1 files changed, 161 insertions, 0 deletions
diff --git a/tests/node_compat/test/parallel/test-child-process-exec-maxbuf.js b/tests/node_compat/test/parallel/test-child-process-exec-maxbuf.js
new file mode 100644
index 000000000..2e99855c0
--- /dev/null
+++ b/tests/node_compat/test/parallel/test-child-process-exec-maxbuf.js
@@ -0,0 +1,161 @@
+// deno-fmt-ignore-file
+// deno-lint-ignore-file
+
+// Copyright Joyent and Node contributors. All rights reserved. MIT license.
+// 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 "eval" subcommand passed to exec() should be the "-e" option.
+
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+const cp = require('child_process');
+
+function runChecks(err, stdio, streamName, expected) {
+  assert.strictEqual(err.message, `${streamName} maxBuffer length exceeded`);
+  assert(err instanceof RangeError);
+  assert.strictEqual(err.code, 'ERR_CHILD_PROCESS_STDIO_MAXBUFFER');
+  assert.deepStrictEqual(stdio[streamName], expected);
+}
+
+// default value
+{
+  const cmd =
+    `"${process.execPath}" eval "console.log('a'.repeat(1024 * 1024))"`;
+
+  cp.exec(cmd, common.mustCall((err) => {
+    assert(err instanceof RangeError);
+    assert.strictEqual(err.message, 'stdout maxBuffer length exceeded');
+    assert.strictEqual(err.code, 'ERR_CHILD_PROCESS_STDIO_MAXBUFFER');
+  }));
+}
+
+// default value
+{
+  const cmd =
+    `${process.execPath} eval "console.log('a'.repeat(1024 * 1024 - 1))"`;
+
+  cp.exec(cmd, common.mustSucceed((stdout, stderr) => {
+    assert.strictEqual(stdout.trim(), 'a'.repeat(1024 * 1024 - 1));
+    assert.strictEqual(stderr, '');
+  }));
+}
+
+{
+  const cmd = `"${process.execPath}" eval "console.log('hello world');"`;
+  const options = { maxBuffer: Infinity };
+
+  cp.exec(cmd, options, common.mustSucceed((stdout, stderr) => {
+    assert.strictEqual(stdout.trim(), 'hello world');
+    assert.strictEqual(stderr, '');
+  }));
+}
+
+{
+  const cmd = 'echo hello world';
+
+  cp.exec(
+    cmd,
+    { maxBuffer: 5 },
+    common.mustCall((err, stdout, stderr) => {
+      runChecks(err, { stdout, stderr }, 'stdout', 'hello');
+    })
+  );
+}
+
+// default value
+{
+  const cmd =
+    `"${process.execPath}" eval "console.log('a'.repeat(1024 * 1024))"`;
+
+  cp.exec(
+    cmd,
+    common.mustCall((err, stdout, stderr) => {
+      runChecks(
+        err,
+        { stdout, stderr },
+        'stdout',
+        'a'.repeat(1024 * 1024)
+      );
+    })
+  );
+}
+
+// default value
+{
+  const cmd =
+    `"${process.execPath}" eval "console.log('a'.repeat(1024 * 1024 - 1))"`;
+
+  cp.exec(cmd, common.mustSucceed((stdout, stderr) => {
+    assert.strictEqual(stdout.trim(), 'a'.repeat(1024 * 1024 - 1));
+    assert.strictEqual(stderr, '');
+  }));
+}
+
+const unicode = '中文测试'; // length = 4, byte length = 12
+
+{
+  const cmd = `"${process.execPath}" eval "console.log('${unicode}');"`;
+
+  cp.exec(
+    cmd,
+    { maxBuffer: 10 },
+    common.mustCall((err, stdout, stderr) => {
+      runChecks(err, { stdout, stderr }, 'stdout', '中文测试\n');
+    })
+  );
+}
+
+{
+  const cmd = `"${process.execPath}" eval "console.error('${unicode}');"`;
+
+  cp.exec(
+    cmd,
+    { maxBuffer: 3 },
+    common.mustCall((err, stdout, stderr) => {
+      runChecks(err, { stdout, stderr }, 'stderr', '中文测');
+    })
+  );
+}
+
+{
+  const cmd = `"${process.execPath}" eval "console.log('${unicode}');"`;
+
+  const child = cp.exec(
+    cmd,
+    { encoding: null, maxBuffer: 10 },
+    common.mustCall((err, stdout, stderr) => {
+      runChecks(err, { stdout, stderr }, 'stdout', '中文测试\n');
+    })
+  );
+
+  child.stdout.setEncoding('utf-8');
+}
+
+{
+  const cmd = `"${process.execPath}" eval "console.error('${unicode}');"`;
+
+  const child = cp.exec(
+    cmd,
+    { encoding: null, maxBuffer: 3 },
+    common.mustCall((err, stdout, stderr) => {
+      runChecks(err, { stdout, stderr }, 'stderr', '中文测');
+    })
+  );
+
+  child.stderr.setEncoding('utf-8');
+}
+
+{
+  const cmd = `"${process.execPath}" eval "console.error('${unicode}');"`;
+
+  cp.exec(
+    cmd,
+    { encoding: null, maxBuffer: 5 },
+    common.mustCall((err, stdout, stderr) => {
+      const buf = Buffer.from(unicode).slice(0, 5);
+      runChecks(err, { stdout, stderr }, 'stderr', buf);
+    })
+  );
+}