Trouble running the unit test example

Hullo all,

I've been considering adding Unit Tests to my code but I don't seem to be having much luck. I've followed the example on this page write-simple-test-case-with-functions but every time I try it I get an error.

I've attempted to run the tests with:

results = runtests('solverTest')

and:

results = runtests

Both attempts give me:

Error using runtests (line 100)
No test cases found.

I've checked that the files are in my path, and the the current working directory is correct. I've also tried following the source code and got as far as TestSuite.m line 232 where things seem to start going wrong for me. I'm new to Matlab so it's entirely possible that I've missed something obvious.

Appreciating any help that people can give,

- Gabe

EDIT: I've attached the files that I've been testing with. I've also checked and I am in the correct directory as follows:

>> pwd

ans =

C:\Users\galdam\Documents\MATLAB

>> dir

.                       dependancyMapper.m  

..                      quadraticSolver.m 

Apps                    solverTest.m

[Vivek Selvam]

Hi Gabe

Can you attach the files? Did you try keeping both the files in the present working directory?

You can get the present working directory with the command pwd.

[Gabriel]

I've attached the files I've been using and given a print out for pwd and dir. Thank you for replying so quickly!

[per isakson]

Which release of Matlab do you use?

Answer 1

[Andy Campbell]

Hi Gabe,

I think you may have a different runtests function higher on the path. Can you confirm this?

>> which -all runtests

I imagine you might have the file exchange runtests function higher on the path than the MATLAB runtests function. If so, you can remove this from the path using rmpath.

A few other ways to run the test to confirm things are in working order:

>> run(solverTest)
>>
>> tests = matlab.unittest.TestSuite.fromFile('solverTest.m');
>> run(tests)

Hope that helps!

Andy

[Gabriel]

This was indeed the problem! Another member of the team had xunit in the shared directory. At least I know what to look for in future ;)

[Alex]

wow, this is what happened to me as well.

Answer 2

[Shashank Gupta]

Hi All,

I am running into the same problem. My code is exactly as mentioned above by Gabriel. Basically I am trying to run the same example. And i tried everything mentioned above. Files are in the same working directory. Also, when I ran,

>> which -all runtests
'runtests' not found.

Do I not have "runtests" in my version of Matlab? I am using R2007b. Any help would be appreciated. Thank you!

[per isakson]

runtests, Run set of tests Introduced in R2013b

Answer 3

[James Fortier]

OK, I know the thread is old, but I'm having exactly the same problem, but none of the answers above fit.

Results of which -all runtests:

>> which -all runtests

/Applications/MATLAB_R2017a.app/toolbox/risk/risk/@varbacktest/runtests.m % varbacktest method

So there is a runtests function, but it's not the correct one. Any idea why it won't find the proper one? I looked in the documentation tree to try to find which toolbox this would be in, and I can't figure it out. As you can see, I'm running 2017b.

I'm trying to run the Mathworks own script-based unit test example with the rightTri function.

Appreciate any help.

Jim

[Steven Lord]

Can you show us the full and exact error message (all the text displayed in red) that you receive when you try running the MathWorks provided script-based unit test example as well as the exact command you wrote to try to run that example? That may provide information that will prove useful in determining what's going on.

That version of runtests you showed should be fine. It's a method of a particular type of object, and won't be called on a test. But it is odd that the runtests function for running a unit test isn't also listed. Have you had problems with your MATLAB path being corrupted in the past? Maybe the directory containing that version of runtests was removed from the path accidentally?

[James Fortier]

So it turns out my path was corrupted somehow, and I don't know why. A "restoreDefaultPath" ended up fixing the problem.

After restoring the default path, I had this, and then I was able to run the sample.

>> which -all runtests
/Applications/MATLAB_R2017a.app/toolbox/matlab/testframework/core/runtests.m
/Applications/MATLAB_R2017a.app/toolbox/risk/risk/@varbacktest/runtests.m     % varbacktest method

For reference, the bad call and error message was:

>> result = runtests('rightTriTest')
Undefined function 'runtests' for input arguments of type 'char'.
 
>> which runtests
/Applications/MATLAB_R2017a.app/toolbox/risk/risk/@varbacktest/runtests.m  % varbacktest method

It found a different runtests, that did not expect a string argument, which resulted in an error.

[Steven Lord]

Glad to hear it's working for you now.