Tests failed to run, missing exampls how to run them

[Hellseher]

Hi!

Thank you for your work on this project. I tried to pack it for Guix upstream into Astronomical package set but I've got an issue to pass tests.

• Commit :: v3.5.1 Reproduce with Guix

  
  ~$ guix describe
  Generation 340  Sep 19 2022 16:52:15    (current)
  guix 72fe3c0
  repository URL: https://git.savannah.gnu.org/git/guix.git
  branch: master
  commit: 72fe3c0a35f04a6616c17228953a20861ce9b690

~$ guix clone https://git.sr.ht/~hellseher/ffab ~$ cd ffab ~$ git checkout wip-astronomy ~$ guix build -L . splash

Reproduce with Make file targets
``` shell
~$ make test
# or
~$ cd build; make test

Error:

make: *** No rule to make target 'test_interpolate3D.o', needed by 'test1'.  Stop.

Regards.

[Hellseher]

Hi,

Is any example in documentation I may use to run unit tests? I've played with different Make targets but have no tests working yet.

Thanks, Oleg