nunit not working in windows 7 at all

Question

I am new to unit testing and this ism y first time trying NUnit.

My environment is windows 7 professional 64 bit, visual studio 2010 and i am working on a windows application in C#. I just wrote a single test and i am trying to run the test using NUnit GUI.

My NUnit version is 2.5.10, i also tried 4 other versions below this and i get the same error.

the error is

"System.BadImageFormatException: could not load file or assembly 'DataLogger, version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. An attempt was made to load a program with an incorrect format.

You may be attempting to load an assembly built with a later version of the CLR than the version under which NUnit is currently running(2.0.50727) or trying to load a 64-bit assembly into a 32-bit process.

For further information, use the Exception Details menu item."

What i did is i loaded the application exe in the debug folder of the project into the NUnit GUI. (i mentioned this because i have a doubt that this could be the wrong way). Any help on this would be useful for me.

Have you tried writing a very simple test, including none of your application code? Is DataLogger part of your application code? — Bernard Chen, Jun 17 '11 at 05:44
see this http://stackoverflow.com/questions/4105398/how-do-i-investigate-the-course-of-a-tests-assembly-refusing-to-load-in-nunit — Haris Hasan, Jun 17 '11 at 05:46
Do you have any unmanged code in your system? If so, check for 32/64 issules. — Ian Ringrose, Jun 17 '11 at 08:27

score 36 · Accepted Answer · answered Jun 17 '11 at 08:12

36

I faced this problem myself. You need to use the x86 version of the application which is usually located at C:\Program Files (x86)\NUnit 2.5.10\bin\net-2.0\nunit-x86.exe And that does not throw the exception.

answered Jun 17 '11 at 08:12

Ashish Narmen

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.... why I have to use 32bit version of Nunit when my machine is 64bit. complete pain in the neck. Worked like a charm tho, thx. – Sleeper Smith May 14 '13 at 06:22

score 2 · Answer 2 · answered Jun 17 '11 at 05:54

2

I read somewhere that if we use windows 7 64 bit and developing apps for x86 then a separate GUi called nunitx86.exe in the same folder must be used. I did that and it works.

answered Jun 17 '11 at 05:54

swordfish

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nunit not working in windows 7 at all

2 Answers2