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denoland-deno/tests/node_compat/test/common/hijackstdio.js
Yoshiya Hinosawa d04d5677d9
chore: update node_compat setup script (#27051)
This PR updates the node_compat setup script. Now the copied version in
each test file is corrected. Also `TODO.md` links to the correct files
in Node.js repo.
2024-11-25 22:35:53 +09:00

39 lines
1 KiB
JavaScript

// deno-fmt-ignore-file
// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.
// Taken from Node 20.11.1
// This file is automatically generated by `tests/node_compat/runner/setup.ts`. Do not modify this file manually.
'use strict';
// Hijack stdout and stderr
const stdWrite = {};
function hijackStdWritable(name, listener) {
const stream = process[name];
const _write = stdWrite[name] = stream.write;
stream.writeTimes = 0;
stream.write = function(data, callback) {
try {
listener(data);
} catch (e) {
process.nextTick(() => { throw e; });
}
_write.call(stream, data, callback);
stream.writeTimes++;
};
}
function restoreWritable(name) {
process[name].write = stdWrite[name];
delete process[name].writeTimes;
}
module.exports = {
hijackStdout: hijackStdWritable.bind(null, 'stdout'),
hijackStderr: hijackStdWritable.bind(null, 'stderr'),
restoreStdout: restoreWritable.bind(null, 'stdout'),
restoreStderr: restoreWritable.bind(null, 'stderr'),
};