Add testing of correct handling in case of metadata of dandiset.yaml and an asset are incorrect (according to dandischema)

[yarikoptic]

ref: #1176 (comment)

[yarikoptic]

moreover, I think that code should be tuned up may be -- can't we get all individual errors from pydantic.ValidationError? ATM all invocations pass in just a single exception as a list:

❯ git grep -A1 pydantic_errors_to_validation_results
dandi/files/bases.py:                return _pydantic_errors_to_validation_results(
dandi/files/bases.py-                    [e], str(self.filepath), dandiset_path=self.dandiset_path
--
dandi/files/bases.py:                return _pydantic_errors_to_validation_results(
dandi/files/bases.py-                    [e], str(self.filepath), dandiset_path=self.dandiset_path
--
dandi/files/bases.py:                return _pydantic_errors_to_validation_results(
dandi/files/bases.py-                    [e], str(self.filepath), dandiset_path=self.dandiset_path
--
dandi/files/bases.py:def _pydantic_errors_to_validation_results(
dandi/files/bases.py-    errors: list[dict | Exception],

so it makes no sense to have a loop inside then . I think the idea was to pass a single exception and loop though contained in it errors. Please check how it can be done.

[TheChymera]

@yarikoptic PR seems to have addressed this, can we close the issue?

[yarikoptic]

hm, that PR #1176? it seems was closed without merging -- did I click a wrong button back then?

[TheChymera]

@yarikoptic I think you did :/