Add tests for errors during byte formatting as for strings

[ApostolFet]

Bug report

Bug description:

There are tests for string formatting errors - https://github.com/python/cpython/blob/main/Lib/test/test_str.py#L1581-L1591, but no tests for byte formatting errors - https://github.com/python/cpython/blob/main/Lib/test/test_bytes.py#L719.

I would like to send a PR to fix this.

CPython versions tested on:

CPython main branch

Operating systems tested on:

No response

Linked PRs

• gh-131015: Add test for bytes formatting errors #131881
• [3.12] gh-131015: Add test for bytes formatting errors (#131881) #132114
• [3.13] gh-131015: Add test for bytes formatting errors (#131881) #132115

[ApostolFet]

@sobolevn Please assign the issue to me

[sobolevn]

Done!

[picnixz]

Thank you for the fix (re-categorizing it again as a bug fix actually as the previous tests were also incorrect)