[Bug]: structuredClone fails on toStrictEqual #14011
Description
Version
29.4.0
Steps to reproduce
- Clone my repository at https://github.com/JamieMagee/jest-structuredclone-strictequal/blob/master/index.spec.js
npm installnpm test
Expected behavior
I expect to see objects cloned with structuredClone to pass toStrictEqual
Actual behavior
The values do not pass toStrictEqual (but do pass toEqual).
jest › toStrictEqual › structured clone
expect(received).toStrictEqual(expected) // deep equality
Expected: {"value": "test"}
Received: serializes to the same string
6 | describe('toStrictEqual', () => {
7 | it('structured clone', () => {
> 8 | expect(structuredClone(value)).toStrictEqual(value);
| ^
9 | });
10 | it('JSON clone', () => {
11 | expect(JSON.parse(JSON.stringify(value))).toStrictEqual(value);
at Object.toStrictEqual (index.spec.js:8:44)
However JSON.parse(JSON.stringify()) does pass toStrictEqual
Additional context
The test output can be seen in this GitHub Actions run.
Environment
System:
OS: Linux 6.2 NixOS 23.05 (Stoat) 23.05 (Stoat)
CPU: (32) x64 AMD Ryzen 9 7950X 16-Core Processor
Binaries:
Node: 19.7.0 - /run/current-system/sw/bin/node
Yarn: 1.22.19 - /run/current-system/sw/bin/yarn
npm: 9.5.0 - /run/current-system/sw/bin/npm