atom/test/batch.js

shared, synchronous, independent state for javascript apps

"use strict";

var atom = require("../");
var test = require("tape");

var addAction = function (n) {
  return { type: "ADD", payload: n };
};

var multiplyAction = function (n) {
  return { type: "MULTIPLY", payload: n };
};

var addReducer = function (action, state) {
  switch (action.type) {
    case "ADD":
      return state + action.payload;
    case "MULTIPLY":
      return state * action.payload;
  }
  return state;
};

test("should be able to batch actions", function (t) {
  t.plan(1);

  var store = atom(addReducer, 0);

  store.subscribe(function () {
    t.equal(store.getState(), 6);
  });

  store.dispatch(addAction(1), multiplyAction(3), multiplyAction(2));
});