Brent Westbrook 4b0fa5f270 Render a diagnostic for syntax errors introduced in formatter tests (#21021) ... ## Summary I spun this out from #21005 because I thought it might be helpful separately. It just renders a nice `Diagnostic` for syntax errors pointing to the source of the error. This seemed a bit more helpful to me than just the byte offset when working on #21005, and we had most of the code around after #20443 anyway. ## Test Plan This doesn't actually affect any passing tests, but here's an example of the additional output I got when I broke the spacing after the `in` token: ``` error[internal-error]: Expected 'in', found name --> /home/brent/astral/ruff/crates/ruff_python_formatter/resources/test/fixtures/black/cases/cantfit.py:50:79 | 48 | need_more_to_make_the_line_long_enough, 49 | ) 50 | del ([], name_1, name_2), [(), [], name_4, name_3], name_1[[name_2 for name_1 inname_0]] | ^^^^^^^^ 51 | del () | ``` I just appended this to the other existing output for now.		2025-10-21 13:47:26 -04:00
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snapshots	Avoid reusing nested, interpolated quotes before Python 3.12 (#20930)	2025-10-17 08:49:16 -04:00
fixtures.rs	Render a diagnostic for syntax errors introduced in formatter tests (#21021)	2025-10-21 13:47:26 -04:00
normalizer.rs	Update Black tests (#20794)	2025-10-14 10:14:59 -04:00