Coverage

Japa does not need any special treatment to collect the code coverage metrics. You can rely on the existing tools like nyc and c8 for the same.

Using c8

Install the c8 package from the npm registry and update the test script to use c8 when running tests.

npm i -D c8

{
  "scripts": {
    "test": "c8 node bin/test.js"
  }
}

Using nyc

Install the nyc package from the npm registry and update the test script to use nyc when running tests.

{
  "scripts": {
    "test": "nyc node bin/test.js"
  }
}