'http://a/'],
+  ['../../', bases[0], 'http://a/'],
+  ['../../g', bases[0], 'http://a/g'],
+  ['../../../g', bases[0], ('http://a/../g', 'http://a/g')],
+  ['../../../../g', bases[0], ('http://a/../../g', 'http://a/g')],
+  // changed with RFC 2396bis
+  //('/./g', bases[0], 'http://a/./g'],
+  ['/./g', bases[0], 'http://a/g'],
+  // changed with RFC 2396bis
+  //('/../g', bases[0], 'http://a/../g'],
+  ['/../g', bases[0], 'http://a/g'],
+  ['g.', bases[0], 'http://a/b/c/g.'],
+  ['.g', bases[0], 'http://a/b/c/.g'],
+  ['g..', bases[0], 'http://a/b/c/g..'],
+  ['..g', bases[0], 'http://a/b/c/..g'],
+  ['./../g', bases[0], 'http://a/b/g'],
+  ['./g/.', bases[0], 'http://a/b/c/g/'],
+  ['g/./h', bases[0], 'http://a/b/c/g/h'],
+  ['g/../h', bases[0], 'http://a/b/c/h'],
+  ['g;x=1/./y', bases[0], 'http://a/b/c/g;x=1/y'],
+  ['g;x=1/../y', bases[0], 'http://a/b/c/y'],
+  ['g?y/./x', bases[0], 'http://a/b/c/g?y/./x'],
+  ['g?y/../x', bases[0], 'http://a/b/c/g?y/../x'],
+  ['g#s/./x', bases[0], 'http://a/b/c/g#s/./x'],
+  ['g#s/../x', bases[0], 'http://a/b/c/g#s/../x'],
+  ['http:g', bases[0], ('http:g', 'http://a/b/c/g')],
+  ['http:', bases[0], ('http:', bases[0])],
+  // not sure where this one originated
+  ['/a/b/c/./../../g', bases[0], 'http://a/a/g'],
+
+  // http://gbiv.com/protocols/uri/test/rel_examples2.html
+  // slashes in base URI's query args
+  ['g', bases[1], 'http://a/b/c/g'],
+  ['./g', bases[1], 'http://a/b/c/g'],
+  ['g/', bases[1], 'http://a/b/c/g/'],
+  ['/g', bases[1], 'http://a/g'],
+  ['//g', bases[1], 'http://g/'],
+  // changed in RFC 2396bis
+  //('?y', bases[1], 'http://a/b/c/?y'],
+  ['?y', bases[1], 'http://a/b/c/d;p?y'],
+  ['g?y', bases[1], 'http://a/b/c/g?y'],
+  ['g?y/./x', bases[1], 'http://a/b/c/g?y/./x'],
+  ['g?y/../x', bases[1], 'http://a/b/c/g?y/../x'],
+  ['g#s', bases[1], 'http://a/b/c/g#s'],
+  ['g#s/./x', bases[1], 'http://a/b/c/g#s/./x'],
+  ['g#s/../x', bases[1], 'http://a/b/c/g#s/../x'],
+  ['./', bases[1], 'http://a/b/c/'],
+  ['../', bases[1], 'http://a/b/'],
+  ['../g', bases[1], 'http://a/b/g'],
+  ['../../', bases[1], 'http://a/'],
+  ['../../g', bases[1], 'http://a/g'],
+
+  // http://gbiv.com/protocols/uri/test/rel_examples3.html
+  // slashes in path params
+  // all of these changed in RFC 2396bis
+  ['g', bases[2], 'http://a/b/c/d;p=1/g'],
+  ['./g', bases[2], 'http://a/b/c/d;p=1/g'],
+  ['g/', bases[2], 'http://a/b/c/d;p=1/g/'],
+  ['g?y', bases[2], 'http://a/b/c/d;p=1/g?y'],
+  [';x', bases[2], 'http://a/b/c/d;p=1/;x'],
+  ['g;x', bases[2], 'http://a/b/c/d;p=1/g;x'],
+  ['g;x=1/./y', bases[2], 'http://a/b/c/d;p=1/g;x=1/y'],
+  ['g;x=1/../y', bases[2], 'http://a/b/c/d;p=1/y'],
+  ['./', bases[2], 'http://a/b/c/d;p=1/'],
+  ['../', bases[2], 'http://a/b/c/'],
+  ['../g', bases[2], 'http://a/b/c/g'],
+  ['../../', bases[2], 'http://a/b/'],
+  ['../../g', bases[2], 'http://a/b/g'],
+
+  // http://gbiv.com/protocols/uri/test/rel_examples4.html
+  // double and triple slash, unknown scheme
+  ['g:h', bases[3], 'g:h'],
+  ['g', bases[3], 'fred:///s//a/b/g'],
+  ['./g', bases[3], 'fred:///s//a/b/g'],
+  ['g/', bases[3], 'fred:///s//a/b/g/'],
+  ['/g', bases[3], 'fred:///g'],  // may change to fred:///s//a/g
+  ['//g', bases[3], 'fred://g'],   // may change to fred:///s//g
+  ['//g/x', bases[3], 'fred://g/x'], // may change to fred:///s//g/x
+  ['///g', bases[3], 'fred:///g'],
+  ['./', bases[3], 'fred:///s//a/b/'],
+  ['../', bases[3], 'fred:///s//a/'],
+  ['../g', bases[3], 'fred:///s//a/g'],
+
+  ['../../', bases[3], 'fred:///s//'],
+  ['../../g', bases[3], 'fred:///s//g'],
+  ['../../../g', bases[3], 'fred:///s/g'],
+  // may change to fred:///s//a/../../../g
+  ['../../../../g', bases[3], 'fred:///g'],
+
+  // http://gbiv.com/protocols/uri/test/rel_examples5.html
+  // double and triple slash, well-known scheme
+  ['g:h', bases[4], 'g:h'],
+  ['g', bases[4], 'http:///s//a/b/g'],
+  ['./g', bases[4], 'http:///s//a/b/g'],
+  ['g/', bases[4], 'http:///s//a/b/g/'],
+  ['/g', bases[4], 'http:///g'],  // may change to http:///s//a/g
+  ['//g', bases[4], 'http://g/'],   // may change to http:///s//g
+  ['//g/x', bases[4], 'http://g/x'], // may change to http:///s//g/x
+  ['///g', bases[4], 'http:///g'],
+  ['./', bases[4], 'http:///s//a/b/'],
+  ['../', bases[4], 'http:///s//a/'],
+  ['../g', bases[4], 'http:///s//a/g'],
+  ['../../', bases[4], 'http:///s//'],
+  ['../../g', bases[4], 'http:///s//g'],
+  // may change to http:///s//a/../../g
+  ['../../../g', bases[4], 'http:///s/g'],
+  // may change to http:///s//a/../../../g
+  ['../../../../g', bases[4], 'http:///g'],
+
+  // from Dan Connelly's tests in http://www.w3.org/2000/10/swap/uripath.py
+  ['bar:abc', 'foo:xyz', 'bar:abc'],
+  ['../abc', 'http://example/x/y/z', 'http://example/x/abc'],
+  ['http://example/x/abc', 'http://example2/x/y/z', 'http://example/x/abc'],
+  ['../r', 'http://ex/x/y/z', 'http://ex/x/r'],
+  ['q/r', 'http://ex/x/y', 'http://ex/x/q/r'],
+  ['q/r#s', 'http://ex/x/y', 'http://ex/x/q/r#s'],
+  ['q/r#s/t', 'http://ex/x/y', 'http://ex/x/q/r#s/t'],
+  ['ftp://ex/x/q/r', 'http://ex/x/y', 'ftp://ex/x/q/r'],
+  ['', 'http://ex/x/y', 'http://ex/x/y'],
+  ['', 'http://ex/x/y/', 'http://ex/x/y/'],
+  ['', 'http://ex/x/y/pdq', 'http://ex/x/y/pdq'],
+  ['z/', 'http://ex/x/y/', 'http://ex/x/y/z/'],
+  ['#Animal',
+   'file:/swap/test/animal.rdf',
+   'file:/swap/test/animal.rdf#Animal'],
+  ['../abc', 'file:/e/x/y/z', 'file:/e/x/abc'],
+  ['/example/x/abc', 'file:/example2/x/y/z', 'file:/example/x/abc'],
+  ['../r', 'file:/ex/x/y/z', 'file:/ex/x/r'],
+  ['/r', 'file:/ex/x/y/z', 'file:/r'],
+  ['q/r', 'file:/ex/x/y', 'file:/ex/x/q/r'],
+  ['q/r#s', 'file:/ex/x/y', 'file:/ex/x/q/r#s'],
+  ['q/r#', 'file:/ex/x/y', 'file:/ex/x/q/r#'],
+  ['q/r#s/t', 'file:/ex/x/y', 'file:/ex/x/q/r#s/t'],
+  ['ftp://ex/x/q/r', 'file:/ex/x/y', 'ftp://ex/x/q/r'],
+  ['', 'file:/ex/x/y', 'file:/ex/x/y'],
+  ['', 'file:/ex/x/y/', 'file:/ex/x/y/'],
+  ['', 'file:/ex/x/y/pdq', 'file:/ex/x/y/pdq'],
+  ['z/', 'file:/ex/x/y/', 'file:/ex/x/y/z/'],
+  ['file://meetings.example.com/cal#m1',
+   'file:/devel/WWW/2000/10/swap/test/reluri-1.n3',
+   'file://meetings.example.com/cal#m1'],
+  ['file://meetings.example.com/cal#m1',
+   'file:/home/connolly/w3ccvs/WWW/2000/10/swap/test/reluri-1.n3',
+   'file://meetings.example.com/cal#m1'],
+  ['./#blort', 'file:/some/dir/foo', 'file:/some/dir/#blort'],
+  ['./#', 'file:/some/dir/foo', 'file:/some/dir/#'],
+  // Ryan Lee
+  ['./', 'http://example/x/abc.efg', 'http://example/x/'],
+
+
+  // Graham Klyne's tests
+  // http://www.ninebynine.org/Software/HaskellUtils/Network/UriTest.xls
+  // 01-31 are from Connelly's cases
+
+  // 32-49
+  ['./q:r', 'http://ex/x/y', 'http://ex/x/q:r'],
+  ['./p=q:r', 'http://ex/x/y', 'http://ex/x/p=q:r'],
+  ['?pp/rr', 'http://ex/x/y?pp/qq', 'http://ex/x/y?pp/rr'],
+  ['y/z', 'http://ex/x/y?pp/qq', 'http://ex/x/y/z'],
+  ['local/qual@domain.org#frag',
+   'mailto:local',
+   'mailto:local/qual@domain.org#frag'],
+  ['more/qual2@domain2.org#frag',
+   'mailto:local/qual1@domain1.org',
+   'mailto:local/more/qual2@domain2.org#frag'],
+  ['y?q', 'http://ex/x/y?q', 'http://ex/x/y?q'],
+  ['/x/y?q', 'http://ex?p', 'http://ex/x/y?q'],
+  ['c/d', 'foo:a/b', 'foo:a/c/d'],
+  ['/c/d', 'foo:a/b', 'foo:/c/d'],
+  ['', 'foo:a/b?c#d', 'foo:a/b?c'],
+  ['b/c', 'foo:a', 'foo:b/c'],
+  ['../b/c', 'foo:/a/y/z', 'foo:/a/b/c'],
+  ['./b/c', 'foo:a', 'foo:b/c'],
+  ['/./b/c', 'foo:a', 'foo:/b/c'],
+  ['../../d', 'foo://a//b/c', 'foo://a/d'],
+  ['.', 'foo:a', 'foo:'],
+  ['..', 'foo:a', 'foo:'],
+
+  // 50-57[cf. TimBL comments --
+  //  http://lists.w3.org/Archives/Public/uri/2003Feb/0028.html,
+  //  http://lists.w3.org/Archives/Public/uri/2003Jan/0008.html)
+  ['abc', 'http://example/x/y%2Fz', 'http://example/x/abc'],
+  ['../../x%2Fabc', 'http://example/a/x/y/z', 'http://example/a/x%2Fabc'],
+  ['../x%2Fabc', 'http://example/a/x/y%2Fz', 'http://example/a/x%2Fabc'],
+  ['abc', 'http://example/x%2Fy/z', 'http://example/x%2Fy/abc'],
+  ['q%3Ar', 'http://ex/x/y', 'http://ex/x/q%3Ar'],
+  ['/x%2Fabc', 'http://example/x/y%2Fz', 'http://example/x%2Fabc'],
+  ['/x%2Fabc', 'http://example/x/y/z', 'http://example/x%2Fabc'],
+  ['/x%2Fabc', 'http://example/x/y%2Fz', 'http://example/x%2Fabc'],
+
+  // 70-77
+  ['local2@domain2', 'mailto:local1@domain1?query1', 'mailto:local2@domain2'],
+  ['local2@domain2?query2',
+   'mailto:local1@domain1',
+   'mailto:local2@domain2?query2'],
+  ['local2@domain2?query2',
+   'mailto:local1@domain1?query1',
+   'mailto:local2@domain2?query2'],
+  ['?query2', 'mailto:local@domain?query1', 'mailto:local@domain?query2'],
+  ['local@domain?query2', 'mailto:?query1', 'mailto:local@domain?query2'],
+  ['?query2', 'mailto:local@domain?query1', 'mailto:local@domain?query2'],
+  ['http://example/a/b?c/../d', 'foo:bar', 'http://example/a/b?c/../d'],
+  ['http://example/a/b#c/../d', 'foo:bar', 'http://example/a/b#c/../d'],
+
+  // 82-88
+  // @isaacs Disagree. Not how browsers do it.
