Adding node.js test coverage from CircleCI to Code Climate

• install istanbul & codeclimate-test-reporter in your dev dependencies: npm install --save-dev istanbul codeclimate-test-reporter
• add to circle.yml:

general:
  artifacts:
    - "coverage"

test:
  post:
    - CODECLIMATE_REPO_TOKEN=$CODECLIMATE_REPO_TOKEN ./node_modules/.bin/codeclimate-test-reporter < coverage/lcov.info

• In Code Climate, get the test reporter token from https://codeclimate.com/repos/YER_PROJECT_ID/coverage_setup and take it to the “Env Var” section of your Circle CI project settings page, like https://circleci.com/gh/USER_NAME/PROJECT_NAME/edit#env-vars – add a variable with a name of CODECLIMATE_REPO_TOKEN and value of the test reporter token from Code Climate.

• Update your test command in your package.json from

"test": "NODE_ENV=test ./node_modules/.bin/jasmine"

to

"test": "NODE_ENV=test ./node_modules/.bin/istanbul cover --include-all-sources ./node_modules/.bin/jasmine"

Now, when CircleCI runs your test suite, it’ll generate a coverage report using istanbul and then send that report to Code Climate.