Project fails to reconfigure with '-DHydrogen_ENABLE_TESTING=ON'

[yurivict]

I first build with -DHydrogen_ENABLE_TESTING=OFF - it succeeds. Then I reconfigure it with ```-DHydrogen_ENABLE_TESTING=ON in order to build and run tests. This fails:

===>  Testing for hydrogen-linear-algebra-1.5.1.29
fatal: ambiguous argument 'hydrogen': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'
-- Using __restrict__ keyword.
-- Found LAPACK: /usr/local/lib/libopenblas.so;-lpthread;-lm;-ldl
-- Using BLAS with trailing underscore.
-- Using LAPACK with trailing underscore.
-- Configuring done
-- Generating done
CMake Warning:
  Manually-specified variables were not used by the project:

    BUILD_TESTING

Most cmake-based projects are able to reconfigure with tests and run tests after build then.

It also isn't clear what make target runs tests. The README doesn't say anything about this.

[benson31]

I'm not able to reproduce this.

$ ninja
[167/167] Creating library symlink libHydrogen_CXX.so
$ cmake -DHydrogen_ENABLE_TESTING=ON ..
-- Found Aluminum@1.0.0: /path/to/aluminum/lib64/cmake/aluminum
-- Aluminum detected with NCCL2 backend support.
-- Aluminum detected with HostTransfer backend support.
-- Using __restrict__ keyword.
-- Found LAPACK: /usr/lib64/liblapack.so;/usr/lib64/libblas.so
-- Using BLAS with trailing underscore.
-- Using LAPACK with trailing underscore.
-- Configuring done
-- Generating done
-- Build files have been written to: /path/to/hydrogen-clean/build
$  ninja
[44/44] Linking CXX executable tests/Gemm_Suite

The tests are not well-maintained vis-a-vis the CMake integration. In particular, they might hang and/or not run at all. But the target is test (the default for CTest) if you want to try.

[yurivict]

Tests build fine now - some scripting errors were to blame.

Thank you for your help.