Allow variadic tuples of length 0. Fixes #104

[intentionally-left-nil]

With this patch, the following code works:

from dataclasses import dataclass
from dataclass_wizard import fromdict
@dataclass
class Test:
    my_ints: tuple[int, ...]


fromdict(Test, {"my_ints": []})

I am not sure why the required count should ever not be zero, based on my understanding of the code? If you have ... it means zero or more, not one or more.

The new unit test I added failed before this patch, and succeeds afterwards. None of the existing tests fail, so maybe this is a safe fix? Otherwise could you please expand on the logic & we can figure out the appropriate solution.

Fixes #104

[rnag]

I don't actually remember what this line was actually doing 😅

But I'm glad you caught it, that this is where we need to make the change. Totally right!

[rnag]

LGTM @intentionally-left-nil ! I kicked off the CI builds, but will go ahead and merge in either case, as it seems like a minor change to me.

Update: Error when running TC's for Python 3.8, so I'll have to look into that when I have time. Will go ahead and merge now and work on patch release with the changes soon. Thanks again for opening this PR!

[rnag]

@intentionally-left-nil This should be fixed as of v0.22.3. Please pull in latest version of lib to test and let me know.

Also I credited your contribution in the changelog, hope you don't mind 🙂.

[intentionally-left-nil]

Cheers!