diff --git a/tests/ZM/Container/ContainerTest.php b/tests/ZM/Container/ContainerTest.php
index 09951178..4029374a 100644
--- a/tests/ZM/Container/ContainerTest.php
+++ b/tests/ZM/Container/ContainerTest.php
@@ -13,12 +13,12 @@ use ZM\Container\WorkerContainer;
  */
 class ContainerTest extends TestCase
 {
-    public function testInherit(): void
+    public function testCanInheritParentBinding(): void
     {
         $worker_container = new WorkerContainer();
         $worker_container->instance('foo', 'bar');
 
-        $container = new Container($worker_container);
+        $container = new Container();
         $container->instance('baz', 'qux');
 
         // 获取父容器的实例
@@ -27,4 +27,26 @@ class ContainerTest extends TestCase
         // 获取自身容器的实例
         $this->assertEquals('qux', $container->get('baz'));
     }
+
+    public function testCanOverrideParentBinding(): void
+    {
+        $worker_container = new WorkerContainer();
+        $worker_container->instance('foo', 'bar');
+
+        $container = new Container();
+        $container->instance('foo', 'qux');
+
+        $this->assertEquals('qux', $container->get('foo'));
+    }
+
+    public function testCannotModifyParentBinding(): void
+    {
+        $worker_container = new WorkerContainer();
+        $worker_container->instance('foo', 'bar');
+
+        $container = new Container();
+        $container->instance('foo', 'qux');
+
+        $this->assertEquals('bar', $worker_container->get('foo'));
+    }
 }