We use Mocha for 'describe' and 'it' blocks. Sometimes we use 'describe.only' locally, but we want to be sure not to push it! (also a good pre-commit hook)

pre-push: check for 'only' mistakes

#!/bin/sh

# README: remember to chmod +x this file, save the contents to `my-project/.git/hooks/pre-push`

echo "HOOK PRE-PUSH: Checking for describe.only in test files..."

count=$(grep describe.only src/**/*.test.js | wc -l)

if [ "$count" -eq 0 ]
then
  echo "No describe.only blocks found.\n"
  exit 0
fi

echo "Found $count describe.only blocks\n"
exit 1