Merge branch 'denoland:main' into main

5 files changed, 707 insertions, 1 deletions

diff --git a/tests/node_compat/test/parallel/package.json b/tests/node_compat/test/parallel/package.json
deleted file mode 100644
index 0967ef424..000000000
--- a/tests/node_compat/test/parallel/package.json
+++ /dev/null
@@ -1 +0,0 @@
-{}
diff --git a/tests/node_compat/test/parallel/test-child-process-ipc-next-tick.js b/tests/node_compat/test/parallel/test-child-process-ipc-next-tick.js
new file mode 100644
index 000000000..f511d2500
--- /dev/null
+++ b/tests/node_compat/test/parallel/test-child-process-ipc-next-tick.js
@@ -0,0 +1,46 @@
+// deno-fmt-ignore-file
+// deno-lint-ignore-file
+
+// Copyright Joyent and Node contributors. All rights reserved. MIT license.
+// Taken from Node 18.12.1
+// This file is automatically generated by `tests/node_compat/runner/setup.ts`. Do not modify this file manually.
+
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+const cp = require('child_process');
+const NUM_MESSAGES = 10;
+const values = [];
+
+for (let i = 0; i < NUM_MESSAGES; ++i) {
+  values[i] = i;
+}
+
+if (process.argv[2] === 'child') {
+  const received = values.map(() => { return false; });
+
+  process.on('uncaughtException', common.mustCall((err) => {
+    received[err] = true;
+    const done = received.every((element) => { return element === true; });
+
+    if (done)
+      process.disconnect();
+  }, NUM_MESSAGES));
+
+  process.on('message', (msg) => {
+    // If messages are handled synchronously, throwing should break the IPC
+    // message processing.
+    throw msg;
+  });
+
+  process.send('ready');
+} else {
+  const child = cp.fork(__filename, ['child']);
+
+  child.on('message', common.mustCall((msg) => {
+    assert.strictEqual(msg, 'ready');
+    values.forEach((value) => {
+      child.send(value);
+    });
+  }));
+}
diff --git a/tests/node_compat/test/parallel/test-net-autoselectfamily.js b/tests/node_compat/test/parallel/test-net-autoselectfamily.js
new file mode 100644
index 000000000..3b520e6c8
--- /dev/null
+++ b/tests/node_compat/test/parallel/test-net-autoselectfamily.js
@@ -0,0 +1,312 @@
+// deno-fmt-ignore-file
+// deno-lint-ignore-file
+
+// Copyright Joyent and Node contributors. All rights reserved. MIT license.
+// Taken from Node 18.12.1
+// This file is automatically generated by `tests/node_compat/runner/setup.ts`. Do not modify this file manually.
+
+'use strict';
+
+const common = require('../common');
+const { parseDNSPacket, writeDNSPacket } = require('../common/dns');
+
+const assert = require('assert');
+const dgram = require('dgram');
+const { Resolver } = require('dns');
+const { createConnection, createServer } = require('net');
+
+// Test that happy eyeballs algorithm is properly implemented.
+
+// Purposely not using setDefaultAutoSelectFamilyAttemptTimeout here to test the
+// parameter is correctly used in options.
+//
+// Some of the machines in the CI need more time to establish connection
+const autoSelectFamilyAttemptTimeout = common.defaultAutoSelectFamilyAttemptTimeout;
+
+function _lookup(resolver, hostname, options, cb) {
+  resolver.resolve(hostname, 'ANY', (err, replies) => {
+    assert.notStrictEqual(options.family, 4);
+
+    if (err) {
+      return cb(err);
+    }
+
+    const hosts = replies
+      .map((r) => ({ address: r.address, family: r.type === 'AAAA' ? 6 : 4 }))
+      .sort((a, b) => b.family - a.family);
+
+    if (options.all === true) {
+      return cb(null, hosts);
+    }
+
+    return cb(null, hosts[0].address, hosts[0].family);
+  });
+}
+
+function createDnsServer(ipv6Addrs, ipv4Addrs, cb) {
+  if (!Array.isArray(ipv6Addrs)) {
+    ipv6Addrs = [ipv6Addrs];
+  }
+
+  if (!Array.isArray(ipv4Addrs)) {
+    ipv4Addrs = [ipv4Addrs];
+  }
+
+  // Create a DNS server which replies with a AAAA and a A record for the same host
+  const socket = dgram.createSocket('udp4');
+
+  // TODO(kt3k): We use common.mustCallAtLeast instead of common.mustCall
+  // because Deno sends multiple requests to the DNS server.
