Add pytest-cov as test dependency

Author: ZipFile

pyproject.toml

@@ -52,8 +52,12 @@ testpaths = ["tests"]
 
 [tool.coverage.run]
 branch = true
+relative_files = true
 source = ["sonyflake_turbo"]
 
+[tool.coverage.report]
+show_missing = true
+
 [tool.isort]
 profile = "black"
 
@@ -71,4 +75,4 @@ warn_unused_configs = true
 
 [tool.cibuildwheel]
 test-command = "pytest --import-mode=importlib -p no:cacheprovider {project}/tests"
-test-requires = ["pytest", "pytest-asyncio", "pytest-trio"]
+test-requires = ["pytest", "pytest-cov", "pytest-asyncio", "pytest-trio"]

src/sonyflake_turbo/pure.py

@@ -4,7 +4,7 @@
 
 try:
     from typing import Self
-except ImportError:
+except ImportError:  # pragma: no cover
     from typing_extensions import Self