36 lines
826 B
JavaScript
36 lines
826 B
JavaScript
import Image from './image';
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const imageHtml = '<img src="foo.jpg"></img>';
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describe('Image', () => {
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let image;
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beforeEach(() => {
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document.body.innerHTML = imageHtml;
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image = document.querySelector('img');
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});
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it('Should initialize', () => {
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const img = new Image(image);
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expect(img).toBeInstanceOf(Image);
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});
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it('Should store a reference to the image element', () => {
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const img = new Image(image);
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expect(img.image).toBe(image);
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});
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test('fadeIn should set the element opacity to 0', () => {
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const img = new Image(image);
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img.fadeIn();
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expect(img.image.style.opacity).toBe('0');
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});
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test('showImage should set the element opacity to 1', () => {
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const img = new Image(image);
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img.showImage();
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expect(img.image.style.opacity).toBe('1');
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});
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});
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