+  // ['http:this', 'http://example.org/base/uri', 'http:this'],
+  // @isaacs Added
+  ['http:this', 'http://example.org/base/uri', 'http://example.org/base/this'],
+  ['http:this', 'http:base', 'http:this'],
+  ['.//g', 'f:/a', 'f://g'],
+  ['b/c//d/e', 'f://example.org/base/a', 'f://example.org/base/b/c//d/e'],
+  ['m2@example.ord/c2@example.org',
+   'mid:m@example.ord/c@example.org',
+   'mid:m@example.ord/m2@example.ord/c2@example.org'],
+  ['mini1.xml',
+   'file:///C:/DEV/Haskell/lib/HXmlToolbox-3.01/examples/',
+   'file:///C:/DEV/Haskell/lib/HXmlToolbox-3.01/examples/mini1.xml'],
+  ['../b/c', 'foo:a/y/z', 'foo:a/b/c'],
+
+  //changeing auth
+  ['http://diff:auth@www.example.com',
+   'http://asdf:qwer@www.example.com',
+   'http://diff:auth@www.example.com/'],
+
+  // changing port
+  ['https://example.com:81/',
+   'https://example.com:82/',
+   'https://example.com:81/'],
+
+  // https://github.com/nodejs/node/issues/1435
+  ['https://another.host.com/',
+   'https://user:password@example.org/',
+   'https://another.host.com/'],
+  ['//another.host.com/',
+   'https://user:password@example.org/',
+   'https://another.host.com/'],
+  ['http://another.host.com/',
+   'https://user:password@example.org/',
+   'http://another.host.com/'],
+  ['mailto:another.host.com',
+   'mailto:user@example.org',
+   'mailto:another.host.com'],
+  ['https://example.com/foo',
+   'https://user:password@example.com',
+   'https://user:password@example.com/foo'],
+];
+relativeTests2.forEach(function(relativeTest) {
+  const a = url.resolve(relativeTest[1], relativeTest[0]);
+  const e = url.format(relativeTest[2]);
+  assert.strictEqual(a, e,
+                     'resolve(' + [relativeTest[1], relativeTest[0]] + ') == ' + e +
+               '\n  actual=' + a);
+});
+
+//if format and parse are inverse operations then
+//resolveObject(parse(x), y) == parse(resolve(x, y))
+
+//format: [from, path, expected]
+relativeTests.forEach(function(relativeTest) {
+  let actual = url.resolveObject(url.parse(relativeTest[0]), relativeTest[1]);
+  let expected = url.parse(relativeTest[2]);
+
+
+  assert.deepStrictEqual(actual, expected);
+
+  expected = relativeTest[2];
+  actual = url.format(actual);
+
+  assert.strictEqual(actual, expected,
+                     'format(' + actual + ') == ' + expected + '\nactual:' + actual);
+});
+
+//format: [to, from, result]
+// the test: ['.//g', 'f:/a', 'f://g'] is a fundamental problem
+// url.parse('f:/a') does not have a host
+// url.resolve('f:/a', './/g') does not have a host because you have moved
+// down to the g directory.  i.e. f:     //g, however when this url is parsed
+// f:// will indicate that the host is g which is not the case.
+// it is unclear to me how to keep this information from being lost
+// it may be that a pathname of ////g should collapse to /g but this seems
+// to be a lot of work for an edge case.  Right now I remove the test
+if (relativeTests2[181][0] === './/g' &&
+    relativeTests2[181][1] === 'f:/a' &&
+    relativeTests2[181][2] === 'f://g') {
+  relativeTests2.splice(181, 1);
+}
+relativeTests2.forEach(function(relativeTest) {
+  let actual = url.resolveObject(url.parse(relativeTest[1]), relativeTest[0]);
+  let expected = url.parse(relativeTest[2]);
+
+  assert.deepStrictEqual(
+    actual,
+    expected,
+    `expected ${inspect(expected)} but got ${inspect(actual)}`
+  );
+
+  expected = url.format(relativeTest[2]);
+  actual = url.format(actual);
+
+  assert.strictEqual(actual, expected,
+                     'format(' + relativeTest[1] + ') == ' + expected +
+                     '\nactual:' + actual);
+});
diff --git a/test/parallel/test-url.js b/test/parallel/test-url.js
deleted file mode 100644
index 8c67c6855c..0000000000
--- a/test/parallel/test-url.js
+++ /dev/null
@@ -1,1714 +0,0 @@
-/* eslint-disable max-len */
-'use strict';
-require('../common');
-const assert = require('assert');
-const inspect = require('util').inspect;
-
-const url = require('url');
-
-// URLs to parse, and expected data
-// { url : parsed }
-const parseTests = {
-  '//some_path': {
-    href: '//some_path',
-    pathname: '//some_path',
-    path: '//some_path'
-  },
-
-  'http:\\\\evil-phisher\\foo.html#h\\a\\s\\h': {
-    protocol: 'http:',
-    slashes: true,
-    host: 'evil-phisher',
-    hostname: 'evil-phisher',
-    pathname: '/foo.html',
-    path: '/foo.html',
-    hash: '#h%5Ca%5Cs%5Ch',
-    href: 'http://evil-phisher/foo.html#h%5Ca%5Cs%5Ch'
-  },
-
-  'http:\\\\evil-phisher\\foo.html?json="\\"foo\\""#h\\a\\s\\h': {
-    protocol: 'http:',
-    slashes: true,
-    host: 'evil-phisher',
-    hostname: 'evil-phisher',
-    pathname: '/foo.html',
-    search: '?json=%22%5C%22foo%5C%22%22',
-    query: 'json=%22%5C%22foo%5C%22%22',
-    path: '/foo.html?json=%22%5C%22foo%5C%22%22',
-    hash: '#h%5Ca%5Cs%5Ch',
-    href: 'http://evil-phisher/foo.html?json=%22%5C%22foo%5C%22%22#h%5Ca%5Cs%5Ch'
-  },
-
-  'http:\\\\evil-phisher\\foo.html#h\\a\\s\\h?blarg': {
-    protocol: 'http:',
-    slashes: true,
-    host: 'evil-phisher',
-    hostname: 'evil-phisher',
-    pathname: '/foo.html',
-    path: '/foo.html',
-    hash: '#h%5Ca%5Cs%5Ch?blarg',
-    href: 'http://evil-phisher/foo.html#h%5Ca%5Cs%5Ch?blarg'
-  },
-
-
-  'http:\\\\evil-phisher\\foo.html': {
-    protocol: 'http:',
-    slashes: true,
-    host: 'evil-phisher',
-    hostname: 'evil-phisher',
-    pathname: '/foo.html',
-    path: '/foo.html',
-    href: 'http://evil-phisher/foo.html'
-  },
-
-  'HTTP://www.example.com/': {
-    href: 'http://www.example.com/',
-    protocol: 'http:',
-    slashes: true,
-    host: 'www.example.com',
-    hostname: 'www.example.com',
-    pathname: '/',
-    path: '/'
-  },
-
-  'HTTP://www.example.com': {
-    href: 'http://www.example.com/',
-    protocol: 'http:',
-    slashes: true,
-    host: 'www.example.com',
-    hostname: 'www.example.com',
-    pathname: '/',
-    path: '/'
-  },
-
-  'http://www.ExAmPlE.com/': {
-    href: 'http://www.example.com/',
-    protocol: 'http:',
-    slashes: true,
-    host: 'www.example.com',
-    hostname: 'www.example.com',
-    pathname: '/',
-    path: '/'
-  },
-
-  'http://user:pw@www.ExAmPlE.com/': {
-    href: 'http://user:pw@www.example.com/',
-    protocol: 'http:',
-    slashes: true,
-    auth: 'user:pw',
-    host: 'www.example.com',
-    hostname: 'www.example.com',
-    pathname: '/',
-    path: '/'
-  },
-
-  'http://USER:PW@www.ExAmPlE.com/': {
-    href: 'http://USER:PW@www.example.com/',
-    protocol: 'http:',
-    slashes: true,
-    auth: 'USER:PW',
-    host: 'www.example.com',
-    hostname: 'www.example.com',
-    pathname: '/',
-    path: '/'
-  },
-
-  'http://user@www.example.com/': {
-    href: 'http://user@www.example.com/',
-    protocol: 'http:',
-    slashes: true,
-    auth: 'user',
-    host: 'www.example.com',
-    hostname: 'www.example.com',
-    pathname: '/',
-    path: '/'
-  },
-
-  'http://user%3Apw@www.example.com/': {
-    href: 'http://user:pw@www.example.com/',
-    protocol: 'http:',
-    slashes: true,
-    auth: 'user:pw',
-    host: 'www.example.com',
-    hostname: 'www.example.com',
-    pathname: '/',
-    path: '/'
-  },
-
-  'http://x.com/path?that\'s#all, folks': {
-    href: 'http://x.com/path?that%27s#all,%20folks',
-    protocol: 'http:',
-    slashes: true,
-    host: 'x.com',
-    hostname: 'x.com',
-    search: '?that%27s',
-    query: 'that%27s',
-    pathname: '/path',
-    hash: '#all,%20folks',
-    path: '/path?that%27s'
-  },
-
-  'HTTP://X.COM/Y': {
-    href: 'http://x.com/Y',
-    protocol: 'http:',
-    slashes: true,
-    host: 'x.com',
-    hostname: 'x.com',
-    pathname: '/Y',
-    path: '/Y'
-  },
-
-  // whitespace in the front
-  ' http://www.example.com/': {
-    href: 'http://www.example.com/',
-    protocol: 'http:',
-    slashes: true,
-    host: 'www.example.com',
-    hostname: 'www.example.com',
-    pathname: '/',
-    path: '/'
-  },
-
-  // + not an invalid host character
-  // per https://url.spec.whatwg.org/#host-parsing
-  'http://x.y.com+a/b/c': {
-    href: 'http://x.y.com+a/b/c',
-    protocol: 'http:',
-    slashes: true,
-    host: 'x.y.com+a',
-    hostname: 'x.y.com+a',
-    pathname: '/b/c',
-    path: '/b/c'
-  },
-
-  // an unexpected invalid char in the hostname.
