2017-10-10 13:56:36 +02:00
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import { expect } from 'chai';
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import List from './list';
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2017-10-29 19:56:24 +01:00
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describe('components/list', () => {
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2017-10-10 13:56:36 +02:00
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let instance;
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let choicesElement;
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beforeEach(() => {
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2017-10-11 10:39:31 +02:00
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choicesElement = document.createElement('div');
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2018-05-21 18:01:03 +02:00
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instance = new List({
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element: choicesElement,
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});
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2017-10-10 13:56:36 +02:00
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});
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2017-12-18 13:06:38 +01:00
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afterEach(() => {
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document.body.innerHTML = '';
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instance = null;
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});
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2017-12-10 19:00:57 +01:00
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describe('constructor', () => {
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it('assigns choices element to class', () => {
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expect(instance.element).to.eql(choicesElement);
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});
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2019-10-29 22:19:56 +01:00
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it('sets the height of the element', () => {
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expect(instance.height).to.eql(choicesElement.scrollTop);
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});
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2017-10-10 13:56:36 +02:00
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});
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2017-10-11 10:39:31 +02:00
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describe('clear', () => {
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2018-05-28 14:55:44 +02:00
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it("clears element's inner HTML", () => {
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2017-10-11 10:39:31 +02:00
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const innerHTML = 'test';
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instance.element.innerHTML = innerHTML;
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expect(instance.element.innerHTML).to.equal(innerHTML);
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instance.clear();
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expect(instance.element.innerHTML).to.equal('');
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});
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});
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describe('append', () => {
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it('appends passed node to element', () => {
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const elementToAppend = document.createElement('span');
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const childClass = 'test-element';
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elementToAppend.classList.add(childClass);
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expect(instance.element.querySelector(`.${childClass}`)).to.equal(null);
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instance.append(elementToAppend);
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2018-05-28 14:55:44 +02:00
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expect(instance.element.querySelector(`.${childClass}`)).to.equal(
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elementToAppend,
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);
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2017-10-11 10:39:31 +02:00
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});
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});
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describe('getChild', () => {
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let childElement;
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const childClass = 'test-element';
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beforeEach(() => {
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childElement = document.createElement('span');
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childElement.classList.add(childClass);
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instance.element.appendChild(childElement);
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});
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it('returns child element', () => {
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const expectedResponse = childElement;
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const actualResponse = instance.getChild(`.${childClass}`);
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expect(expectedResponse).to.eql(actualResponse);
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});
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});
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2019-10-29 22:19:56 +01:00
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describe('hasChildren', () => {
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describe('when list has children', () => {
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it('returns true', () => {
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const childElement = document.createElement('span');
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instance.element.appendChild(childElement);
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const response = instance.hasChildren();
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expect(response).to.equal(true);
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});
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});
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describe('when list does not have children', () => {
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it('returns false', () => {
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instance.element.innerHTML = '';
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const response = instance.hasChildren();
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expect(response).to.equal(false);
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});
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});
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});
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describe('scrollToTop', () => {
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it("sets the position's scroll position to 0", () => {
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instance.element.scrollTop = 10;
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instance.scrollToTop();
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expect(instance.element.scrollTop).to.equal(0);
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});
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});
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2017-10-10 13:56:36 +02:00
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});
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