C# Mock testing interview questions and answers: – What is Mock testing?


Let’s say you want to UNIT test a data access layer class. But before any call is made to the data access class it calls an email class. This email component is not functional because we have still not received email server configuration details. Below is a simple code with comments depicts this situation.

So now how do we UNIT test data access layer because the email class will never allow us to execute the data access layer code. This is achieved by mocking ( by passing ) the email code.

public class Email
public bool SendEmail()
// not configured throws error

public class ClsCustomerDAL

public bool SaveRecord(string strCustomerName)
Email obj = new Email();
obj.SendEmail(); // This line throws a error

// Data acess code goes at this place but this place is never reached because // the error is throw in the previous line
return true;

Also read How can we implement Mocking  from http://dotnetinter.livejournal.com/71690.html

Also read Can you talk about some more real time scenarios where we can use Mock testing  from http://questpond.blog.com/2013/08/30/can-you-talk-about-some-more-real-time-scenarios-where-we-can-use-mock-testing/

You can also see c# interview questions and answers from www.questpond.com


About c# and .NET Interview questions

This blog is for developers who want to crack .NET and C# interviews. It has all tips and tricks needed to crack .NET interviews , C# interview , SQL Server interview , Java interview , WCF Interview , Silverlight interview , WPF interview , LINQ interview , Entity framework Interview. Do not forget to watch our Learn step by step video series. Learn MVC in 16 hours:- https://www.youtube.com/watch?v=Lp7nSImO5vk Learn AngularJS Step by Step:- https://www.youtube.com/watch?v=0kmdjqgO9IY Learn Design Pattern in 8 hours:- https://www.youtube.com/watch?v=YDobmucohqk Learn C# and .NET in 60 days:- https://www.youtube.com/watch?v=yh2SrzCkNQA Learn MSBI in 32 hours:- https://www.youtube.com/watch?v=mGPJx3ocFgg Learn SharePoint Step by Step in 8 hours:- https://youtu.be/C2fW76SwJNU
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