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nodejs/test/parallel/test-worker-process-env.js
Ruben Bridgewater e038d6a1cd
test: refactor common.expectsError
This completely refactors the `expectsError` behavior: so far it's
almost identical to `assert.throws(fn, object)` in case it was used
with a function as first argument. It had a magical property check
that allowed to verify a functions `type` in case `type` was passed
used in the validation object. This pattern is now completely removed
and `assert.throws()` should be used instead.

The main intent for `common.expectsError()` is to verify error cases
for callback based APIs. This is now more flexible by accepting all
validation possibilites that `assert.throws()` accepts as well. No
magical properties exist anymore. This reduces surprising behavior
for developers who are not used to the Node.js core code base.

This has the side effect that `common` is used significantly less
frequent.

PR-URL: https://github.com/nodejs/node/pull/31092
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
2019-12-31 15:54:20 +01:00

56 lines
2.0 KiB
JavaScript

'use strict';
const common = require('../common');
const child_process = require('child_process');
const assert = require('assert');
const { Worker, workerData } = require('worker_threads');
// Test for https://github.com/nodejs/node/issues/24947.
if (!workerData && process.argv[2] !== 'child') {
process.env.SET_IN_PARENT = 'set';
assert.strictEqual(process.env.SET_IN_PARENT, 'set');
new Worker(__filename, { workerData: 'runInWorker' })
.on('exit', common.mustCall(() => {
// Env vars from the child thread are not set globally.
assert.strictEqual(process.env.SET_IN_WORKER, undefined);
}));
process.env.SET_IN_PARENT_AFTER_CREATION = 'set';
new Worker(__filename, {
workerData: 'resetEnv',
env: { 'MANUALLY_SET': true }
});
assert.throws(() => {
new Worker(__filename, { env: 42 });
}, {
name: 'TypeError',
code: 'ERR_INVALID_ARG_TYPE',
message: 'The "options.env" property must be of type object or ' +
'one of undefined, null, or worker_threads.SHARE_ENV. Received type ' +
'number (42)'
});
} else if (workerData === 'runInWorker') {
// Env vars from the parent thread are inherited.
assert.strictEqual(process.env.SET_IN_PARENT, 'set');
assert.strictEqual(process.env.SET_IN_PARENT_AFTER_CREATION, undefined);
process.env.SET_IN_WORKER = 'set';
assert.strictEqual(process.env.SET_IN_WORKER, 'set');
Object.defineProperty(process.env, 'DEFINED_IN_WORKER', { value: 42 });
assert.strictEqual(process.env.DEFINED_IN_WORKER, '42');
const { stderr } =
child_process.spawnSync(process.execPath, [__filename, 'child']);
assert.strictEqual(stderr.toString(), '', stderr.toString());
} else if (workerData === 'resetEnv') {
assert.deepStrictEqual(Object.keys(process.env), ['MANUALLY_SET']);
assert.strictEqual(process.env.MANUALLY_SET, 'true');
} else {
// Child processes inherit the parent's env, even from Workers.
assert.strictEqual(process.env.SET_IN_PARENT, 'set');
assert.strictEqual(process.env.SET_IN_WORKER, 'set');
}