Clean up old test files when test run

[CraigClark]

OP timer

https://openplus.monday.com/boards/4092908516/pulses/6466792260

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When the automated tests are run they are writing files to the server. Each time the tests run, more files get created.

We need a clean up process to make sure unnecessary files are not kept around.

[lkmorlan]

I have created the script on the dv server ~/bin/clean-test-files.bash. This removes the test files.

[NicoledeGreef]

• add a wiki note with a reference to the script

[CraigClark]

passed on dv14