Some unit tests don't make sense

Trawling thru the unit tests, I've noticed some failed tests that I really think should pass.
For example:
`not ok 223 empty buffer and empty array are not equal`
I, would honestly expect and empty buffer and empty array to NOT be equal. One holds arbitrary data and one holds bytes. So why then, are them not being equal a fail?
Also:
`not ok 303 Date and RegExp are not equal`
I cannot see any scenario where a Date and a RegExp would be any type of equal, them being 2 completely different types with completely different intended functionality. So then why is them not being equal a failed test?

I want to adopt this library, but I need to ensure I won't have any... Surprises.

Can someone explain these test results and maybe convince me to integrate this library?