diff --git a/node/_tools/TODO.md b/node/_tools/TODO.md
index b4aabc7ff8d1..8e2c95404f03 100644
--- a/node/_tools/TODO.md
+++ b/node/_tools/TODO.md
@@ -3,7 +3,7 @@
 NOTE: This file should not be manually edited. Please edit `config.json` and run
 `deno task node:setup` instead.
 
-Total: 2810
+Total: 2793
 
 - [abort/test-abort-backtrace.js](https://github.com/nodejs/node/tree/v18.12.1/test/abort/test-abort-backtrace.js)
 - [abort/test-abort-fatal-error.js](https://github.com/nodejs/node/tree/v18.12.1/test/abort/test-abort-fatal-error.js)
@@ -266,21 +266,12 @@ Total: 2810
 - [parallel/test-child-process-advanced-serialization-largebuffer.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-advanced-serialization-largebuffer.js)
 - [parallel/test-child-process-advanced-serialization.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-advanced-serialization.js)
 - [parallel/test-child-process-bad-stdio.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-bad-stdio.js)
-- [parallel/test-child-process-can-write-to-stdout.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-can-write-to-stdout.js)
 - [parallel/test-child-process-constructor.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-constructor.js)
 - [parallel/test-child-process-cwd.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-cwd.js)
-- [parallel/test-child-process-default-options.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-default-options.js)
 - [parallel/test-child-process-detached.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-detached.js)
 - [parallel/test-child-process-disconnect.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-disconnect.js)
-- [parallel/test-child-process-double-pipe.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-double-pipe.js)
 - [parallel/test-child-process-env.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-env.js)
 - [parallel/test-child-process-exec-any-shells-windows.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-exec-any-shells-windows.js)
-- [parallel/test-child-process-exec-timeout-expire.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-exec-timeout-expire.js)
-- [parallel/test-child-process-exec-timeout-kill.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-exec-timeout-kill.js)
-- [parallel/test-child-process-exec-timeout-not-expired.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-exec-timeout-not-expired.js)
-- [parallel/test-child-process-execfile-maxbuf.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-execfile-maxbuf.js)
-- [parallel/test-child-process-exit-code.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-exit-code.js)
-- [parallel/test-child-process-flush-stdio.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-flush-stdio.js)
 - [parallel/test-child-process-fork-abort-signal.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-fork-abort-signal.js)
 - [parallel/test-child-process-fork-and-spawn.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-fork-and-spawn.js)
 - [parallel/test-child-process-fork-args.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-fork-args.js)
@@ -305,7 +296,6 @@ Total: 2810
 - [parallel/test-child-process-http-socket-leak.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-http-socket-leak.js)
 - [parallel/test-child-process-internal.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-internal.js)
 - [parallel/test-child-process-ipc-next-tick.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-ipc-next-tick.js)
-- [parallel/test-child-process-ipc.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-ipc.js)
 - [parallel/test-child-process-no-deprecation.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-no-deprecation.js)
 - [parallel/test-child-process-pipe-dataflow.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-pipe-dataflow.js)
 - [parallel/test-child-process-promisified.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-promisified.js)
@@ -317,13 +307,10 @@ Total: 2810
 - [parallel/test-child-process-send-type-error.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-send-type-error.js)
 - [parallel/test-child-process-send-utf8.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-send-utf8.js)
 - [parallel/test-child-process-server-close.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-server-close.js)
-- [parallel/test-child-process-set-blocking.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-set-blocking.js)
 - [parallel/test-child-process-silent.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-silent.js)
-- [parallel/test-child-process-spawn-args.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-spawn-args.js)
 - [parallel/test-child-process-spawn-argv0.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-spawn-argv0.js)
 - [parallel/test-child-process-spawn-controller.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-spawn-controller.js)
 - [parallel/test-child-process-spawn-error.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-spawn-error.js)
-- [parallel/test-child-process-spawn-event.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-spawn-event.js)
 - [parallel/test-child-process-spawn-shell.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-spawn-shell.js)
 - [parallel/test-child-process-spawn-timeout-kill-signal.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-spawn-timeout-kill-signal.js)
 - [parallel/test-child-process-spawn-typeerror.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-spawn-typeerror.js)
@@ -334,13 +321,10 @@ Total: 2810
 - [parallel/test-child-process-stdin-ipc.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-stdin-ipc.js)
 - [parallel/test-child-process-stdin.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-stdin.js)
 - [parallel/test-child-process-stdio-big-write-end.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-stdio-big-write-end.js)
-- [parallel/test-child-process-stdio-inherit.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-stdio-inherit.js)
 - [parallel/test-child-process-stdio-merge-stdouts-into-cat.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-stdio-merge-stdouts-into-cat.js)
 - [parallel/test-child-process-stdio-overlapped.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-stdio-overlapped.js)
 - [parallel/test-child-process-stdio-reuse-readable-stdio.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-stdio-reuse-readable-stdio.js)
 - [parallel/test-child-process-stdio.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-stdio.js)
-- [parallel/test-child-process-stdout-flush-exit.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-stdout-flush-exit.js)
-- [parallel/test-child-process-stdout-flush.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-stdout-flush.js)
 - [parallel/test-child-process-stdout-ipc.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-stdout-ipc.js)
 - [parallel/test-child-process-uid-gid.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-uid-gid.js)
 - [parallel/test-child-process-validate-stdio.js](https://github.com/nodejs/node/tree/v18.12.1/test/parallel/test-child-process-validate-stdio.js)
@@ -2670,7 +2654,6 @@ Total: 2810
 - [sequential/test-buffer-creation-regression.js](https://github.com/nodejs/node/tree/v18.12.1/test/sequential/test-buffer-creation-regression.js)
 - [sequential/test-child-process-emfile.js](https://github.com/nodejs/node/tree/v18.12.1/test/sequential/test-child-process-emfile.js)
 - [sequential/test-child-process-execsync.js](https://github.com/nodejs/node/tree/v18.12.1/test/sequential/test-child-process-execsync.js)
