unveil/lib/components/__tests__/Navigator.js

A React-based Reactive Presentation Framework

'use strict';

var _rxjs = require('rxjs');

jest.dontMock('../Navigator');

var createNavigator = require('../Navigator').default;
var possibleMoves = [{ next: [0], previous: [2] }, { next: false, previous: [1, 1] }];

var motions = ['left', 'right', 'up', 'down'];

describe('Navigator', function () {
  var navigator = undefined,
      stateSubject = undefined;

  beforeEach(function () {
    stateSubject = new _rxjs.Subject();
    var stateObservable = stateSubject;
    navigator = createNavigator({ stateObservable: stateObservable });
  });

  describe('Motion Names', function () {
    it('returns correct motion names', function () {
      var names = navigator.motionNames;
      expect(names.length).toEqual(4);
      motions.forEach(function (motion) {
        expect(names.indexOf(motion)).not.toEqual(-1);
      });
    });
  });

  describe('Possible motions', function () {
    var t = function t(name, possibleMotions, directions) {
      return it(name, function () {
        stateSubject.next(directions);
        possibleMotions.forEach(function (val, i) {
          expect(navigator.isPossibleMotion(motions[i])).toEqual(val);
        });
      });
    };

    t('computes possible motions before setting moves', [false, false, false, false], []);
    t('computes possible motions after setting moves', [true, true, true, false], possibleMoves);
  });

  describe('Go', function () {
    var mockSubscriber = undefined,
        subscription = undefined;

    beforeEach(function () {
      stateSubject.next(possibleMoves);
      mockSubscriber = jest.genMockFn();
      subscription = navigator.asObservable().subscribe(mockSubscriber);
    });

    afterEach(function () {
      if (subscription) subscription.unsubscribe();
    });

    var t = function t(name, next, expectation) {
      return it(name, function () {
        navigator.next(next);
        expectation();
      });
    };

    t('does not go to invalid state', ['not'], function () {
      return expect(mockSubscriber).not.toBeCalled();
    });
    t('does not move diagonally', 'diagonally', function () {
      return expect(mockSubscriber).not.toBeCalled();
    });
    t('does not move down', 'down', function () {
      return expect(mockSubscriber).not.toBeCalled();
    });
    t('goes to valid state', [1], function () {
      return expect(mockSubscriber).toBeCalledWith([1]);
    });
    t('goes to valid string state', [1], function () {
      return expect(mockSubscriber).toBeCalledWith([1]);
    });
    t('moves up', 'up', function () {
      return expect(mockSubscriber).toBeCalledWith([1, 1]);
    });
  });
});
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