-  'HtTp://x.y.cOm;a/b/c?d=e#f g<h>i': {
-    href: 'http://x.y.com/;a/b/c?d=e#f%20g%3Ch%3Ei',
-    protocol: 'http:',
-    slashes: true,
-    host: 'x.y.com',
-    hostname: 'x.y.com',
-    pathname: ';a/b/c',
-    search: '?d=e',
-    query: 'd=e',
-    hash: '#f%20g%3Ch%3Ei',
-    path: ';a/b/c?d=e'
-  },
-
-  // make sure that we don't accidentally lcast the path parts.
-  'HtTp://x.y.cOm;A/b/c?d=e#f g<h>i': {
-    href: 'http://x.y.com/;A/b/c?d=e#f%20g%3Ch%3Ei',
-    protocol: 'http:',
-    slashes: true,
-    host: 'x.y.com',
-    hostname: 'x.y.com',
-    pathname: ';A/b/c',
-    search: '?d=e',
-    query: 'd=e',
-    hash: '#f%20g%3Ch%3Ei',
-    path: ';A/b/c?d=e'
-  },
-
-  'http://x...y...#p': {
-    href: 'http://x...y.../#p',
-    protocol: 'http:',
-    slashes: true,
-    host: 'x...y...',
-    hostname: 'x...y...',
-    hash: '#p',
-    pathname: '/',
-    path: '/'
-  },
-
-  'http://x/p/"quoted"': {
-    href: 'http://x/p/%22quoted%22',
-    protocol: 'http:',
-    slashes: true,
-    host: 'x',
-    hostname: 'x',
-    pathname: '/p/%22quoted%22',
-    path: '/p/%22quoted%22'
-  },
-
-  '<http://goo.corn/bread> Is a URL!': {
-    href: '%3Chttp://goo.corn/bread%3E%20Is%20a%20URL!',
-    pathname: '%3Chttp://goo.corn/bread%3E%20Is%20a%20URL!',
-    path: '%3Chttp://goo.corn/bread%3E%20Is%20a%20URL!'
-  },
-
-  'http://www.narwhaljs.org/blog/categories?id=news': {
-    href: 'http://www.narwhaljs.org/blog/categories?id=news',
-    protocol: 'http:',
-    slashes: true,
-    host: 'www.narwhaljs.org',
-    hostname: 'www.narwhaljs.org',
-    search: '?id=news',
-    query: 'id=news',
-    pathname: '/blog/categories',
-    path: '/blog/categories?id=news'
-  },
-
-  'http://mt0.google.com/vt/lyrs=m@114&hl=en&src=api&x=2&y=2&z=3&s=': {
-    href: 'http://mt0.google.com/vt/lyrs=m@114&hl=en&src=api&x=2&y=2&z=3&s=',
-    protocol: 'http:',
-    slashes: true,
-    host: 'mt0.google.com',
-    hostname: 'mt0.google.com',
-    pathname: '/vt/lyrs=m@114&hl=en&src=api&x=2&y=2&z=3&s=',
-    path: '/vt/lyrs=m@114&hl=en&src=api&x=2&y=2&z=3&s='
-  },
-
-  'http://mt0.google.com/vt/lyrs=m@114???&hl=en&src=api&x=2&y=2&z=3&s=': {
-    href: 'http://mt0.google.com/vt/lyrs=m@114???&hl=en&src=api' +
-          '&x=2&y=2&z=3&s=',
-    protocol: 'http:',
-    slashes: true,
-    host: 'mt0.google.com',
-    hostname: 'mt0.google.com',
-    search: '???&hl=en&src=api&x=2&y=2&z=3&s=',
-    query: '??&hl=en&src=api&x=2&y=2&z=3&s=',
-    pathname: '/vt/lyrs=m@114',
-    path: '/vt/lyrs=m@114???&hl=en&src=api&x=2&y=2&z=3&s='
-  },
-
-  'http://user:pass@mt0.google.com/vt/lyrs=m@114???&hl=en&src=api&x=2&y=2&z=3&s=': {
-    href: 'http://user:pass@mt0.google.com/vt/lyrs=m@114???' +
-          '&hl=en&src=api&x=2&y=2&z=3&s=',
-    protocol: 'http:',
-    slashes: true,
-    host: 'mt0.google.com',
-    auth: 'user:pass',
-    hostname: 'mt0.google.com',
-    search: '???&hl=en&src=api&x=2&y=2&z=3&s=',
-    query: '??&hl=en&src=api&x=2&y=2&z=3&s=',
-    pathname: '/vt/lyrs=m@114',
-    path: '/vt/lyrs=m@114???&hl=en&src=api&x=2&y=2&z=3&s='
-  },
-
-  'file:///etc/passwd': {
-    href: 'file:///etc/passwd',
-    slashes: true,
-    protocol: 'file:',
-    pathname: '/etc/passwd',
-    hostname: '',
-    host: '',
-    path: '/etc/passwd'
-  },
-
-  'file://localhost/etc/passwd': {
-    href: 'file://localhost/etc/passwd',
-    protocol: 'file:',
-    slashes: true,
-    pathname: '/etc/passwd',
-    hostname: 'localhost',
-    host: 'localhost',
-    path: '/etc/passwd'
-  },
-
-  'file://foo/etc/passwd': {
-    href: 'file://foo/etc/passwd',
-    protocol: 'file:',
-    slashes: true,
-    pathname: '/etc/passwd',
-    hostname: 'foo',
-    host: 'foo',
-    path: '/etc/passwd'
-  },
-
-  'file:///etc/node/': {
-    href: 'file:///etc/node/',
-    slashes: true,
-    protocol: 'file:',
-    pathname: '/etc/node/',
-    hostname: '',
-    host: '',
-    path: '/etc/node/'
-  },
-
-  'file://localhost/etc/node/': {
-    href: 'file://localhost/etc/node/',
-    protocol: 'file:',
-    slashes: true,
-    pathname: '/etc/node/',
-    hostname: 'localhost',
-    host: 'localhost',
-    path: '/etc/node/'
-  },
-
-  'file://foo/etc/node/': {
-    href: 'file://foo/etc/node/',
-    protocol: 'file:',
-    slashes: true,
-    pathname: '/etc/node/',
-    hostname: 'foo',
-    host: 'foo',
-    path: '/etc/node/'
-  },
-
-  'http:/baz/../foo/bar': {
-    href: 'http:/baz/../foo/bar',
-    protocol: 'http:',
-    pathname: '/baz/../foo/bar',
-    path: '/baz/../foo/bar'
-  },
-
-  'http://user:pass@example.com:8000/foo/bar?baz=quux#frag': {
-    href: 'http://user:pass@example.com:8000/foo/bar?baz=quux#frag',
-    protocol: 'http:',
-    slashes: true,
-    host: 'example.com:8000',
-    auth: 'user:pass',
-    port: '8000',
-    hostname: 'example.com',
-    hash: '#frag',
-    search: '?baz=quux',
-    query: 'baz=quux',
-    pathname: '/foo/bar',
-    path: '/foo/bar?baz=quux'
-  },
-
-  '//user:pass@example.com:8000/foo/bar?baz=quux#frag': {
-    href: '//user:pass@example.com:8000/foo/bar?baz=quux#frag',
-    slashes: true,
-    host: 'example.com:8000',
-    auth: 'user:pass',
-    port: '8000',
-    hostname: 'example.com',
-    hash: '#frag',
-    search: '?baz=quux',
-    query: 'baz=quux',
-    pathname: '/foo/bar',
-    path: '/foo/bar?baz=quux'
-  },
-
-  '/foo/bar?baz=quux#frag': {
-    href: '/foo/bar?baz=quux#frag',
-    hash: '#frag',
-    search: '?baz=quux',
-    query: 'baz=quux',
-    pathname: '/foo/bar',
-    path: '/foo/bar?baz=quux'
-  },
-
-  'http:/foo/bar?baz=quux#frag': {
-    href: 'http:/foo/bar?baz=quux#frag',
-    protocol: 'http:',
-    hash: '#frag',
-    search: '?baz=quux',
-    query: 'baz=quux',
-    pathname: '/foo/bar',
-    path: '/foo/bar?baz=quux'
-  },
-
-  'mailto:foo@bar.com?subject=hello': {
-    href: 'mailto:foo@bar.com?subject=hello',
-    protocol: 'mailto:',
-    host: 'bar.com',
-    auth: 'foo',
-    hostname: 'bar.com',
-    search: '?subject=hello',
-    query: 'subject=hello',
-    path: '?subject=hello'
-  },
-
-  'javascript:alert(\'hello\');': {
-    href: 'javascript:alert(\'hello\');',
-    protocol: 'javascript:',
-    pathname: 'alert(\'hello\');',
-    path: 'alert(\'hello\');'
-  },
-
-  'xmpp:isaacschlueter@jabber.org': {
-    href: 'xmpp:isaacschlueter@jabber.org',
-    protocol: 'xmpp:',
-    host: 'jabber.org',
-    auth: 'isaacschlueter',
-    hostname: 'jabber.org'
-  },
-
-  'http://atpass:foo%40bar@127.0.0.1:8080/path?search=foo#bar': {
-    href: 'http://atpass:foo%40bar@127.0.0.1:8080/path?search=foo#bar',
-    protocol: 'http:',
-    slashes: true,
-    host: '127.0.0.1:8080',
-    auth: 'atpass:foo@bar',
-    hostname: '127.0.0.1',
-    port: '8080',
-    pathname: '/path',
-    search: '?search=foo',
-    query: 'search=foo',
-    hash: '#bar',
-    path: '/path?search=foo'
-  },
-
-  'svn+ssh://foo/bar': {
-    href: 'svn+ssh://foo/bar',
-    host: 'foo',
-    hostname: 'foo',
-    protocol: 'svn+ssh:',
-    pathname: '/bar',
-    path: '/bar',
-    slashes: true
-  },
-
-  'dash-test://foo/bar': {
-    href: 'dash-test://foo/bar',
-    host: 'foo',
