Use rhino mocks

Rhino mocks is a very important component in TDD (test-driven development ).ArticleThis section briefly describes how to use the mock component. Create two projects,

1. Mock for abstract classes
   Add productbase class Using System;

   NamespaceRhinomockproject
   {
   Public Abstract ClassProductbase
   {
   Public Abstract StringName {Get;Set;}

   Public Abstract DecimalPrice {Get;Set;}

   Public Abstract VoidSave ();
   }
   } 

   [testmethod]
   Public void teststubabstract ()
   {< br> productbase Product = mockrepository. generatestub ();
   product. name = " laptop computer " ;
   product. price = 3200.00 m ;

   Assert. areequal (3200.00 m, Product. Price );
   }

2. Mock OF THE INTERFACE Public Interface Iproduct
   {
   String Name { Get ; Set ;}

   DecimalPrice {Get;Set;}
   }

   UsingSystem;
   UsingSystem. Collections. Generic;
   UsingSystem. LINQ;
   UsingSystem. text;

   namespace rhinomockproject
   {< br> Public class productmanager
   {< br> Public static void doubleprice (iproduct product)
   {< br> product. price * = 2 ;
   }< BR >}

   [testmethod]
   Public void teststubinterface ()
   {< br> decimal price = 3200.00 m ;
   iproduct Product = mockrepository. generatestub ();
   product. name = " laptop computer " ;
   product. price = price;

   Productmanager. doubleprice (product );
   Assert. areequal (price *2, Product. Price );
   }

3. For mock with the return value method, Make sure to mock the objects with returned values,Mockrepository must be instantiated Using System;
   Using System. Collections. Generic;
   Using System. LINQ;
   Using System. text;

   NamespaceRhinomockproject
   {
   Public InterfaceIproductrepository
   {
   Iproduct get (IntProductid );

   Ienumerable <iproduct> select ();

   BoolSave (iproduct product );
   }
   }

   Private Ienumerable <iproduct> _ fakeproducts = New List <iproduct>
   {
   New Product {name = " Steak " , Price = 9.85 m },
   New Product {name = " Milk " , Price = 2.02 m },
   New Product {name = " Diapers " , Price = 33.07 m }
   };

   [testmethod]
   Public void teststubinterfacemethod ()
   {< br> mockrepository mocks = New mockrepository ();
   iproductrepository products = mocks. stub ();

   Using(Mocks. Record ())
   {
   Setupresult. For (products. Select (). Return (_ fakeproducts );
   }

   VaRResults = products. Select ();

   Assert. areequal (3, Results. Count ());
   }

   multiple mock return values [testmethod]
   Public void teststubmultiplereturn ()
   {< br> mockrepository mocks = New mockrepository ();
   iproductrepository products = mocks. stub ();

   using (mocks. record ()
   {< br> setupresult
   . for (products. get ( 2 )
   . return ( New product {name = " beer " , price = 12.99 m });

   setupresult
   . for (products. get ( 12 )
   . return ( New product {name = " steak " , price = 8.02 m });
   }

   // test
   iproduct product1 = products. get ( 2 );
   assert. areequal ( " beer " , product1.name);

   Iproduct product2 = products. Get (12);
   Assert. areequal ("Steak", Product2.name );

   Iproduct product3 = products. Get (13);
   Assert. isnull (product3 );
   }

   [Testmethod]
   Public VoidTeststubignorearguments ()
   {
   Mockrepository mocks =NewMockrepository ();
   Iproductrepository products = mocks. Stub <iproductrepository> ();

   Using (Mocks. Record ())
   {
   Setupresult
   . For (products. Get ( 1 ))
   . Ignorearguments ()
   . Return ( New Product {name = " Beer " , Price =12.99 m });
   }

   //Test
   Iproduct product1 = products. Get (2);
   Assert. areequal ("Beer", Product1.name );

   Iproduct product2 = products. Get (12);
   Assert. areequal ("Beer", Product2.name );
   }

   This article briefly introduces the application of the rahino mock component in TDD,CodeDownload: http://files.cnblogs.com/jackhuclan/ConsoleApplication6.rar
   Complete example, see http://stephenwalther.com/archive/2008/03/23/tdd-introduction-to-rhino-mocks.aspx