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test: improve code in test-fs-readfile-error

* use const instead of var
* use common.mustCall to control the functions execution automatically
* use assert.strictEqual instead of assert.equal
* use assert.notStrictEqual instead of assert.notEqual
* use arrow functions

PR-URL: #10367
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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edsadr authored and lpinca committed Dec 21, 2016
1 parent 89c8f58 commit 499efbd085975ee603f7a54edbfd7536de566d69
Showing with 13 additions and 13 deletions.
  1. +13 −13 test/parallel/test-fs-readfile-error.js
@@ -1,8 +1,8 @@
'use strict';
var common = require('../common');
var assert = require('assert');
var exec = require('child_process').exec;
var path = require('path');
const common = require('../common');
const assert = require('assert');
const exec = require('child_process').exec;
const path = require('path');
// `fs.readFile('/')` does not fail on FreeBSD, because you can open and read
// the directory there.
@@ -12,23 +12,23 @@ if (process.platform === 'freebsd') {
}
function test(env, cb) {
var filename = path.join(common.fixturesDir, 'test-fs-readfile-error.js');
var execPath = '"' + process.execPath + '" "' + filename + '"';
var options = { env: Object.assign(process.env, env) };
exec(execPath, options, function(err, stdout, stderr) {
const filename = path.join(common.fixturesDir, 'test-fs-readfile-error.js');
const execPath = '"' + process.execPath + '" "' + filename + '"';
const options = { env: Object.assign(process.env, env) };
exec(execPath, options, common.mustCall((err, stdout, stderr) => {
assert(err);
assert.equal(stdout, '');
assert.notEqual(stderr, '');
assert.strictEqual(stdout, '');
assert.notStrictEqual(stderr, '');
cb('' + stderr);
});
}));
}
test({ NODE_DEBUG: '' }, common.mustCall(function(data) {
test({ NODE_DEBUG: '' }, common.mustCall((data) => {
assert(/EISDIR/.test(data));
assert(!/test-fs-readfile-error/.test(data));
}));
test({ NODE_DEBUG: 'fs' }, common.mustCall(function(data) {
test({ NODE_DEBUG: 'fs' }, common.mustCall((data) => {
assert(/EISDIR/.test(data));
assert(/test-fs-readfile-error/.test(data));
}));

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