Skip to main content

Test driven development


More than last 12 months I am a great sponsor of the test driven development.  But how i become a great devotee of TDD is very much interesting. I was given task to restructure the existing system. This is one of the most important features in our system. When i seen the existing code it was in a malicious situation. Lots of unwanted, complex complicated loops. So before starting the reconstructing the whole team sit together and decided we are going to start something new. It might slow down the process initially but will produce the quality work.  Before witting the method we identified the feature's specification and requirements and exception handling phases. Then test cases  are  written  based on the requirement.  Then started working on the methods based on the test cases. First the entire test will fail because the method is written afterward.

Test method example

public void MethodWeAretesting_DescriptionOfInput_ReturnValueAndExpectedBehavior()

{

       // Prepare test environment (i.e.: create test data)

        ...

        // Calling method that we are testing

        ...    

       // Assertions

}

/// [TEST SCRIPT =test name ]

Public return type MethodName()

{



}

Once we written the methods we clearly given the indication which test method need to execute after making the change by giving /// [TEST SCRIPT =test name ]

Comments

Popular posts from this blog

How to write secure mvc application using encrypting URL

There are lots ways available to write the secure Mvc application. In my experience I came across lots of secure application in public facing. I want to tell about some of the mechanism I followed.
1- encrypting the URL Parameters and preserving id's encrypted on the client side
1- I always make sure if I pass Id or any sensitive data into the view always make sure it's encrypted. By doing so make sure if we forced to use HTML.hidden or HTML.hidden for have the encrypted values, in action link if I pass any parameters from the client side (eg:- edit or create or navigating between different actions we can make sure that all the values are encrypted)
During the design of the actions results if it's http get I usually encrypt the sensitive data
[httpget]
Public actionresult display()
{
TestModel testModel=new TestModel();
testModel.id= encrypt(id);
Return View(testModel);
}
[httppost]
Public ActionResult Display(string id)
{
Guid d_id= new Guid(decrypt(id));
// do operati…

How to add a stored procedure in Entity Framework

Step1- Open the .edmx file
Step2- Right click in .edmx file and select Update Model from Database


Step3- Select Add tab, select Stored Procedures and select the procedure you want to add and click finish as shown in below figure a

Step4- Build the Entity Project to make sure nothing is broke

Step5- Right click on .edmx file and  select Model Browser



Step6- Model Browser Popup will appear as  below figure. Click on the Strored Procedures in PricingToolModel.Stroe and click the newly added SP (it will appear here)
Step7- The Add Function Import screen will appear

Based on the return we can set up.

If you are returning a multiple column Click on the Get Column Information First, then click the new Complex Type. After that you can see the Return of Collection will select the Complex and a complex type is generated by EF

If its returning scalar you can select which return type like int, string etc...

If its return entitty (means table) please select the correct table from the list..

Click…

Compiled Query- Improve the performance of Linq to Entity Query

Most of the small or medium IT firms are using the Entity framework for the Data Access layer (DAL). If we write a complex linq to Entity queries performance will always be an issue. But with the Compiled Query Performance can be improved. This below definitions are from MSDN and more details can be found on the MSDN Link that is at the end of this post 


         When you have an application that executes structurally similar queries many times in the Entity Framework, you can frequently increase performance by compiling the query one time and executing it several times with different parameters. For example, an application might have to retrieve all the QuoteRevision for a particular quotelineStatus, the quotelinestatus is specified at runtime. LINQ to Entities supports using compiled queries for this purpose.


              The compiled query class provides compilation and caching of queries for reuse. Conceptually, this class contains aCompiledQuery'sCompilemethod with several ove…