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test: add mutation testing with mutmut #40

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Merged
zurfjereluhmie merged 1 commit into from
Apr 22, 2026
Merged

test: add mutation testing with mutmut #40

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1 change: 1 addition & 0 deletions .gitignore
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@ wheels/
.coverage
.coverage.*
htmlcov/
mutants/

# Linting / type-checking caches
.ruff_cache/
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5 changes: 4 additions & 1 deletion Makefile
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@@ -1,6 +1,6 @@
.DEFAULT_GOAL := help

.PHONY: help install install-dev install-demo sync lint format typecheck test test-integration coverage check fix pre-commit docs docs-serve clean
.PHONY: help install install-dev install-demo sync lint format typecheck test test-integration coverage mutate check fix pre-commit docs docs-serve clean

help: ## Show this help message
@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) \
Expand Down Expand Up @@ -36,6 +36,9 @@ test-integration: ## Run integration tests (requires Phoenix)
coverage: ## Run pytest with coverage report
uv run pytest tests/ -q --cov=evalwire --cov-report=term-missing --cov-fail-under=85

mutate: ## Run mutation testing with mutmut
uv run mutmut run

check: lint format typecheck test ## Run all checks (lint, format, typecheck, test)

fix: ## Auto-fix lint and format issues
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7 changes: 7 additions & 0 deletions pyproject.toml
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Expand Up @@ -69,12 +69,19 @@ markers = [
]
addopts = "-m 'not integration'"

[tool.mutmut]
paths_to_mutate = ["src/evalwire/"]
pytest_add_cli_args_test_selection = ["tests/"]
pytest_add_cli_args = ["--ignore=tests/test_evaluators_property.py", "--ignore=tests/integration"]
do_not_mutate = ["*__init__.py", "*cli.py"]

[dependency-groups]
dev = [
"hypothesis>=6.152.1",
"mkdocs>=1.6.1",
"mkdocs-material>=9.0",
"mkdocstrings[python]>=0.25",
"mutmut>=3.5",
"pre-commit>=4.5.1",
"pytest>=8.0",
"pytest-asyncio>=0.23",
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