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// Flags: --unhandled-rejections=throw
'use strict';
const common = require('../common');
const Countdown = require('../common/countdown');
const assert = require('assert');
// Verify that the unhandledRejection handler prevents triggering
// uncaught exceptions
const err1 = new Error('One');
const errors = [err1, null];
const ref = new Promise(() => {
throw err1;
});
// Explicitly reject `null`.
Promise.reject(null);
process.on('warning', common.mustNotCall('warning'));
process.on('rejectionHandled', common.mustNotCall('rejectionHandled'));
process.on('exit', assert.strictEqual.bind(null, 0));
process.on('uncaughtException', common.mustNotCall('uncaughtException'));
const timer = setTimeout(() => console.log(ref), 1000);
const counter = new Countdown(2, () => {
clearTimeout(timer);
});
process.on('unhandledRejection', common.mustCall((err) => {
counter.dec();
const knownError = errors.shift();
assert.deepStrictEqual(err, knownError);
}, 2));
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