ruff/crates/red_knot_python_semantic/resources/mdtest/exception/basic.md
Alex d77480768d
[red-knot] Port type inference tests to new test framework (#13719)
## Summary

Porting infer tests to new markdown tests framework.

Link to the corresponding issue: #13696

---------

Co-authored-by: Carl Meyer <carl@astral.sh>
2024-10-15 11:23:46 -07:00

1.2 KiB

Exception Handling

Single Exception

import re
try:
    x
except NameError as e:
    reveal_type(e)  # revealed: NameError
except re.error as f:
    reveal_type(f)  # revealed: error

Unknown type in except handler does not cause spurious diagnostic

from nonexistent_module import foo # error: [unresolved-import]

try:
    x
except foo as e:
    reveal_type(foo)  # revealed: Unknown
    reveal_type(e)  # revealed: Unknown

Multiple Exceptions in a Tuple

EXCEPTIONS = (AttributeError, TypeError)

try:
    x
except (RuntimeError, OSError) as e:
    reveal_type(e)  # revealed: RuntimeError | OSError
except EXCEPTIONS as f:
    reveal_type(f)  # revealed: AttributeError | TypeError

Dynamic exception types

def foo(x: type[AttributeError], y: tuple[type[OSError], type[RuntimeError]], z: tuple[type[BaseException], ...]):
    try:
        w
    except x as e:
        # TODO: should be `AttributeError`
        reveal_type(e)  # revealed: @Todo
    except y as f:
        # TODO: should be `OSError | RuntimeError`
        reveal_type(f)  # revealed: @Todo
    except z as g:
        # TODO: should be `BaseException`
        reveal_type(g)  # revealed: @Todo