diff --git a/manager/src/main/java/org/apache/hertzbeat/manager/service/impl/SystemSecretServiceImpl.java b/manager/src/main/java/org/apache/hertzbeat/manager/service/impl/SystemSecretServiceImpl.java
index 4e3eb812d09..4c25b12adc3 100644
--- a/manager/src/main/java/org/apache/hertzbeat/manager/service/impl/SystemSecretServiceImpl.java
+++ b/manager/src/main/java/org/apache/hertzbeat/manager/service/impl/SystemSecretServiceImpl.java
@@ -37,7 +37,7 @@ public class SystemSecretServiceImpl extends AbstractGeneralConfigServiceImpl<Sy
      * @param generalConfigDao ConfigDao object
      * @param objectMapper     JSON tool object
      */
-    protected SystemSecretServiceImpl(GeneralConfigDao generalConfigDao, ObjectMapper objectMapper) {
+    public SystemSecretServiceImpl(GeneralConfigDao generalConfigDao, ObjectMapper objectMapper) {
         super(generalConfigDao, objectMapper);
     }
     
@@ -47,7 +47,7 @@ public String type() {
     }
     
     @Override
-    protected TypeReference<SystemSecret> getTypeReference() {
+    public TypeReference<SystemSecret> getTypeReference() {
         return new TypeReference<>() {
             @Override
             public Type getType() {
diff --git a/manager/src/test/java/org/apache/hertzbeat/manager/service/AvailableAlertDefineInitTest.java b/manager/src/test/java/org/apache/hertzbeat/manager/service/AvailableAlertDefineInitTest.java
new file mode 100644
index 00000000000..e2524e7c901
--- /dev/null
+++ b/manager/src/test/java/org/apache/hertzbeat/manager/service/AvailableAlertDefineInitTest.java
@@ -0,0 +1,103 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.hertzbeat.manager.service;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.apache.hertzbeat.alert.dao.AlertDefineDao;
+import org.apache.hertzbeat.common.constants.CommonConstants;
+import org.apache.hertzbeat.common.entity.alerter.AlertDefine;
+import org.apache.hertzbeat.common.entity.job.Job;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+/**
+ * test case for {@link AvailableAlertDefineInit}
+ */
+
+class AvailableAlertDefineInitTest {
+
+	@Mock
+	private AlertDefineDao alertDefineDao;
+
+	@Mock
+	private AppService appService;
+
+	@InjectMocks
+	private AvailableAlertDefineInit availableAlertDefineInit;
+
+	private Map<String, Job> map;
+
+	@BeforeEach
+	void setUp() {
+
+		MockitoAnnotations.openMocks(this);
+
+		map = new HashMap<>();
+		map.put("testApp", new Job());
+	}
+
+	@Test
+	void testRunAlertDefineIsEmpty() throws Exception {
+
+
+		when(appService.getAllAppDefines()).thenReturn(map);
+
+		when(alertDefineDao.queryAlertDefineByAppAndMetric("testApp", CommonConstants.AVAILABILITY))
+				.thenReturn(Collections.emptyList());
+
+		availableAlertDefineInit.run();
+
+		verify(alertDefineDao, times(1)).save(any(AlertDefine.class));
+	}
+
+	@Test
+	void testRunAlertDefineExists() throws Exception {
+
+		when(appService.getAllAppDefines()).thenReturn(map);
+		when(alertDefineDao.queryAlertDefineByAppAndMetric("testApp", CommonConstants.AVAILABILITY))
+				.thenReturn(List.of(new AlertDefine()));
+		availableAlertDefineInit.run();
+
+		verify(alertDefineDao, never()).save(any(AlertDefine.class));
+	}
+
+	@Test
+	void testRunExceptionHandling() throws Exception {
+
+		when(appService.getAllAppDefines()).thenReturn(map);
+		when(alertDefineDao.queryAlertDefineByAppAndMetric("testApp", CommonConstants.AVAILABILITY))
+				.thenThrow(new RuntimeException("Database error"));
+
+		availableAlertDefineInit.run();
+
+		verify(alertDefineDao, never()).save(any(AlertDefine.class));
+	}
+
+}
diff --git a/manager/src/test/java/org/apache/hertzbeat/manager/service/StatusPageServiceTest.java b/manager/src/test/java/org/apache/hertzbeat/manager/service/StatusPageServiceTest.java
index 822531cbe58..864c4a0e2fb 100644
--- a/manager/src/test/java/org/apache/hertzbeat/manager/service/StatusPageServiceTest.java
+++ b/manager/src/test/java/org/apache/hertzbeat/manager/service/StatusPageServiceTest.java
@@ -45,7 +45,7 @@
  * test case for {@link StatusPageServiceImpl}
  */
 
-class StatusPageServiceImplTest {
+class StatusPageServiceTest {
 
 	@Mock
 	private StatusPageOrgDao statusPageOrgDao;
diff --git a/manager/src/test/java/org/apache/hertzbeat/manager/service/SystemSecretServiceTest.java b/manager/src/test/java/org/apache/hertzbeat/manager/service/SystemSecretServiceTest.java
index 729cd130f61..688847e3c2b 100644
--- a/manager/src/test/java/org/apache/hertzbeat/manager/service/SystemSecretServiceTest.java
+++ b/manager/src/test/java/org/apache/hertzbeat/manager/service/SystemSecretServiceTest.java
@@ -17,11 +17,51 @@
 
 package org.apache.hertzbeat.manager.service;
 
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.apache.hertzbeat.manager.dao.GeneralConfigDao;
+import org.apache.hertzbeat.manager.pojo.dto.SystemSecret;
 import org.apache.hertzbeat.manager.service.impl.SystemSecretServiceImpl;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 /**
  * test case for {@link SystemSecretServiceImpl}
  */
 
 class SystemSecretServiceTest {
+
+	@Mock
+	private GeneralConfigDao generalConfigDao;
+
+	@Mock
+	private ObjectMapper objectMapper;
+
+	private SystemSecretServiceImpl systemSecretService;
+
+	@BeforeEach
+	void setUp() {
+
+		MockitoAnnotations.openMocks(this);
+
+		this.systemSecretService = new SystemSecretServiceImpl(generalConfigDao, objectMapper);
+	}
+
+	@Test
+	void testType() {
+
+		assertEquals("secret", systemSecretService.type());
+	}
+
+	@Test
+	void testGetTypeReference() {
+
+		TypeReference<SystemSecret> typeReference = systemSecretService.getTypeReference();
+		assertEquals(SystemSecret.class, typeReference.getType());
+	}
+
 }