rsnext/test/unit/is-equal-node.unit.test.ts
ericbiewener c791da0977
correctly assess node equality when nonce attribute is present (#27573)
* add isEqualNode function

* add test

* trying to make integration test work

* revert

* Update test/unit/is-equal-node.unit.test.js

Co-authored-by: Steven <steven@ceriously.com>

* Revert "revert"

This reverts commit d67b9971068d18efcf839666a3a17619fd914fc3.

* Fix tests

* Use TS for unit test

* Revert waitfor

* Start tests with "should"

* Fix lint

* Use cloneNode()

Co-authored-by: Eric Biewener <eric.biewener0@walmart.com>
Co-authored-by: Steven <steven@ceriously.com>
2021-11-10 19:31:32 -06:00

48 lines
1.7 KiB
TypeScript

/**
* @jest-environment jsdom
*/
/* eslint-env jest */
import { isEqualNode } from 'next/dist/client/head-manager'
const createScriptElement = (attrs = {}) => {
const el = document.createElement('script')
for (const k in attrs) el.setAttribute(k, attrs[k])
return el
}
describe('isEqualNode', () => {
it('should equal itself', () => {
const el = createScriptElement()
expect(isEqualNode(el, el)).toBe(true)
})
it('should equal equivalent node that has no nonce', () => {
const el1 = createScriptElement()
const el2 = createScriptElement()
expect(isEqualNode(el1, el2)).toBe(true)
})
it('should equal equivalent node that has same nonce property, even if the original node has no html nonce attribute value', () => {
const el1 = createScriptElement({ nonce: 'abc123' })
// Simulate Chrome/FF browser behavior of stripping off nonce value when adding element to the document
el1.setAttribute('nonce', '')
el1.nonce = 'abc123'
const el2 = createScriptElement({ nonce: 'abc123' })
expect(isEqualNode(el1, el2)).toBe(true)
})
it('should not equal node with different nonce value', () => {
const el1 = createScriptElement({ nonce: 'abc123' })
// Simulate Chrome/FF browser behavior of stripping off nonce value when adding element to the document
el1.setAttribute('nonce', '')
el1.nonce = 'abc123'
const el2 = createScriptElement({ nonce: 'xyz' })
expect(isEqualNode(el1, el2)).toBe(false)
})
it('should not equal node with different html attribute value', () => {
const el1 = createScriptElement({ src: '1.js' })
const el2 = createScriptElement({ src: '2.js' })
expect(isEqualNode(el1, el2)).toBe(false)
})
})