null == undefined

[superkhau]

expect(null).to.eql(undefined) fails

[moretti]

If you look at the source code you can see that eql is using the strict equal operator (===), so this is an expected behavior.

[superkhau]

That makes no sense. I want loose equality so I'm using .eql instead of be/equal. According to the README:

be / equal: asserts === equality
eql: asserts loose equality that works with objects

Unless I'm reading the README wrong, eql asserts LOOSE equality. Try plain Javascript without expect. null == undefined // true

[EvanHahn]

#136 had the same question, and I agree with it.

I made a fork called expecting.js which should fix this problem, if you're interested. I realize it's a few years too late, but maybe it'll help!