-    hostname: 'foo',
-    protocol: 'dash-test:',
-    pathname: '/bar',
-    path: '/bar',
-    slashes: true
-  },
-
-  'dash-test:foo/bar': {
-    href: 'dash-test:foo/bar',
-    host: 'foo',
-    hostname: 'foo',
-    protocol: 'dash-test:',
-    pathname: '/bar',
-    path: '/bar'
-  },
-
-  'dot.test://foo/bar': {
-    href: 'dot.test://foo/bar',
-    host: 'foo',
-    hostname: 'foo',
-    protocol: 'dot.test:',
-    pathname: '/bar',
-    path: '/bar',
-    slashes: true
-  },
-
-  'dot.test:foo/bar': {
-    href: 'dot.test:foo/bar',
-    host: 'foo',
-    hostname: 'foo',
-    protocol: 'dot.test:',
-    pathname: '/bar',
-    path: '/bar'
-  },
-
-  // IDNA tests
-  'http://www.日本語.com/': {
-    href: 'http://www.xn--wgv71a119e.com/',
-    protocol: 'http:',
-    slashes: true,
-    host: 'www.xn--wgv71a119e.com',
-    hostname: 'www.xn--wgv71a119e.com',
-    pathname: '/',
-    path: '/'
-  },
-
-  'http://example.Bücher.com/': {
-    href: 'http://example.xn--bcher-kva.com/',
-    protocol: 'http:',
-    slashes: true,
-    host: 'example.xn--bcher-kva.com',
-    hostname: 'example.xn--bcher-kva.com',
-    pathname: '/',
-    path: '/'
-  },
-
-  'http://www.Äffchen.com/': {
-    href: 'http://www.xn--ffchen-9ta.com/',
-    protocol: 'http:',
-    slashes: true,
-    host: 'www.xn--ffchen-9ta.com',
-    hostname: 'www.xn--ffchen-9ta.com',
-    pathname: '/',
-    path: '/'
-  },
-
-  'http://www.Äffchen.cOm;A/b/c?d=e#f g<h>i': {
-    href: 'http://www.xn--ffchen-9ta.com/;A/b/c?d=e#f%20g%3Ch%3Ei',
-    protocol: 'http:',
-    slashes: true,
-    host: 'www.xn--ffchen-9ta.com',
-    hostname: 'www.xn--ffchen-9ta.com',
-    pathname: ';A/b/c',
-    search: '?d=e',
-    query: 'd=e',
-    hash: '#f%20g%3Ch%3Ei',
-    path: ';A/b/c?d=e'
-  },
-
-  'http://SÉLIER.COM/': {
-    href: 'http://xn--slier-bsa.com/',
-    protocol: 'http:',
-    slashes: true,
-    host: 'xn--slier-bsa.com',
-    hostname: 'xn--slier-bsa.com',
-    pathname: '/',
-    path: '/'
-  },
-
-  'http://ليهمابتكلموشعربي؟.ي؟/': {
-    href: 'http://xn--egbpdaj6bu4bxfgehfvwxn.xn--egb9f/',
-    protocol: 'http:',
-    slashes: true,
-    host: 'xn--egbpdaj6bu4bxfgehfvwxn.xn--egb9f',
-    hostname: 'xn--egbpdaj6bu4bxfgehfvwxn.xn--egb9f',
-    pathname: '/',
-    path: '/'
-  },
-
-  'http://➡.ws/➡': {
-    href: 'http://xn--hgi.ws/➡',
-    protocol: 'http:',
-    slashes: true,
-    host: 'xn--hgi.ws',
-    hostname: 'xn--hgi.ws',
-    pathname: '/➡',
-    path: '/➡'
-  },
-
-  'http://bucket_name.s3.amazonaws.com/image.jpg': {
-    protocol: 'http:',
-    slashes: true,
-    host: 'bucket_name.s3.amazonaws.com',
-    hostname: 'bucket_name.s3.amazonaws.com',
-    pathname: '/image.jpg',
-    href: 'http://bucket_name.s3.amazonaws.com/image.jpg',
-    path: '/image.jpg'
-  },
-
-  'git+http://github.com/joyent/node.git': {
-    protocol: 'git+http:',
-    slashes: true,
-    host: 'github.com',
-    hostname: 'github.com',
-    pathname: '/joyent/node.git',
-    path: '/joyent/node.git',
-    href: 'git+http://github.com/joyent/node.git'
-  },
-
-  //if local1@domain1 is uses as a relative URL it may
-  //be parse into auth@hostname, but here there is no
-  //way to make it work in url.parse, I add the test to be explicit
-  'local1@domain1': {
-    pathname: 'local1@domain1',
-    path: 'local1@domain1',
-    href: 'local1@domain1'
-  },
-
-  //While this may seem counter-intuitive, a browser will parse
-  //<a href='www.google.com'> as a path.
-  'www.example.com': {
-    href: 'www.example.com',
-    pathname: 'www.example.com',
-    path: 'www.example.com'
-  },
-
-  // ipv6 support
-  '[fe80::1]': {
-    href: '[fe80::1]',
-    pathname: '[fe80::1]',
-    path: '[fe80::1]'
-  },
-
-  'coap://[FEDC:BA98:7654:3210:FEDC:BA98:7654:3210]': {
-    protocol: 'coap:',
-    slashes: true,
-    host: '[fedc:ba98:7654:3210:fedc:ba98:7654:3210]',
-    hostname: 'fedc:ba98:7654:3210:fedc:ba98:7654:3210',
-    href: 'coap://[fedc:ba98:7654:3210:fedc:ba98:7654:3210]/',
-    pathname: '/',
-    path: '/'
-  },
-
-  'coap://[1080:0:0:0:8:800:200C:417A]:61616/': {
-    protocol: 'coap:',
-    slashes: true,
-    host: '[1080:0:0:0:8:800:200c:417a]:61616',
-    port: '61616',
-    hostname: '1080:0:0:0:8:800:200c:417a',
-    href: 'coap://[1080:0:0:0:8:800:200c:417a]:61616/',
-    pathname: '/',
-    path: '/'
-  },
-
-  'http://user:password@[3ffe:2a00:100:7031::1]:8080': {
-    protocol: 'http:',
-    slashes: true,
-    auth: 'user:password',
-    host: '[3ffe:2a00:100:7031::1]:8080',
-    port: '8080',
-    hostname: '3ffe:2a00:100:7031::1',
-    href: 'http://user:password@[3ffe:2a00:100:7031::1]:8080/',
-    pathname: '/',
-    path: '/'
-  },
-
-  'coap://u:p@[::192.9.5.5]:61616/.well-known/r?n=Temperature': {
-    protocol: 'coap:',
-    slashes: true,
-    auth: 'u:p',
-    host: '[::192.9.5.5]:61616',
-    port: '61616',
-    hostname: '::192.9.5.5',
-    href: 'coap://u:p@[::192.9.5.5]:61616/.well-known/r?n=Temperature',
-    search: '?n=Temperature',
-    query: 'n=Temperature',
-    pathname: '/.well-known/r',
-    path: '/.well-known/r?n=Temperature'
-  },
-
-  // empty port
-  'http://example.com:': {
-    protocol: 'http:',
-    slashes: true,
-    host: 'example.com',
-    hostname: 'example.com',
-    href: 'http://example.com/',
-    pathname: '/',
-    path: '/'
-  },
-
-  'http://example.com:/a/b.html': {
-    protocol: 'http:',
-    slashes: true,
-    host: 'example.com',
-    hostname: 'example.com',
-    href: 'http://example.com/a/b.html',
-    pathname: '/a/b.html',
-    path: '/a/b.html'
-  },
-
-  'http://example.com:?a=b': {
-    protocol: 'http:',
-    slashes: true,
-    host: 'example.com',
-    hostname: 'example.com',
-    href: 'http://example.com/?a=b',
-    search: '?a=b',
-    query: 'a=b',
-    pathname: '/',
-    path: '/?a=b'
-  },
-
-  'http://example.com:#abc': {
-    protocol: 'http:',
-    slashes: true,
-    host: 'example.com',
-    hostname: 'example.com',
-    href: 'http://example.com/#abc',
-    hash: '#abc',
-    pathname: '/',
-    path: '/'
-  },
-
-  'http://[fe80::1]:/a/b?a=b#abc': {
-    protocol: 'http:',
-    slashes: true,
-    host: '[fe80::1]',
-    hostname: 'fe80::1',
-    href: 'http://[fe80::1]/a/b?a=b#abc',
-    search: '?a=b',
-    query: 'a=b',
-    hash: '#abc',
-    pathname: '/a/b',
-    path: '/a/b?a=b'
-  },
-
-  'http://-lovemonsterz.tumblr.com/rss': {
-    protocol: 'http:',
-    slashes: true,
-    host: '-lovemonsterz.tumblr.com',
-    hostname: '-lovemonsterz.tumblr.com',
-    href: 'http://-lovemonsterz.tumblr.com/rss',
-    pathname: '/rss',
-    path: '/rss',
-  },
-
-  'http://-lovemonsterz.tumblr.com:80/rss': {
-    protocol: 'http:',
-    slashes: true,
-    port: '80',
-    host: '-lovemonsterz.tumblr.com:80',
-    hostname: '-lovemonsterz.tumblr.com',
-    href: 'http://-lovemonsterz.tumblr.com:80/rss',
-    pathname: '/rss',
-    path: '/rss',
-  },
-
-  'http://user:pass@-lovemonsterz.tumblr.com/rss': {
-    protocol: 'http:',
-    slashes: true,
-    auth: 'user:pass',
-    host: '-lovemonsterz.tumblr.com',
-    hostname: '-lovemonsterz.tumblr.com',
