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  1. NUNIT Navaneeth Rajkumar Open Source Tools Team Project Central.Net

  2. Something about nUnit… • NUnit is a unit-testing framework for all .Net languages. • It has been written entirely in C#.

  3. Important nUnit Links • http://www.nunit.org • http://nunit.org/download.html • http://sourceforge.net/projects/nunit/

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

  5. The 2 operational modes • GUI mode • Console mode (Project Central. net)

  6. Things to do before testing • Download Nunit-2.2.0.msi from http://nunit.org/download.html and install nunit.

  7. Things to do before testing cont…. • Add nunit.frameworks.dll to your project references. This dll resides in nunit\bin folder. • The next few screen shots show how to add this dll file if your project has been opened as a classlibrary.

  8. Select the Solution explorer mode

  9. Right click references and select Add reference

  10. Select Browse

  11. Goto the nunit\bin directory, choose nunit.framework.dll and press open.

  12. Now press ok in the Add reference page

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

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

  15. Add testfixture to your program

  16. TestFixture Example [TestFixture] public class calcTest{ [Test] public void AdditionTests(){ calculator cal=new calculator(); cal.Addition(5,10); //CASE 1 Assert.AreEqual(15,cal.output()); cal.Addition(-5,10); // CASE 2 Assert.AreEqual(15,cal.output()); } [Test] public void DivisionTests(){ calculator cal=new calculator(); cal.Division(10,2); // CASE 1 Assert.AreEqual(5,cal.output()); cal.Division(10,0); //CASE 2 Assert.AreEqual(2,cal.output()); } }//for testfixture

  17. How to write your test code • Suppose you want to test the functions in a class, your testfixture(test stub) should look somewhat like this using NUnit.Framework; Namespace sample1{ public class sampleclass(){ public void func1(){} }//for sampleclass [TestFixture] public class sampleTest(){ [Test] public void test1(){ testcase1; testcase2; }//for test1() }//for sampleTest textfixture }//for namespace

  18. Calculator Example using System; using NUnit.Framework; namespace ClassLibrary1 { public class calculator { private int result; public void Addition(int num1,int num2){ result=num1+num2; } public int output(){ return result; } public void Division(int num1,int num2){ if(num2==0){ throw new DivideByZeroException(); } result = num1/num2; } }

  19. Calculator Example cont… [TestFixture] public class calcTest { [Test] public void AdditionTests(){ calculator cal=new calculator(); cal.Addition(5,10);Console.Write("TESTING 5+10\n"); Assert.AreEqual(15,cal.output()); cal.Addition(-5,10);Console.Write("TESTING -5+10\n"); Assert.AreEqual(5,cal.output()); } [Test] public void DivisionTests(){ calculator cal=new calculator(); cal.Division(10,2); Console.Write("TESTING 10div2\n"); Assert.AreEqual(5,cal.output()); cal.Division(10,0); Console.Write("TESTING 10div0\n"); Assert.AreEqual(0,cal.output()); } }//for testfixture }//for namespace

  20. Build the Project • After the testfixture is complete, build the project. This will create a dll file which will reside in projectname\bin\debug folder.

  21. LOCATION of dll • In this example I am copying the dll file from projectname\bin\debug folder to nunit\bin folder for my convenience. • But this is not a requirement when we are testing and the dll can be run from projectname\bin\debug folder.

  22. Location of exe files

  23. Starting the GUI from console The GUI can be started from the console by executing nunit-gui.exe [inputfilename][options] Ex: nunit-gui.exe nunit.tests.dll –run This option will load the dll file and run the test. * Options with their values are separated by an equal, colon or a space.

  24. Starting the GUI from console • nunit-gui.exe [inputfilename][options] Options: /help short format: /? /config=STR project config to load /noload suppress loading of last proj /run Automatically run after load /fixture=STR Fixture to test

  25. GUI MODE • The steps to be followed are • Load the Dll file. • Select Run. • View the errors if any on the GUI screen. • Save the output XML if necessary.

  26. Select open in the NUNIT GUI

  27. Select the dll which you want to test(In this case, we have moved the dll to the nunit\bin folder)

  28. Runs Perfectly

  29. Tests Fail

  30. To save the output in an XML file

  31. Writing in the output file • In the GUI mode, the user must specify that he/she wants to save the output. No xml output file is automatically created on the users behalf. • But in Console mode, a XML file is created even if not specified by the user.

  32. Console mode • The command to execute the exe in console mode is nunit-console.exe [filename] [option] Example: nunit-console.exe classlibrary1.dll -XML=ourfile.xml

  33. The different options are Nunit-console [inputfiles][options] Options /Fixture=STR Fixture to test /config=STR project configuration to load /XML=STR Name of XML output file /transform=STR name of transform file /xmlConsole display XML to the console /output=STR File to receive test output (short :/out=STR) /err=STR File to receive test error output /labels Label each test in stdout /include = STR list of categories to include /exclude = STR list of categories to exclude /noshadow disable shadow option /thread runs thread on a separate thread /wait wait for input before closing console window /nologo Do not display the logo /help Display help (short format: /?)

  34. Runs Perfectly

  35. Test Fails

  36. Output file • As mentioned earlier, in console mode the xml file is automatically created as testresult.xml in the nunit\bin folder. • The user can change the name of the output file by saying -XML = newfilename.xml as shown in the previous slide.

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

  38. Test Failed

  39. Failure message(1 message)

  40. Test Failure(2 tests)

  41. Proposed Architecture • The architecture which has been proposed by the architect is • The user shall run his tests in the console mode of the nUnit tool after the dll has been created by the nAnt tool. • The output XML file shall be sent to the User Interface to accommodate information about the user, date, time and other related information.

  42. NUNIT Thank you