-- [sequential/test-child-process-exit.js](https://github.com/nodejs/node/tree/v18.12.1/test/sequential/test-child-process-exit.js)
 - [sequential/test-child-process-pass-fd.js](https://github.com/nodejs/node/tree/v18.12.1/test/sequential/test-child-process-pass-fd.js)
 - [sequential/test-cli-syntax-bad.js](https://github.com/nodejs/node/tree/v18.12.1/test/sequential/test-cli-syntax-bad.js)
 - [sequential/test-cli-syntax-file-not-found.js](https://github.com/nodejs/node/tree/v18.12.1/test/sequential/test-cli-syntax-file-not-found.js)
diff --git a/node/_tools/config.json b/node/_tools/config.json
index 2846aa1b50dc..9ac0c36a46d1 100644
--- a/node/_tools/config.json
+++ b/node/_tools/config.json
@@ -4,8 +4,11 @@
     "common": ["index.js", "internet.js", "tmpdir.js"],
     "fixtures": [
       "child-process-spawn-node.js",
+      "echo.js",
       "elipses.txt",
       "empty.txt",
+      "exit.js",
+      "print-chars.js",
       "x.txt"
     ],
     "internet": [
@@ -27,9 +30,18 @@
       "test-child-process-exec-kill-throws.js",
       "test-child-process-exec-maxbuf.js",
       "test-child-process-exec-std-encoding.js",
+      "test-child-process-exec-timeout-expire.js",
+      "test-child-process-exec-timeout-kill.js",
+      "test-child-process-exec-timeout-not-expired.js",
+      "test-child-process-execFile-promisified-abortController.js",
       "test-child-process-execfile.js",
       "test-child-process-execsync-maxbuf.js",
+      "test-child-process-exit-code.js",
+      "test-child-process-ipc.js",
       "test-child-process-spawnsync-env.js",
+      "test-child-process-stdio-inherit.js",
+      "test-child-process-stdout-flush-exit.js",
+      "test-child-process-stdout-flush.js",
       "test-console-instance.js",
       "test-crypto-hmac.js",
       "test-dgram-custom-lookup.js",
@@ -91,10 +103,14 @@
     "pummel": [
       "test-net-bytes-per-incoming-chunk-overhead.js",
       "test-net-write-callbacks.js"
+    ],
+    "sequential": [
+      "test-child-process-exit.js"
     ]
   },
   "tests": {
     "common": [
+      "child_process.js",
       "countdown.js",
       "dns.js",
       "duplexpair.js",
@@ -104,13 +120,16 @@
       "internet.js"
     ],
     "fixtures": [
+      "GH-1899-output.js",
       "a.js",
       "child-process-spawn-node.js",
+      "child_process_should_emit_error.js",
       "echo.js",
       "elipses.txt",
       "empty.txt",
       "exit.js",
       "loop.js",
+      "print-chars.js",
       "x.txt"
     ],
     "fixtures/keys": [
@@ -183,6 +202,9 @@
       "test-buffer-zero-fill-cli.js",
       "test-buffer-zero-fill-reset.js",
       "test-buffer-zero-fill.js",
+      "test-child-process-can-write-to-stdout.js",
+      "test-child-process-default-options.js",
+      "test-child-process-double-pipe.js",
       "test-child-process-exec-abortcontroller-promisified.js",
       "test-child-process-exec-cwd.js",
       "test-child-process-exec-encoding.js",
@@ -192,16 +214,29 @@
       "test-child-process-exec-maxbuf.js",
       "test-child-process-exec-std-encoding.js",
       "test-child-process-exec-stdout-stderr-data-string.js",
+      "test-child-process-exec-timeout-expire.js",
+      "test-child-process-exec-timeout-kill.js",
+      "test-child-process-exec-timeout-not-expired.js",
       "test-child-process-execFile-promisified-abortController.js",
+      "test-child-process-execfile-maxbuf.js",
       "test-child-process-execfile.js",
       "test-child-process-execfilesync-maxbuf.js",
       "test-child-process-execsync-maxbuf.js",
+      "test-child-process-exit-code.js",
+      "test-child-process-flush-stdio.js",
+      "test-child-process-ipc.js",
       "test-child-process-kill.js",
+      "test-child-process-set-blocking.js",
+      "test-child-process-spawn-args.js",
+      "test-child-process-spawn-event.js",
       "test-child-process-spawnsync-args.js",
       "test-child-process-spawnsync-env.js",
       "test-child-process-spawnsync-maxbuf.js",
       "test-child-process-spawnsync-validation-errors.js",
       "test-child-process-spawnsync.js",
+      "test-child-process-stdio-inherit.js",
+      "test-child-process-stdout-flush-exit.js",
+      "test-child-process-stdout-flush.js",
       "test-client-request-destroy.js",
       "test-console-async-write-error.js",
       "test-console-group.js",
@@ -768,7 +803,9 @@
       "test-net-pingpong-delay.js",
       "test-net-write-callbacks.js"
     ],
-    "sequential": []
+    "sequential": [
+      "test-child-process-exit.js"
+    ]
   },
   "windowsIgnore": {
     "parallel": [
diff --git a/node/_tools/test/common/child_process.js b/node/_tools/test/common/child_process.js
new file mode 100644
index 000000000000..4b553ea84bf4
--- /dev/null
+++ b/node/_tools/test/common/child_process.js
@@ -0,0 +1,56 @@
+// 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 "node/_tools/setup.ts". Do not modify this file manually
+
+'use strict';
+
+const assert = require('assert');
+const common = require('./');
+
+// Workaround for Windows Server 2008R2
+// When CMD is used to launch a process and CMD is killed too quickly, the
+// process can stay behind running in suspended state, never completing.
+function cleanupStaleProcess(filename) {
+  if (!common.isWindows) {
+    return;
+  }
+  process.once('beforeExit', () => {
+    const basename = filename.replace(/.*[/\\]/g, '');
+    try {
+      require('child_process')
+        .execFileSync(`${process.env.SystemRoot}\\System32\\wbem\\WMIC.exe`, [
+          'process',
+          'where',
+          `commandline like '%${basename}%child'`,
+          'delete',
+          '/nointeractive',
+        ]);
+    } catch {
+      // Ignore failures, there might not be any stale process to clean up.
+    }
+  });
+}
+
+// This should keep the child process running long enough to expire
+// the timeout.
+const kExpiringChildRunTime = common.platformTimeout(20 * 1000);
+const kExpiringParentTimer = 1;
+assert(kExpiringChildRunTime > kExpiringParentTimer);
+
+function logAfterTime(time) {
+  setTimeout(() => {
+    // The following console statements are part of the test.
+    console.log('child stdout');
+    console.error('child stderr');
+  }, time);
+}
+
+module.exports = {
+  cleanupStaleProcess,
+  logAfterTime,
+  kExpiringChildRunTime,
+  kExpiringParentTimer
+};
diff --git a/node/_tools/test/fixtures/GH-1899-output.js b/node/_tools/test/fixtures/GH-1899-output.js
new file mode 100644
index 000000000000..013b61ba0510
--- /dev/null
+++ b/node/_tools/test/fixtures/GH-1899-output.js
@@ -0,0 +1,30 @@
+// 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 "node/_tools/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.
+
+console.log('hello, world!');
+
diff --git a/node/_tools/test/fixtures/child_process_should_emit_error.js b/node/_tools/test/fixtures/child_process_should_emit_error.js
new file mode 100644
index 000000000000..7ceaf9209080
--- /dev/null
+++ b/node/_tools/test/fixtures/child_process_should_emit_error.js
@@ -0,0 +1,36 @@
+// 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 "node/_tools/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.
+
+const exec = require('child_process').exec;
+
+[0, 1].forEach(function(i) {
+  exec('ls', function(err, stdout, stderr) {
+    console.log(i);
+    throw new Error('hello world');
+  });
+});
diff --git a/node/_tools/test/fixtures/echo.js b/node/_tools/test/fixtures/echo.js
index 5c439d862132..893099e9bd9d 100644
--- a/node/_tools/test/fixtures/echo.js
+++ b/node/_tools/test/fixtures/echo.js
@@ -31,7 +31,10 @@ const assert = require('assert');
 
