Unset YAMLFIX_CONFIG_PATH to prevent stray configuration files from failing tests

Author: viccie30

tests/conftest.py

@@ -1 +1,11 @@
 """Store the classes and fixtures used throughout the tests."""
+
+import os
+
+import pytest
+
+
+@pytest.fixture(autouse=True)
+def _unset_yamlfix_config_path() -> None:
+    """Unset YAMLFIX_CONFIG_PATH environment variable."""
+    os.environ.pop("YAMLFIX_CONFIG_PATH", None)