1'use strict'; 2 3const common = require('../common'); 4const assert = require('assert'); 5const fs = require('fs'); 6 7const encoding = 'foo-8'; 8const filename = 'bar.txt'; 9assert.throws( 10 () => fs.readFile(filename, { encoding }, common.mustNotCall()), 11 { code: 'ERR_INVALID_OPT_VALUE_ENCODING', name: 'TypeError' } 12); 13