@virtuous/conductor/Stack/spec.js

A JavaScript router

"use strict";

var _index = _interopRequireDefault(require("./index"));

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

describe('Stack', function () {
  beforeEach(function () {
    _index["default"].constructor();
  });
  describe('add()', function () {
    it('should correctly add an entry', function () {
      var route = {
        pathname: '/myroute'
      };

      _index["default"].add('123', route);

      expect(_index["default"].getAll().size).toBe(1);
      expect(_index["default"].get('123')).toEqual(route);
    });
    it('should not add when params are missing', function () {
      _index["default"].add();

      expect(_index["default"].getAll().size).toBe(0);
    });
  });
  describe('first()', function () {
    it('should correctly return the first entry', function () {
      _index["default"].add('123', {
        a: 1
      });

      _index["default"].add('456', {
        a: 2
      });

      expect(_index["default"].first()).toEqual(['123', {
        a: 1
      }]);
    });
    it('should return null when stack is empty', function () {
      expect(_index["default"].first()).toBeNull();
    });
  });
  describe('get()', function () {
    it('should correctly get an entry', function () {
      var route = {
        pathname: '/myroute'
      };

      _index["default"].add('123', route);

      expect(_index["default"].get('123')).toEqual(route);
    });
    it('should return null when entry is not found', function () {
      expect(_index["default"].get('invalid')).toBe(null);
    });
  });
  describe('getByIndex()', function () {
    it('should return null when no index is given', function () {
      expect(_index["default"].getByIndex()).toBeNull();
    });
  });
  describe('getAll()', function () {
    it('should correctly return the complete map', function () {
      _index["default"].add('123', {});

      var entries = _index["default"].getAll();

      expect(entries instanceof Map).toBeTruthy();
      expect(entries.size).toBe(1);
    });
  });
  describe('last()', function () {
    it('should correctly return the last entry', function () {
      _index["default"].add('123', {
        a: 1
      });

      _index["default"].add('456', {
        a: 2
      });

      expect(_index["default"].last()).toEqual(['456', {
        a: 2
      }]);
    });
    it('should return null when stack is empty', function () {
      expect(_index["default"].last()).toBeNull();
    });
  });
  describe('remove()', function () {
    it('should correctly remove an entry', function () {
      _index["default"].add('123', {});

      _index["default"].add('456', {});

      _index["default"].remove('123');

      expect(_index["default"].get('123')).toBeNull();
      expect(_index["default"].get('456')).toBeTruthy();
      expect(_index["default"].getAll().size).toBe(1);
    });
  });
  describe('remove()', function () {
    it('should correctly reset the stack to the first entry', function () {
      _index["default"].add('123', {});

      _index["default"].add('456', {});

      _index["default"].add('789', {});

      _index["default"].reset();

      expect(_index["default"].get('123')).toBeTruthy();
      expect(_index["default"].get('456')).toBeFalsy();
      expect(_index["default"].getAll().size).toBe(1);
    });
    it('should correctly reset to a given id and entry', function () {
      _index["default"].add('123', {});

      _index["default"].add('456', {});

      _index["default"].reset(['789', {
        a: 1
      }]);

      expect(_index["default"].get('123')).toBeFalsy();
      expect(_index["default"].get('789')).toEqual({
        a: 1
      });
      expect(_index["default"].getAll().size).toBe(1);
    });
  });
  describe('update()', function () {
    it('should correctly update an entry', function () {
      _index["default"].add('123', {
        a: 1
      });

      _index["default"].update('123', {
        a: 2
      });

      expect(_index["default"].get('123')).toEqual({
        a: 2
      });
    });
    it('should not update when id is missing', function () {
      _index["default"].add('123', {
        a: 1
      });

      _index["default"].update();

      expect(_index["default"].get('123')).toEqual({
        a: 1
      });
    });
    it('should not update when id is not inside stack', function () {
      _index["default"].add('123', {
        a: 1
      });

      _index["default"].update('456', {
        a: 2
      });

      expect(_index["default"].get('123')).toEqual({
        a: 1
      });
    });
  });
  describe('clear()', function () {
    it('should remove all entries', function () {
      _index["default"].add('123', {
        a: 1
      });

      _index["default"].clear();

      expect(_index["default"].getAll().size).toBe(0);
    });
  });
});