[ISSUE #6894] add the unit test of com.alibaba.nacos.naming.remote.rp…

…c.filter. (#6905)

naming/src/test/java/com/alibaba/nacos/naming/remote/rpc/filter/GrpcRequestFilterTest.java

@@ -0,0 +1,61 @@
+/*
+ *  Copyright 1999-2021 Alibaba Group Holding Ltd.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ */
+
+package com.alibaba.nacos.naming.remote.rpc.filter;
+
+import com.alibaba.nacos.api.exception.NacosException;
+import com.alibaba.nacos.api.naming.remote.request.InstanceRequest;
+import com.alibaba.nacos.api.remote.request.RequestMeta;
+import com.alibaba.nacos.api.remote.response.Response;
+import com.alibaba.nacos.naming.core.v2.upgrade.UpgradeJudgement;
+import com.alibaba.nacos.naming.remote.rpc.handler.InstanceRequestHandler;
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.junit.MockitoJUnitRunner;
+
+/**
+ * {@link GrpcRequestFilter} unit test.
+ *
+ * @author chenglu
+ * @date 2021-09-17 16:25
+ */
+@RunWith(MockitoJUnitRunner.class)
+public class GrpcRequestFilterTest {
+
+    @InjectMocks
+    private GrpcRequestFilter grpcRequestFilter;
+
+    @Mock
+    private UpgradeJudgement upgradeJudgement;
+
+    @Test
+    public void testFilter() throws NacosException {
+        Mockito.when(upgradeJudgement.isUseGrpcFeatures()).thenReturn(true).thenReturn(false);
+        Response response = grpcRequestFilter.filter(new InstanceRequest(), new RequestMeta(), InstanceRequestHandler.class);
+        Assert.assertNull(response);
+
+        try {
+            grpcRequestFilter.filter(new InstanceRequest(), new RequestMeta(), InstanceRequestHandler.class);
+        } catch (Exception e) {
+            Assert.assertTrue(e instanceof NacosException);
+        }
+    }
+}