Merge pull request ClickHouse#78817 from azat/tests/better-exception-detection

tests: better Exception in stdout detection

Author: azat

tests/clickhouse-test

@@ -1632,7 +1632,9 @@ class TestCase:
                 description,
             )
 
-        if "Exception" in stdout and "X-ClickHouse-Exception-Code" not in stdout:
+        # "X-ClickHouse-Exception-Code" included in "Access-Control-Expose-Headers"
+        # "Exception" may be included into i.e. metric name
+        if re.search(r'(^|\W)(Net|Errno|)Exception(\W|$)', stdout) and "X-ClickHouse-Exception-Code" not in stdout:
             description += "\n{}\n".format("\n".join(stdout.splitlines()[:100]))
             if debug_log:
                 description += "\n"