diff --git a/client/src/test/java/com/alibaba/nacos/client/logging/log4j2/NacosClientPropertiesLookupTest.java b/client/src/test/java/com/alibaba/nacos/client/logging/log4j2/NacosClientPropertiesLookupTest.java
new file mode 100644
index 00000000000..bdc5f36cd39
--- /dev/null
+++ b/client/src/test/java/com/alibaba/nacos/client/logging/log4j2/NacosClientPropertiesLookupTest.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright 1999-2022 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.client.logging.log4j2;
+
+import com.alibaba.nacos.client.env.NacosClientProperties;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class NacosClientPropertiesLookupTest {
+    
+    @Test
+    public void testLookUp() {
+        NacosClientProperties.PROTOTYPE.setProperty("test.nacos.logging.lookup", "true");
+        NacosClientPropertiesLookup nacosClientPropertiesLookup = new NacosClientPropertiesLookup();
+        final String actual = nacosClientPropertiesLookup.lookup("test.nacos.logging.lookup");
+        Assert.assertEquals("true", actual);
+    }
+    
+}
diff --git a/client/src/test/java/com/alibaba/nacos/client/logging/logback/NacosClientPropertyActionTest.java b/client/src/test/java/com/alibaba/nacos/client/logging/logback/NacosClientPropertyActionTest.java
new file mode 100644
index 00000000000..df12ac33193
--- /dev/null
+++ b/client/src/test/java/com/alibaba/nacos/client/logging/logback/NacosClientPropertyActionTest.java
@@ -0,0 +1,118 @@
+/*
+ * Copyright 1999-2022 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.client.logging.logback;
+
+import ch.qos.logback.core.Context;
+import ch.qos.logback.core.ContextBase;
+import ch.qos.logback.core.joran.spi.ActionException;
+import ch.qos.logback.core.joran.spi.InterpretationContext;
+import com.alibaba.nacos.client.env.NacosClientProperties;
+import org.junit.Assert;
+import org.junit.Test;
+import org.mockito.Mockito;
+import org.xml.sax.Attributes;
+
+public class NacosClientPropertyActionTest {
+    
+    @Test
+    public void testLookUpVar() throws ActionException {
+    
+        NacosClientProperties.PROTOTYPE.setProperty("test.nacos.logging.action.lookup", "true");
+        
+        Context context = new ContextBase();
+        final InterpretationContext interpretationContext = new InterpretationContext(context, null);
+        
+        final Attributes mockAttr = Mockito.mock(AttributesForTest.class);
+        Mockito.when(mockAttr.getValue(Mockito.eq("name"))).thenReturn("logPath");
+        Mockito.when(mockAttr.getValue(Mockito.eq("source"))).thenReturn("test.nacos.logging.action.lookup");
+        Mockito.when(mockAttr.getValue(Mockito.eq("scope"))).thenReturn("context");
+        Mockito.when(mockAttr.getValue(Mockito.eq("defaultValue"))).thenReturn("/root");
+    
+        NacosClientPropertyAction nacosClientPropertyAction = new NacosClientPropertyAction();
+        nacosClientPropertyAction.setContext(context);
+        
+        nacosClientPropertyAction.begin(interpretationContext, "nacosClientProperty", mockAttr);
+    
+        final String actual = context.getProperty("logPath");
+        Assert.assertEquals("true", actual);
+    
+    }
+    
+    static class AttributesForTest implements Attributes {
+        
+        @Override
+        public int getLength() {
+            return 0;
+        }
+        
+        @Override
+        public String getURI(int index) {
+            return null;
+        }
+        
+        @Override
+        public String getLocalName(int index) {
+            return null;
+        }
+        
+        @Override
+        public String getQName(int index) {
+            return null;
+        }
+        
+        @Override
+        public int getIndex(String uri, String localName) {
+            return 0;
+        }
+        
+        @Override
+        public int getIndex(String qName) {
+            return 0;
+        }
+        
+        @Override
+        public String getType(int index) {
+            return null;
+        }
+        
+        @Override
+        public String getType(String uri, String localName) {
+            return null;
+        }
+        
+        @Override
+        public String getType(String qName) {
+            return null;
+        }
+    
+        @Override
+        public String getValue(int index) {
+            return null;
+        }
+        
+        @Override
+        public String getValue(String uri, String localName) {
+            return null;
+        }
+        
+        @Override
+        public String getValue(String qName) {
+            return null;
+        }
+    }
+    
+}