Can someone recommend the most effective method to obtain coverage statistics in cucumber js?

With my testing approach based on Behavior Driven Development (BDD), I utilize Gherkin syntax for test design and run tests using Cucumber JS.

To collaborate with business stakeholders and management, I leverage Cucumber Studio to share reports and stay in sync.

Recently, I needed test coverage reports for the project and conducted research to find the best library. However, I'm unsure about which one to use and how to implement it effectively with Cucumber JS.

Among the options I've come across are JSCover, Cucumber Reports, and Istanbul for test coverage reports, but I need guidance on their specific usage and the most suitable choice for integrating with Cucumber JS.

javascriptcucumberjsistanbultest-coveragejscoverage

Answer №1

After experimenting with different approaches, I have discovered a straightforward way to utilize Istanbul JS for code coverage analysis.

By following the instructions provided on the official website, I proceeded to install Istanbul's JavaScript library known as nyc using the command:

yarn add -D nyc

Subsequently, I made necessary adjustments to the scripts section within my package.json file, which now looks like this:

...
  "scripts": {
    "test": "cucumber-js ...",
    ...
    "coverage": "nyc yarn test"
  },
...

Upon executing the command yarn coverage, the tests are run in conjunction with nyc, generating a comprehensive coverage report that can be viewed here:

https://i.sstatic.net/Ym24W.jpg

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