cross-gesture/test/utils.test.ts

Gesture lib for the modern browsers

import { rotateDeg } from '../src/utils';

describe('Rotate', () => {
  const deg = rotateDeg(
    [
      {
        x: 0,
        y: 0,
      },
      {
        x: 4,
        y: 3,
      },
    ],
    [
      {
        x: 0,
        y: 0,
      },
      {
        x: 10,
        y: 0,
      },
    ],
  );

  it('Rotate 36.xxx', () => {
    return expect(Math.floor(deg)).toEqual(36);
  });

  const deg2 = rotateDeg(
    [
      {
        x: 0,
        y: 0,
      },
      {
        x: 10,
        y: 10,
      },
    ],
    [
      {
        x: 0,
        y: 0,
      },
      {
        x: 10,
        y: 0,
      },
    ],
  );

  it('Rotate 45', () => {
    return expect(Math.floor(deg2)).toEqual(45);
  });
});