+  // This can be addressed if Deno.resolveDns supports ANY record type.
+  // See https://github.com/denoland/deno/issues/14492
+  socket.on('message', common.mustCallAtLeast((msg, { address, port }) => {
+    const parsed = parseDNSPacket(msg);
+    const domain = parsed.questions[0].domain;
+    assert.strictEqual(domain, 'example.org');
+
+    socket.send(writeDNSPacket({
+      id: parsed.id,
+      questions: parsed.questions,
+      answers: [
+        ...ipv6Addrs.map((address) => ({ type: 'AAAA', address, ttl: 123, domain: 'example.org' })),
+        ...ipv4Addrs.map((address) => ({ type: 'A', address, ttl: 123, domain: 'example.org' })),
+      ]
+    }), port, address);
+  }));
+
+  socket.bind(0, () => {
+    const resolver = new Resolver();
+    resolver.setServers([`127.0.0.1:${socket.address().port}`]);
+
+    cb({ dnsServer: socket, lookup: _lookup.bind(null, resolver) });
+  });
+}
+
+// Test that IPV4 is reached if IPV6 is not reachable
+{
+  createDnsServer('::1', '127.0.0.1', common.mustCall(function({ dnsServer, lookup }) {
+    const ipv4Server = createServer((socket) => {
+      socket.on('data', common.mustCall(() => {
+        socket.write('response-ipv4');
+        socket.end();
+      }));
+    });
+
+    ipv4Server.listen(0, '127.0.0.1', common.mustCall(() => {
+      const port = ipv4Server.address().port;
+
+      const connection = createConnection({
+        host: 'example.org',
+        port: port,
+        lookup,
+        autoSelectFamily: true,
+        autoSelectFamilyAttemptTimeout,
+      });
+
+      let response = '';
+      connection.setEncoding('utf-8');
+
+      connection.on('ready', common.mustCall(() => {
+        assert.deepStrictEqual(connection.autoSelectFamilyAttemptedAddresses, [`::1:${port}`, `127.0.0.1:${port}`]);
+      }));
+
+      connection.on('data', (chunk) => {
+        response += chunk;
+      });
+
+      connection.on('end', common.mustCall(() => {
+        assert.strictEqual(response, 'response-ipv4');
+        ipv4Server.close();
+        dnsServer.close();
+      }));
+
+      connection.write('request');
+    }));
+  }));
+}
+
+// Test that only the last successful connection is established.
+{
+  createDnsServer(
+    ['2606:4700::6810:85e5', '2606:4700::6810:84e5', "::1"],
+    // TODO(kt3k): Comment out ipv4 addresses to make the test pass faster.
+    // Enable this when Deno.connect() call becomes cancellable.
+    // See https://github.com/denoland/deno/issues/26819
+    // ['104.20.22.46', '104.20.23.46', '127.0.0.1'],
+    ['127.0.0.1'],
+    common.mustCall(function({ dnsServer, lookup }) {
+      const ipv4Server = createServer((socket) => {
+        socket.on('data', common.mustCall(() => {
+          socket.write('response-ipv4');
+          socket.end();
+        }));
+      });
+
+      ipv4Server.listen(0, '127.0.0.1', common.mustCall(() => {
+        const port = ipv4Server.address().port;
+
+        const connection = createConnection({
+          host: 'example.org',
+          port: port,
+          lookup,
+          autoSelectFamily: true,
+          autoSelectFamilyAttemptTimeout,
+        });
+
+        let response = '';
+        connection.setEncoding('utf-8');
+
+        connection.on('ready', common.mustCall(() => {
+          assert.deepStrictEqual(
+            connection.autoSelectFamilyAttemptedAddresses,
+            [
+              `2606:4700::6810:85e5:${port}`,
+              `104.20.22.46:${port}`,
+              `2606:4700::6810:84e5:${port}`,
+              `104.20.23.46:${port}`,
+              `::1:${port}`,
+              `127.0.0.1:${port}`,
+            ]
+          );
+        }));
+
+        connection.on('data', (chunk) => {
+          response += chunk;
+        });
+
+        connection.on('end', common.mustCall(() => {
+          assert.strictEqual(response, 'response-ipv4');
+          ipv4Server.close();
+          dnsServer.close();
+        }));
+
+        connection.write('request');
+      }));
+    })
+  );
+}
+
+// Test that IPV4 is NOT reached if IPV6 is reachable
+if (common.hasIPv6) {
+  createDnsServer('::1', '127.0.0.1', common.mustCall(function({ dnsServer, lookup }) {
+    const ipv4Server = createServer((socket) => {
