44 lines
1.3 KiB
JavaScript
44 lines
1.3 KiB
JavaScript
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'use strict';
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const common = require('../common');
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const assert = require('assert');
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const { once } = require('events');
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const v8 = require('v8');
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const { Worker } = require('worker_threads');
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// Verify that Workers don't care about --stack-size, as they have their own
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// fixed and known stack sizes.
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async function runWorker() {
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const empiricalStackDepth = new Uint32Array(new SharedArrayBuffer(4));
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const worker = new Worker(`
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const { workerData: { empiricalStackDepth } } = require('worker_threads');
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function f() {
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empiricalStackDepth[0]++;
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f();
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}
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f();`, {
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eval: true,
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workerData: { empiricalStackDepth }
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});
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const [ error ] = await once(worker, 'error');
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common.expectsError({
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constructor: RangeError,
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message: 'Maximum call stack size exceeded'
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})(error);
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return empiricalStackDepth[0];
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}
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(async function() {
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v8.setFlagsFromString('--stack-size=500');
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const w1stack = await runWorker();
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v8.setFlagsFromString('--stack-size=1000');
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const w2stack = await runWorker();
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// Make sure the two stack sizes are within 10 % of each other, i.e. not
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// affected by the different `--stack-size` settings.
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assert(Math.max(w1stack, w2stack) / Math.min(w1stack, w2stack) < 1.1,
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`w1stack = ${w1stack}, w2stack ${w2stack} are too far apart`);
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})().then(common.mustCall());
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