jvanbruegge/cyclejs-test-helpers

A small collection of useful utilities

cyclejs-test-helpers's Issues

Testing onionify readonly component with addPrevState

It's not possible to use the addPrevState method with a cyclejs component which is only reading the state and which isn't returning onion sinks.

I think this method might be updated with something like this :

export function addPrevState(main : any, prevState : any) : any {
    return function(sources : any) : any {
        const initReducer = xs.of(() => prevState);
        const appSinks = main(sources);
        return {
            ...appSinks,
            onion: xs.merge(initReducer, appSinks.onion || xs.empty())
        };
    };
}

Or we might create another method to test readonly component ?

what do you think about this , I can make a PR, if you need ?