+      socket.on('data', common.mustNotCall(() => {
+        socket.write('response-ipv4');
+        socket.end();
+      }));
+    });
+
+    const ipv6Server = createServer((socket) => {
+      socket.on('data', common.mustCall(() => {
+        socket.write('response-ipv6');
+        socket.end();
+      }));
+    });
+
+    ipv4Server.listen(0, '127.0.0.1', common.mustCall(() => {
+      const port = ipv4Server.address().port;
+
+      ipv6Server.listen(port, '::1', common.mustCall(() => {
+        const connection = createConnection({
+          host: 'example.org',
+          port,
+          lookup,
+          autoSelectFamily: true,
+          autoSelectFamilyAttemptTimeout,
+        });
+
+        let response = '';
+        connection.setEncoding('utf-8');
+
+        connection.on('ready', common.mustCall(() => {
+          assert.deepStrictEqual(connection.autoSelectFamilyAttemptedAddresses, [`::1:${port}`]);
+        }));
+
+        connection.on('data', (chunk) => {
+          response += chunk;
+        });
+
+        connection.on('end', common.mustCall(() => {
+          assert.strictEqual(response, 'response-ipv6');
+          ipv4Server.close();
+          ipv6Server.close();
+          dnsServer.close();
+        }));
+
+        connection.write('request');
+      }));
+    }));
+  }));
+}
+
+// Test that when all errors are returned when no connections succeeded
+{
+  createDnsServer('::1', '127.0.0.1', common.mustCall(function({ dnsServer, lookup }) {
+    const connection = createConnection({
+      host: 'example.org',
+      port: 10,
+      lookup,
+      autoSelectFamily: true,
+      autoSelectFamilyAttemptTimeout,
+    });
+
+    connection.on('ready', common.mustNotCall());
+    connection.on('error', common.mustCall((error) => {
+      assert.deepStrictEqual(connection.autoSelectFamilyAttemptedAddresses, ['::1:10', '127.0.0.1:10']);
+      assert.strictEqual(error.constructor.name, 'AggregateError');
+      assert.strictEqual(error.errors.length, 2);
+
+      const errors = error.errors.map((e) => e.message);
+      assert.ok(errors.includes('connect ECONNREFUSED 127.0.0.1:10'));
+
+      if (common.hasIPv6) {
+        assert.ok(errors.includes('connect ECONNREFUSED ::1:10'));
+      }
+
+      dnsServer.close();
+    }));
+  }));
+}
+
+// Test that the option can be disabled
+{
+  createDnsServer('::1', '127.0.0.1', common.mustCall(function({ dnsServer, lookup }) {
+    const ipv4Server = createServer((socket) => {
+      socket.on('data', common.mustCall(() => {
+        socket.write('response-ipv4');
+        socket.end();
+      }));
+    });
+
+    ipv4Server.listen(0, '127.0.0.1', common.mustCall(() => {
+      const port = ipv4Server.address().port;
+
+      const connection = createConnection({
+        host: 'example.org',
+        port,
+        lookup,
+        autoSelectFamily: false,
+      });
+
+      connection.on('ready', common.mustNotCall());
+      connection.on('error', common.mustCall((error) => {
+        assert.strictEqual(connection.autoSelectFamilyAttemptedAddresses, undefined);
+
+        if (common.hasIPv6) {
+          assert.strictEqual(error.code, 'ECONNREFUSED');
+          assert.strictEqual(error.message, `connect ECONNREFUSED ::1:${port}`);
+        } else if (error.code === 'EAFNOSUPPORT') {
+          assert.strictEqual(error.message, `connect EAFNOSUPPORT ::1:${port} - Local (undefined:undefined)`);
+        } else if (error.code === 'EUNATCH') {
+          assert.strictEqual(error.message, `connect EUNATCH ::1:${port} - Local (:::0)`);
+        } else {
+          assert.strictEqual(error.code, 'EADDRNOTAVAIL');
+          assert.strictEqual(error.message, `connect EADDRNOTAVAIL ::1:${port} - Local (:::0)`);
+        }
+
+        ipv4Server.close();
+        dnsServer.close();
+      }));
+    }));
+  }));
+}
diff --git a/tests/node_compat/test/parallel/test-net-socket-setnodelay.js b/tests/node_compat/test/parallel/test-net-socket-setnodelay.js
new file mode 100644
index 000000000..3d11b8452
--- /dev/null
+++ b/tests/node_compat/test/parallel/test-net-socket-setnodelay.js
@@ -0,0 +1,63 @@
+// deno-fmt-ignore-file
+// deno-lint-ignore-file
+
+// Copyright Joyent and Node contributors. All rights reserved. MIT license.
