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Contents
import { on } from "../events"
describe("on", () => {
const callback = jest.fn()
beforeEach(() => {
document.body.innerHTML = `
<ul class="list">
<li class="first item"><span>One</span></li>
<li class="second item">Two</li>
</ul>
`
})
it("adds event listener to base node", () => {
const baseNode = document.querySelector(".list")
const spy = jest.spyOn(baseNode, "addEventListener")
on("click", ".list", ".item", callback)
expect(spy).toHaveBeenCalledWith("click", expect.any(Function))
spy.mockReset()
})
it("event triggered on matching child node calls callback", () => {
const childNode = document.querySelector(".first.item")
on("click", ".list", ".item", callback)
childNode.click()
expect(callback).toHaveBeenCalledWith(expect.any(MouseEvent))
})
it("event triggered on child of registered target still calls callback", () => {
const child = document.querySelector(".first.item span")
on("click", ".list", ".item", callback)
child.click()
expect(callback).toHaveBeenCalledWith(expect.any(MouseEvent))
})
afterEach(() => callback.mockReset())
})
Version data entries
89 entries across 89 versions & 1 rubygems