scripts/generate-coverage.sh

   1 #!/bin/bash
   2 # Generate code coverage data for posting to Coveralls.
   3 # This requires dist/*.js to be in place.
   4 # Output is coverage/lcov.info
   5
   6 set -o errexit
   7 set -x
   8
   9 # Generate per-file ES6 --> ES5 transpilations
  10 babel src --out-dir dist/src
  11 babel auto_tests/tests --out-dir dist/auto_tests/tests
  12
  13 # Instrument the source code with Istanbul's __coverage__ variable.
  14 rm -rf coverage/*  # Clear out everything to ensure a hermetic run.
  15 mkdir -p coverage
  16 istanbul instrument --output coverage/src dist/src
  17 cp -r dist/auto_tests coverage/
  18
  19 # Build a combined file for running the tests in-browser
  20 browserify coverage/auto_tests/tests/*.js -o coverage/tests.js
  21
  22 # Run http-server and save its PID for cleanup
  23 http-server > /dev/null &
  24 SERVER_PID=$!
  25 function finish() {
  26   kill -TERM $SERVER_PID
  27 }
  28 trap finish EXIT
  29
  30 # Give the server a chance to start up
  31 sleep 1
  32
  33 # Run the tests using mocha-phantomjs & mocha-phantomjs-istanbul
  34 # This produces coverage/coverage.json
  35 phantomjs \
  36   ./node_modules/mocha-phantomjs/lib/mocha-phantomjs.coffee \
  37   http://localhost:8080/auto_tests/coverage.html \
  38   spec '{"hooks": "mocha-phantomjs-istanbul", "coverageFile": "coverage/coverage.json"}'
  39
  40 if [ $CI ]; then
  41   # Convert the JSON coverage to LCOV for coveralls.
  42   istanbul report --include coverage/*.json lcovonly
  43
  44   # Monkey patch in the untransformed source paths.
  45   # perl -i -pe 's,dist/main,src/main,' coverage/lcov.info
  46   echo ''  # reset exit code -- failure to post coverage shouldn't be an error.
  47
  48 else
  49
  50   # Convert the JSON coverage to HTML for viewing
  51   istanbul report --include coverage/*.json html
  52   set +x
  53
  54   echo 'To browse coverage, run:'
  55   echo
  56   echo '  open coverage/index.html'
  57   echo
  58
  59 fi