[CMake] add_test does not work as documented

[David Cole]

On Tue, Sep 21, 2010 at 4:19 AM, Jesper Eskilson <jesper.eskilson at iar.se>wrote:

> Hi,
>
> I cannot get add_test to work as documented.
>
>  add_test(mytest MyExe)
>
> correctly runs MyExe. However, if I try to use any of the "generator
> expressions" (such as $<CONFIGURATION>), it fails:
>
>  add_test(mytest ${SOMEVARIABLE}/$<CONFIGURATION>/MyExe)
>
> fails to locate MyExe correctly, since it isn't expanding $<CONFIGURATION>
> correctly.
>
>  Looked in the following places:
>>
>> /home/jesperes/dev/tooticki/core/ide/../stage/$<CONFIGURATION>/common/bin/TestIDE
>>
>> /home/jesperes/dev/tooticki/core/ide/../stage/$<CONFIGURATION>/common/bin/TestIDE
>>
>> /home/jesperes/dev/tooticki/core/ide/../stage/$<CONFIGURATION>/common/bin/Release/TestIDE
>>
>> /home/jesperes/dev/tooticki/core/ide/../stage/$<CONFIGURATION>/common/bin/Release/TestIDE
>>
>> /home/jesperes/dev/tooticki/core/ide/../stage/$<CONFIGURATION>/common/bin/Debug/TestIDE
>>
>> /home/jesperes/dev/tooticki/core/ide/../stage/$<CONFIGURATION>/common/bin/Debug/TestIDE
>>
>> /home/jesperes/dev/tooticki/core/ide/../stage/$<CONFIGURATION>/common/bin/MinSizeRel/TestIDE
>>
>> /home/jesperes/dev/tooticki/core/ide/../stage/$<CONFIGURATION>/common/bin/MinSizeRel/TestIDE
>>
>> /home/jesperes/dev/tooticki/core/ide/../stage/$<CONFIGURATION>/common/bin/RelWithDebInfo/TestIDE
>>
>> /home/jesperes/dev/tooticki/core/ide/../stage/$<CONFIGURATION>/common/bin/RelWithDebInfo/TestIDE
>>
>> /home/jesperes/dev/tooticki/core/ide/../stage/$<CONFIGURATION>/common/bin/Deployment/TestIDE
>>
>> /home/jesperes/dev/tooticki/core/ide/../stage/$<CONFIGURATION>/common/bin/Deployment/TestIDE
>>
>> /home/jesperes/dev/tooticki/core/ide/../stage/$<CONFIGURATION>/common/bin/Development/TestIDE
>>
>> /home/jesperes/dev/tooticki/core/ide/../stage/$<CONFIGURATION>/common/bin/Development/TestIDE
>>
>
> Also, the form
>
>  add_test(NAME mytest COMMAND MyCommand)
>
> doesn't work at all. No tests are generated, and "make test" complains that
> there aren't any tests.
>
> What am I doing wrong?
>
> I'm using CMake 2.8.2.
>
> --
> /Jesper
>
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$<CONFIGURATION> only works with the "add_test(NAME mytest COMMAND
MyCommand)" form of the add_test command.

But, when you use that form, you have to run "ctest -C Release" or "ctest -C
Debug" to choose a configuration when you run the tests. Otherwise, tests
added with that form are skipped if ctest is called without a -C argument.

"make test" just runs "ctest" without -C, so you have to change the way you
drive tests to use the add_test(NAME / COMMAND) signature. Usually, this is
useful for folks focused on IDE builds like Visual Studio or Xcode. If you
choose RUN_TESTS from inside the IDE, it already passes a -C arg to ctest,
and so it should work from that context.


HTH,
David
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