describe('zoomRatio (option)', () => {
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it('should be 0.1 by default', () => {
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const image = window.createImage();
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const viewer = new Viewer(image);
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expect(viewer.options.zoomRatio).to.equal(0.1);
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});
|
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it('should match the given zoom ratio', (done) => {
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const image = window.createImage();
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const zoomRatio = 0.2;
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const viewer = new Viewer(image, {
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zoomRatio,
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viewed() {
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const { imageData } = viewer;
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const { width } = imageData;
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viewer.viewer.dispatchEvent(window.createEvent('wheel', {
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deltaY: -1,
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}));
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expect(imageData.ratio).to.equal((width * (1 + zoomRatio)) / imageData.naturalWidth);
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viewer.hide(true);
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done();
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},
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});
|
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expect(viewer.options.zoomRatio).to.equal(zoomRatio);
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viewer.show();
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});
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});
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