1. 将需要迁移的代码，统一移到 moved 目录下

moved/pay/pay-application/src/test/java/DubboGenericInvokerTest.java

@@ -0,0 +1,32 @@
+import org.apache.dubbo.config.ApplicationConfig;
+import org.apache.dubbo.config.ReferenceConfig;
+import org.apache.dubbo.config.RegistryConfig;
+import org.apache.dubbo.rpc.service.GenericService;
+
+public class DubboGenericInvokerTest {
+
+    public static void main(String[] args) {
+        ApplicationConfig application = new ApplicationConfig();
+        application.setName("api-generic-consumer");
+
+        RegistryConfig registry = new RegistryConfig();
+        registry.setAddress("zookeeper://127.0.0.1:2181");
+
+        application.setRegistry(registry);
+
+        ReferenceConfig<GenericService> reference = new ReferenceConfig<>();
+        // 弱类型接口名
+        reference.setInterface("cn.iocoder.mall.order.api.OrderService");
+        // 声明为泛化接口
+        reference.setGeneric(true);
+
+        reference.setApplication(application);
+
+        // 用com.alibaba.dubbo.rpc.service.GenericService可以替代所有接口引用
+        GenericService genericService = reference.get();
+
+        String name = (String) genericService.$invoke("updatePaySuccess", new String[]{String.class.getName()}, new Object[]{"1"});
+        System.out.println(name);
+    }
+
+}

moved/pay/pay-application/src/test/java/PayRefundServiceImplTest.java

@@ -0,0 +1,29 @@
+package cn.iocoder.mall.pay.biz.service;
+
+import cn.iocoder.mall.pay.api.PayRefundService;
+import cn.iocoder.mall.pay.api.dto.refund.PayRefundSubmitDTO;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.NONE)
+public class PayRefundServiceImplTest {
+
+    @Autowired
+    private PayRefundService payRefundService;
+
+    @Test
+    public void testSubmitRefund() {
+        PayRefundSubmitDTO payRefundSubmitDTO = new PayRefundSubmitDTO()
+                .setAppId("POd4RC6a")
+                .setCreateIp("127.0.0.1")
+                .setOrderId("13500000")
+                .setOrderDescription("测试下退款")
+                .setPrice(1);
+        payRefundService.submitRefund(payRefundSubmitDTO);
+    }
+
+}