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77 lines
2 KiB
JavaScript
77 lines
2 KiB
JavaScript
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// deno-fmt-ignore-file
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// deno-lint-ignore-file
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// Copyright Joyent and Node contributors. All rights reserved. MIT license.
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// Taken from Node 18.8.0
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// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
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// TODO(cjihrig): This should use Node's -e instead of Deno's eval CLI arg.
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'use strict';
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require('../common');
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// This test checks that the maxBuffer option for child_process.spawnSync()
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// works as expected.
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const assert = require('assert');
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const { getSystemErrorName } = require('util');
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const { execSync } = require('child_process');
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const msgOut = 'this is stdout';
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const msgOutBuf = Buffer.from(`${msgOut}\n`);
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const args = [
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'eval',
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`"console.log('${msgOut}')";`,
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];
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// Verify that an error is returned if maxBuffer is surpassed.
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{
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assert.throws(() => {
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execSync(`"${process.execPath}" ${args.join(' ')}`, { maxBuffer: 1 });
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}, (e) => {
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assert.ok(e, 'maxBuffer should error');
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assert.strictEqual(e.code, 'ENOBUFS');
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assert.strictEqual(getSystemErrorName(e.errno), 'ENOBUFS');
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// We can have buffers larger than maxBuffer because underneath we alloc 64k
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// that matches our read sizes.
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assert.deepStrictEqual(e.stdout, msgOutBuf);
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return true;
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});
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}
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// Verify that a maxBuffer size of Infinity works.
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{
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const ret = execSync(
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`"${process.execPath}" ${args.join(' ')}`,
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{ maxBuffer: Infinity }
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);
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assert.deepStrictEqual(ret, msgOutBuf);
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}
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// Default maxBuffer size is 1024 * 1024.
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{
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assert.throws(() => {
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execSync(
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`"${process.execPath}" eval "console.log('a'.repeat(1024 * 1024))"`
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);
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}, (e) => {
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assert.ok(e, 'maxBuffer should error');
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assert.strictEqual(e.code, 'ENOBUFS');
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assert.strictEqual(getSystemErrorName(e.errno), 'ENOBUFS');
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return true;
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});
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}
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// Default maxBuffer size is 1024 * 1024.
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{
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const ret = execSync(
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`"${process.execPath}" eval "console.log('a'.repeat(1024 * 1024 - 1))"`
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);
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assert.deepStrictEqual(
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ret.toString().trim(),
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'a'.repeat(1024 * 1024 - 1)
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);
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}
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