[lucasyvas]

Sorry but this is a garbage take. Typing negates the need for writing useless tests that just verify the correct value types are passed - it does not negate the need for writing functional tests.

Where did you come up with this?

[mharig]

You seem to not understand duck typing.

Functional tests will test the correct types, too.

Edit: If you need an object that swims and quacks, you don't need to care if it is a rubber duck or an animal.