[CMake] CTest + Catch Framework

Bradley Lowekamp blowekamp at mail.nih.gov
Tue Jan 27 09:49:21 EST 2015


Hello,

This looks a little like google test. For a project I just created a CMake macro which grepped through the test files for the test cases and adds them one by one. Certainly features could be added to better support text fixtures. 

Hope this gives you some inspiration:
https://github.com/SimpleITK/SimpleITK/blob/7aeb952d25c0142e66087edce89e708db2d59a1a/Testing/Unit/CMakeLists.txt#L270-L310

Brad



On Jan 27, 2015, at 8:18 AM, David Cole via CMake <cmake at cmake.org> wrote:

> It's only a chicken and egg problem if you constrain yourself artificially.
> 
> When you define a new unit test source file, there are two things you
> need to do:
> (1) add it to its executable
> (2) write an add_test line that invokes that specific unit test
> 
> You could possibly encapsulate those actions into an add_unit_test
> macro so that it only seems like you have one thing to do, but
> certainly, it's possible.
> 
> You must be doing #1 already, so you just have to make sure #2 always
> happens whenever #1 happens.
> 
> Both eggs.
> 
> 
> D
> 
> 
> 
> 
> On Mon, Jan 26, 2015 at 4:05 PM, Robert Dailey <rcdailey.lists at gmail.com> wrote:
>> I believe so, but then you run into the chicken and egg problem:
>> 
>> I need to fully build all unit tests in order to know all the test
>> cases, but I need to define the tests at the generation phase (before
>> build).
>> 
>> I'm just not sure how to handle this. The best i can think of is to
>> generate 1 test executable per CPP file that we write in our unit
>> tests (generally 1 CPP file per class that is unit tested). Any ideas?
>> 
>> On Mon, Jan 26, 2015 at 10:05 AM, David Cole <DLRdave at aol.com> wrote:
>>> Can you run a command that executes one test case at a time, or do you
>>> have to run all 50 when you execute the tests for a library?
>>> 
>>> ctest just runs whatever you give it with add_test -- if you want to
>>> filter a collection of unit tests to run only a single unit test, then
>>> the unit test framework you're using would have to support that. Does
>>> Catch allow you to run the tests individually?
>>> 
>>> 
>>> 
>>> On Mon, Jan 26, 2015 at 12:30 AM, Robert Dailey
>>> <rcdailey.lists at gmail.com> wrote:
>>>> Hi,
>>>> 
>>>> I'm using Catch as my unit test framework:
>>>> https://github.com/philsquared/Catch
>>>> 
>>>> Is it possible for CTest to report each TEST_CASE block as an
>>>> individual test? My understanding is that CTest will only treat each
>>>> executable as a test. However, my test structure is as follows:
>>>> 
>>>> 1 library
>>>> 1 test project
>>>> 
>>>> Each test project has 1 test CPP file per each class in the library.
>>>> This way I implement tests for classes in a corresponding CPP file.
>>>> 
>>>> Each CPP file contains multiple test cases (defined by TEST_CASE macro).
>>>> 
>>>> The resulting output of `ctest -T Test` shows only 1 test, even though
>>>> that may be around 50 test cases. I'd like CMake to show the pass/fail
>>>> status of each one. Is this possible?
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