message: Make test.sh work no matter what your cwd is.
  `$ ../../test.sh` and similar works now.
diff: @@ -20,6 +20,9 @@ set -o pipefail
  # Print each command as it executes
  set -o xtrace
  +# This script should work no matter where you call it from.
  +cd "$(dirname "$0")"
  +
  # Controller unit tests on native.
  pio test -e native
  # Make sure controller builds for target platform.
  