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Add the optional variable OptionalCatchTestLauncher

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This variable is set to allow the use of the nice ParseAndAddCatchTests script
in the case where a launcher is needed to execute  the script.

This is introduced to allow to launch unit tests using mpi. In this case one can
write for instance
  set(OptionalCatchTestLauncher ${MPIEXEC} ${MPIEXEC_NUMPROC_FLAG} ${NUMPROC})
before calling the ParseAndAddCatchTests function.
This commit is contained in:
Stephane Del Pino
2018-10-18 01:19:36 +02:00
committed by Martin Hořeňovský
parent 8b3c09c137
commit 544c7d7cbf
2 changed files with 16 additions and 1 deletions
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10
docs/cmake-integration.md
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@@ -172,6 +172,16 @@ step will be re-ran when the test files change, letting new tests be
automatically discovered. Defaults to `OFF`.
Optionally, one can specify a launching command to run tests by setting the
variable `OptionalCatchTestLauncher` before calling `ParseAndAddCatchTests`. For
instance to run some tests using `MPI` and other sequentially, one can write
```cmake
set(OptionalCatchTestLauncher ${MPIEXEC} ${MPIEXEC_NUMPROC_FLAG} ${NUMPROC})
ParseAndAddCatchTests(mpi_foo)
unset(OptionalCatchTestLauncher)
ParseAndAddCatchTests(bar)
```
## CMake project options
Catch2's CMake project also provides some options for other projects