Throw an error for invalid date format

README.md

@@ -3,6 +3,10 @@ FieldVal-JS
 
 The FieldVal-JS library allows you to easily validate data and provide readable and structured error reports.
 
+[![MinoHubs](https://www.minohubs.com/badge/fieldval/support.svg)](https://www.minohubs.com/hub/fieldval)
+
+[![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/FieldVal/fieldval-js?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
 Documentation and Examples
 =============
 
@@ -17,4 +21,4 @@ This project uses [gulp.js](http://gulpjs.com/) to build and [mocha](http://visi
 npm install
 gulp js
 mocha test/test
-```
+```

src/DateVal.js

@@ -72,6 +72,10 @@ var DateVal = (function(){
         date_with_format_array: function(date, format_array){
             //Takes a Javascript Date object
 
+            if (!Array.isArray(format_array)) {
+                throw new Error('Not a valid date format');
+            }
+
             var date_string = "";
 
             for(var i = 0; i < format_array.length; i++){

test/DateVal_test.js

@@ -142,6 +142,19 @@ describe('DateVal', function() {
 
             assert.equal(null, my_validator.end());
         })
+
+        it('should throw an exception for invalid date format', function() {
+
+            var my_validator = new FieldVal({
+                "my_format": "yyy-MM-dd hh:mm:ss"
+            })
+
+            var format_array = my_validator.get("my_format", BasicVal.string(true), BasicVal.date_format());
+
+            var test_date = new Date(Date.UTC(2014, 08, 10, 16, 05, 38));//'Wed Sep 10 2014 16:05:38 GMT+0100 (BST)');
+
+            assert.throws(function() { DateVal.date_with_format_array(test_date, format_array); }, Error);
+        })
     })
 
     describe('pad_to_valid()', function() {