run-tests.sh

#!/bin/bash
#
# Script to run unit tests on code. Unit tests are created in Mocha:
#      https://mochajs.org/
#


##### INSTALLATION ######

# Set env variables for eslint and mocha
cd "$(git rev-parse --show-toplevel)"
ESLINT="node_modules/.bin/eslint"
MOCHA="node_modules/.bin/mocha"
pwd

# Ensure eslint is installed
if [[ ! -x "$ESLINT" ]]; then
  printf "\t\033[41mPlease install ESlint\033[0m (npm install eslint)\n"
  exit 1
fi

# Review staged files
STAGED_FILES=($(git diff --cached --name-only --diff-filter=ACM | grep ".jsx\{0,1\}$"))


##### MOCHA / JS UNIT TESTS #####

# Counters for failed tests and lints
testFailed=0
lintFailed=0

# Run Mocha tests
$MOCHA  --compilers js:babel-core/register test --recursive
if [[ $? != 0 ]] ; then
  testFailed=1
fi

if [[ $testFailed == 0 ]]; then
  printf "\n\033[42mAll test passed\033[0m\n"
  printf "\n\033[42mCOMMIT SUCCEEDED\033[0m\n"
  exit 0
else
  printf "\n\033[41mCOMMIT FAILED:\033[0m Fix tests and try again\n"
  exit 1
fi

# Run linting
echo "ESLint'ing ${#STAGED_FILES[@]} files"

if [[ "$STAGED_FILES" = "" ]]; then
  exit 0
fi

for file in ${STAGED_FILES}; do
  git show :$file | $ESLINT --stdin --stdin-filename "$file"
  if [[ $? != 0 ]] ; then
    lintFailed=1
  fi
done;

if [[ $lintFailed == 0 ]]; then
  printf "\n\033[42mJsLint Successfull\033[0m\n"
else
  printf "\n\033[41mCOMMIT FAILED:\033[0m Fix eslint errors and try again\n"
  exit 1
fi