blob: 06e04cc219c7fd8e87c12b6b33415bd4a7906c68 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
'use strict';
const common = require('../common');
const assert = require('assert');
const { PerformanceObserver, performance } = require('perf_hooks');
const DELAY = 1000;
const expected = ['Start to Now', 'A to Now', 'A to B'];
const obs = new PerformanceObserver(common.mustCall((items) => {
const entries = items.getEntries();
const { name, duration } = entries[0];
assert.ok(duration > DELAY);
assert.strictEqual(expected.shift(), name);
}, 3));
obs.observe({ entryTypes: ['measure'] });
performance.mark('A');
setTimeout(common.mustCall(() => {
performance.measure('Start to Now');
performance.measure('A to Now', 'A');
performance.mark('B');
performance.measure('A to B', 'A', 'B');
}), DELAY);
|