-    href: 'http://user:pass@-lovemonsterz.tumblr.com/rss',
-    pathname: '/rss',
-    path: '/rss',
-  },
-
-  'http://user:pass@-lovemonsterz.tumblr.com:80/rss': {
-    protocol: 'http:',
-    slashes: true,
-    auth: 'user:pass',
-    port: '80',
-    host: '-lovemonsterz.tumblr.com:80',
-    hostname: '-lovemonsterz.tumblr.com',
-    href: 'http://user:pass@-lovemonsterz.tumblr.com:80/rss',
-    pathname: '/rss',
-    path: '/rss',
-  },
-
-  'http://_jabber._tcp.google.com/test': {
-    protocol: 'http:',
-    slashes: true,
-    host: '_jabber._tcp.google.com',
-    hostname: '_jabber._tcp.google.com',
-    href: 'http://_jabber._tcp.google.com/test',
-    pathname: '/test',
-    path: '/test',
-  },
-
-  'http://user:pass@_jabber._tcp.google.com/test': {
-    protocol: 'http:',
-    slashes: true,
-    auth: 'user:pass',
-    host: '_jabber._tcp.google.com',
-    hostname: '_jabber._tcp.google.com',
-    href: 'http://user:pass@_jabber._tcp.google.com/test',
-    pathname: '/test',
-    path: '/test',
-  },
-
-  'http://_jabber._tcp.google.com:80/test': {
-    protocol: 'http:',
-    slashes: true,
-    port: '80',
-    host: '_jabber._tcp.google.com:80',
-    hostname: '_jabber._tcp.google.com',
-    href: 'http://_jabber._tcp.google.com:80/test',
-    pathname: '/test',
-    path: '/test',
-  },
-
-  'http://user:pass@_jabber._tcp.google.com:80/test': {
-    protocol: 'http:',
-    slashes: true,
-    auth: 'user:pass',
-    port: '80',
-    host: '_jabber._tcp.google.com:80',
-    hostname: '_jabber._tcp.google.com',
-    href: 'http://user:pass@_jabber._tcp.google.com:80/test',
-    pathname: '/test',
-    path: '/test',
-  },
-
-  'http://x:1/\' <>"`/{}|\\^~`/': {
-    protocol: 'http:',
-    slashes: true,
-    host: 'x:1',
-    port: '1',
-    hostname: 'x',
-    pathname: '/%27%20%3C%3E%22%60/%7B%7D%7C/%5E~%60/',
-    path: '/%27%20%3C%3E%22%60/%7B%7D%7C/%5E~%60/',
-    href: 'http://x:1/%27%20%3C%3E%22%60/%7B%7D%7C/%5E~%60/'
-  },
-
-  'http://a@b@c/': {
-    protocol: 'http:',
-    slashes: true,
-    auth: 'a@b',
-    host: 'c',
-    hostname: 'c',
-    href: 'http://a%40b@c/',
-    path: '/',
-    pathname: '/'
-  },
-
-  'http://a@b?@c': {
-    protocol: 'http:',
-    slashes: true,
-    auth: 'a',
-    host: 'b',
-    hostname: 'b',
-    href: 'http://a@b/?@c',
-    path: '/?@c',
-    pathname: '/',
-    search: '?@c',
-    query: '@c'
-  },
-
-  'http://a.b/\tbc\ndr\ref g"hq\'j<kl>?mn\\op^q=r`99{st|uv}wz': {
-    protocol: 'http:',
-    slashes: true,
-    host: 'a.b',
-    port: null,
-    hostname: 'a.b',
-    hash: null,
-    pathname: '/%09bc%0Adr%0Def%20g%22hq%27j%3Ckl%3E',
-    path: '/%09bc%0Adr%0Def%20g%22hq%27j%3Ckl%3E?mn%5Cop%5Eq=r%6099%7Bst%7Cuv%7Dwz',
-    search: '?mn%5Cop%5Eq=r%6099%7Bst%7Cuv%7Dwz',
-    query: 'mn%5Cop%5Eq=r%6099%7Bst%7Cuv%7Dwz',
-    href: 'http://a.b/%09bc%0Adr%0Def%20g%22hq%27j%3Ckl%3E?mn%5Cop%5Eq=r%6099%7Bst%7Cuv%7Dwz'
-  },
-
-  'http://a\r" \t\n<\'b:b@c\r\nd/e?f': {
-    protocol: 'http:',
-    slashes: true,
-    auth: 'a\r" \t\n<\'b:b',
-    host: 'c',
-    port: null,
-    hostname: 'c',
-    hash: null,
-    search: '?f',
-    query: 'f',
-    pathname: '%0D%0Ad/e',
-    path: '%0D%0Ad/e?f',
-    href: 'http://a%0D%22%20%09%0A%3C\'b:b@c/%0D%0Ad/e?f'
-  },
-
-  // git urls used by npm
-  'git+ssh://git@github.com:npm/npm': {
-    protocol: 'git+ssh:',
-    slashes: true,
-    auth: 'git',
-    host: 'github.com',
-    port: null,
-    hostname: 'github.com',
-    hash: null,
-    search: null,
-    query: null,
-    pathname: '/:npm/npm',
-    path: '/:npm/npm',
-    href: 'git+ssh://git@github.com/:npm/npm'
-  },
-
-  'https://*': {
-    protocol: 'https:',
-    slashes: true,
-    auth: null,
-    host: '',
-    port: null,
-    hostname: '',
-    hash: null,
-    search: null,
-    query: null,
-    pathname: '/*',
-    path: '/*',
-    href: 'https:///*'
-  }
-
-};
-
-for (const u in parseTests) {
-  let actual = url.parse(u);
-  const spaced = url.parse(`     \t  ${u}\n\t`);
-  let expected = Object.assign(new url.Url(), parseTests[u]);
-
-  Object.keys(actual).forEach(function(i) {
-    if (expected[i] === undefined && actual[i] === null) {
-      expected[i] = null;
-    }
-  });
-
-  assert.deepStrictEqual(
-    actual,
-    expected,
-    `expected ${inspect(expected)}, got ${inspect(actual)}`
-  );
-  assert.deepStrictEqual(
-    spaced,
-    expected,
-    `expected ${inspect(expected)}, got ${inspect(spaced)}`
-  );
-
-  expected = parseTests[u].href;
-  actual = url.format(parseTests[u]);
-
-  assert.strictEqual(actual, expected,
-                     'format(' + u + ') == ' + u + '\nactual:' + actual);
-}
-
-function createWithNoPrototype(properties = []) {
-  const noProto = Object.create(null);
-  properties.forEach((property) => {
-    noProto[property.key] = property.value;
-  });
-  return noProto;
-}
-
-function check(actual, expected) {
-  assert.notStrictEqual(Object.getPrototypeOf(actual), Object.prototype);
-  assert.deepStrictEqual(Object.keys(actual).sort(),
-                         Object.keys(expected).sort());
-  Object.keys(expected).forEach(function(key) {
-    assert.deepStrictEqual(actual[key], expected[key]);
-  });
-}
-
-const parseTestsWithQueryString = {
-  '/foo/bar?baz=quux#frag': {
-    href: '/foo/bar?baz=quux#frag',
-    hash: '#frag',
-    search: '?baz=quux',
-    query: createWithNoPrototype([{key: 'baz', value: 'quux'}]),
-    pathname: '/foo/bar',
-    path: '/foo/bar?baz=quux'
-  },
-  'http://example.com': {
-    href: 'http://example.com/',
-    protocol: 'http:',
-    slashes: true,
-    host: 'example.com',
-    hostname: 'example.com',
-    query: createWithNoPrototype(),
-    search: '',
-    pathname: '/',
-    path: '/'
-  },
-  '/example': {
-    protocol: null,
-    slashes: null,
-    auth: undefined,
-    host: null,
-    port: null,
-    hostname: null,
-    hash: null,
-    search: '',
-    query: createWithNoPrototype(),
-    pathname: '/example',
-    path: '/example',
-    href: '/example'
-  },
-  '/example?query=value': {
-    protocol: null,
-    slashes: null,
-    auth: undefined,
-    host: null,
-    port: null,
-    hostname: null,
-    hash: null,
-    search: '?query=value',
-    query: createWithNoPrototype([{ key: 'query', value: 'value' }]),
-    pathname: '/example',
-    path: '/example?query=value',
-    href: '/example?query=value'
-  }
-};
-for (const u in parseTestsWithQueryString) {
-  const actual = url.parse(u, true);
-  const expected = Object.assign(new url.Url(), parseTestsWithQueryString[u]);
-  for (const i in actual) {
-    if (actual[i] === null && expected[i] === undefined) {
-      expected[i] = null;
-    }
-  }
-
-  const properties = Object.keys(actual).sort();
-  assert.deepStrictEqual(properties, Object.keys(expected).sort());
-  properties.forEach((property) => {
-    if (property === 'query') {
-      check(actual[property], expected[property]);
-    } else {
-      assert.deepStrictEqual(actual[property], expected[property]);
-    }
-  });
-}
-
-// some extra formatting tests, just to verify
-// that it'll format slightly wonky content to a valid url.
