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| import * as tools from 'utils/tools';
describe('addClass', () => {
const divClass = 'test';
it('returns false if null or undefined is passed', () => {
const nullCheck = tools.addClass(null, divClass);
const undefinedCheck = tools.addClass(undefined, divClass);
expect(nullCheck).toBe(false);
expect(undefinedCheck).toBe(false);
});
it('adds a className to an elements classList', () => {
const div = document.createElement('div');
tools.addClass(div, divClass);
expect(div.classList.contains(divClass)).toBe(true);
});
});
describe('getChildren', () => {
it('gets all immediate child nodes of a parent as a simple array', () => {
const parent = document.createElement('div');
const child1 = document.createElement('div');
const child2 = document.createElement('div');
parent.appendChild(child1);
parent.appendChild(child2);
const children = tools.getChildren(parent);
expect(children instanceof Array).toBe(true);
expect(children.length).toBe(2);
});
});
describe('hasClass', () => {
it('confirms a class exists on a dom node', () => {
const div = document.createElement('div');
div.classList.add('test');
expect(tools.hasClass(div, 'test')).toBe(true);
});
it('returns false if el does not exist', () => expect(tools.hasClass(null, 'test')).toBe(false));
});
describe('removeClass', () => {
const divClass = 'test';
it('returns false if null or undefined is passed', () => {
const nullCheck = tools.removeClass(null, divClass);
const undefinedCheck = tools.removeClass(undefined, divClass);
expect(nullCheck).toBe(false);
expect(undefinedCheck).toBe(false);
});
it('adds a className to an elements classList', () => {
const div = document.createElement('div');
div.classList.add(divClass);
tools.removeClass(div, divClass);
expect(div.classList.contains(divClass)).toBe(false);
});
});
describe('convertElements', () => {
it('converts a nodelist into a simple array', () => {
const parent = document.createElement('div');
const child1 = document.createElement('div');
const child2 = document.createElement('div');
parent.appendChild(child1);
parent.appendChild(child2);
const nodes = parent.querySelectorAll('div');
const converted = tools.convertElements(nodes);
expect(converted instanceof Array).toBe(true);
expect(converted.length).toBe(2);
});
});
describe('getNodes', () => {
const parent = document.createElement('div');
const child1 = document.createElement('div');
const child2 = document.createElement('div');
const attributeKey = 'test-attribute';
const classKey = 'test';
child1.setAttribute('data-js', attributeKey);
child1.classList.add(classKey);
child2.setAttribute('data-js', attributeKey);
child2.classList.add(classKey);
parent.appendChild(child1);
parent.appendChild(child2);
it('gets a single node by attribute', () => {
const node = tools.getNodes(attributeKey, false, parent)[0];
expect(node).toBeDefined();
});
it('gets multiple nodes by attribute', () => {
const nodes = tools.getNodes(attributeKey, false, parent);
expect(nodes).toBeDefined();
expect(nodes.length).toBe(2);
});
it('gets multiple nodes by attribute and converts them to an array', () => {
const nodes = tools.getNodes(attributeKey, true, parent);
expect(nodes).toBeDefined();
expect(nodes.length).toBe(2);
expect(nodes instanceof Array).toBe(true);
});
it('gets multiple nodes by css selector string', () => {
const nodes = tools.getNodes(`.${classKey}`, false, parent, true);
expect(nodes).toBeDefined();
expect(nodes.length).toBe(2);
});
});
describe('closest', () => {
const parent = document.createElement('div');
const child = document.createElement('div');
const classKey = 'test';
parent.classList.add(classKey);
parent.appendChild(child);
it('gets a parent node by selector string', () => {
const node = tools.closest(child, `.${classKey}`);
expect(node).toBeDefined();
});
it('returns null if no match', () => {
const node = tools.closest(child, '.other-test');
expect(node).toBeNull();
});
});
describe('insertAfter', () => {
it('inserts an element after another one', () => {
const parent = document.createElement('div');
const child1 = document.createElement('div');
const child2 = document.createElement('div');
parent.appendChild(child1);
child2.classList.add('test');
tools.insertAfter(child2, child1);
const nodes = parent.querySelectorAll('div');
expect(nodes[1].classList.contains('test')).toBe(true);
});
});
describe('insertBefore', () => {
it('inserts an element before another one', () => {
const parent = document.createElement('div');
const child1 = document.createElement('div');
const child2 = document.createElement('div');
parent.appendChild(child1);
child2.classList.add('test');
tools.insertBefore(child2, child1);
const nodes = parent.querySelectorAll('div');
expect(nodes[0].classList.contains('test')).toBe(true);
});
}); |