+// Taken from Node 18.12.1
+// This file is automatically generated by `tests/node_compat/runner/setup.ts`. Do not modify this file manually.
+
+'use strict';
+
+const common = require('../common');
+const assert = require('assert');
+const net = require('net');
+
+const truthyValues = [true, 1, 'true', {}, []];
+const falseyValues = [false, 0, ''];
+const genSetNoDelay = (desiredArg) => (enable) => {
+  assert.strictEqual(enable, desiredArg);
+};
+
+// setNoDelay should default to true
+let socket = new net.Socket({
+  handle: {
+    setNoDelay: common.mustCall(genSetNoDelay(true)),
+    readStart() {}
+  }
+});
+socket.setNoDelay();
+
+socket = new net.Socket({
+  handle: {
+    setNoDelay: common.mustCall(genSetNoDelay(true), 1),
+    readStart() {}
+  }
+});
+truthyValues.forEach((testVal) => socket.setNoDelay(testVal));
+
+socket = new net.Socket({
+  handle: {
+    setNoDelay: common.mustNotCall(),
+    readStart() {}
+  }
+});
+falseyValues.forEach((testVal) => socket.setNoDelay(testVal));
+
+socket = new net.Socket({
+  handle: {
+    setNoDelay: common.mustCall(3),
+    readStart() {}
+  }
+});
+truthyValues.concat(falseyValues).concat(truthyValues)
+  .forEach((testVal) => socket.setNoDelay(testVal));
+
+// If a handler doesn't have a setNoDelay function it shouldn't be called.
+// In the case below, if it is called an exception will be thrown
+socket = new net.Socket({
+  handle: {
+    setNoDelay: null,
+    readStart() {}
+  }
+});
+const returned = socket.setNoDelay(true);
+assert.ok(returned instanceof net.Socket);
diff --git a/tests/node_compat/test/parallel/test-os.js b/tests/node_compat/test/parallel/test-os.js
new file mode 100644
index 000000000..f7c24342a
--- /dev/null
+++ b/tests/node_compat/test/parallel/test-os.js
@@ -0,0 +1,286 @@
+// deno-fmt-ignore-file
+// deno-lint-ignore-file
+
+// Copyright Joyent and Node contributors. All rights reserved. MIT license.
+// Taken from Node 18.12.1
+// This file is automatically generated by `tests/node_compat/runner/setup.ts`. Do not modify this file manually.