 process.stdout.write('hello world\r\n');
 
-var stdin = process.openStdin();
+// TODO(PolarETech): process.openStdin() is not yet implemented.
+// Use process.stdin instead.
+var stdin = process.stdin;
+// var stdin = process.openStdin();
 
 stdin.on('data', function(data) {
   process.stdout.write(data.toString());
diff --git a/node/_tools/test/fixtures/exit.js b/node/_tools/test/fixtures/exit.js
index ce93ad49cfa9..ca80f48286b3 100644
--- a/node/_tools/test/fixtures/exit.js
+++ b/node/_tools/test/fixtures/exit.js
@@ -26,4 +26,6 @@
 // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 // USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-process.exit(process.argv[2] || 1);
+// TODO(PolarETech): The process.argv[3] should be argv[2].
+
+process.exit(process.argv[3] || 1);
diff --git a/node/_tools/test/fixtures/print-chars.js b/node/_tools/test/fixtures/print-chars.js
new file mode 100644
index 000000000000..2519c77fd2e6
--- /dev/null
+++ b/node/_tools/test/fixtures/print-chars.js
@@ -0,0 +1,35 @@
+// 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 "node/_tools/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.
+
+// TODO(PolarETech): The process.argv[3] should be argv[2].
+
+const assert = require('assert');
+
+var n = parseInt(process.argv[3]);
+
+process.stdout.write('c'.repeat(n));
diff --git a/node/_tools/test/parallel/test-child-process-can-write-to-stdout.js b/node/_tools/test/parallel/test-child-process-can-write-to-stdout.js
new file mode 100644
index 000000000000..11dbf9bcb3d2
--- /dev/null
+++ b/node/_tools/test/parallel/test-child-process-can-write-to-stdout.js
@@ -0,0 +1,29 @@
+// 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 "node/_tools/setup.ts". Do not modify this file manually
+
+'use strict';
+// Tests that a spawned child process can write to stdout without throwing.
+// See https://github.com/nodejs/node-v0.x-archive/issues/1899.
+
+require('../common');
+const fixtures = require('../common/fixtures');
+const assert = require('assert');
+const spawn = require('child_process').spawn;
+
+const child = spawn(process.argv[0], [
+  fixtures.path('GH-1899-output.js'),
+]);
+let output = '';
+
+child.stdout.on('data', function(data) {
+  output += data;
+});
+
+child.on('exit', function(code, signal) {
+  assert.strictEqual(code, 0);
+  assert.strictEqual(output, 'hello, world!\n');
+});
diff --git a/node/_tools/test/parallel/test-child-process-default-options.js b/node/_tools/test/parallel/test-child-process-default-options.js
new file mode 100644
index 000000000000..6f91058b51d7
--- /dev/null
+++ b/node/_tools/test/parallel/test-child-process-default-options.js
@@ -0,0 +1,58 @@
+// 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 "node/_tools/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 { isWindows } = require('../common');
+const assert = require('assert');
+
+const spawn = require('child_process').spawn;
+const debug = require('util').debuglog('test');
+
+process.env.HELLO = 'WORLD';
+
+let child;
+if (isWindows) {
+  child = spawn('cmd.exe', ['/c', 'set'], {});
+} else {
+  child = spawn('/usr/bin/env', [], {});
+}
+
+let response = '';
+
+child.stdout.setEncoding('utf8');
+
+child.stdout.on('data', function(chunk) {
+  debug(`stdout: ${chunk}`);
+  response += chunk;
+});
+
+process.on('exit', function() {
+  assert.ok(response.includes('HELLO=WORLD'),
+            'spawn did not use process.env as default ' +
+            `(process.env.HELLO = ${process.env.HELLO})`);
+});
diff --git a/node/_tools/test/parallel/test-child-process-double-pipe.js b/node/_tools/test/parallel/test-child-process-double-pipe.js
new file mode 100644
index 000000000000..081eda3cb40e
--- /dev/null
+++ b/node/_tools/test/parallel/test-child-process-double-pipe.js
@@ -0,0 +1,129 @@
+// 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 "node/_tools/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 {
+  isWindows,
+  mustCall,
+  mustCallAtLeast,
+} = require('../common');
+const assert = require('assert');
+const os = require('os');
+const spawn = require('child_process').spawn;
+const debug = require('util').debuglog('test');
+
+// We're trying to reproduce:
+// $ echo "hello\nnode\nand\nworld" | grep o | sed s/o/a/
+
+let grep, sed, echo;
+
+if (isWindows) {
+  grep = spawn('grep', ['--binary', 'o']);
+  sed = spawn('sed', ['--binary', 's/o/O/']);
+  echo = spawn('cmd.exe',
+               ['/c', 'echo', 'hello&&', 'echo',
+                'node&&', 'echo', 'and&&', 'echo', 'world']);
+} else {
+  grep = spawn('grep', ['o']);
+  sed = spawn('sed', ['s/o/O/']);
+  echo = spawn('echo', ['hello\nnode\nand\nworld\n']);
+}
+
+// If the spawn function leaks file descriptors to subprocesses, grep and sed
+// hang.
+// This happens when calling pipe(2) and then forgetting to set the
+// FD_CLOEXEC flag on the resulting file descriptors.
+//
+// This test checks child processes exit, meaning they don't hang like
+// explained above.
+
+
+// pipe echo | grep
+echo.stdout.on('data', mustCallAtLeast((data) => {
+  debug(`grep stdin write ${data.length}`);
+  if (!grep.stdin.write(data)) {
+    echo.stdout.pause();
+  }
+}));
+
+// TODO(@jasnell): This does not appear to ever be
+// emitted. It's not clear if it is necessary.
+grep.stdin.on('drain', (data) => {
+  echo.stdout.resume();
+});
+
+// Propagate end from echo to grep
+echo.stdout.on('end', mustCall((code) => {
+  grep.stdin.end();
+}));
+
+echo.on('exit', mustCall(() => {
+  debug('echo exit');
+}));
+
+grep.on('exit', mustCall(() => {
+  debug('grep exit');
+}));
+
+sed.on('exit', mustCall(() => {
+  debug('sed exit');
+}));
+
+
+// pipe grep | sed
+grep.stdout.on('data', mustCallAtLeast((data) => {
+  debug(`grep stdout ${data.length}`);
+  if (!sed.stdin.write(data)) {
+    grep.stdout.pause();
+  }
+}));
+
+// TODO(@jasnell): This does not appear to ever be
+// emitted. It's not clear if it is necessary.
+sed.stdin.on('drain', (data) => {
+  grep.stdout.resume();
+});
+
+// Propagate end from grep to sed
+grep.stdout.on('end', mustCall((code) => {
+  debug('grep stdout end');
+  sed.stdin.end();
+}));
+
+
+let result = '';
+
+// print sed's output
+sed.stdout.on('data', mustCallAtLeast((data) => {
+  result += data.toString('utf8', 0, data.length);
+  debug(data);
+}));
+
+sed.stdout.on('end', mustCall((code) => {
+  assert.strictEqual(result, `hellO${os.EOL}nOde${os.EOL}wOrld${os.EOL}`);
+}));
diff --git a/node/_tools/test/parallel/test-child-process-exec-abortcontroller-promisified.js b/node/_tools/test/parallel/test-child-process-exec-abortcontroller-promisified.js
index 64a39f50f25f..4ba699ba49e8 100644
--- a/node/_tools/test/parallel/test-child-process-exec-abortcontroller-promisified.js
+++ b/node/_tools/test/parallel/test-child-process-exec-abortcontroller-promisified.js
@@ -5,7 +5,7 @@
 // Taken from Node 18.8.0
 // This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
 
-// TODO(#2674): The "eval" subcommand passed to execPromisifed() should be the "-e" option.
+// TODO(PolarETech): The "eval" subcommand passed to execPromisifed() should be the "-e" option.
 
 'use strict';
 const common = require('../common');
diff --git a/node/_tools/test/parallel/test-child-process-exec-encoding.js b/node/_tools/test/parallel/test-child-process-exec-encoding.js
index e96fa1102143..fe03e98d0663 100644
--- a/node/_tools/test/parallel/test-child-process-exec-encoding.js
+++ b/node/_tools/test/parallel/test-child-process-exec-encoding.js
@@ -5,9 +5,9 @@
 // Taken from Node 18.8.0
 // This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
 
-// TODO(#2674): The process.argv[3] check should be argv[2], and the
+// TODO(PolarETech): The process.argv[3] check should be argv[2], and the
 // command passed to exec() should not need to include "run", "-A",
-// "--unstable", and "require.ts".
+// and "require.ts".
 
