diff --git a/tests/Feature/ChatControllerTest.php b/tests/Feature/ChatControllerTest.php
index 8798791..5ee4ea8 100644
--- a/tests/Feature/ChatControllerTest.php
+++ b/tests/Feature/ChatControllerTest.php
@@ -46,7 +46,7 @@ class ChatControllerTest extends TestCase
     protected function setUp(): void
     {
         parent::setUp();
-        Redis::flushall();
+        $this->flushChatRoomRedisState();
     }
 
     /**
diff --git a/tests/Feature/RideControllerTest.php b/tests/Feature/RideControllerTest.php
index 33ab14a..ea4525a 100644
--- a/tests/Feature/RideControllerTest.php
+++ b/tests/Feature/RideControllerTest.php
@@ -30,7 +30,7 @@ class RideControllerTest extends TestCase
     protected function setUp(): void
     {
         parent::setUp();
-        Redis::flushall();
+        $this->flushChatRoomRedisState();
     }
 
     /**
diff --git a/tests/Feature/ShopControllerTest.php b/tests/Feature/ShopControllerTest.php
index bf43b2a..c70644e 100644
--- a/tests/Feature/ShopControllerTest.php
+++ b/tests/Feature/ShopControllerTest.php
@@ -32,7 +32,7 @@ class ShopControllerTest extends TestCase
     protected function setUp(): void
     {
         parent::setUp();
-        Redis::flushall();
+        $this->flushChatRoomRedisState();
     }
 
     /**
diff --git a/tests/TestCase.php b/tests/TestCase.php
index fe1ffc2..271fdc0 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -3,8 +3,23 @@
 namespace Tests;
 
 use Illuminate\Foundation\Testing\TestCase as BaseTestCase;
+use Illuminate\Support\Facades\Redis;
 
+/**
+ * 测试基类
+ * 提供项目 Feature Test 共用的辅助方法。
+ */
 abstract class TestCase extends BaseTestCase
 {
-    //
+    /**
+     * 清理聊天室测试产生的 Redis 房间状态，避免误删浏览器登录会话。
+     */
+    protected function flushChatRoomRedisState(): void
+    {
+        $keys = Redis::keys('room:*');
+
+        if ($keys !== []) {
+            Redis::del(...$keys);
+        }
+    }
 }