1// Flags: --expose-internals 2'use strict'; 3require('../common'); 4const assert = require('assert'); 5const { sleep } = require('internal/util'); 6 7[undefined, null, '', {}, true, false].forEach((value) => { 8 assert.throws( 9 () => { sleep(value); }, 10 /The "msec" argument must be of type number/ 11 ); 12}); 13 14[-1, 3.14, NaN, 4294967296].forEach((value) => { 15 assert.throws( 16 () => { sleep(value); }, 17 /The value of "msec" is out of range/ 18 ); 19}); 20