node/test/parallel/test-repl-sigint.js
James M Snell 8caa1dcee6 test: rely less on duplicative common test harness utilities
There are several cleanups here that are not just style nits...

1. The `common.isMainThread` was just a passthrough to the
   `isMainThread` export on the worker_thread module. It's
   use was inconsistent and just obfuscated the fact that
   the test file depend on the `worker_threads` built-in.
   By eliminating it we simplify the test harness a bit and
   make it clearer which tests depend on the worker_threads
   check.
2. The `common.isDumbTerminal` is fairly unnecesary since
   that just wraps a public API check.
3. Several of the `common.skipIf....` checks were inconsistently
   used and really don't need to be separate utility functions.

A key part of the motivation here is to work towards making more
of the tests more self-contained and less reliant on the common
test harness where possible.

PR-URL: https://github.com/nodejs/node/pull/56712
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
2025-01-25 07:23:09 +00:00

53 lines
1.4 KiB
JavaScript

'use strict';
const common = require('../common');
if (common.isWindows) {
// No way to send CTRL_C_EVENT to processes from JS right now.
common.skip('platform not supported');
}
const { isMainThread } = require('worker_threads');
if (!isMainThread) {
common.skip('No signal handling available in Workers');
}
const assert = require('assert');
const spawn = require('child_process').spawn;
process.env.REPL_TEST_PPID = process.pid;
const child = spawn(process.execPath, [ '-i' ], {
stdio: [null, null, 2]
});
let stdout = '';
child.stdout.setEncoding('utf8');
child.stdout.on('data', function(c) {
stdout += c;
});
child.stdout.once('data', common.mustCall(() => {
process.on('SIGUSR2', common.mustCall(() => {
process.kill(child.pid, 'SIGINT');
child.stdout.once('data', common.mustCall(() => {
// Make sure state from before the interruption is still available.
child.stdin.end('a*2*3*7\n');
}));
}));
child.stdin.write('a = 1001;' +
'process.kill(+process.env.REPL_TEST_PPID, "SIGUSR2");' +
'while(true){}\n');
}));
child.on('close', function(code) {
assert.strictEqual(code, 0);
const expected = 'Script execution was interrupted by `SIGINT`';
assert.ok(
stdout.includes(expected),
`Expected stdout to contain "${expected}", got ${stdout}`
);
assert.ok(
stdout.includes('42042\n'),
`Expected stdout to contain "42042", got ${stdout}`
);
});