 'use strict';
 const common = require('../common');
@@ -24,7 +24,7 @@ if (process.argv[3] === 'child') {
   const expectedStdout = `${stdoutData}\n`;
   const expectedStderr = `${stderrData}\n`;
   function run(options, callback) {
-    const cmd = `"${process.execPath}" run -A --unstable require.ts "${__filename}" child`;
+    const cmd = `"${process.execPath}" run -A require.ts "${__filename}" child`;
 
     cp.exec(cmd, options, common.mustSucceed((stdout, stderr) => {
       callback(stdout, stderr);
diff --git a/node/_tools/test/parallel/test-child-process-exec-kill-throws.js b/node/_tools/test/parallel/test-child-process-exec-kill-throws.js
index c908d15c1a24..6a28c2a18dfd 100644
--- a/node/_tools/test/parallel/test-child-process-exec-kill-throws.js
+++ b/node/_tools/test/parallel/test-child-process-exec-kill-throws.js
@@ -5,9 +5,9 @@
 // Taken from Node 18.8.0
 // This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
 
-// TODO(#2674): The process.argv[3] check should be argv[2], and the
+// TODO(PolarETech): The process.argv[3] check should be argv[2], and the
 // command passed to exec() should not need to include "run", "-A",
-// "--unstable", and "require.ts".
+// and "require.ts".
 
 'use strict';
 // Flags: --expose-internals
@@ -29,7 +29,7 @@ if (process.argv[3] === 'child') {
     throw new Error('mock error');
   };
 
-  const cmd = `"${process.execPath}" run -A --unstable require.ts "${__filename}" child`;
+  const cmd = `"${process.execPath}" run -A require.ts "${__filename}" child`;
   const options = { maxBuffer: 0, killSignal: 'SIGKILL' };
 
   const child = cp.exec(cmd, options, common.mustCall((err, stdout, stderr) => {
diff --git a/node/_tools/test/parallel/test-child-process-exec-maxbuf.js b/node/_tools/test/parallel/test-child-process-exec-maxbuf.js
index deafc7a6e73f..2e99855c040f 100644
--- a/node/_tools/test/parallel/test-child-process-exec-maxbuf.js
+++ b/node/_tools/test/parallel/test-child-process-exec-maxbuf.js
@@ -5,7 +5,7 @@
 // Taken from Node 18.8.0
 // This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
 
-// TODO(#2674): The "eval" subcommand passed to exec() should be the "-e" option.
+// TODO(PolarETech): The "eval" subcommand passed to exec() should be the "-e" option.
 
 'use strict';
 const common = require('../common');
diff --git a/node/_tools/test/parallel/test-child-process-exec-std-encoding.js b/node/_tools/test/parallel/test-child-process-exec-std-encoding.js
index 2ef794a64277..85f3ec2bf175 100644
--- a/node/_tools/test/parallel/test-child-process-exec-std-encoding.js
+++ b/node/_tools/test/parallel/test-child-process-exec-std-encoding.js
@@ -5,9 +5,9 @@
 // Taken from Node 18.8.0
 // This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
 
-// TODO(#2674): The process.argv[3] check should be argv[2], and the
+// TODO(PolarETech): The process.argv[3] check should be argv[2], and the
 // command passed to exec() should not need to include "run", "-A",
-// "--unstable", and "require.ts".
+// and "require.ts".
 
 'use strict';
 const common = require('../common');
@@ -23,7 +23,7 @@ if (process.argv[3] === 'child') {
   console.log(stdoutData);
   console.error(stderrData);
 } else {
-  const cmd = `"${process.execPath}" run -A --unstable require.ts "${__filename}" child`;
+  const cmd = `"${process.execPath}" run -A require.ts "${__filename}" child`;
   const child = cp.exec(cmd, common.mustSucceed((stdout, stderr) => {
     assert.strictEqual(stdout, expectedStdout);
     assert.strictEqual(stderr, expectedStderr);
diff --git a/node/_tools/test/parallel/test-child-process-exec-timeout-expire.js b/node/_tools/test/parallel/test-child-process-exec-timeout-expire.js
new file mode 100644
index 000000000000..67c4a7204608
--- /dev/null
+++ b/node/_tools/test/parallel/test-child-process-exec-timeout-expire.js
@@ -0,0 +1,61 @@
+// 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 "node/_tools/setup.ts". Do not modify this file manually
+
+// TODO(PolarETech): The process.argv[3] check should be argv[2], and the
+// command passed to exec() should not need to include "run", "-A",
+// and "require.ts".
+
+'use strict';
+
+// Test exec() with a timeout that expires.
+
+const common = require('../common');
+const assert = require('assert');
+const cp = require('child_process');
+
+const {
+  cleanupStaleProcess,
+  logAfterTime,
+  kExpiringChildRunTime,
+  kExpiringParentTimer
+} = require('../common/child_process');
+
+if (process.argv[3] === 'child') {
+  logAfterTime(kExpiringChildRunTime);
+  return;
+}
+
+const cmd = `"${process.execPath}" run -A require.ts "${__filename}" child`;
+
+cp.exec(cmd, {
+  timeout: kExpiringParentTimer,
+}, common.mustCall((err, stdout, stderr) => {
+  console.log('[stdout]', stdout.trim());
+  console.log('[stderr]', stderr.trim());
+
+  let sigterm = 'SIGTERM';
+  assert.strictEqual(err.killed, true);
+  // TODO OpenBSD returns a null signal and 143 for code
+  if (common.isOpenBSD) {
+    assert.strictEqual(err.code, 143);
+    sigterm = null;
+  } else {
+    assert.strictEqual(err.code, null);
+  }
+  // At least starting with Darwin Kernel Version 16.4.0, sending a SIGTERM to a
+  // process that is still starting up kills it with SIGKILL instead of SIGTERM.
+  // See: https://github.com/libuv/libuv/issues/1226
+  if (common.isOSX)
+    assert.ok(err.signal === 'SIGTERM' || err.signal === 'SIGKILL');
+  else
+    assert.strictEqual(err.signal, sigterm);
+  assert.strictEqual(err.cmd, cmd);
+  assert.strictEqual(stdout.trim(), '');
+  assert.strictEqual(stderr.trim(), '');
+}));
+
+cleanupStaleProcess(__filename);
diff --git a/node/_tools/test/parallel/test-child-process-exec-timeout-kill.js b/node/_tools/test/parallel/test-child-process-exec-timeout-kill.js
new file mode 100644
index 000000000000..fd4884fc5fc8
--- /dev/null
+++ b/node/_tools/test/parallel/test-child-process-exec-timeout-kill.js
@@ -0,0 +1,50 @@
+// 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 "node/_tools/setup.ts". Do not modify this file manually
+
+// TODO(PolarETech): The process.argv[3] check should be argv[2], and the
+// command passed to exec() should not need to include "run", "-A",
+// and "require.ts".
+
+'use strict';
+
+// Test exec() with both a timeout and a killSignal.
+
+const common = require('../common');
+const assert = require('assert');
+const cp = require('child_process');
+
+const {
+  cleanupStaleProcess,
+  logInTimeout,
+  kExpiringChildRunTime,
+  kExpiringParentTimer,
+} = require('../common/child_process');
+
+if (process.argv[3] === 'child') {
+  logInTimeout(kExpiringChildRunTime);
+  return;
+}
+
+const cmd = `"${process.execPath}" run -A require.ts "${__filename}" child`;
+
+// Test with a different kill signal.
+cp.exec(cmd, {
+  timeout: kExpiringParentTimer,
+  killSignal: 'SIGKILL'
+}, common.mustCall((err, stdout, stderr) => {
+  console.log('[stdout]', stdout.trim());
+  console.log('[stderr]', stderr.trim());
+
+  assert.strictEqual(err.killed, true);
+  assert.strictEqual(err.code, null);
+  assert.strictEqual(err.signal, 'SIGKILL');
+  assert.strictEqual(err.cmd, cmd);
+  assert.strictEqual(stdout.trim(), '');
+  assert.strictEqual(stderr.trim(), '');
+}));
+
+cleanupStaleProcess(__filename);
diff --git a/node/_tools/test/parallel/test-child-process-exec-timeout-not-expired.js b/node/_tools/test/parallel/test-child-process-exec-timeout-not-expired.js
new file mode 100644
index 000000000000..31fa1f7259f7
--- /dev/null
+++ b/node/_tools/test/parallel/test-child-process-exec-timeout-not-expired.js
@@ -0,0 +1,45 @@
+// 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 "node/_tools/setup.ts". Do not modify this file manually
+
+// TODO(PolarETech): The process.argv[3] check should be argv[2], and the
+// command passed to exec() should not need to include "run", "-A",
+// and "require.ts".
+
+'use strict';
+
+// Test exec() when a timeout is set, but not expired.
+
+const common = require('../common');
+const assert = require('assert');
+const cp = require('child_process');
+
+const {
+  cleanupStaleProcess,
+  logAfterTime
+} = require('../common/child_process');
+
+const kTimeoutNotSupposedToExpire = 2 ** 30;
+const childRunTime = common.platformTimeout(100);
+
+// The time spent in the child should be smaller than the timeout below.
+assert(childRunTime < kTimeoutNotSupposedToExpire);
+
+if (process.argv[3] === 'child') {
+  logAfterTime(childRunTime);
+  return;
+}
+
+const cmd = `"${process.execPath}" run -A require.ts "${__filename}" child`;
+
+cp.exec(cmd, {
+  timeout: kTimeoutNotSupposedToExpire
+}, common.mustSucceed((stdout, stderr) => {
+  assert.strictEqual(stdout.trim(), 'child stdout');
+  assert.strictEqual(stderr.trim(), 'child stderr');
+}));
+
+cleanupStaleProcess(__filename);
diff --git a/node/_tools/test/parallel/test-child-process-execFile-promisified-abortController.js b/node/_tools/test/parallel/test-child-process-execFile-promisified-abortController.js
index 7845bec1d757..fe3e8765ea26 100644
--- a/node/_tools/test/parallel/test-child-process-execFile-promisified-abortController.js
+++ b/node/_tools/test/parallel/test-child-process-execFile-promisified-abortController.js
@@ -5,6 +5,9 @@
 // Taken from Node 18.12.1
 // This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
 
