fix coverage

Author: rmorshea

setup.cfg

@@ -34,6 +34,7 @@ exclude_lines =
     raise NotImplementedError
 omit =
     src/idom/__main__.py
+    src/idom/core/_fixed_jsonpatch.py
 
 [build_sphinx]
 all-files = true

src/idom/testing.py

@@ -224,7 +224,7 @@ def assert_idom_logged(
                 if clear_matched_records:
                     handler.records.remove(record)
 
-        if not found:
+        if not found:  # pragma: no cover
             conditions = []
             if match_message:
                 conditions.append(f"log message pattern {match_message!r}")