@enact/core/kind/tests/computed-specs.js

Enact is an open source JavaScript framework containing everything you need to create a fast, scalable mobile or web application.

"use strict";

var _computed = _interopRequireDefault(require("../computed"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { "default": e }; }
describe('computed', function () {
  var exampleCfg = {
    sum: function sum(_ref) {
      var x = _ref.x,
        y = _ref.y,
        z = _ref.z;
      return x + y + z;
    },
    product: function product(_ref2) {
      var x = _ref2.x,
        y = _ref2.y,
        z = _ref2.z;
      return x * y * z;
    }
  };
  var exampleProps = {
    x: 2,
    y: 3,
    z: 4
  };
  test('should add new props to updated object', function () {
    var props = {
      value: true
    };
    var cfg = {
      count: function count() {
        return 1;
      }
    };
    var updated = (0, _computed["default"])(cfg, props);
    var expected = 1;
    var actual = updated.count;
    expect(actual).toBe(expected);
  });
  test('should overwrite properties with computed values', function () {
    var props = {
      value: true,
      count: 2
    };
    var cfg = {
      count: function count() {
        return 1;
      }
    };
    var updated = (0, _computed["default"])(cfg, props);
    var expected = 1;
    var actual = updated.count;
    expect(actual).toBe(expected);
  });
  test('should not leak updated prop values into other computed props', function () {
    var props = {
      count: 1
    };
    var cfg = {
      value: function value(_ref3) {
        var count = _ref3.count;
        return count + 5;
      },
      count: function count(_ref4) {
        var _count = _ref4.count;
        return _count + 1;
      }
    };
    var updated = (0, _computed["default"])(cfg, props);
    var expected = 6;
    var actual = updated.value;
    expect(actual).toBe(expected);
  });
  test('should work with its documented example - sum', function () {
    var updated = (0, _computed["default"])(exampleCfg, exampleProps);
    var expected = 9;
    var actual = updated.sum;
    expect(actual).toBe(expected);
  });
  test('should work with its documented example - product', function () {
    var updated = (0, _computed["default"])(exampleCfg, exampleProps);
    var expected = 24;
    var actual = updated.product;
    expect(actual).toBe(expected);
  });
});