From 6e9d27592d46b9b48c7e11c102948216076c138c Mon Sep 17 00:00:00 2001
From: WenyXu <wenymedia@gmail.com>
Date: Thu, 28 Dec 2023 14:46:13 +0000
Subject: [PATCH] fix: should set append flag to fopen

---
 tests/runner/src/env.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/runner/src/env.rs b/tests/runner/src/env.rs
index 3dcb93280752..76946ad6ba60 100644
--- a/tests/runner/src/env.rs
+++ b/tests/runner/src/env.rs
@@ -187,6 +187,7 @@ impl Env {
             .create(true)
             .write(true)
             .truncate(truncate_log)
+            .append(!truncate_log)
             .open(log_file_name)
             .unwrap();