Checking incorrect patching: find_dart_source_samples_rows uses impor…

…ted lighthouse.helpers.create_dart_connection; not the origial lighthouse.db.dart.create_dart_connection. Patching the original is not correct and has no effect in this test

tests/helpers/test_dart.py

@@ -23,8 +23,8 @@ def test_find_dart_source_samples_rows_not_found_barcode(app, dart_samples):
 
 def test_exceptions_are_propagated_up(app, dart_samples):
     with app.app_context():
-        with patch("lighthouse.db.dart.create_dart_connection", side_effect=Exception()):
-            found = find_dart_source_samples_rows("unknown")
+        with patch("lighthouse.helpers.dart.create_dart_connection", side_effect=Exception()):
+            found = find_dart_source_samples_rows("unknown") # XXX: Raise exception here
             with raises(Exception):
                 found = find_dart_source_samples_rows("unknown")
                 assert found is None