avcoveralls
v1.0.0
Published
takes json-cov output into stdin and POSTs to coveralls.io
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#node-coveralls
Coveralls.io support for node.js. Get the great coverage reporting of coveralls.io and add a cool coverage button ( like the one above ) to your README.
Supported CI services: travis-ci, codeship, circle-ci, jenkins
##Installation:
Add the latest version of coveralls
to your package.json:
npm install coveralls --save
If you're using mocha, add mocha-lcov-reporter
to your package.json:
npm install mocha-lcov-reporter --save
##Usage:
This script ( bin/coveralls.js
) can take standard input from any tool that emits the lcov data format (including mocha's LCov reporter) and send it to coveralls.io to report your code coverage there.
Once your app is instrumented for coverage, and building, you need to pipe the lcov output to ./node_modules/coveralls/bin/coveralls.js
.
This library currently supports travis-ci with no extra effort beyond piping the lcov output to coveralls. However, if you're using a different build system, there are a few environment variables that are necessary:
- COVERALLS_SERVICE_NAME (the name of your build system)
- COVERALLS_REPO_TOKEN (the secret repo token from coveralls.io)
There are optional environment variables for other build systems as well:
- COVERALLS_SERVICE_JOB_ID (an id that uniquely identifies the build job)
- COVERALLS_RUN_AT (a date string for the time that the job ran. RFC 3339 dates work. This defaults to your build system's date/time if you don't set it.)
Mocha + Blanket.js
- Install blanket.js
- Configure blanket according to docs.
- Run your tests with a command like this:
NODE_ENV=test YOURPACKAGE_COVERAGE=1 ./node_modules/.bin/mocha \
--require blanket \
--reporter mocha-lcov-reporter | ./node_modules/coveralls/bin/coveralls.js
Mocha + JSCoverage
Instrumenting your app for coverage is probably harder than it needs to be (read here), but that's also a necessary step.
In mocha, if you've got your code instrumented for coverage, the command for a travis build would look something like this:
YOURPACKAGE_COVERAGE=1 ./node_modules/.bin/mocha test -R mocha-lcov-reporter | ./node_modules/coveralls/bin/coveralls.js
Check out an example Makefile from one of my projects for an example, especially the test-coveralls build target. Note: Travis runs npm test
, so whatever target you create in your Makefile must be the target that npm test
runs (This is set in package.json's 'scripts' property).
Istanbul
With Mocha:
istanbul cover ./node_modules/mocha/bin/_mocha --report lcovonly -- -R spec && cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js && rm -rf ./coverage
With Jasmine:
istanbul cover jasmine-node --captureExceptions spec/ && cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js && rm -rf ./coverage
Nodeunit + JSCoverage
Depend on nodeunit, jscoverage and coveralls:
npm install nodeunit jscoverage coveralls --save-dev
Add a coveralls script to "scripts" in your package.json
:
"scripts": {
"test": "nodeunit test",
"coveralls": "jscoverage lib && YOURPACKAGE_COVERAGE=1 nodeunit --reporter=lcov test | coveralls"
}
Ensure your app requires instrumented code when process.env.YOURPACKAGE_COVERAGE
variable is defined.
Run your tests with a command like this:
npm run coveralls
For detailed instructions on requiring instrumented code, running on Travis and submitting to coveralls see this guide.
Poncho
Client-side JS code coverage using PhantomJS, Mocha and Blanket:
- Configure Mocha for browser
- Mark target script(s) with
data-cover
html-attribute - Run your tests with a command like this:
./node_modules/.bin/poncho -R lcov test/test.html | ./node_modules/coveralls/bin/coveralls.js
Lab
lab -r lcov | ./node_modules/.bin/coveralls
Running locally
If you're running locally, you must have a .coveralls.yml
file, as documented in their documentation, with your repo_token
in it; or, you must provide a COVERALLS_REPO_TOKEN
environment-variable on the command-line.
If you want to send commit data to coveralls, you can set the COVERALLS_GIT_COMMIT
environment-variable to the commit hash you wish to reference. If you don't want to use a hash, you can set it to HEAD
to supply coveralls with the latest commit data. This requires git to be installed and executable on the current PATH.
Contributing
I generally don't accept pull requests that are untested, or break the build, because I'd like to keep the quality high (this is a coverage tool afterall!).
I also don't care for "soft-versioning" or "optimistic versioning" (dependencies that have ^, x, > in them, or anything other than numbers and dots). There have been too many problems with bad semantic versioning in dependencies, and I'd rather have a solid library than a bleeding edge one.