+// TODO(PolarETech): The args passed to promisified() should not need to
+// include "require.ts".
+
 'use strict';
 
 const common = require('../common');
@@ -24,7 +27,7 @@ const invalidArgTypeError = {
   // Verify that the signal option works properly
   const ac = new AbortController();
   const signal = ac.signal;
-  const promise = promisified(process.execPath, [echoFixture, 0], { signal });
+  const promise = promisified(process.execPath, ['require.ts', echoFixture, 0], { signal });
 
   ac.abort();
 
@@ -39,7 +42,7 @@ const invalidArgTypeError = {
   const signal = AbortSignal.abort();
 
   assert.rejects(
-    promisified(process.execPath, [echoFixture, 0], { signal }),
+    promisified(process.execPath, ['require.ts', echoFixture, 0], { signal }),
     { name: 'AbortError' }
   ).then(common.mustCall());
 }
@@ -49,7 +52,7 @@ const invalidArgTypeError = {
   // is passed, ERR_INVALID_ARG_TYPE is thrown
   const signal = {};
   assert.throws(() => {
-    promisified(process.execPath, [echoFixture, 0], { signal });
+    promisified(process.execPath, ['require.ts', echoFixture, 0], { signal });
   }, invalidArgTypeError);
 }
 
@@ -58,6 +61,6 @@ const invalidArgTypeError = {
   // is passed, ERR_INVALID_ARG_TYPE is thrown
   const signal = 'world!';
   assert.throws(() => {
-    promisified(process.execPath, [echoFixture, 0], { signal });
+    promisified(process.execPath, ['require.ts', echoFixture, 0], { signal });
   }, invalidArgTypeError);
 }
diff --git a/node/_tools/test/parallel/test-child-process-execfile-maxbuf.js b/node/_tools/test/parallel/test-child-process-execfile-maxbuf.js
new file mode 100644
index 000000000000..ef31f4e22520
--- /dev/null
+++ b/node/_tools/test/parallel/test-child-process-execfile-maxbuf.js
@@ -0,0 +1,99 @@
+// 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 "node/_tools/setup.ts". Do not modify this file manually
+
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+const { execFile } = require('child_process');
+
+function checkFactory(streamName) {
+  return common.mustCall((err) => {
+    assert(err instanceof RangeError);
+    assert.strictEqual(err.message, `${streamName} maxBuffer length exceeded`);
+    assert.strictEqual(err.code, 'ERR_CHILD_PROCESS_STDIO_MAXBUFFER');
+  });
+}
+
+// default value
+{
+  execFile(
+    process.execPath,
+    ['-e', 'console.log("a".repeat(1024 * 1024))'],
+    checkFactory('stdout')
+  );
+}
+
+// default value
+{
+  execFile(
+    process.execPath,
+    ['-e', 'console.log("a".repeat(1024 * 1024 - 1))'],
+    common.mustSucceed((stdout, stderr) => {
+      assert.strictEqual(stdout.trim(), 'a'.repeat(1024 * 1024 - 1));
+      assert.strictEqual(stderr, '');
+    })
+  );
+}
+
+{
+  const options = { maxBuffer: Infinity };
+
+  execFile(
+    process.execPath,
+    ['-e', 'console.log("hello world");'],
+    options,
+    common.mustSucceed((stdout, stderr) => {
+      assert.strictEqual(stdout.trim(), 'hello world');
+      assert.strictEqual(stderr, '');
+    })
+  );
+}
+
+{
+  execFile('echo', ['hello world'], { maxBuffer: 5 }, checkFactory('stdout'));
+}
+
+const unicode = '中文测试'; // length = 4, byte length = 12
+
+{
+  execFile(
+    process.execPath,
+    ['-e', `console.log('${unicode}');`],
+    { maxBuffer: 10 },
+    checkFactory('stdout'));
+}
+
+{
+  execFile(
+    process.execPath,
+    ['-e', `console.error('${unicode}');`],
+    { maxBuffer: 10 },
+    checkFactory('stderr')
+  );
+}
+
+{
+  const child = execFile(
+    process.execPath,
+    ['-e', `console.log('${unicode}');`],
+    { encoding: null, maxBuffer: 10 },
+    checkFactory('stdout')
+  );
+
+  child.stdout.setEncoding('utf-8');
+}
+
+{
+  const child = execFile(
+    process.execPath,
+    ['-e', `console.error('${unicode}');`],
+    { encoding: null, maxBuffer: 10 },
+    checkFactory('stderr')
+  );
+
+  child.stderr.setEncoding('utf-8');
+}
diff --git a/node/_tools/test/parallel/test-child-process-execfile.js b/node/_tools/test/parallel/test-child-process-execfile.js
index 651a3ed105b3..9f9268407baa 100644
--- a/node/_tools/test/parallel/test-child-process-execfile.js
+++ b/node/_tools/test/parallel/test-child-process-execfile.js
@@ -5,6 +5,9 @@
 // Taken from Node 18.8.0
 // This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
 
+// TODO(PolarETech): The args passed to execFile() should not need to
+// include "require.ts".
+
 // TODO(cjihrig): See inline TODO comments below.
 
