E3-1751: Fix make test to use cellbuild's path

As make test creates a cellbuild, the tests should look for modules in the cell directory.

This removes the need for activating an environment as part of any custom test targets.

This would allow module devs to go from

# configure/module/RULES_MODULE

module_tests:
    source /some/env && pytest

# tests/test_something.py

with IOC("--cell-path", os.environ["TEMP_CELL_PATH"]):
  assert things

to

# configure/module/RULES_MODULE

module_tests:
    pytest

# tests/test_something.py

with IOC():
  assert things

requested review from @lucasmagalhaes, @douglasaraujo, @grzegorzkowalski, and @simonrose

assigned to @anderslindh1

Ok, after a depressingly long amount of time to get something testing here, this doesn't seem to work.

If you have a startup script with echo ${EPICS_DRIVER_PATH} in it (and a test that runs this script) you can see that this is not being caught correctly. I also tried adding EPICS_DRIVER_PATH to the export list, but that doesn't seem to work...

added 2 commits

• 09d544da - Fix make test to use cellbuild's path
• 4ef18a48 - Remove (now) superfluous passing of cell path

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marked this merge request as draft

added 1 commit

• df4c9eae - fixup! Fix make test to use cellbuild's path

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marked this merge request as ready

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resolved all threads

mentioned in commit 4560be22

merged