Decode bytes when reading sanitizer's stderr

1 files changed, 6 insertions, 2 deletions

diff --git a/library/python/testing/yatest_common/yatest/common/process.py b/library/python/testing/yatest_common/yatest/common/process.py
index 2b6ae26c53..044208d4cf 100644
--- a/library/python/testing/yatest_common/yatest/common/process.py
+++ b/library/python/testing/yatest_common/yatest/common/process.py
@@ -443,12 +443,16 @@ class _Execution(object):
         if self._std_err and self._check_sanitizer and runtime._get_ya_config().sanitizer_extra_checks:
             build_path = runtime.build_path()
             if self.command[0].startswith(build_path):
-                match = re.search(SANITIZER_ERROR_PATTERN, self._std_err)
+                std_err, failed = _try_convert_bytes_to_string(self._std_err)
+                if failed:
+                    raise ValueError("failed to convert std err from bytes to string")
+
+                match = re.search(SANITIZER_ERROR_PATTERN, std_err)
                 if match:
                     yatest_logger.error(
                         "%s sanitizer found errors:\n\tstd_err:%s\n",
                         match.group(1),
-                        truncate(self.std_err, MAX_OUT_LEN),
+                        truncate(std_err, MAX_OUT_LEN),
                     )
                     raise ExecutionError(self)
                 else: