The document discusses NUnit, an open source unit testing framework for .NET. It describes what NUnit is, how to install and use it, key concepts like test fixtures and methods, and provides an example of writing unit tests for a calculator class using NUnit's attributes. The document also covers running tests via the NUnit GUI or console, and examining the output XML file for test results.

1. NUnit – A Unit Test Framework for .Net

8. The Input & Output of nUnit NUnit Dll, exe file XML file (Optional) Processing details on the GUI or Command prompt

10. Select the Solution explorer mode

11. Right click references and select Add reference

12. Select Browse

13. Goto the nunitin directory, choose nunit.framework.dll and press open.

14. Now press ok in the Add reference page

15. The dll has been added to your reference list.

16. In your code, add using nunit.framework.

17. Add testfixture to your program

24. Location of exe files

28. Select open in the NUNIT GUI

29. Select the dll which you want to test(In this case, we have moved the dll to the nunitin folder)

30. Runs Perfectly

31. Tests Fail

32. To save the output in an XML file

36. Runs Perfectly

37. Test Fails

39. Now lets Examine the Output file (test passed)

40. Test Failed

41. Failure message(1 message)

42. Test Failure(2 tests)