feat: extra testing helper (#203)

Signed-off-by: Henry Schreiner <[email protected]>

src/repo_review/testing.py

@@ -8,10 +8,29 @@
 import textwrap
 from typing import Any
 
+from ._compat import tomllib
 from .checks import Check, get_check_url, process_result_bool
 from .fixtures import apply_fixtures
 from .processor import Result
 
+__all__ = ["toml_loads", "compute_check"]
+
+
+def __dir__() -> list[str]:
+    return __all__
+
+
+def toml_loads(contents: str, /) -> Any:
+    """
+    A helper function to quickly load a TOML string for Python 3.10+.
+
+    :param contents: The TOML string to load.
+    :return: The loaded TOML.
+
+    .. versionadded:: 0.10.6
+    """
+    return tomllib.loads(contents)
+
 
 def compute_check(name: str, /, **fixtures: Any) -> Result:
     """

tests/test_package.py

@@ -51,3 +51,8 @@ def test_testing_function():
 
     assert repo_review.testing.compute_check("RF001", ruff={}).result
     assert not repo_review.testing.compute_check("RF001", ruff=None).result
+
+
+def test_toml_function():
+    pyproject = repo_review.testing.toml_loads("one.two = 3")
+    assert pyproject == {"one": {"two": 3}}