eff/dist/state.test.js

An extensible effect monad based on the freer monad

"use strict";

var _ava = _interopRequireDefault(require("ava"));

var _eff = require("./eff");

var _state = require("./state");

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

_ava.default.cb("Get", function (t) {
  var state = "Hello, World!";
  var application = (0, _state.get)();
  (0, _eff.run)([(0, _state.interpretState)(state)])(function (receivedState) {
    t.is(receivedState, state);
    t.end();
  })(application);
});

_ava.default.cb("Modify", function (t) {
  var state = "Hello, World!";

  var modification = function modification(x) {
    return x + " How are you?";
  };

  var application = (0, _state.modify)(modification).chain(_state.get);
  (0, _eff.run)([(0, _state.interpretState)(state)])(function (receivedState) {
    t.is(receivedState, modification(state));
    t.end();
  })(application);
});

_ava.default.cb("Put", function (t) {
  var state = "Hello, World!";
  var newState = "World, Hello!";
  var application = (0, _state.put)(newState).chain(_state.get);
  (0, _eff.run)([(0, _state.interpretState)(state)])(function (receivedState) {
    t.is(receivedState, newState);
    t.end();
  })(application);
});
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