node/test/sequential/test-timers-set-interval-ex...

26 lines
577 B
JavaScript

// Flags: --expose-internals
'use strict';
require('../common');
const assert = require('assert');
const { sleep } = require('internal/util');
let cntr = 0;
let first;
const t = setInterval(() => {
cntr++;
if (cntr === 1) {
sleep(100);
// Ensure that the event loop passes before the second interval
setImmediate(() => assert.strictEqual(cntr, 1));
first = Date.now();
} else if (cntr === 2) {
assert(Date.now() - first < 100);
clearInterval(t);
}
}, 100);
const t2 = setInterval(() => {
if (cntr === 2) {
clearInterval(t2);
}
}, 100);