node/test/parallel/test-fs-readfile-pipe-large.js
Antoine du Hamel 99e0d0d218
test: add escapePOSIXShell util
PR-URL: https://github.com/nodejs/node/pull/55125
Reviewed-By: Jacob Smith <jacob@frende.me>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: LiviaMedeiros <livia@cirno.name>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
2024-09-29 20:44:52 +00:00

42 lines
1.1 KiB
JavaScript

'use strict';
const common = require('../common');
// Simulate `cat readfile.js | node readfile.js`
if (common.isWindows || common.isAIX || common.isIBMi)
common.skip(`No /dev/stdin on ${process.platform}.`);
const assert = require('assert');
const fs = require('fs');
if (process.argv[2] === 'child') {
fs.readFile('/dev/stdin', function(er, data) {
assert.ifError(er);
process.stdout.write(data);
});
return;
}
const tmpdir = require('../common/tmpdir');
const filename = tmpdir.resolve('readfile_pipe_large_test.txt');
const dataExpected = 'a'.repeat(999999);
tmpdir.refresh();
fs.writeFileSync(filename, dataExpected);
const exec = require('child_process').exec;
const [cmd, opts] = common.escapePOSIXShell`"${process.execPath}" "${__filename}" child < "${filename}"`;
exec(cmd, { ...opts, maxBuffer: 1000000 }, common.mustSucceed((stdout, stderr) => {
assert.strictEqual(
stdout,
dataExpected,
`expect it reads the file and outputs 999999 'a' but got : ${stdout}`
);
assert.strictEqual(
stderr,
'',
`expect that it does not write to stderr, but got : ${stderr}`
);
console.log('ok');
}));