If you are on a version older than 7, we recommend installing the Puppeteer type definitions from the DefinitelyTyped repository: We have recently completed a migration to move the Puppeteer source code from JavaScript to TypeScript and as of version 7.0.1 we ship our own built-in type definitions. Ndb jest or ndb mocha (or npx ndb jest / npx ndb mocha)ĭebug your test inside chromium like a boss! Npm install -g ndb (or even better, use npx!)Īdd a debugger to your Puppeteer (node) codeĪdd ndb (or npx ndb) before your test command.
This example filters out all Network domain messagesĮnv DEBUG="puppeteer:*" env DEBUG_COLORS=true node script.js 2>&1 | grep -v '"Network'ĭebug your Puppeteer (node) code easily, using ndb Will be logged via the debug module under the puppeteer namespace.
Now your debugger will be hit and you can debug in the test browserĮnable verbose logging - internal DevTools protocol traffic In the newly opened test browser, type F8 to resume test execution
In Chrome open chrome://inspect/#devices and click inspect Run node -inspect-brk, eg node -inspect-brk node_modules/.bin/jest tests
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