diff --git a/dubbo-cluster/src/test/java/org/apache/dubbo/rpc/cluster/support/wrapper/MockClusterInvokerTest.java b/dubbo-cluster/src/test/java/org/apache/dubbo/rpc/cluster/support/wrapper/MockClusterInvokerTest.java
index 1c63de651e39..e7e2ff77663d 100644
--- a/dubbo-cluster/src/test/java/org/apache/dubbo/rpc/cluster/support/wrapper/MockClusterInvokerTest.java
+++ b/dubbo-cluster/src/test/java/org/apache/dubbo/rpc/cluster/support/wrapper/MockClusterInvokerTest.java
@@ -226,36 +226,41 @@ void testMockInvokerFromOverride_Invoke_Fock_someMethods() {
      * Test if mock policy works fine: fail-mock
      */
     @Test
-    void testMockInvokerFromOverride_Invoke_Fock_WithOutDefault() {
-        URL url = URL.valueOf("remote://1.2.3.4/" + IHelloService.class.getName())
-                .addParameter(
-                        REFER_KEY,
-                        URL.encode(PATH_KEY + "=" + IHelloService.class.getName()
-                                + "&" + "getSomething.mock=fail:return x"
-                                + "&" + "getSomething2.mock=fail:return y"))
-                .addParameter("invoke_return_error", "true");
-        Invoker<IHelloService> cluster = getClusterInvoker(url);
-        // Configured with mock
+    void testMockInvokerFromOverride_Invoke_Fock_WithOutDefault_getSomething() {
+        Invoker<IHelloService> cluster = getFailMockClusterInvokerWithoutDefault();
+
         RpcInvocation invocation = new RpcInvocation();
         invocation.setMethodName("getSomething");
         Result ret = cluster.invoke(invocation);
         Assertions.assertEquals("x", ret.getValue());
 
-        // If no mock was configured, return null directly
         invocation = new RpcInvocation();
         invocation.setMethodName("getSomething2");
         ret = cluster.invoke(invocation);
         Assertions.assertEquals("y", ret.getValue());
+    }
 
-        // If no mock was configured, return null directly
-        invocation = new RpcInvocation();
+    /**
+     * Test if mock policy works fine: fail-mock
+     */
+    @Test
+    void testMockInvokerFromOverride_Invoke_Fock_WithOutDefault_notConfigure() {
+        Invoker<IHelloService> cluster = getFailMockClusterInvokerWithoutDefault();
+
+        RpcInvocation invocation = new RpcInvocation();
         invocation.setMethodName("getSomething3");
-        try {
-            ret = cluster.invoke(invocation);
-            Assertions.fail();
-        } catch (RpcException e) {
+        Assertions.assertThrows(RpcException.class, () -> cluster.invoke(invocation));
+    }
 
-        }
+    private Invoker<IHelloService> getFailMockClusterInvokerWithoutDefault() {
+        URL url = URL.valueOf("remote://1.2.3.4/" + IHelloService.class.getName())
+                .addParameter(
+                        REFER_KEY,
+                        URL.encode(PATH_KEY + "=" + IHelloService.class.getName()
+                                + "&" + "getSomething.mock=fail:return x"
+                                + "&" + "getSomething2.mock=fail:return y"))
+                .addParameter("invoke_return_error", "true");
+        return getClusterInvoker(url);
     }
 
     /**