Purpose of this preprocessor? about cypress-webpack-preprocessor HOT 2 CLOSED

Correct me if I'm wrong, but it sounds like your expectation is that it would manage your app code. The purpose of this preprocessor (and any Cypress preprocessor) is to watch and compile your test code (any .js or .coffee files that live in your cypress directory).

Out of the box (without this preprocessor), you can use modern JavaScript syntax and features (notably ES modules), so you might not need this preprocessor at all. However, we don't support experimental features out of the box, like object spread and decorators, so if you use those features in your test code (or import app code that uses those features into your test code), you may need this preprocessor to configure it to support those features.

This preprocessor will re-run you tests, but only when you change test files. Cypress doesn't really know anything about your app code or how it relates to your test code, so there's no way for us to automatically re-run tests based on your app code changing. That said, it's on our radar for us to add a mechanism enabling such functionality. Here's an issue to keep an eye on for progress on that front: cypress-io/cypress#456

from cypress-webpack-preprocessor.

Thanks.

from cypress-webpack-preprocessor.