nodejs-mozilla/test/known_issues/test-vm-timeout-escape-prom...

40 lines
850 B
JavaScript

'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
require('../common');
const assert = require('assert');
const vm = require('vm');
const NS_PER_MS = 1000000n;
const hrtime = process.hrtime.bigint;
function loop() {
const start = hrtime();
while (1) {
const current = hrtime();
const span = (current - start) / NS_PER_MS;
if (span >= 100n) {
throw new Error(
`escaped timeout at ${span} milliseconds!`);
}
}
}
assert.throws(() => {
vm.runInNewContext(
'Promise.resolve().then(loop); loop();',
{
hrtime,
loop
},
{ timeout: 5 }
);
}, {
code: 'ERR_SCRIPT_EXECUTION_TIMEOUT',
message: 'Script execution timed out after 5ms'
});