unit test review

Author: bjouhier

test/simple/test-regress-GH-9161.js

@@ -24,27 +24,20 @@ var assert = require('assert');
 var path = require('path');
 var fs = require('fs');
 var tmp = common.tmpDir;
-if (!fs.existsSync(tmp)) fs.mkdirSync(tmp);
+if (!fs.existsSync(tmp)) 
+  fs.mkdirSync(tmp);
 var filename = path.resolve(tmp, 'truncate-file.txt');
 
 var success = 0;
 
-fs.writeFile(filename, 'hello world', 'utf8', function(err) {
+fs.writeFileSync(filename, 'hello world', 'utf8');
+var fd = fs.openSync(filename, 'r+');
+fs.truncate(fd, 5, function(err) {
   if (err) throw err;
-  fs.open(filename, 'r+', function(err, fd) {
-    if (err) throw err;
-    fs.truncate(fd, 5, function(err) {
-      if (err) throw err;
-      fs.close(fd, function(err) {
-        if (err) throw err;
-        var r = fs.readFile(filename, 'utf8', function(err, result) {
-          if (err) throw err;
-          assert.equal(result, 'hello');
-          success++;
-        });
-      })
-    });
-  });
+  fs.closeSync(fd);
+  var result = fs.readFileSync(filename, 'utf8');
+  assert.equal(result, 'hello');
+  success++;
 });
 
 process.on('exit', function() {