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Jamon
@jamon.dev

Settle an argument: what is an integration test, and is that the same as an end-to-end test? Secondly, is testing a React component a "unit test"?

Tyler Williams
@coolsoftware.dev

To me, unit tests only require one system under test. So a react component test can be a unit test if that’s a basic building block in your software. But if you’re testing something that operates at the framework level, that could even be e2e.

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Tyler Williams
@coolsoftware.dev

Integration tests are just how two or more parts of my system get tested. When I write a test against a MobX-State-Tree store and then checks its impact on a React component, that’s an integration test to me.

Tyler Williams
@coolsoftware.dev

I think end to end tests generally need to be at the level of final consumption. For a user facing app, it’s black box testing for the whole system. But for a dev tool, it might be a script that initializes and verifies itself.