[CMake] CTest + Catch Framework

[David Cole]

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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