I put it in a file called `~/bin/test-diff` and mark it as executable.
@james Very interesting idea... 🤔 Even more powerful would be to also runs tests for any non-test files changed since master. Assuming that your test <-> non-test directory structure is predictable.
(too lazy to write the right bash to do that though 😁)
@jeromedalbert I believe something like guard’s mapping might help with that
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