@enact/ui/useScroll/tests/useScroll-specs.js

A collection of simplified unstyled cross-platform UI components for Enact

"use strict";

require("@testing-library/jest-dom");
describe('useScroll', function () {
  describe('Rounding target scroll position', function () {
    beforeEach(function () {
      jest.resetModules(); // important! clears cached modules
    });
    test('should round target position upwards when target is bigger than current position', function () {
      jest.doMock('@enact/core/platform', function () {
        return {
          __esModule: true,
          platform: {
            chrome: 132
          }
        };
      });
      var _require = require('../useScroll'),
        roundTarget = _require.roundTarget;
      var currentPosition = {
        scrollPos: {
          left: 100,
          top: 100
        }
      };
      var _roundTarget = roundTarget(currentPosition, 120.5, 120.4),
        roundedTargetX = _roundTarget.roundedTargetX,
        roundedTargetY = _roundTarget.roundedTargetY;
      expect(roundedTargetX).toEqual(121);
      expect(roundedTargetY).toEqual(121);
    });
    test('should round target position downwards when target is bigger than current position', function () {
      jest.doMock('@enact/core/platform', function () {
        return {
          __esModule: true,
          platform: {
            chrome: 132
          }
        };
      });
      var _require2 = require('../useScroll'),
        roundTarget = _require2.roundTarget;
      var currentPosition = {
        scrollPos: {
          left: 100,
          top: 100
        }
      };
      var _roundTarget2 = roundTarget(currentPosition, 90.4, 80.8),
        roundedTargetX = _roundTarget2.roundedTargetX,
        roundedTargetY = _roundTarget2.roundedTargetY;
      expect(roundedTargetX).toEqual(90);
      expect(roundedTargetY).toEqual(80);
    });
    test('should not round target position when chrome <= 120', function () {
      jest.doMock('@enact/core/platform', function () {
        return {
          __esModule: true,
          platform: {
            chrome: 119
          }
        };
      });
      var _require3 = require('../useScroll'),
        roundTarget = _require3.roundTarget;
      var currentPosition = {
        scrollPos: {
          left: 100,
          top: 100
        }
      };
      var _roundTarget3 = roundTarget(currentPosition, 90.4, 80.8),
        roundedTargetX = _roundTarget3.roundedTargetX,
        roundedTargetY = _roundTarget3.roundedTargetY;
      expect(roundedTargetX).toEqual(90.4);
      expect(roundedTargetY).toEqual(80.8);
    });
  });
});