Has anyone managed to combine test coverage report from two separate jest test runs? I am newbie trying to use the default jest coverage reporters: [json lcov text clover] I have tried using nyc to combine coverage-final*.json files from tmp folder and output to a full-test-coverage/ folder. npx nyc report --report-dir=full-test-coverage/ --reporter=html -t tmp The full-test-coverage folder is created with index.html etc. Source: https://www.artikelschreiber.com/en/.