-const formatTests = {
-  'http://example.com?': {
-    href: 'http://example.com/?',
-    protocol: 'http:',
-    slashes: true,
-    host: 'example.com',
-    hostname: 'example.com',
-    search: '?',
-    query: {},
-    pathname: '/'
-  },
-  'http://example.com?foo=bar#frag': {
-    href: 'http://example.com/?foo=bar#frag',
-    protocol: 'http:',
-    host: 'example.com',
-    hostname: 'example.com',
-    hash: '#frag',
-    search: '?foo=bar',
-    query: 'foo=bar',
-    pathname: '/'
-  },
-  'http://example.com?foo=@bar#frag': {
-    href: 'http://example.com/?foo=@bar#frag',
-    protocol: 'http:',
-    host: 'example.com',
-    hostname: 'example.com',
-    hash: '#frag',
-    search: '?foo=@bar',
-    query: 'foo=@bar',
-    pathname: '/'
-  },
-  'http://example.com?foo=/bar/#frag': {
-    href: 'http://example.com/?foo=/bar/#frag',
-    protocol: 'http:',
-    host: 'example.com',
-    hostname: 'example.com',
-    hash: '#frag',
-    search: '?foo=/bar/',
-    query: 'foo=/bar/',
-    pathname: '/'
-  },
-  'http://example.com?foo=?bar/#frag': {
-    href: 'http://example.com/?foo=?bar/#frag',
-    protocol: 'http:',
-    host: 'example.com',
-    hostname: 'example.com',
-    hash: '#frag',
-    search: '?foo=?bar/',
-    query: 'foo=?bar/',
-    pathname: '/'
-  },
-  'http://example.com#frag=?bar/#frag': {
-    href: 'http://example.com/#frag=?bar/#frag',
-    protocol: 'http:',
-    host: 'example.com',
-    hostname: 'example.com',
-    hash: '#frag=?bar/#frag',
-    pathname: '/'
-  },
-  'http://google.com" onload="alert(42)/': {
-    href: 'http://google.com/%22%20onload=%22alert(42)/',
-    protocol: 'http:',
-    host: 'google.com',
-    pathname: '/%22%20onload=%22alert(42)/'
-  },
-  'http://a.com/a/b/c?s#h': {
-    href: 'http://a.com/a/b/c?s#h',
-    protocol: 'http',
-    host: 'a.com',
-    pathname: 'a/b/c',
-    hash: 'h',
-    search: 's'
-  },
-  'xmpp:isaacschlueter@jabber.org': {
-    href: 'xmpp:isaacschlueter@jabber.org',
-    protocol: 'xmpp:',
-    host: 'jabber.org',
-    auth: 'isaacschlueter',
-    hostname: 'jabber.org'
-  },
-  'http://atpass:foo%40bar@127.0.0.1/': {
-    href: 'http://atpass:foo%40bar@127.0.0.1/',
-    auth: 'atpass:foo@bar',
-    hostname: '127.0.0.1',
-    protocol: 'http:',
-    pathname: '/'
-  },
-  'http://atslash%2F%40:%2F%40@foo/': {
-    href: 'http://atslash%2F%40:%2F%40@foo/',
-    auth: 'atslash/@:/@',
-    hostname: 'foo',
-    protocol: 'http:',
-    pathname: '/'
-  },
-  'svn+ssh://foo/bar': {
-    href: 'svn+ssh://foo/bar',
-    hostname: 'foo',
-    protocol: 'svn+ssh:',
-    pathname: '/bar',
-    slashes: true
-  },
-  'dash-test://foo/bar': {
-    href: 'dash-test://foo/bar',
-    hostname: 'foo',
-    protocol: 'dash-test:',
-    pathname: '/bar',
-    slashes: true
-  },
-  'dash-test:foo/bar': {
-    href: 'dash-test:foo/bar',
-    hostname: 'foo',
-    protocol: 'dash-test:',
-    pathname: '/bar'
-  },
-  'dot.test://foo/bar': {
-    href: 'dot.test://foo/bar',
-    hostname: 'foo',
-    protocol: 'dot.test:',
-    pathname: '/bar',
-    slashes: true
-  },
-  'dot.test:foo/bar': {
-    href: 'dot.test:foo/bar',
-    hostname: 'foo',
-    protocol: 'dot.test:',
-    pathname: '/bar'
-  },
-  // ipv6 support
-  'coap:u:p@[::1]:61616/.well-known/r?n=Temperature': {
-    href: 'coap:u:p@[::1]:61616/.well-known/r?n=Temperature',
-    protocol: 'coap:',
-    auth: 'u:p',
-    hostname: '::1',
-    port: '61616',
-    pathname: '/.well-known/r',
-    search: 'n=Temperature'
-  },
-  'coap:[fedc:ba98:7654:3210:fedc:ba98:7654:3210]:61616/s/stopButton': {
-    href: 'coap:[fedc:ba98:7654:3210:fedc:ba98:7654:3210]:61616/s/stopButton',
-    protocol: 'coap',
-    host: '[fedc:ba98:7654:3210:fedc:ba98:7654:3210]:61616',
-    pathname: '/s/stopButton'
-  },
-
-  // encode context-specific delimiters in path and query, but do not touch
-  // other non-delimiter chars like `%`.
-  // <https://github.com/joyent/node/issues/4082>
-
-  // `#`,`?` in path
-  '/path/to/%%23%3F+=&.txt?foo=theA1#bar': {
-    href: '/path/to/%%23%3F+=&.txt?foo=theA1#bar',
-    pathname: '/path/to/%#?+=&.txt',
-    query: {
-      foo: 'theA1'
-    },
-    hash: '#bar'
-  },
-
-  // `#`,`?` in path + `#` in query
-  '/path/to/%%23%3F+=&.txt?foo=the%231#bar': {
-    href: '/path/to/%%23%3F+=&.txt?foo=the%231#bar',
-    pathname: '/path/to/%#?+=&.txt',
-    query: {
-      foo: 'the#1'
-    },
-    hash: '#bar'
-  },
-
-  // `?` and `#` in path and search
-  'http://ex.com/foo%3F100%m%23r?abc=the%231?&foo=bar#frag': {
-    href: 'http://ex.com/foo%3F100%m%23r?abc=the%231?&foo=bar#frag',
-    protocol: 'http:',
-    hostname: 'ex.com',
-    hash: '#frag',
-    search: '?abc=the#1?&foo=bar',
-    pathname: '/foo?100%m#r',
-  },
-
-  // `?` and `#` in search only
-  'http://ex.com/fooA100%mBr?abc=the%231?&foo=bar#frag': {
-    href: 'http://ex.com/fooA100%mBr?abc=the%231?&foo=bar#frag',
-    protocol: 'http:',
-    hostname: 'ex.com',
-    hash: '#frag',
-    search: '?abc=the#1?&foo=bar',
-    pathname: '/fooA100%mBr',
-  },
-
-  // multiple `#` in search
-  'http://example.com/?foo=bar%231%232%233&abc=%234%23%235#frag': {
-    href: 'http://example.com/?foo=bar%231%232%233&abc=%234%23%235#frag',
-    protocol: 'http:',
-    slashes: true,
-    host: 'example.com',
-    hostname: 'example.com',
-    hash: '#frag',
-    search: '?foo=bar#1#2#3&abc=#4##5',
-    query: {},
-    pathname: '/'
-  },
-
-  // more than 255 characters in hostname which exceeds the limit
-  [`http://${'a'.repeat(255)}.com/node`]: {
-    href: 'http:///node',
-    protocol: 'http:',
-    slashes: true,
-    host: '',
-    hostname: '',
-    pathname: '/node',
-    path: '/node'
-  },
-
-   // greater than or equal to 63 characters after `.` in hostname
-  [`http://www.${'z'.repeat(63)}example.com/node`]: {
-    href: `http://www.${'z'.repeat(63)}example.com/node`,
-    protocol: 'http:',
-    slashes: true,
-    host: `www.${'z'.repeat(63)}example.com`,
-    hostname: `www.${'z'.repeat(63)}example.com`,
-    pathname: '/node',
-    path: '/node'
-  },
-
-  // https://github.com/nodejs/node/issues/3361
-  'file:///home/user': {
-    href: 'file:///home/user',
-    protocol: 'file',
-    pathname: '/home/user',
-    path: '/home/user'
-  }
-};
-for (const u in formatTests) {
-  const expect = formatTests[u].href;
-  delete formatTests[u].href;
-  const actual = url.format(u);
-  const actualObj = url.format(formatTests[u]);
-  assert.strictEqual(actual, expect,
-                     'wonky format(' + u + ') == ' + expect +
-                     '\nactual:' + actual);
-  assert.strictEqual(actualObj, expect,
-                     'wonky format(' + JSON.stringify(formatTests[u]) +
-                     ') == ' + expect +
-                     '\nactual: ' + actualObj);
-}
-
-/*
- [from, path, expected]
-*/
-const relativeTests = [
-  ['/foo/bar/baz', 'quux', '/foo/bar/quux'],
-  ['/foo/bar/baz', 'quux/asdf', '/foo/bar/quux/asdf'],
-  ['/foo/bar/baz', 'quux/baz', '/foo/bar/quux/baz'],
-  ['/foo/bar/baz', '../quux/baz', '/foo/quux/baz'],
-  ['/foo/bar/baz', '/bar', '/bar'],
-  ['/foo/bar/baz/', 'quux', '/foo/bar/baz/quux'],
-  ['/foo/bar/baz/', 'quux/baz', '/foo/bar/baz/quux/baz'],
-  ['/foo/bar/baz', '../../../../../../../../quux/baz', '/quux/baz'],
-  ['/foo/bar/baz', '../../../../../../../quux/baz', '/quux/baz'],
-  ['/foo', '.', '/'],
-  ['/foo', '..', '/'],
-  ['/foo/', '.', '/foo/'],
-  ['/foo/', '..', '/'],
-  ['/foo/bar', '.', '/foo/'],
-  ['/foo/bar', '..', '/'],
-  ['/foo/bar/', '.', '/foo/bar/'],
-  ['/foo/bar/', '..', '/foo/'],
-  ['foo/bar', '../../../baz', '../../baz'],
-  ['foo/bar/', '../../../baz', '../baz'],
-  ['http://example.com/b//c//d;p?q#blarg', 'https:#hash2', 'https:///#hash2'],
-  ['http://example.com/b//c//d;p?q#blarg',
-   'https:/p/a/t/h?s#hash2',
-   'https://p/a/t/h?s#hash2'],
-  ['http://example.com/b//c//d;p?q#blarg',
-   'https://u:p@h.com/p/a/t/h?s#hash2',
-   'https://u:p@h.com/p/a/t/h?s#hash2'],
-  ['http://example.com/b//c//d;p?q#blarg',
-   'https:/a/b/c/d',
-   'https://a/b/c/d'],
-  ['http://example.com/b//c//d;p?q#blarg',
-   'http:#hash2',
-   'http://example.com/b//c//d;p?q#hash2'],
-  ['http://example.com/b//c//d;p?q#blarg',
-   'http:/p/a/t/h?s#hash2',
-   'http://example.com/p/a/t/h?s#hash2'],
-  ['http://example.com/b//c//d;p?q#blarg',
-   'http://u:p@h.com/p/a/t/h?s#hash2',
-   'http://u:p@h.com/p/a/t/h?s#hash2'],
-  ['http://example.com/b//c//d;p?q#blarg',
-   'http:/a/b/c/d',
-   'http://example.com/a/b/c/d'],
-  ['/foo/bar/baz', '/../etc/passwd', '/etc/passwd'],
-  ['http://localhost', 'file:///Users/foo', 'file:///Users/foo'],
-  ['http://localhost', 'file://foo/Users', 'file://foo/Users']
-];
-relativeTests.forEach(function(relativeTest) {
-  const a = url.resolve(relativeTest[0], relativeTest[1]);
-  const e = relativeTest[2];
-  assert.strictEqual(a, e,
-                     'resolve(' + [relativeTest[0], relativeTest[1]] + ') == ' + e +
-               '\n  actual=' + a);
-});
-
-
-// https://github.com/joyent/node/issues/568
-[
-  undefined,
-  null,
-  true,
-  false,
-  0.0,
-  0,
-  [],
-  {}
-].forEach(function(val) {
-  assert.throws(function() { url.parse(val); }, TypeError);
-});
-
-
-//
-// Tests below taken from Chiron
-// http://code.google.com/p/chironjs/source/browse/trunk/src/test/http/url.js
-//
-// Copyright (c) 2002-2008 Kris Kowal <http://cixar.com/~kris.kowal>
-// used with permission under MIT License
-//
-// Changes marked with @isaacs
-
-const bases = [
-  'http://a/b/c/d;p?q',
-  'http://a/b/c/d;p?q=1/2',
-  'http://a/b/c/d;p=1/2?q',
-  'fred:///s//a/b/c',
-  'http:///s//a/b/c'
-];
-
-//[to, from, result]
-const relativeTests2 = [
-  // http://lists.w3.org/Archives/Public/uri/2004Feb/0114.html
-  ['../c', 'foo:a/b', 'foo:c'],
-  ['foo:.', 'foo:a', 'foo:'],
-  ['/foo/../../../bar', 'zz:abc', 'zz:/bar'],
-  ['/foo/../bar', 'zz:abc', 'zz:/bar'],
-  // @isaacs Disagree. Not how web browsers resolve this.