+
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+const os = require('os');
+const path = require('path');
+const { inspect } = require('util');
+
+const is = {
+  number: (value, key) => {
+    assert(!Number.isNaN(value), `${key} should not be NaN`);
+    assert.strictEqual(typeof value, 'number');
+  },
+  string: (value) => { assert.strictEqual(typeof value, 'string'); },
+  array: (value) => { assert.ok(Array.isArray(value)); },
+  object: (value) => {
+    assert.strictEqual(typeof value, 'object');
+    assert.notStrictEqual(value, null);
+  }
+};
+
+process.env.TMPDIR = '/tmpdir';
+process.env.TMP = '/tmp';
+process.env.TEMP = '/temp';
+if (common.isWindows) {
+  assert.strictEqual(os.tmpdir(), '/temp');
+  process.env.TEMP = '';
+  assert.strictEqual(os.tmpdir(), '/tmp');
+  process.env.TMP = '';
+  const expected = `${process.env.SystemRoot || process.env.windir}\\temp`;
+  assert.strictEqual(os.tmpdir(), expected);
+  process.env.TEMP = '\\temp\\';
+  assert.strictEqual(os.tmpdir(), '\\temp');
+  process.env.TEMP = '\\tmpdir/';
+  assert.strictEqual(os.tmpdir(), '\\tmpdir/');
+  process.env.TEMP = '\\';
+  assert.strictEqual(os.tmpdir(), '\\');
+  process.env.TEMP = 'C:\\';
+  assert.strictEqual(os.tmpdir(), 'C:\\');
+} else {
+  assert.strictEqual(os.tmpdir(), '/tmpdir');
+  process.env.TMPDIR = '';
+  assert.strictEqual(os.tmpdir(), '/tmp');
+  process.env.TMP = '';
+  assert.strictEqual(os.tmpdir(), '/temp');
+  process.env.TEMP = '';
+  assert.strictEqual(os.tmpdir(), '/tmp');
+  process.env.TMPDIR = '/tmpdir/';
+  assert.strictEqual(os.tmpdir(), '/tmpdir');
+  process.env.TMPDIR = '/tmpdir\\';
+  assert.strictEqual(os.tmpdir(), '/tmpdir\\');
+  process.env.TMPDIR = '/';
+  assert.strictEqual(os.tmpdir(), '/');
+}
+
+const endianness = os.endianness();
+is.string(endianness);
+assert.match(endianness, /[BL]E/);
+
+const hostname = os.hostname();
+is.string(hostname);
+assert.ok(hostname.length > 0);
+
+// IBMi process priority is different.
+if (!common.isIBMi) {
+  const DUMMY_PRIORITY = 10;
+  os.setPriority(DUMMY_PRIORITY);
+  const priority = os.getPriority();
+  is.number(priority);
+  assert.strictEqual(priority, DUMMY_PRIORITY);
+}
+
+// On IBMi, os.uptime() returns 'undefined'
+if (!common.isIBMi) {
+  const uptime = os.uptime();
+  is.number(uptime);
+  assert.ok(uptime > 0);
+}
+
+const cpus = os.cpus();
+is.array(cpus);
+assert.ok(cpus.length > 0);
+for (const cpu of cpus) {
+  assert.strictEqual(typeof cpu.model, 'string');
+  assert.strictEqual(typeof cpu.speed, 'number');
+  assert.strictEqual(typeof cpu.times.user, 'number');
+  assert.strictEqual(typeof cpu.times.nice, 'number');
+  assert.strictEqual(typeof cpu.times.sys, 'number');
+  assert.strictEqual(typeof cpu.times.idle, 'number');
+  assert.strictEqual(typeof cpu.times.irq, 'number');
+}
+
+const type = os.type();
+is.string(type);
+assert.ok(type.length > 0);
+
+const release = os.release();
+is.string(release);
+assert.ok(release.length > 0);
+// TODO: Check format on more than just AIX
+if (common.isAIX)
+  assert.match(release, /^\d+\.\d+$/);
+
+const platform = os.platform();
+is.string(platform);
+assert.ok(platform.length > 0);
+
+const arch = os.arch();
+is.string(arch);
+assert.ok(arch.length > 0);
+
+if (!common.isSunOS) {
+  // not implemented yet
+  assert.ok(os.loadavg().length > 0);
+  assert.ok(os.freemem() > 0);
+  assert.ok(os.totalmem() > 0);
+}
+
+const interfaces = os.networkInterfaces();
+switch (platform) {
+  case 'linux': {
+    const filter = (e) =>
+      e.address === '127.0.0.1' &&
+      e.netmask === '255.0.0.0';
+
+    const actual = interfaces.lo.filter(filter);
+    const expected = [{
+      address: '127.0.0.1',
+      netmask: '255.0.0.0',
+      family: 'IPv4',
+      mac: '00:00:00:00:00:00',
+      internal: true,
+      cidr: '127.0.0.1/8'
+    }];
+    assert.deepStrictEqual(actual, expected);
