nodejs/test/parallel/test-process-env-tz.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

51 lines
1.5 KiB
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const { isMainThread } = require('worker_threads');
if (!isMainThread) {
common.skip('process.env.TZ is not intercepted in Workers');
}
if (common.isWindows) { // Using a different TZ format.
common.skip('todo: test on Windows');
}
const date = new Date('2018-04-14T12:34:56.789Z');
process.env.TZ = 'Europe/Amsterdam';
if (date.toString().includes('(Europe)'))
common.skip('not using bundled ICU'); // Shared library or --with-intl=none.
if ('Sat Apr 14 2018 12:34:56 GMT+0000 (GMT)' === date.toString())
common.skip('missing tzdata'); // Alpine buildbots lack Europe/Amsterdam.
if (date.toString().includes('(Central European Time)') ||
date.toString().includes('(CET)')) {
// The AIX and SmartOS buildbots report 2018 CEST as CET
// because apparently for them that's still the deep future.
common.skip('tzdata too old');
}
// Text representation of timezone depends on locale in environment
assert.match(
date.toString(),
/^Sat Apr 14 2018 14:34:56 GMT\+0200 \(.+\)$/);
process.env.TZ = 'Europe/London';
assert.match(
date.toString(),
/^Sat Apr 14 2018 13:34:56 GMT\+0100 \(.+\)$/);
process.env.TZ = 'Etc/UTC';
assert.match(
date.toString(),
/^Sat Apr 14 2018 12:34:56 GMT\+0000 \(.+\)$/);
// Just check that deleting the environment variable doesn't crash the process.
// We can't really check the result of date.toString() because we don't know
// the default time zone.
delete process.env.TZ;
date.toString();