将单元测试附加到C＃项目的标准方法

Question

I've written couple of unit tests in seperate project. While developing, I loaded the dll into NUnit.exe each time to check the results. Given that I am done with writing unit tests, how to organize and attach unit tests to the solution.

I'd tried creating "tools" folder in the solution directory and then placed all NUnit related libraries and in postbuild event of the test project I hooked up the nunit like below and it works.

"$(SolutionDir)tools\nunit\nunit-console.exe" "$(TargetPath)"

But in one of my tests, I refer to a sqlite DB. If I hardcode its location it works fine but I intend to place it in the tests project under "App_Data" folder. So, I tried with below code to get relative path but it is not working. But when I copied the file to "tools" folder it is working fine, I'd guess execution context is from NUnit folder.

Path.Combine(Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location),"App_Data\\test.txt")

Answer 1

If you don't need specifically nunit, you could as well use built-in visual studio support for unit testing... It has been incorporated to the newest Express editions as well and you don't have to struggle with problems like this ;)

Either way, I believe you've misunderstood the basics of unit testing. We never test against an actual database, that's a very bad practice. You should do some research on the topic and see the theory behind mocking stuff like this.