'use strict'; const common = require('../common'); const fs = require('fs'); const callbackThrowValues = [null, true, false, 0, 1, 'foo', /foo/, [], {}]; function testMakeStatsCallback(cb) { return function() { // fs.stat() calls makeStatsCallback() on its second argument fs.stat(__filename, cb); }; } // Verify the case where a callback function is provided testMakeStatsCallback(common.mustCall())(); function invalidCallbackThrowsTests() { callbackThrowValues.forEach((value) => { common.expectsError(testMakeStatsCallback(value), { code: 'ERR_INVALID_CALLBACK', type: TypeError }); }); } invalidCallbackThrowsTests();