 'use strict';
@@ -20,20 +23,18 @@ const fixture = fixtures.path('exit.js');
 const echoFixture = fixtures.path('echo.js');
 const execOpts = { encoding: 'utf8', shell: true };
 
-// TODO(cjihrig): The fixture depends on process.argv, which is currently
-// inaccurate when passing all of the required parameters for Deno.
-// {
-//   execFile(
-//     process.execPath,
-//     [fixture, 42],
-//     common.mustCall((e) => {
-//       // Check that arguments are included in message
-//       assert.strictEqual(e.message.trim(),
-//                          `Command failed: ${process.execPath} ${fixture} 42`);
-//       assert.strictEqual(e.code, 42);
-//     })
-//   );
-// }
+{
+  execFile(
+    process.execPath,
+    ['require.ts', fixture, 42],
+    common.mustCall((e) => {
+      // Check that arguments are included in message
+      assert.strictEqual(e.message.trim(),
+                         `Command failed: ${process.execPath} require.ts ${fixture} 42`);
+      assert.strictEqual(e.code, 42);
+    })
+  );
+}
 
 {
   // Verify that negative exit codes can be translated to UV error names.
@@ -70,7 +71,7 @@ const execOpts = { encoding: 'utf8', shell: true };
       assert.strictEqual(err.name, 'AbortError');
       assert.strictEqual(err.signal, undefined);
     });
-    execFile(process.execPath, [echoFixture, 0], { signal }, check);
+    execFile(process.execPath, ['require.ts', echoFixture, 0], { signal }, check);
   };
 
   // Verify that it still works the same way now that the signal is aborted.
@@ -87,7 +88,7 @@ const execOpts = { encoding: 'utf8', shell: true };
     assert.strictEqual(err.name, 'AbortError');
     assert.strictEqual(err.signal, undefined);
   });
-  execFile(process.execPath, [echoFixture, 0], { signal }, check);
+  execFile(process.execPath, ['require.ts', echoFixture, 0], { signal }, check);
 }
 
 {
@@ -96,7 +97,7 @@ const execOpts = { encoding: 'utf8', shell: true };
   assert.throws(() => {
     const callback = common.mustNotCall(() => {});
 
