refactoring the testing process

test/lib/JsonFile.js

@@ -1,5 +1,5 @@
-"use strict;"
-var fs = require('fs');
+'use strict';
+
 var mout = require('mout');	
 var extend = mout.object.deepMixIn;
 var forOwn = mout.object.forOwn;
@@ -14,19 +14,18 @@ var JsonFile = module.exports = function JsonFile(file){
 		return new JsonFile(file);
 
 	this._file = String(file);
-	this._errors = this._errors || [];
-	this._json = this._json || {};
+	this._errors = [];
+	this._json = {};
 
 	if( !(/\.json$/.test(file)) ){
 		this.error(this._file + ' is not json file');
 	
 	} else {
 
-		try{
+		try {
 			extend(this._json, require(this._file));
 
 		} catch(e) {
-
 			this.error(e.message);
 		}
 
@@ -38,12 +37,12 @@ JsonFile.prototype.error = function(msg){
 	this._errors.push(msg);
 
 	return this;
-}
+};
 
 JsonFile.prototype.errors = function(){
 
 	return this._errors;
-}
+};
 
 JsonFile.prototype.forEach = function(fn){