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| Current File : //proc/self/root/home/ubuntu/node-v16.18.1/test/parallel/test-promise-unhandled-warn.js |
// Flags: --unhandled-rejections=warn
'use strict';
const common = require('../common');
const assert = require('assert');
// Verify that ignoring unhandled rejection works fine and that no warning is
// logged.
new Promise(() => {
throw new Error('One');
});
Promise.reject('test');
function lookForMeInStackTrace() {
Promise.reject(new class ErrorLike {
constructor() {
Error.captureStackTrace(this);
this.message = 'ErrorLike';
}
}());
}
lookForMeInStackTrace();
// Unhandled rejections trigger two warning per rejection. One is the rejection
// reason and the other is a note where this warning is coming from.
process.on('warning', common.mustCall((reason) => {
if (reason.message.includes('ErrorLike')) {
assert.match(reason.stack, /lookForMeInStackTrace/);
}
}, 6));
process.on('uncaughtException', common.mustNotCall('uncaughtException'));
process.on('rejectionHandled', common.mustCall(3));
process.on('unhandledRejection', (reason, promise) => {
// Handle promises but still warn!
promise.catch(() => {});
});
setTimeout(common.mustCall(), 2);
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