11cb0ef41Sopenharmony_ci'use strict'; 21cb0ef41Sopenharmony_ci 31cb0ef41Sopenharmony_ciconst common = require('../common'); 41cb0ef41Sopenharmony_ciconst assert = require('assert'); 51cb0ef41Sopenharmony_ci 61cb0ef41Sopenharmony_ciconst { PerformanceObserver, performance } = require('perf_hooks'); 71cb0ef41Sopenharmony_ciconst DELAY = 1000; 81cb0ef41Sopenharmony_ciconst ALLOWED_MARGIN = 10; 91cb0ef41Sopenharmony_ci 101cb0ef41Sopenharmony_ciconst expected = ['Start to Now', 'A to Now', 'A to B']; 111cb0ef41Sopenharmony_ciconst obs = new PerformanceObserver(common.mustCall((items) => { 121cb0ef41Sopenharmony_ci items.getEntries().forEach(({ name, duration }) => { 131cb0ef41Sopenharmony_ci assert.ok(duration > (DELAY - ALLOWED_MARGIN)); 141cb0ef41Sopenharmony_ci assert.strictEqual(expected.shift(), name); 151cb0ef41Sopenharmony_ci }); 161cb0ef41Sopenharmony_ci})); 171cb0ef41Sopenharmony_ciobs.observe({ entryTypes: ['measure'] }); 181cb0ef41Sopenharmony_ci 191cb0ef41Sopenharmony_ciperformance.mark('A'); 201cb0ef41Sopenharmony_cisetTimeout(common.mustCall(() => { 211cb0ef41Sopenharmony_ci performance.measure('Start to Now'); 221cb0ef41Sopenharmony_ci performance.measure('A to Now', 'A'); 231cb0ef41Sopenharmony_ci 241cb0ef41Sopenharmony_ci performance.mark('B'); 251cb0ef41Sopenharmony_ci performance.measure('A to B', 'A', 'B'); 261cb0ef41Sopenharmony_ci}), DELAY); 27