Is It possible to unit test, constructor in c#, if yes how if not why Plz response .

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Dear All

Is It possible to unit test, constructor in c#, if yes how if not why Plz response .

Thanks

Posted 26-Jun-13 3:23am

A. K. Das

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bbirajdar · Accepted Answer · 2013-06-26T03:29:00

Solution 1

Yes.. Its possible Unit testing and the "constructors do nothing" rule[^]

Posted 26-Jun-13 3:29am

bbirajdar

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A. K. Das 26-Jun-13 9:38am

Thanks for Quick Response,,,

In case of Private Constructor is it Possible.......

bbirajdar 26-Jun-13 9:50am

Nice question... Basically unit testing is about providing the input (to a class or method or anything) and verifying if it returns the expected result. Since the constructor in your question is 'private' , it cannot be called from outside the class. So no need to test it as per the principles of unit testing. Still if you want to unit test it, then call it inside a public method in the class and unit test this public method

Edit: private constructors are used only in static classes

A. K. Das 26-Jun-13 9:53am

Thanks a lot , this is nice post clear my doubt...

Thank you very much..

Ron Beyer · Accepted Answer · 2013-06-26T03:30:00

Solution 2

Yes, you do this by instantiating the object and then asserting the fields of the object are initialized properly. You can also assert that no exception was thrown during the constructor. You can check private fields through reflection if you need to.

In your case it depends on what you want to check in the unit test...

Posted 26-Jun-13 3:30am

Ron Beyer

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A. K. Das 26-Jun-13 9:34am

Thanks for Response

In case of private Constructor is it possible?

Thanks