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| Current File : //proc/self/root/home/ubuntu/node-v16.18.1/test/known_issues/test-vm-timeout-escape-nexttick.js |
'use strict';
// https://github.com/nodejs/node/issues/3020
// Promises, nextTick, and queueMicrotask allow code to escape the timeout
// set for runInContext, runInNewContext, and runInThisContext
const common = require('../common');
const assert = require('assert');
const vm = require('vm');
const NS_PER_MS = 1000000n;
const hrtime = process.hrtime.bigint;
const nextTick = process.nextTick;
const waitDuration = common.platformTimeout(100n);
function loop() {
const start = hrtime();
while (1) {
const current = hrtime();
const span = (current - start) / NS_PER_MS;
if (span >= waitDuration) {
throw new Error(
`escaped timeout at ${span} milliseconds!`);
}
}
}
// The bug won't happen 100% reliably so run the test a small number of times to
// make sure we catch it if the bug exists.
for (let i = 0; i < 4; i++) {
assert.throws(() => {
vm.runInNewContext(
'nextTick(loop); loop();',
{
hrtime,
nextTick,
loop
},
{ timeout: common.platformTimeout(10) }
);
}, {
code: 'ERR_SCRIPT_EXECUTION_TIMEOUT'
});
}
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