68 lines
1.2 KiB
Markdown
68 lines
1.2 KiB
Markdown
---
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title: Mocha blanket
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category: JavaScript libraries
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intro: |
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Use [blanket](https://npmjs.com/package/blanket) for easy coverage reporting for Mocha JavaScript tests.
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---
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### Quickstart guide
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Install blanket:
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{: .-setup}
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```bash
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npm i --save-dev blanket
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```
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In your test helpers, use Blanket before `require`ing:
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```js
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if (process.env.COVERAGE) {
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require('blanket')({
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pattern: require('path').resolve('./index.js')
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});
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}
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thing = require('../index');
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```
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Add to `package.json`:
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```json
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"scripts": {
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"coverage": "env COVERAGE=1 mocha -R html-cov > coverage.html && open coverage.html"
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}
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```
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Be sure to ignore it:
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```bash
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echo "coverage.html" >> .gitignore
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```
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Then run:
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```bash
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npm run coverage
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```
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### Travis + coveralls.io support
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Visit [coveralls.io] then activate your repo. Then install the appropriate packages:
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{: .-setup}
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```bash
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npm i --save-dev mocha-lcov-reporter coveralls
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```
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Add this to `.travis.yml`:
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```yml
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after_success:
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- ./node_modules/.bin/mocha -R mocha-lcov-reporter | ./node_modules/coveralls/bin/coveralls.js
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```
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Commit, push, wait for Travis to finish.
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[blanket]: https://www.npmjs.org/package/blanket
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[coveralls.io]: http://coveralls.io
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