[Bug]: toMatchObject incorectly handles nulls in lists of sets #14599
Description
Version
29.7.0
Steps to reproduce
For this match
expect([null]).toMatchObject([new Set()]);
Expected behavior
It should throw an exception
Actual behavior
But it doesn't throw an exception. What's interesting is that
expect(null).toMatchObject(new Set());
behaves as expected.
Additional context
No response
Environment
System:
OS: Linux 6.1 Debian GNU/Linux 12 (bookworm) 12 (bookworm)
CPU: (8) x64 Intel(R) Core(TM) i5-8365U CPU @ 1.60GHz
Binaries:
Node: 20.6.1 - /usr/local/bin/node
Yarn: 1.22.19 - /usr/local/bin/yarn
npm: 9.8.1 - /usr/local/bin/npm
pnpm: 8.7.5 - /usr/local/share/npm-global/bin/pnpm
npmPackages:
jest: ^29.7.0 => 29.7.0