'use strict';
const common = require('../common');
const { strictEqual, throws } = require('assert');const { setUnrefTimeout } = require('internal/timers');
{ let called = false; const timer = setTimeout(common.mustCall(() => { called = true; }), 1); timer.unref();
setTimeout(common.mustCall(() => { strictEqual(called, false, 'unref()\'d timer returned before check'); }), 1);
strictEqual(timer.refresh(), timer);}
{ [null, true, false, 0, 1, NaN, '', 'foo', {}, Symbol()].forEach((cb) => { throws( () => setUnrefTimeout(cb), { code: 'ERR_INVALID_ARG_TYPE', } ); });}
{ let called = false; const timer = setUnrefTimeout(common.mustCall(() => { called = true; }), 1);
setUnrefTimeout(common.mustCall(() => { strictEqual(called, false, 'unref pooled timer returned before check'); }), 1);
strictEqual(timer.refresh(), timer);}
{ let called = false; const timer = setTimeout(common.mustCall(() => { called = true; }), 1);
setTimeout(common.mustCall(() => { strictEqual(called, false, 'pooled timer returned before check'); }), 1);
strictEqual(timer.refresh(), timer);}
{ let called = false; const timer = setTimeout(common.mustCall(() => { if (!called) { called = true; process.nextTick(common.mustCall(() => { timer.refresh(); strictEqual(timer.hasRef(), true); })); } }, 2), 1);}
{ let called = 0; const timer = setInterval(common.mustCall(() => { called += 1; if (called === 2) { clearInterval(timer); } }, 2), 1);
setTimeout(common.mustCall(() => { strictEqual(called, 0, 'pooled timer returned before check'); }), 1);
strictEqual(timer.refresh(), timer);}