updux/docs/tutorial-subduxes.test.js

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2022-08-30 15:00:00 +00:00
import { test, expect } from 'vitest';
import u from 'updeep';
import R from 'remeda';
import { Updux } from '../src/index.js';
const nextIdDux = new Updux({
initial: 1,
actions: {
incrementNextId: null,
},
selectors: {
getNextId: state => state
},
mutations: {
incrementNextId: () => state => state + 1,
}
});
const matches = conditions => target => Object.entries(conditions).every(
([key,value]) => typeof value === 'function' ? value(target[key]) : target[key] === value
);
const todoDux = new Updux({
initial: {
id: 0,
description: "",
done: false,
},
actions: {
todoDone: null,
},
mutations: {
todoDone: id => u.if( matches({id}), { done: true })
},
selectors: {
desc: R.prop('description'),
}
});
const todosDux = new Updux({
initial: [],
subduxes: {
'*': todoDux
},
actions: {
addTodoWithId: (description, id) => ({description, id} )
},
findSelectors: {
getTodoById: state => id => state.find(matches({id}))
},
mutations: {
addTodoWithId: todo => todos => [...todos, todo]
}
});
const mainDux = new Updux({
subduxes: {
nextId: nextIdDux,
todos: todosDux,
},
actions: {
addTodo: null
},
effects: {
addTodo: ({ getState, dispatch }) => next => action => {
const id = getState.getNextId();
dispatch.incrementNextId()
next(action);
dispatch.addTodoWithId( action.payload, id );
}
}
});
const store = mainDux.createStore();
test( "basic tests", () => {
const myDesc = 'do the thing';
store.dispatch.addTodo(myDesc);
expect( store.getState.getTodoById(1).desc() ).toEqual(myDesc);
});