112 lines
3.1 KiB
JavaScript
112 lines
3.1 KiB
JavaScript
import { expect } from '@open-wc/testing';
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import sinon from 'sinon';
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import { managePosition } from '../../src/utils/manage-position.js';
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describe('managePosition()', () => {
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let positionedBoundingRectCalls = 0;
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let relativeBoundingRectCalls = 0;
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let positionHandler;
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const windowMock = {
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innerHeight: 200,
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innerWidth: 200,
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};
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const positioned = {
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setAttribute: sinon.stub(),
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removeAttribute: sinon.stub(),
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style: {
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removeProperty: sinon.stub(),
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},
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getBoundingClientRect() {
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positionedBoundingRectCalls += 1;
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return {
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height: 50,
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width: 50,
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};
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},
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};
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const relative = {
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setAttribute: sinon.stub(),
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removeAttribute: sinon.stub(),
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style: {
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removeProperty: sinon.stub(),
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},
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getBoundingClientRect() {
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relativeBoundingRectCalls += 1;
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return {
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height: 50,
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width: 50,
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top: 50,
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right: 100,
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bottom: 100,
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left: 50,
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};
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},
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offsetTop: 50,
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offsetLeft: 50,
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};
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beforeEach(() => {
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relativeBoundingRectCalls = 0;
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positionedBoundingRectCalls = 0;
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positionHandler = managePosition(positioned, relative, {}, windowMock);
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});
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afterEach(() => {
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positionHandler.disconnect();
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});
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it('sets the right styles', () => {
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expect(relativeBoundingRectCalls).to.equal(1);
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expect(positionedBoundingRectCalls).to.equal(1);
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expect(positioned.style).to.eql({
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removeProperty: positioned.style.removeProperty,
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position: 'absolute',
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zIndex: '10',
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overflow: 'auto',
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boxSizing: 'border-box',
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top: '8px',
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left: '50px',
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maxHeight: '34px',
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width: '50px',
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});
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expect(relative.style).to.eql({
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boxSizing: 'border-box',
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removeProperty: relative.style.removeProperty,
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});
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expect(relativeBoundingRectCalls).to.equal(1);
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expect(positionedBoundingRectCalls).to.equal(1);
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});
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it('recalculates on resize, only once per animation frame', done => {
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expect(relativeBoundingRectCalls).to.equal(1);
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expect(positionedBoundingRectCalls).to.equal(1);
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window.dispatchEvent(new CustomEvent('resize'));
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expect(relativeBoundingRectCalls).to.equal(1);
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expect(positionedBoundingRectCalls).to.equal(1);
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requestAnimationFrame(() => {
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expect(relativeBoundingRectCalls).to.equal(2);
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expect(positionedBoundingRectCalls).to.equal(2);
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window.dispatchEvent(new CustomEvent('resize'));
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expect(relativeBoundingRectCalls).to.equal(2);
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expect(positionedBoundingRectCalls).to.equal(2);
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window.dispatchEvent(new CustomEvent('resize'));
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expect(relativeBoundingRectCalls).to.equal(2);
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expect(positionedBoundingRectCalls).to.equal(2);
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done();
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});
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});
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it('does not recalculate after disconnect', () => {
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expect(relativeBoundingRectCalls).to.equal(1);
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expect(positionedBoundingRectCalls).to.equal(1);
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positionHandler.disconnect();
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window.dispatchEvent(new CustomEvent('resize'));
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expect(relativeBoundingRectCalls).to.equal(1);
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expect(positionedBoundingRectCalls).to.equal(1);
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});
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});
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