diff --git a/scripts/clang-format.ignore b/scripts/clang-format.ignore
index c43ec0c..024f26b 100644
--- a/scripts/clang-format.ignore
+++ b/scripts/clang-format.ignore
@@ -1 +1,2 @@
-# Patterns for clang-format to ignore.
\ No newline at end of file
+# Patterns for clang-format to ignore.
+**/test
\ No newline at end of file
diff --git a/scripts/clang_format_report.py b/scripts/clang_format_report.py
index 88cf5c9..a692d02 100755
--- a/scripts/clang_format_report.py
+++ b/scripts/clang_format_report.py
@@ -54,6 +54,7 @@ def run(base_commit, ignore_config, step: Optional[Step], report: Optional[Repor
     ignore_lines = []
     if ignore_config is not None and os.path.exists(ignore_config):
         ignore_lines = open(ignore_config, 'r').readlines()
+    logging.debug("ignore patterns: " + str(';'.join(ignore_lines)))
     ignore = pathspec.PathSpec.from_lines(pathspec.patterns.GitWildMatchPattern, ignore_lines)
     patched_file: unidiff.PatchedFile
     success = True