From f3860a764013cfeafb518e1e69c19bf1e76fc4d9 Mon Sep 17 00:00:00 2001
From: Bluemangoo <chenfy2006@qq.com>
Date: Tue, 3 Jun 2025 22:27:30 +0800
Subject: [PATCH] vmstat: add test for `--timestamp`

---
 tests/by-util/test_vmstat.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/tests/by-util/test_vmstat.rs b/tests/by-util/test_vmstat.rs
index f26cf96..a37a790 100644
--- a/tests/by-util/test_vmstat.rs
+++ b/tests/by-util/test_vmstat.rs
@@ -69,3 +69,15 @@ fn test_active() {
         .unwrap()
         .contains("active"));
 }
+
+#[test]
+#[cfg(target_os = "linux")]
+fn test_timestamp() {
+    let result = new_ucmd!().arg("-t").succeeds();
+    assert!(result
+        .stdout_str()
+        .lines()
+        .next()
+        .unwrap()
+        .contains("timestamp"));
+}