Added Key( obj ) Assert

README.md

@@ -197,6 +197,7 @@ new Assert().Regexp( value );
 new Assert().Required();
 new Assert().Unique();
 new Assert().Unique( { key: value } );
+new Assert().Key( { key1: val1, ... } );
 
 // in extras.js
 new Assert().Eql( object );

dist/validator.js

@@ -1,7 +1,7 @@
 /*!
 * validator.js
 * Guillaume Potier - <guillaume@wisembly.com>
-* Version 1.0.0 - built Sun Aug 03 2014 17:42:31
+* Version 1.0.0 - built Tue Aug 05 2014 17:14:57
 * MIT Licensed
 *
 */
@@ -489,7 +489,7 @@
         var result, validator = new Validator(), count = 0, failures = {}, groups = this.groups.length ? this.groups : group;
 
         if ( !_isArray( collection ) )
-          throw new Violation( this, array, { value: Validator.errorCode.must_be_an_array } );
+          throw new Violation( this, collection, { value: Validator.errorCode.must_be_an_array } );
 
         for ( var i = 0; i < collection.length; i++ ) {
           result = this.constraint ?
@@ -628,6 +628,24 @@
       return this;
     },
 
+    Key: function ( obj ) {
+      this.__class__ = 'Key';
+
+      if ( 'object' !== typeof obj )
+        throw new Error( 'Must pass object to Key Assertion' );
+
+      this.obj = obj;
+
+      this.validate = function ( value ) {
+        if ( true !== ( obj.hasOwnProperty( value ) ) )
+          throw new Violation( this, value, { obj: this.obj } );
+
+        return true;
+      };
+
+      return this;
+    },
+
     Length: function ( boundaries ) {
       this.__class__ = 'Length';
 

src/validator.js

@@ -628,6 +628,24 @@
       return this;
     },
 
+    Key: function ( obj ) {
+      this.__class__ = 'Key';
+
+      if ( 'object' !== typeof obj )
+        throw new Error( 'Must pass object to Key Assertion' );
+
+      this.obj = obj;
+
+      this.validate = function ( value ) {
+        if ( true !== ( obj.hasOwnProperty( value ) ) )
+          throw new Violation( this, value, { obj: this.obj } );
+
+        return true;
+      };
+
+      return this;
+    },
+
     Length: function ( boundaries ) {
       this.__class__ = 'Length';
 

tests/tests.js

@@ -494,6 +494,14 @@ var Suite = function ( Validator, expect, extras ) {
         expect( validate( 7, assert ).show() ).to.eql( { assert: 'LessThanOrEqual', value: 7, violation: { threshold: 5 } } );
       } )
 
+      it( 'Key', function () {
+        assert = new Assert().Key( { info: null, test: null } );
+
+        expect( validate( 'info', assert ) ).to.be( true );
+        expect( validate( 'test', assert ) ).to.be( true );
+        expect( validate( 'key', assert ).show() ).to.eql( { assert: 'Key', value: 'key', violation: { obj: { info: null, test: null } } } );
+      } )
+
       if ( !extras )
         return;