'use strict'; const common = require('../common'); const assert = require('assert'); const path = require('path'); const fs = require('fs'); const filename = path.join(common.fixturesDir, 'does_not_exist.txt'); fs.readFile(filename, 'latin1', common.mustCall(function(err, content) { assert.ok(err); assert.strictEqual(err.code, 'ENOENT'); }));