How to unit test components?

[Victor-N-Suadicani]

I'd like to unit test my components, but I'm not sure exactly how to achieve that.

What I would like to do is to obtain a Context<Self> and then just call Component::create. Then I would have Self and I could call Component::view and start inspecting the HTML to check if it contains what I want. Then I could even start sending messages via Component::update and call Component::view again to check that it does what I wanted.

However, I see no way to construct a Context in yew. Is there some other way to achieve what I want?

I guess a problem as well is that if the component uses web_sys stuff, then I'm not at all sure how that would be provided to the code during testing.

What is the strategy for unit tests for components? Is it just not possible and I'll need to go for some form of end-to-end testing using browser testing like Cypress or something?