/**
 * @author NHN Ent. FE Development Team <dl_javascript@nhn.com>
 * @fileoverview Test cases of "src/js/component/rotation.js"
 */
import fabric from 'fabric';
import $ from 'jquery';
import Graphics from '../src/js/graphics';
import Rotation from '../src/js/component/rotation';

describe('Rotation', () => {
  let graphics, rotationModule, mockImage, canvas;

  beforeAll(() => {
    graphics = new Graphics($('<canvas>')[0]);
    canvas = graphics.getCanvas();
    rotationModule = new Rotation(graphics);
  });

  beforeEach(() => {
    mockImage = new fabric.Image();
    graphics.setCanvasImage('mockImage', mockImage);
  });

  it('"getCurrentAngle()" should return current angle value', () => {
    mockImage.angle = 30;

    expect(rotationModule.getCurrentAngle()).toEqual(30);
  });

  it('"setAngle()" should set angle value', () => {
    rotationModule.setAngle(40);

    expect(rotationModule.getCurrentAngle()).toEqual(40);
  });

  it('"rotate()" should add angle value', () => {
    let current = rotationModule.getCurrentAngle();

    rotationModule.rotate(10);
    expect(rotationModule.getCurrentAngle()).toBe(current + 10);

    current = rotationModule.getCurrentAngle();
    rotationModule.rotate(20);
    expect(rotationModule.getCurrentAngle()).toBe(current + 20);
  });

  it('"rotate()" should add angle value modular 360(===2*PI)', (done) => {
    rotationModule
      .setAngle(10)
      .then(() => rotationModule.rotate(380))
      .then(() => {
        expect(rotationModule.getCurrentAngle()).toBe(30);
        done();
      });
  });

  // @todo Move this tc to main.spec.js
  it('"adjustCanvasDimension()" should set canvas dimension from image-rect', () => {
    spyOn(mockImage, 'getBoundingRect').and.returnValue({
      width: 100,
      height: 110,
    });

    rotationModule.adjustCanvasDimension();
    expect(canvas.getWidth()).toEqual(100);
    expect(canvas.getHeight()).toEqual(110);
  });
});