+    break;
+  }
+  case 'win32': {
+    const filter = (e) =>
+      e.address === '127.0.0.1';
+
+    const actual = interfaces['Loopback Pseudo-Interface 1'].filter(filter);
+    const expected = [{
+      address: '127.0.0.1',
+      netmask: '255.0.0.0',
+      family: 'IPv4',
+      mac: '00:00:00:00:00:00',
+      internal: true,
+      cidr: '127.0.0.1/8'
+    }];
+    assert.deepStrictEqual(actual, expected);
+    break;
+  }
+}
+const netmaskToCIDRSuffixMap = new Map(Object.entries({
+  '255.0.0.0': 8,
+  '255.255.255.0': 24,
+  'ffff:ffff:ffff:ffff::': 64,
+  'ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff': 128
+}));
+
+Object.values(interfaces)
+  .flat(Infinity)
+  .map((v) => ({ v, mask: netmaskToCIDRSuffixMap.get(v.netmask) }))
+  .forEach(({ v, mask }) => {
+    assert.ok('cidr' in v, `"cidr" prop not found in ${inspect(v)}`);
+    if (mask) {
+      assert.strictEqual(v.cidr, `${v.address}/${mask}`);
+    }
+  });
+
+const EOL = os.EOL;
+if (common.isWindows) {
+  assert.strictEqual(EOL, '\r\n');
+} else {
+  assert.strictEqual(EOL, '\n');
+}
+
+const home = os.homedir();
+is.string(home);
+assert.ok(home.includes(path.sep));
+
+const version = os.version();
+assert.strictEqual(typeof version, 'string');
+assert(version);
+
+if (common.isWindows && process.env.USERPROFILE) {
+  assert.strictEqual(home, process.env.USERPROFILE);
+  delete process.env.USERPROFILE;
+  assert.ok(os.homedir().includes(path.sep));
+  process.env.USERPROFILE = home;
+} else if (!common.isWindows && process.env.HOME) {
+  assert.strictEqual(home, process.env.HOME);
+  delete process.env.HOME;
+  assert.ok(os.homedir().includes(path.sep));
+  process.env.HOME = home;
+}
+
+const pwd = os.userInfo();
+is.object(pwd);
+const pwdBuf = os.userInfo({ encoding: 'buffer' });
+
+if (common.isWindows) {
+  assert.strictEqual(pwd.uid, -1);
+  assert.strictEqual(pwd.gid, -1);
+  assert.strictEqual(pwd.shell, null);
+  assert.strictEqual(pwdBuf.uid, -1);
+  assert.strictEqual(pwdBuf.gid, -1);
+  assert.strictEqual(pwdBuf.shell, null);
+} else {
+  is.number(pwd.uid);
+  is.number(pwd.gid);
+  assert.strictEqual(typeof pwd.shell, 'string');
+  // It's possible for /etc/passwd to leave the user's shell blank.
+  if (pwd.shell.length > 0) {
+    assert(pwd.shell.includes(path.sep));
+  }
+  assert.strictEqual(pwd.uid, pwdBuf.uid);
+  assert.strictEqual(pwd.gid, pwdBuf.gid);
+  assert.strictEqual(pwd.shell, pwdBuf.shell.toString('utf8'));
+}
+
+is.string(pwd.username);
+assert.ok(pwd.homedir.includes(path.sep));
+assert.strictEqual(pwd.username, pwdBuf.username.toString('utf8'));
+assert.strictEqual(pwd.homedir, pwdBuf.homedir.toString('utf8'));
+
+assert.strictEqual(`${os.hostname}`, os.hostname());
+assert.strictEqual(`${os.homedir}`, os.homedir());
+assert.strictEqual(`${os.release}`, os.release());
+assert.strictEqual(`${os.type}`, os.type());
+assert.strictEqual(`${os.endianness}`, os.endianness());
+assert.strictEqual(`${os.tmpdir}`, os.tmpdir());
+assert.strictEqual(`${os.arch}`, os.arch());
+assert.strictEqual(`${os.platform}`, os.platform());
+assert.strictEqual(`${os.version}`, os.version());
+assert.strictEqual(`${os.machine}`, os.machine());
+assert.strictEqual(+os.totalmem, os.totalmem());
+
+// Assert that the following values are coercible to numbers.
+// On IBMi, os.uptime() returns 'undefined'
+if (!common.isIBMi) {
+  is.number(+os.uptime, 'uptime');
+  is.number(os.uptime(), 'uptime');
+}
+
+is.number(+os.availableParallelism, 'availableParallelism');
+is.number(os.availableParallelism(), 'availableParallelism');
+is.number(+os.freemem, 'freemem');
+is.number(os.freemem(), 'freemem');
+
+const devNull = os.devNull;
+if (common.isWindows) {
+  assert.strictEqual(devNull, '\\\\.\\nul');
+} else {
+  assert.strictEqual(devNull, '/dev/null');
+}
+
+assert.ok(os.availableParallelism() > 0);