Comparison to other tools

How does this compare to (insert tool here)?

enzyme shallow

Enzyme shallow works great for react class components but doesn't support the full set of hooks necessary to build stateful functional components.

enzyme mount and react-testing-library

These tools allow testing components and hooks but they:

1. Require a dom emulator. This makes tests run very slowly compared to tests that use isolate-react.
2. Require testing all rendered components. This is sometimes desirable but often is not. isolate-react allows you to test a single component in isolation, or to test multiple components together -- it's up to you.

cypress, selenium, etc.

Cypress and similar tools are used for acceptance testing. isolate-react facilitates isolated testing of a single component (unit testing) or a small set of components. Acceptance testing is orthogonal to unit testing -- you can do either or both.