import Updux, { actionCreator } from './updux';

type MyState = {
    sum: number
}

test( 'added mutation is present', () => {
    const updux = new Updux<MyState>({
        initial: { sum: 0 },
    });

    const add = actionCreator('add', (n : number) => ({n}) )

    // must add 'add' in the actions 9.9
    updux.addMutation(
        add, ({n},action) => ({sum}) => ({sum: sum + n})
    );
    updux.mutations;
    const store = updux.createStore();
    store.dispatch.add(3);

    expect(store.getState()).toEqual({ sum: 3 });
});