Copy lockfile (uv.lock/poetry.lock/…) alongside pyproject.toml into the mutants tree

HISTORY.rst

@@ -14,6 +14,8 @@ Unreleased
 
 * Add `use_git_change_detection` config (default true) to opt out of git-based detection
 
+* Add `uv.lock`, `poetry.lock`, `Pipfile.lock`, and `pdm.lock` to the list of files copied by default
+
 * Invalidate cached results automatically when result-affecting config fields change
 
 

src/mutmut/configuration.py

@@ -132,6 +132,10 @@ def _load_config() -> Config:
             Path("test/"),
             Path("setup.cfg"),
             Path("pyproject.toml"),
+            Path("uv.lock"),
+            Path("poetry.lock"),
+            Path("Pipfile.lock"),
+            Path("pdm.lock"),
         ]
         + list(Path(".").glob("test*.py")),
         max_stack_depth=s("max_stack_depth", -1),

tests/test_configuration.py

@@ -361,3 +361,7 @@ def test_also_copy_includes_defaults(self, in_tmp_dir: Path):
         assert Path("test/") in config.also_copy
         assert Path("setup.cfg") in config.also_copy
         assert Path("pyproject.toml") in config.also_copy
+        assert Path("uv.lock") in config.also_copy
+        assert Path("poetry.lock") in config.also_copy
+        assert Path("Pipfile.lock") in config.also_copy
+        assert Path("pdm.lock") in config.also_copy