-    execFile(process.execPath, [echoFixture, 0], { signal: 'hello' }, callback);
+    execFile(process.execPath, ['require.ts', echoFixture, 0], { signal: 'hello' }, callback);
   }, { code: 'ERR_INVALID_ARG_TYPE', name: 'TypeError' });
 }
 {
diff --git a/node/_tools/test/parallel/test-child-process-exit-code.js b/node/_tools/test/parallel/test-child-process-exit-code.js
new file mode 100644
index 000000000000..caa57986b42b
--- /dev/null
+++ b/node/_tools/test/parallel/test-child-process-exit-code.js
@@ -0,0 +1,51 @@
+// 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 "node/_tools/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.
+
+// TODO(PolarETech): The args passed to spawn() should not need to
+// include "require.ts".
+
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+const spawn = require('child_process').spawn;
+const fixtures = require('../common/fixtures');
+
+const exitScript = fixtures.path('exit.js');
+const exitChild = spawn(process.argv[0], ['require.ts', exitScript, 23]);
+exitChild.on('exit', common.mustCall(function(code, signal) {
+  assert.strictEqual(code, 23);
+  assert.strictEqual(signal, null);
+}));
+
+
+const errorScript = fixtures.path('child_process_should_emit_error.js');
+const errorChild = spawn(process.argv[0], ['require.ts', errorScript]);
+errorChild.on('exit', common.mustCall(function(code, signal) {
+  assert.ok(code !== 0);
+  assert.strictEqual(signal, null);
+}));
diff --git a/node/_tools/test/parallel/test-child-process-flush-stdio.js b/node/_tools/test/parallel/test-child-process-flush-stdio.js
new file mode 100644
index 000000000000..72357bcdd42f
--- /dev/null
+++ b/node/_tools/test/parallel/test-child-process-flush-stdio.js
@@ -0,0 +1,40 @@
+// 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 "node/_tools/setup.ts". Do not modify this file manually
+
+'use strict';
+const common = require('../common');
+const cp = require('child_process');
+const assert = require('assert');
+
+// Windows' `echo` command is a built-in shell command and not an external
+// executable like on *nix
+const opts = { shell: common.isWindows };
+
+const p = cp.spawn('echo', [], opts);
+
+p.on('close', common.mustCall((code, signal) => {
+  assert.strictEqual(code, 0);
+  assert.strictEqual(signal, null);
+  spawnWithReadable();
+}));
+
+p.stdout.read();
+
+const spawnWithReadable = () => {
+  const buffer = [];
+  const p = cp.spawn('echo', ['123'], opts);
+  p.on('close', common.mustCall((code, signal) => {
+    assert.strictEqual(code, 0);
+    assert.strictEqual(signal, null);
+    assert.strictEqual(Buffer.concat(buffer).toString().trim(), '123');
+  }));
+  p.stdout.on('readable', () => {
+    let buf;
+    while ((buf = p.stdout.read()) !== null)
+      buffer.push(buf);
+  });
+};
diff --git a/node/_tools/test/parallel/test-child-process-ipc.js b/node/_tools/test/parallel/test-child-process-ipc.js
new file mode 100644
index 000000000000..c1d7bc2b6184
--- /dev/null
+++ b/node/_tools/test/parallel/test-child-process-ipc.js
@@ -0,0 +1,73 @@
+// 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 "node/_tools/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.
+
+// TODO(PolarETech): The args passed to spawn() should not need to
+// include "require.ts".
+
+'use strict';
+
+const {
+  mustCall,
+  mustNotCall,
+} = require('../common');
+const assert = require('assert');
+const debug = require('util').debuglog('test');
+
+const { spawn } = require('child_process');
+const fixtures = require('../common/fixtures');
+
+const sub = fixtures.path('echo.js');
+
+const child = spawn(process.argv[0], ['require.ts', sub]);
+
+child.stderr.on('data', mustNotCall());
+
+child.stdout.setEncoding('utf8');
+
+const messages = [
+  'hello world\r\n',
+  'echo me\r\n',
+];
+
+child.stdout.on('data', mustCall((data) => {
+  debug(`child said: ${JSON.stringify(data)}`);
+  const test = messages.shift();
+  debug(`testing for '${test}'`);
+  assert.strictEqual(data, test);
+  if (messages.length) {
+    debug(`writing '${messages[0]}'`);
+    child.stdin.write(messages[0]);
+  } else {
+    assert.strictEqual(messages.length, 0);
+    child.stdin.end();
+  }
+}, messages.length));
+
+child.stdout.on('end', mustCall((data) => {
+  debug('child end');
+}));
diff --git a/node/_tools/test/parallel/test-child-process-set-blocking.js b/node/_tools/test/parallel/test-child-process-set-blocking.js
new file mode 100644
index 000000000000..0c771bad8fb9
--- /dev/null
+++ b/node/_tools/test/parallel/test-child-process-set-blocking.js
@@ -0,0 +1,43 @@
+// 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 "node/_tools/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 ch = require('child_process');
+
+const SIZE = 100000;
+const python = process.env.PYTHON || (common.isWindows ? 'python' : 'python3');
+
+const cp = ch.spawn(python, ['-c', `print(${SIZE} * "C")`], {
+  stdio: 'inherit'
+});
+
+cp.on('exit', common.mustCall(function(code) {
+  assert.strictEqual(code, 0);
+}));
diff --git a/node/_tools/test/parallel/test-child-process-spawn-args.js b/node/_tools/test/parallel/test-child-process-spawn-args.js
new file mode 100644
index 000000000000..1e3378935fe4
--- /dev/null
+++ b/node/_tools/test/parallel/test-child-process-spawn-args.js
@@ -0,0 +1,62 @@
+// 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 "node/_tools/setup.ts". Do not modify this file manually
+
+'use strict';
+
+// This test confirms that `undefined`, `null`, and `[]`
+// can be used as a placeholder for the second argument (`args`) of `spawn()`.
+// Previously, there was a bug where using `undefined` for the second argument
+// caused the third argument (`options`) to be ignored.
+// See https://github.com/nodejs/node/issues/24912.
+
+const common = require('../common');
+const tmpdir = require('../common/tmpdir');
+
+const assert = require('assert');
+const { spawn } = require('child_process');
+
+tmpdir.refresh();
+
+const command = common.isWindows ? 'cd' : 'pwd';
+const options = { cwd: tmpdir.path };
+
+if (common.isWindows) {
+  // This test is not the case for Windows based systems
+  // unless the `shell` options equals to `true`
+
+  options.shell = true;
+}
+
+const testCases = [
+  undefined,
+  null,
+  [],
+];
+
+const expectedResult = tmpdir.path.trim().toLowerCase();
+
+(async () => {
+  const results = await Promise.all(
+    testCases.map((testCase) => {
+      return new Promise((resolve) => {
+        const subprocess = spawn(command, testCase, options);
+
+        let accumulatedData = Buffer.alloc(0);
+
+        subprocess.stdout.on('data', common.mustCall((data) => {
+          accumulatedData = Buffer.concat([accumulatedData, data]);
+        }));
+
+        subprocess.stdout.on('end', () => {
+          resolve(accumulatedData.toString().trim().toLowerCase());
+        });
+      });
+    })
+  );
+
+  assert.deepStrictEqual([...new Set(results)], [expectedResult]);
+})().then(common.mustCall());
diff --git a/node/_tools/test/parallel/test-child-process-spawn-event.js b/node/_tools/test/parallel/test-child-process-spawn-event.js
new file mode 100644
index 000000000000..62252f829ff2
--- /dev/null
+++ b/node/_tools/test/parallel/test-child-process-spawn-event.js
@@ -0,0 +1,34 @@
+// 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 "node/_tools/setup.ts". Do not modify this file manually
+
+'use strict';
+const common = require('../common');
+const spawn = require('child_process').spawn;
+const assert = require('assert');
+
+const subprocess = spawn('echo', ['ok']);
+
+let didSpawn = false;
+subprocess.on('spawn', function() {
+  didSpawn = true;
+});
+function mustCallAfterSpawn() {
+  return common.mustCall(function() {
+    assert.ok(didSpawn);
+  });
+}
+
+subprocess.on('error', common.mustNotCall());
+subprocess.on('spawn', common.mustCall());
+subprocess.stdout.on('data', mustCallAfterSpawn());
+subprocess.stdout.on('end', mustCallAfterSpawn());
+subprocess.stdout.on('close', mustCallAfterSpawn());
+subprocess.stderr.on('data', common.mustNotCall());
+subprocess.stderr.on('end', mustCallAfterSpawn());
+subprocess.stderr.on('close', mustCallAfterSpawn());
+subprocess.on('exit', mustCallAfterSpawn());
+subprocess.on('close', mustCallAfterSpawn());
diff --git a/node/_tools/test/parallel/test-child-process-stdio-inherit.js b/node/_tools/test/parallel/test-child-process-stdio-inherit.js
new file mode 100644
index 000000000000..e213dd6b8009
--- /dev/null
+++ b/node/_tools/test/parallel/test-child-process-stdio-inherit.js
@@ -0,0 +1,66 @@
+// 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 "node/_tools/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.
+
+// TODO(PolarETech): The process.argv[3] check should be argv[2], and
+// the args passed to spawn() should not need to include "require.ts".
+
+'use strict';
+require('../common');
+const assert = require('assert');
+const spawn = require('child_process').spawn;
+
+if (process.argv[3] === 'parent')
+  parent();
+else
+  grandparent();
+
+function grandparent() {
+  const child = spawn(process.execPath, ['require.ts', __filename, 'parent']);
+  child.stderr.pipe(process.stderr);
+  let output = '';
+  const input = 'asdfasdf';
+
+  child.stdout.on('data', function(chunk) {
+    output += chunk;
+  });
+  child.stdout.setEncoding('utf8');
+
+  child.stdin.end(input);
+
+  child.on('close', function(code, signal) {
+    assert.strictEqual(code, 0);
+    assert.strictEqual(signal, null);
+    // 'cat' on windows adds a \r\n at the end.
+    assert.strictEqual(output.trim(), input.trim());
+  });
+}
+
+function parent() {
+  // Should not immediately exit.
+  spawn('cat', [], { stdio: 'inherit' });
+}
diff --git a/node/_tools/test/parallel/test-child-process-stdout-flush-exit.js b/node/_tools/test/parallel/test-child-process-stdout-flush-exit.js
new file mode 100644
index 000000000000..585cc6084062
--- /dev/null
+++ b/node/_tools/test/parallel/test-child-process-stdout-flush-exit.js
@@ -0,0 +1,67 @@
+// 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 "node/_tools/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.
+
+// TODO(PolarETech): The process.argv[3] check should be argv[2],
+// the args passed to spawn() should not need to include "require.ts",
+// and the process.argv[2] passed to spawn() should be argv[1].
+
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+
+// If child process output to console and exit
+// The console.log statements here are part of the test.
+if (process.argv[3] === 'child') {
+  console.log('hello');
+  for (let i = 0; i < 200; i++) {
+    console.log('filler');
+  }
+  console.log('goodbye');
+  process.exit(0);
+} else {
+  // parent process
+  const spawn = require('child_process').spawn;
+
+  // spawn self as child
+  const child = spawn(process.argv[0], ['require.ts', process.argv[2], 'child']);
+
+  let stdout = '';
+
+  child.stderr.on('data', common.mustNotCall());
+
+  // Check if we receive both 'hello' at start and 'goodbye' at end
+  child.stdout.setEncoding('utf8');
+  child.stdout.on('data', common.mustCallAtLeast((data) => {
+    stdout += data;
+  }));
+
+  child.on('close', common.mustCall(() => {
+    assert.strictEqual(stdout.slice(0, 6), 'hello\n');
+    assert.strictEqual(stdout.slice(stdout.length - 8), 'goodbye\n');
+  }));
+}
diff --git a/node/_tools/test/parallel/test-child-process-stdout-flush.js b/node/_tools/test/parallel/test-child-process-stdout-flush.js
new file mode 100644
index 000000000000..4054d2189202
--- /dev/null
+++ b/node/_tools/test/parallel/test-child-process-stdout-flush.js
@@ -0,0 +1,58 @@
+// 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 "node/_tools/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.
+
+// TODO(PolarETech): The args passed to spawn() should not need to
+// include "require.ts".
+
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+const spawn = require('child_process').spawn;
+const fixtures = require('../common/fixtures');
+
+const sub = fixtures.path('print-chars.js');
+
+const n = 500000;
+
+const child = spawn(process.argv[0], ['require.ts', sub, n]);
+
+let count = 0;
+
+child.stderr.setEncoding('utf8');
+child.stderr.on('data', common.mustNotCall());
+
+child.stdout.setEncoding('utf8');
+child.stdout.on('data', (data) => {
+  count += data.length;
+});
+
+child.on('close', common.mustCall((code, signal) => {
+  assert.strictEqual(code, 0);
+  assert.strictEqual(signal, null);
+  assert.strictEqual(n, count);
+}));
diff --git a/node/_tools/test/parallel/test-stdin-from-file-spawn.js b/node/_tools/test/parallel/test-stdin-from-file-spawn.js
index fd81113b1f17..89a0860a325d 100644
--- a/node/_tools/test/parallel/test-stdin-from-file-spawn.js
+++ b/node/_tools/test/parallel/test-stdin-from-file-spawn.js
@@ -5,7 +5,7 @@
 // Taken from Node 18.8.0
 // This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
 
-// TODO(cjihrig): 'run -A --unstable require.ts' should not be needed in
+// TODO(cjihrig): 'run -A require.ts' should not be needed in
 // execSync() call at the bottom of this test.
 
 'use strict';
@@ -49,4 +49,4 @@ setTimeout(() => {
 }, 100);
 `);
 
-execSync(`${process.argv[0]} run -A --unstable require.ts ${tmpJsFile} < ${tmpCmdFile}`);
+execSync(`${process.argv[0]} run -A require.ts ${tmpJsFile} < ${tmpCmdFile}`);
diff --git a/node/_tools/test/sequential/test-child-process-exit.js b/node/_tools/test/sequential/test-child-process-exit.js
new file mode 100644
index 000000000000..c8930b05917e
--- /dev/null
+++ b/node/_tools/test/sequential/test-child-process-exit.js
@@ -0,0 +1,69 @@
+// 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 "node/_tools/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.
+
+// TODO(PolarETech): The process.argv[3] to be assigned to gen should be argv[2], 
+// and the arguments array passed to spawn() should not need to include "require.ts".
+
+'use strict';
+require('../common');
+
+// Open a chain of five Node processes each a child of the next. The final
+// process exits immediately. Each process in the chain is instructed to exit
+// when its child exits.
+// https://github.com/joyent/node/issues/1726
+
+const assert = require('assert');
+const ch = require('child_process');
+
+const gen = +(process.argv[3] || 0);
+const maxGen = 5;
+
+
+if (gen === maxGen) {
+  console.error('hit maxGen, exiting', maxGen);
+  return;
+}
+
+const child = ch.spawn(process.execPath, ['require.ts', __filename, gen + 1], {
+  stdio: [ 'ignore', 'pipe', 'ignore' ]
+});
+assert.ok(!child.stdin);
+assert.ok(child.stdout);
+assert.ok(!child.stderr);
+
+console.error('gen=%d, pid=%d', gen, process.pid);
+
+child.on('exit', function(code) {
+  console.error('exit %d from gen %d', code, gen + 1);
+});
+
+child.stdout.pipe(process.stdout);
+
+child.stdout.on('close', function() {
+  console.error('child.stdout close  gen=%d', gen);
+});
diff --git a/node/child_process_test.ts b/node/child_process_test.ts
index de7f476374a6..76a5b26f7994 100644
--- a/node/child_process_test.ts
+++ b/node/child_process_test.ts
@@ -191,53 +191,6 @@ Deno.test({
 // Copyright Joyent and Node contributors. All rights reserved. MIT license.
 // Ported from Node 15.5.1
 
-// TODO(uki00a): Remove this case once Node's `parallel/test-child-process-spawn-event.js` works.
-Deno.test("[child_process spawn] 'spawn' event", async () => {
-  const timeout = withTimeout(3000);
-  const subprocess = spawn(Deno.execPath(), ["eval", "console.log('ok')"]);
-
-  let didSpawn = false;
-  subprocess.on("spawn", function () {
-    didSpawn = true;
-  });
-
-  function mustNotBeCalled() {
-    timeout.reject(new Error("function should not have been called"));
-  }
-
-  const promises = [] as Promise<void>[];
-  function mustBeCalledAfterSpawn() {
-    const promise = deferred<void>();
-    promises.push(promise);
-    return () => {
-      if (didSpawn) {
-        promise.resolve();
-      } else {
-        promise.reject(
-          new Error("function should be called after the 'spawn' event"),
-        );
-      }
-    };
-  }
-
-  subprocess.on("error", mustNotBeCalled);
-  subprocess.stdout!.on("data", mustBeCalledAfterSpawn());
-  subprocess.stdout!.on("end", mustBeCalledAfterSpawn());
-  subprocess.stdout!.on("close", mustBeCalledAfterSpawn());
-  subprocess.stderr!.on("data", mustNotBeCalled);
-  subprocess.stderr!.on("end", mustBeCalledAfterSpawn());
-  subprocess.stderr!.on("close", mustBeCalledAfterSpawn());
-  subprocess.on("exit", mustBeCalledAfterSpawn());
-  subprocess.on("close", mustBeCalledAfterSpawn());
-
-  try {
-    await Promise.race([Promise.all(promises), timeout]);
-    timeout.resolve();
-  } finally {
-    subprocess.kill();
-  }
-});
-
 // TODO(uki00a): Remove this case once Node's `parallel/test-child-process-spawn-shell.js` works.
 Deno.test("[child_process spawn] Verify that a shell is executed", async () => {
   const promise = withTimeout(3000);
diff --git a/node/internal/child_process.ts b/node/internal/child_process.ts
index a89f5451e19c..ef25b40c6d8b 100644
--- a/node/internal/child_process.ts
+++ b/node/internal/child_process.ts
@@ -996,6 +996,7 @@ function toDenoArgs(args: string[]): string[] {
 
 export default {
   ChildProcess,
+  normalizeSpawnArguments,
   stdioStringToArray,
   spawnSync,
 };
diff --git a/node/module_all_test.ts b/node/module_all_test.ts
index 8c5c11041b2e..d12e1530534c 100644
--- a/node/module_all_test.ts
+++ b/node/module_all_test.ts
@@ -31,6 +31,7 @@ import * as http from "./http.ts";
 import * as http2 from "./http2.ts";
 import * as https from "./https.ts";
 import * as inspector from "./inspector.ts";
+import * as internalCp from "./internal/child_process.ts";
 import * as internalCryptoCertificate from "./internal/crypto/certificate.ts";
 import * as internalCryptoCipher from "./internal/crypto/cipher.ts";
 import * as internalCryptoDiffiehellman from "./internal/crypto/diffiehellman.ts";
@@ -122,6 +123,10 @@ Deno.test("modules", () => {
   assertEquals(keys(moduleAll.http2), keys(http2));
   assertEquals(keys(moduleAll.https), keys(https));
   assertEquals(keys(moduleAll.inspector), keys(inspector));
+  assertEquals(
+    keys(moduleAll["internal/child_process"]),
+    keys(internalCp),
+  );
   assertEquals(
     keys(moduleAll["internal/crypto/certificate"]),
     keys(internalCryptoCertificate),