Draft
Conversation
…e-registration - Add InjectException class: replaces expressions with the exception they can raise (ZeroDivisionError, KeyError, IndexError, ValueError, FileNotFoundError, StopIteration, AttributeError). Guarded against injecting inside try/except blocks that already handle the exception, and inside except blocks themselves. - Add --without-exception-injection flag to mutation play to skip all InjectException mutations cleanly. - Add ijk = 42 / a to foobar/ex.py to exercise the ZeroDivisionError mutation path in the check-foobar target. - Document InjectException in README.md with contracts table and example. - Fix pytest_addoption double-registration: catch ValueError when --mutation is already registered (conftest.py + -p mutation conflict), restoring make check-foobar functionality. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
When mutating a file like schema/__init__.py, the module name in sys.modules is "schema", not "schema.__init__". Without this fix every mutation appeared to survive because the patched module was registered under the wrong key and the test suite kept importing the original. Two changes: - Strip trailing __init__ component from the path before the sys.path search so the module is patched as "schema" not "schema.__init__". - Also accept a package directory (has __init__.py) as a valid match during the sys.path walk, not just a plain .py file. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
…eption-injection The process pool executor cannot pickle local lambdas. Replace the lambda in play_create_mutations with a top-level named function mutation_without_inject_exception so it survives cross-process serialisation. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
…oader The previous approach started from project-relative path components and searched sys.path for a matching file, picking the first hit. This broke src/ layouts (e.g. src/itsdangerous/) where the project root matched before the editable-install src/ entry, producing "src.pkg" instead of "pkg". New approach: resolve the mutation file to an absolute path, then test every sys.path entry to see if the file falls under it. The entry that produces the *shortest* (most specific) module name wins, which correctly handles both flat layouts and src/ layouts. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
...fix pytest_addoption double-registration