27 lines
962 B
JavaScript
27 lines
962 B
JavaScript
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import { Ball } from '../ball';
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import { clone } from './clone';
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describe('clone', () => {
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it('Возвращает корректное значение при неверных типах аргументов', () => {
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expect(clone(null, 20)).toBeNull();
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expect(clone(new Ball(0, 0, 10, 3), '20')).toBeNull();
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});
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it('Клонирует мяч и задает корректное значение скоростей по осям X и Y', () => {
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const ball = new Ball(100, 200, 10, 90);
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ball.status = 'moving';
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ball.horizontalSpeed = 3;
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ball.verticalSpeed = 4;
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const clonedBall = clone(ball, 90);
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expect(clonedBall).toBeInstanceOf(Ball);
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expect(clonedBall).not.toEqual(ball);
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expect(clonedBall.x).toBe(100);
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expect(clonedBall.y).toBe(200);
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expect(clonedBall.status).toBe('moving');
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expect(clonedBall.horizontalSpeed).toBeCloseTo(-4);
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expect(clonedBall.verticalSpeed).toBeCloseTo(3);
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});
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});
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