node/test/parallel/test-child-process-bad-stdi...

67 lines
1.9 KiB
JavaScript

'use strict';
// Flags: --expose-internals
const common = require('../common');
if (process.argv[2] === 'child') {
setTimeout(() => {}, common.platformTimeout(1000));
return;
}
const assert = require('node:assert');
const cp = require('node:child_process');
const { mock, test } = require('node:test');
const { ChildProcess } = require('internal/child_process');
// Monkey patch spawn() to create a child process normally, but destroy the
// stdout and stderr streams. This replicates the conditions where the streams
// cannot be properly created.
const original = ChildProcess.prototype.spawn;
mock.method(ChildProcess.prototype, 'spawn', function() {
const err = original.apply(this, arguments);
this.stdout.destroy();
this.stderr.destroy();
this.stdout = null;
this.stderr = null;
return err;
});
function createChild(options, callback) {
const [cmd, opts] = common.escapePOSIXShell`"${process.execPath}" "${__filename}" child`;
options = { ...options, env: { ...opts?.env, ...options.env } };
return cp.exec(cmd, options, common.mustCall(callback));
}
test('normal execution of a child process is handled', (_, done) => {
createChild({}, (err, stdout, stderr) => {
assert.strictEqual(err, null);
assert.strictEqual(stdout, '');
assert.strictEqual(stderr, '');
done();
});
});
test('execution with an error event is handled', (_, done) => {
const error = new Error('foo');
const child = createChild({}, (err, stdout, stderr) => {
assert.strictEqual(err, error);
assert.strictEqual(stdout, '');
assert.strictEqual(stderr, '');
done();
});
child.emit('error', error);
});
test('execution with a killed process is handled', (_, done) => {
createChild({ timeout: 1 }, (err, stdout, stderr) => {
assert.strictEqual(err.killed, true);
assert.strictEqual(stdout, '');
assert.strictEqual(stderr, '');
done();
});
});