debug: fix

tests/modmail/conftest.py

@@ -6,6 +6,8 @@
 import dotenv
 import pytest
 
+_ORIG_ENVIRON = None
+
 
 def pytest_report_header(config) -> str:
     """Pytest headers."""
@@ -25,20 +27,16 @@ def _get_env():
 
 
 def pytest_configure():
-    """Check that the test specific env file exists, and cancel the run if it does not exist."""
+    """Load the test specific environment file, exit if it does not exist."""
     env = _get_env()
     if not env.is_file():
         pytest.exit(f"Testing specific {env} does not exist. Cancelling test run.", 2)
+    os.environ.clear()
+    dotenv.load_dotenv(_get_env(), override=True)
 
 
-@pytest.fixture(autouse=True, scope="package")
-def standardize_environment():
-    """Clear environment variables except for the test.env file."""
-    env = _get_env()
-    with unittest.mock.patch.dict(os.environ, clear=True):
-
-        yield
-
-
-os.environ = dict()
-dotenv.load_dotenv(_get_env())
+def pytest_unconfigure():
+    """Reset os.environ to the original environment before the run."""
+    if _ORIG_ENVIRON is not None:
+        os.environ.clear()
+        os.environ.update(**_ORIG_ENVIRON)