-  ['foo/../../../bar', 'zz:abc', 'zz:bar'],
-  // ['foo/../../../bar',  'zz:abc', 'zz:../../bar'], // @isaacs Added
-  ['foo/../bar', 'zz:abc', 'zz:bar'],
-  ['zz:.', 'zz:abc', 'zz:'],
-  ['/.', bases[0], 'http://a/'],
-  ['/.foo', bases[0], 'http://a/.foo'],
-  ['.foo', bases[0], 'http://a/b/c/.foo'],
-
-  // http://gbiv.com/protocols/uri/test/rel_examples1.html
-  // examples from RFC 2396
-  ['g:h', bases[0], 'g:h'],
-  ['g', bases[0], 'http://a/b/c/g'],
-  ['./g', bases[0], 'http://a/b/c/g'],
-  ['g/', bases[0], 'http://a/b/c/g/'],
-  ['/g', bases[0], 'http://a/g'],
-  ['//g', bases[0], 'http://g/'],
-  // changed with RFC 2396bis
-  //('?y', bases[0], 'http://a/b/c/d;p?y'],
-  ['?y', bases[0], 'http://a/b/c/d;p?y'],
-  ['g?y', bases[0], 'http://a/b/c/g?y'],
-  // changed with RFC 2396bis
-  //('#s', bases[0], CURRENT_DOC_URI + '#s'],
-  ['#s', bases[0], 'http://a/b/c/d;p?q#s'],
-  ['g#s', bases[0], 'http://a/b/c/g#s'],
-  ['g?y#s', bases[0], 'http://a/b/c/g?y#s'],
-  [';x', bases[0], 'http://a/b/c/;x'],
-  ['g;x', bases[0], 'http://a/b/c/g;x'],
-  ['g;x?y#s', bases[0], 'http://a/b/c/g;x?y#s'],
-  // changed with RFC 2396bis
-  //('', bases[0], CURRENT_DOC_URI],
-  ['', bases[0], 'http://a/b/c/d;p?q'],
-  ['.', bases[0], 'http://a/b/c/'],
-  ['./', bases[0], 'http://a/b/c/'],
-  ['..', bases[0], 'http://a/b/'],
-  ['../', bases[0], 'http://a/b/'],
-  ['../g', bases[0], 'http://a/b/g'],
-  ['../..', bases[0], 'http://a/'],
-  ['../../', bases[0], 'http://a/'],
-  ['../../g', bases[0], 'http://a/g'],
-  ['../../../g', bases[0], ('http://a/../g', 'http://a/g')],
-  ['../../../../g', bases[0], ('http://a/../../g', 'http://a/g')],
-  // changed with RFC 2396bis
-  //('/./g', bases[0], 'http://a/./g'],
-  ['/./g', bases[0], 'http://a/g'],
-  // changed with RFC 2396bis
-  //('/../g', bases[0], 'http://a/../g'],
-  ['/../g', bases[0], 'http://a/g'],
-  ['g.', bases[0], 'http://a/b/c/g.'],
-  ['.g', bases[0], 'http://a/b/c/.g'],
-  ['g..', bases[0], 'http://a/b/c/g..'],
-  ['..g', bases[0], 'http://a/b/c/..g'],
-  ['./../g', bases[0], 'http://a/b/g'],
-  ['./g/.', bases[0], 'http://a/b/c/g/'],
-  ['g/./h', bases[0], 'http://a/b/c/g/h'],
-  ['g/../h', bases[0], 'http://a/b/c/h'],
-  ['g;x=1/./y', bases[0], 'http://a/b/c/g;x=1/y'],
-  ['g;x=1/../y', bases[0], 'http://a/b/c/y'],
-  ['g?y/./x', bases[0], 'http://a/b/c/g?y/./x'],
-  ['g?y/../x', bases[0], 'http://a/b/c/g?y/../x'],
-  ['g#s/./x', bases[0], 'http://a/b/c/g#s/./x'],
-  ['g#s/../x', bases[0], 'http://a/b/c/g#s/../x'],
-  ['http:g', bases[0], ('http:g', 'http://a/b/c/g')],
-  ['http:', bases[0], ('http:', bases[0])],
-  // not sure where this one originated
-  ['/a/b/c/./../../g', bases[0], 'http://a/a/g'],
-
-  // http://gbiv.com/protocols/uri/test/rel_examples2.html
-  // slashes in base URI's query args
-  ['g', bases[1], 'http://a/b/c/g'],
-  ['./g', bases[1], 'http://a/b/c/g'],
-  ['g/', bases[1], 'http://a/b/c/g/'],
-  ['/g', bases[1], 'http://a/g'],
-  ['//g', bases[1], 'http://g/'],
-  // changed in RFC 2396bis
-  //('?y', bases[1], 'http://a/b/c/?y'],
-  ['?y', bases[1], 'http://a/b/c/d;p?y'],
-  ['g?y', bases[1], 'http://a/b/c/g?y'],
-  ['g?y/./x', bases[1], 'http://a/b/c/g?y/./x'],
-  ['g?y/../x', bases[1], 'http://a/b/c/g?y/../x'],
-  ['g#s', bases[1], 'http://a/b/c/g#s'],
-  ['g#s/./x', bases[1], 'http://a/b/c/g#s/./x'],
-  ['g#s/../x', bases[1], 'http://a/b/c/g#s/../x'],
-  ['./', bases[1], 'http://a/b/c/'],
-  ['../', bases[1], 'http://a/b/'],
-  ['../g', bases[1], 'http://a/b/g'],
-  ['../../', bases[1], 'http://a/'],
-  ['../../g', bases[1], 'http://a/g'],
-
-  // http://gbiv.com/protocols/uri/test/rel_examples3.html
-  // slashes in path params
-  // all of these changed in RFC 2396bis
-  ['g', bases[2], 'http://a/b/c/d;p=1/g'],
-  ['./g', bases[2], 'http://a/b/c/d;p=1/g'],
-  ['g/', bases[2], 'http://a/b/c/d;p=1/g/'],
-  ['g?y', bases[2], 'http://a/b/c/d;p=1/g?y'],
-  [';x', bases[2], 'http://a/b/c/d;p=1/;x'],
-  ['g;x', bases[2], 'http://a/b/c/d;p=1/g;x'],
-  ['g;x=1/./y', bases[2], 'http://a/b/c/d;p=1/g;x=1/y'],
-  ['g;x=1/../y', bases[2], 'http://a/b/c/d;p=1/y'],
-  ['./', bases[2], 'http://a/b/c/d;p=1/'],
-  ['../', bases[2], 'http://a/b/c/'],
-  ['../g', bases[2], 'http://a/b/c/g'],
-  ['../../', bases[2], 'http://a/b/'],
-  ['../../g', bases[2], 'http://a/b/g'],
-
-  // http://gbiv.com/protocols/uri/test/rel_examples4.html
-  // double and triple slash, unknown scheme
-  ['g:h', bases[3], 'g:h'],
-  ['g', bases[3], 'fred:///s//a/b/g'],
-  ['./g', bases[3], 'fred:///s//a/b/g'],
-  ['g/', bases[3], 'fred:///s//a/b/g/'],
-  ['/g', bases[3], 'fred:///g'],  // may change to fred:///s//a/g
-  ['//g', bases[3], 'fred://g'],   // may change to fred:///s//g
-  ['//g/x', bases[3], 'fred://g/x'], // may change to fred:///s//g/x
-  ['///g', bases[3], 'fred:///g'],
-  ['./', bases[3], 'fred:///s//a/b/'],
-  ['../', bases[3], 'fred:///s//a/'],
-  ['../g', bases[3], 'fred:///s//a/g'],
-
-  ['../../', bases[3], 'fred:///s//'],
-  ['../../g', bases[3], 'fred:///s//g'],
-  ['../../../g', bases[3], 'fred:///s/g'],
-  // may change to fred:///s//a/../../../g
-  ['../../../../g', bases[3], 'fred:///g'],
-
-  // http://gbiv.com/protocols/uri/test/rel_examples5.html
-  // double and triple slash, well-known scheme
-  ['g:h', bases[4], 'g:h'],
-  ['g', bases[4], 'http:///s//a/b/g'],
-  ['./g', bases[4], 'http:///s//a/b/g'],
-  ['g/', bases[4], 'http:///s//a/b/g/'],
-  ['/g', bases[4], 'http:///g'],  // may change to http:///s//a/g
-  ['//g', bases[4], 'http://g/'],   // may change to http:///s//g
-  ['//g/x', bases[4], 'http://g/x'], // may change to http:///s//g/x
-  ['///g', bases[4], 'http:///g'],
-  ['./', bases[4], 'http:///s//a/b/'],
-  ['../', bases[4], 'http:///s//a/'],
-  ['../g', bases[4], 'http:///s//a/g'],
-  ['../../', bases[4], 'http:///s//'],
-  ['../../g', bases[4], 'http:///s//g'],
-  // may change to http:///s//a/../../g
-  ['../../../g', bases[4], 'http:///s/g'],
-  // may change to http:///s//a/../../../g
-  ['../../../../g', bases[4], 'http:///g'],
-
-  // from Dan Connelly's tests in http://www.w3.org/2000/10/swap/uripath.py
-  ['bar:abc', 'foo:xyz', 'bar:abc'],
-  ['../abc', 'http://example/x/y/z', 'http://example/x/abc'],
-  ['http://example/x/abc', 'http://example2/x/y/z', 'http://example/x/abc'],
-  ['../r', 'http://ex/x/y/z', 'http://ex/x/r'],
-  ['q/r', 'http://ex/x/y', 'http://ex/x/q/r'],
-  ['q/r#s', 'http://ex/x/y', 'http://ex/x/q/r#s'],
-  ['q/r#s/t', 'http://ex/x/y', 'http://ex/x/q/r#s/t'],
-  ['ftp://ex/x/q/r', 'http://ex/x/y', 'ftp://ex/x/q/r'],
-  ['', 'http://ex/x/y', 'http://ex/x/y'],
-  ['', 'http://ex/x/y/', 'http://ex/x/y/'],
-  ['', 'http://ex/x/y/pdq', 'http://ex/x/y/pdq'],
-  ['z/', 'http://ex/x/y/', 'http://ex/x/y/z/'],
-  ['#Animal',
-   'file:/swap/test/animal.rdf',
-   'file:/swap/test/animal.rdf#Animal'],
-  ['../abc', 'file:/e/x/y/z', 'file:/e/x/abc'],
-  ['/example/x/abc', 'file:/example2/x/y/z', 'file:/example/x/abc'],
-  ['../r', 'file:/ex/x/y/z', 'file:/ex/x/r'],
-  ['/r', 'file:/ex/x/y/z', 'file:/r'],
-  ['q/r', 'file:/ex/x/y', 'file:/ex/x/q/r'],
-  ['q/r#s', 'file:/ex/x/y', 'file:/ex/x/q/r#s'],
-  ['q/r#', 'file:/ex/x/y', 'file:/ex/x/q/r#'],
