test: use tmpDir instead of fixtures in readdir

This patch

 - makes the test use tmp directory instead of the fixtures directory,
 - simplifies the code
 - moves the test to `parallel`.

PR-URL: https://github.com/nodejs/node/pull/2587

Reviewed-By: Rich Trott <rtrott@gmail.com>

test/parallel/test-fs-readdir.js

@@ -0,0 +1,36 @@
+'use strict';
+
+const common = require('../common');
+const assert = require('assert');
+const path = require('path');
+const fs = require('fs');
+
+const readdirDir = common.tmpDir;
+const files = ['empty', 'files', 'for', 'just', 'testing'];
+
+// Make sure tmp directory is clean
+common.refreshTmpDir();
+
+// Create the necessary files
+files.forEach(function(currentFile) {
+  fs.closeSync(fs.openSync(readdirDir + '/' + currentFile, 'w'));
+});
+
+// Check the readdir Sync version
+assert.deepEqual(files, fs.readdirSync(readdirDir).sort());
+
+// Check the readdir async version
+fs.readdir(readdirDir, common.mustCall(function(err, f) {
+  assert.ifError(err);
+  assert.deepEqual(files, f.sort());
+}));
+
+// readdir() on file should throw ENOTDIR
+// https://github.com/joyent/node/issues/1869
+assert.throws(function() {
+  fs.readdirSync(__filename);
+}, /Error: ENOTDIR: not a directory/);
+
+fs.readdir(__filename, common.mustCall(function(e) {
+  assert.equal(e.code, 'ENOTDIR');
+}));

test/sequential/test-readdir.js

@@ -1,71 +0,0 @@
-'use strict';
-var common = require('../common');
-var assert = require('assert');
-var path = require('path');
-var fs = require('fs');
-
-var got_error = false,
-    readdirDir = path.join(common.fixturesDir, 'readdir');
-
-var files = ['are',
-             'dir',
-             'empty',
-             'files',
-             'for',
-             'just',
-             'testing.js',
-             'these'];
-
-
-console.log('readdirSync ' + readdirDir);
-var f = fs.readdirSync(readdirDir);
-console.dir(f);
-assert.deepEqual(files, f.sort());
-
-
-console.log('readdir ' + readdirDir);
-fs.readdir(readdirDir, function(err, f) {
-  if (err) {
-    console.log('error');
-    got_error = true;
-  } else {
-    console.dir(f);
-    assert.deepEqual(files, f.sort());
-  }
-});
-
-process.on('exit', function() {
-  assert.equal(false, got_error);
-  console.log('exit');
-});
-
-
-// readdir() on file should throw ENOTDIR
-// https://github.com/joyent/node/issues/1869
-(function() {
-  var has_caught = false;
-
-  try {
-    fs.readdirSync(__filename);
-  }
-  catch (e) {
-    has_caught = true;
-    assert.equal(e.code, 'ENOTDIR');
-  }
-
-  assert(has_caught);
-})();
-
-
-(function() {
-  var readdir_cb_called = false;
-
-  fs.readdir(__filename, function(e) {
-    readdir_cb_called = true;
-    assert.equal(e.code, 'ENOTDIR');
-  });
-
-  process.on('exit', function() {
-    assert(readdir_cb_called);
-  });
-})();