debug: get more information about #1522

nedbat · Jan 3, 2023 · bc5bd7c · bc5bd7c
1 parent 9d2e1b0
commit bc5bd7c
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Showing 2 changed files with 3 additions and 1 deletion.
diff --git a/coverage/data.py b/coverage/data.py
@@ -161,6 +161,8 @@ def combine_parallel_data(
                     # The CoverageException has the file name in it, so just
                     # use the message as the warning.
                     data._warn(str(exc))
+                if message:
+                    message(f"Couldn't combine data file {rel_file_name}: {exc}")
                 delete_this_one = False
             else:
                 data.update(new_data, aliases=aliases)

diff --git a/coverage/sqldata.py b/coverage/sqldata.py
@@ -289,6 +289,7 @@ def _read_db(self) -> None:
         with self._dbs[threading.get_ident()] as db:
             try:
                 row = db.execute_one("select version from coverage_schema")
+                assert row is not None
             except Exception as exc:
                 if "no such table: coverage_schema" in str(exc):
                     self._init_db(db)
@@ -299,7 +300,6 @@ def _read_db(self) -> None:
                         )
                     ) from exc
             else:
-                assert row is not None
                 schema_version = row[0]
                 if schema_version != SCHEMA_VERSION:
                     raise DataError(