-  ['q/r#s/t', 'file:/ex/x/y', 'file:/ex/x/q/r#s/t'],
-  ['ftp://ex/x/q/r', 'file:/ex/x/y', 'ftp://ex/x/q/r'],
-  ['', 'file:/ex/x/y', 'file:/ex/x/y'],
-  ['', 'file:/ex/x/y/', 'file:/ex/x/y/'],
-  ['', 'file:/ex/x/y/pdq', 'file:/ex/x/y/pdq'],
-  ['z/', 'file:/ex/x/y/', 'file:/ex/x/y/z/'],
-  ['file://meetings.example.com/cal#m1',
-   'file:/devel/WWW/2000/10/swap/test/reluri-1.n3',
-   'file://meetings.example.com/cal#m1'],
-  ['file://meetings.example.com/cal#m1',
-   'file:/home/connolly/w3ccvs/WWW/2000/10/swap/test/reluri-1.n3',
-   'file://meetings.example.com/cal#m1'],
-  ['./#blort', 'file:/some/dir/foo', 'file:/some/dir/#blort'],
-  ['./#', 'file:/some/dir/foo', 'file:/some/dir/#'],
-  // Ryan Lee
-  ['./', 'http://example/x/abc.efg', 'http://example/x/'],
-
-
-  // Graham Klyne's tests
-  // http://www.ninebynine.org/Software/HaskellUtils/Network/UriTest.xls
-  // 01-31 are from Connelly's cases
-
-  // 32-49
-  ['./q:r', 'http://ex/x/y', 'http://ex/x/q:r'],
-  ['./p=q:r', 'http://ex/x/y', 'http://ex/x/p=q:r'],
-  ['?pp/rr', 'http://ex/x/y?pp/qq', 'http://ex/x/y?pp/rr'],
-  ['y/z', 'http://ex/x/y?pp/qq', 'http://ex/x/y/z'],
-  ['local/qual@domain.org#frag',
-   'mailto:local',
-   'mailto:local/qual@domain.org#frag'],
-  ['more/qual2@domain2.org#frag',
-   'mailto:local/qual1@domain1.org',
-   'mailto:local/more/qual2@domain2.org#frag'],
-  ['y?q', 'http://ex/x/y?q', 'http://ex/x/y?q'],
-  ['/x/y?q', 'http://ex?p', 'http://ex/x/y?q'],
-  ['c/d', 'foo:a/b', 'foo:a/c/d'],
-  ['/c/d', 'foo:a/b', 'foo:/c/d'],
-  ['', 'foo:a/b?c#d', 'foo:a/b?c'],
-  ['b/c', 'foo:a', 'foo:b/c'],
-  ['../b/c', 'foo:/a/y/z', 'foo:/a/b/c'],
-  ['./b/c', 'foo:a', 'foo:b/c'],
-  ['/./b/c', 'foo:a', 'foo:/b/c'],
-  ['../../d', 'foo://a//b/c', 'foo://a/d'],
-  ['.', 'foo:a', 'foo:'],
-  ['..', 'foo:a', 'foo:'],
-
-  // 50-57[cf. TimBL comments --
-  //  http://lists.w3.org/Archives/Public/uri/2003Feb/0028.html,
-  //  http://lists.w3.org/Archives/Public/uri/2003Jan/0008.html)
-  ['abc', 'http://example/x/y%2Fz', 'http://example/x/abc'],
-  ['../../x%2Fabc', 'http://example/a/x/y/z', 'http://example/a/x%2Fabc'],
-  ['../x%2Fabc', 'http://example/a/x/y%2Fz', 'http://example/a/x%2Fabc'],
-  ['abc', 'http://example/x%2Fy/z', 'http://example/x%2Fy/abc'],
-  ['q%3Ar', 'http://ex/x/y', 'http://ex/x/q%3Ar'],
-  ['/x%2Fabc', 'http://example/x/y%2Fz', 'http://example/x%2Fabc'],
-  ['/x%2Fabc', 'http://example/x/y/z', 'http://example/x%2Fabc'],
-  ['/x%2Fabc', 'http://example/x/y%2Fz', 'http://example/x%2Fabc'],
-
-  // 70-77
-  ['local2@domain2', 'mailto:local1@domain1?query1', 'mailto:local2@domain2'],
-  ['local2@domain2?query2',
-   'mailto:local1@domain1',
-   'mailto:local2@domain2?query2'],
-  ['local2@domain2?query2',
-   'mailto:local1@domain1?query1',
-   'mailto:local2@domain2?query2'],
-  ['?query2', 'mailto:local@domain?query1', 'mailto:local@domain?query2'],
-  ['local@domain?query2', 'mailto:?query1', 'mailto:local@domain?query2'],
-  ['?query2', 'mailto:local@domain?query1', 'mailto:local@domain?query2'],
-  ['http://example/a/b?c/../d', 'foo:bar', 'http://example/a/b?c/../d'],
-  ['http://example/a/b#c/../d', 'foo:bar', 'http://example/a/b#c/../d'],
-
-  // 82-88
-  // @isaacs Disagree. Not how browsers do it.
-  // ['http:this', 'http://example.org/base/uri', 'http:this'],
-  // @isaacs Added
-  ['http:this', 'http://example.org/base/uri', 'http://example.org/base/this'],
-  ['http:this', 'http:base', 'http:this'],
-  ['.//g', 'f:/a', 'f://g'],
-  ['b/c//d/e', 'f://example.org/base/a', 'f://example.org/base/b/c//d/e'],
-  ['m2@example.ord/c2@example.org',
-   'mid:m@example.ord/c@example.org',
-   'mid:m@example.ord/m2@example.ord/c2@example.org'],
-  ['mini1.xml',
-   'file:///C:/DEV/Haskell/lib/HXmlToolbox-3.01/examples/',
-   'file:///C:/DEV/Haskell/lib/HXmlToolbox-3.01/examples/mini1.xml'],
-  ['../b/c', 'foo:a/y/z', 'foo:a/b/c'],
-
-  //changeing auth
-  ['http://diff:auth@www.example.com',
-   'http://asdf:qwer@www.example.com',
-   'http://diff:auth@www.example.com/'],
-
-  // changing port
-  ['https://example.com:81/',
-   'https://example.com:82/',
-   'https://example.com:81/'],
-
-  // https://github.com/nodejs/node/issues/1435
-  ['https://another.host.com/',
-   'https://user:password@example.org/',
-   'https://another.host.com/'],
-  ['//another.host.com/',
-   'https://user:password@example.org/',
-   'https://another.host.com/'],
-  ['http://another.host.com/',
-   'https://user:password@example.org/',
-   'http://another.host.com/'],
-  ['mailto:another.host.com',
-   'mailto:user@example.org',
-   'mailto:another.host.com'],
-  ['https://example.com/foo',
-   'https://user:password@example.com',
-   'https://user:password@example.com/foo'],
-];
-relativeTests2.forEach(function(relativeTest) {
-  const a = url.resolve(relativeTest[1], relativeTest[0]);
-  const e = url.format(relativeTest[2]);
-  assert.strictEqual(a, e,
-                     'resolve(' + [relativeTest[1], relativeTest[0]] + ') == ' + e +
-               '\n  actual=' + a);
-});
-
-//if format and parse are inverse operations then
-//resolveObject(parse(x), y) == parse(resolve(x, y))
-
-//format: [from, path, expected]
-relativeTests.forEach(function(relativeTest) {
-  let actual = url.resolveObject(url.parse(relativeTest[0]), relativeTest[1]);
-  let expected = url.parse(relativeTest[2]);
-
-
-  assert.deepStrictEqual(actual, expected);
-
-  expected = relativeTest[2];
-  actual = url.format(actual);
-
-  assert.strictEqual(actual, expected,
-                     'format(' + actual + ') == ' + expected + '\nactual:' + actual);
-});
-
-//format: [to, from, result]
-// the test: ['.//g', 'f:/a', 'f://g'] is a fundamental problem
-// url.parse('f:/a') does not have a host
-// url.resolve('f:/a', './/g') does not have a host because you have moved
-// down to the g directory.  i.e. f:     //g, however when this url is parsed
-// f:// will indicate that the host is g which is not the case.
-// it is unclear to me how to keep this information from being lost
-// it may be that a pathname of ////g should collapse to /g but this seems
-// to be a lot of work for an edge case.  Right now I remove the test
-if (relativeTests2[181][0] === './/g' &&
-    relativeTests2[181][1] === 'f:/a' &&
-    relativeTests2[181][2] === 'f://g') {
-  relativeTests2.splice(181, 1);
-}
-relativeTests2.forEach(function(relativeTest) {
-  let actual = url.resolveObject(url.parse(relativeTest[1]), relativeTest[0]);
-  let expected = url.parse(relativeTest[2]);
-
-  assert.deepStrictEqual(
-    actual,
-    expected,
-    `expected ${inspect(expected)} but got ${inspect(actual)}`
-  );
-
-  expected = url.format(relativeTest[2]);
-  actual = url.format(actual);
-
-  assert.strictEqual(actual, expected,
-                     'format(' + relativeTest[1] + ') == ' + expected +
-               '\nactual:' + actual);
-});
-
-
-// https://github.com/nodejs/node/pull/1036
-const throws = [
-  undefined,
-  null,
-  true,
-  false,
-  0,
-  function() {}
-];
-for (let i = 0; i < throws.length; i++) {
-  assert.throws(function() { url.format(throws[i]); }, TypeError);
-}
-assert.strictEqual(url.format(''), '');
-assert.strictEqual(url.format({}), '');