diff --git a/services/cameraservice/sourceservice/test/unittest/common/distributedcamera/BUILD.gn b/services/cameraservice/sourceservice/test/unittest/common/distributedcamera/BUILD.gn
index c6404b98b1b58efe5acf1135378fcefabcacf325..18d6f5f5ac1c8822686b72f04f1c4eae0b3a2d85 100644
--- a/services/cameraservice/sourceservice/test/unittest/common/distributedcamera/BUILD.gn
+++ b/services/cameraservice/sourceservice/test/unittest/common/distributedcamera/BUILD.gn
@@ -65,6 +65,11 @@ ohos_unittest("DCameraSourceTest") {
     "distributed_camera_source_stub_test.cpp",
   ]
 
+  cflags = [
+    "-Dprivate=public",
+    "-Dprotected=public",
+  ]
+
   configs = [ ":module_private_config" ]
 
   deps = [
diff --git a/services/cameraservice/sourceservice/test/unittest/common/distributedcamera/dcamera_source_callback_proxy_test.cpp b/services/cameraservice/sourceservice/test/unittest/common/distributedcamera/dcamera_source_callback_proxy_test.cpp
index 2c466a2c4976b6302b4ec5256b104baea948773e..49425de7871f15e623cfe4416cbd893fe673deb2 100644
--- a/services/cameraservice/sourceservice/test/unittest/common/distributedcamera/dcamera_source_callback_proxy_test.cpp
+++ b/services/cameraservice/sourceservice/test/unittest/common/distributedcamera/dcamera_source_callback_proxy_test.cpp
@@ -132,5 +132,68 @@ HWTEST_F(DcameraSourceCallbackProxyTest, dcamera_source_callback_proxy_test_003,
     ret = callbackProxy->OnNotifyUnregResult(TEST_DEVICE_ID, TEST_CAMERA_DH_ID_0, TEST_REQID, status, TEST_ATTRS);
     EXPECT_EQ(DCAMERA_OK, status);
 }
+
+/**
+ * @tc.name: CheckParams_001
+ * @tc.desc: Verify the CheckParams function.
+ * @tc.type: FUNC
+ * @tc.require: issue
+ */
+HWTEST_F(DcameraSourceCallbackProxyTest, CheckParams_001, TestSize.Level1)
+{
+    DHLOGI("DcameraSourceCallbackProxyTest::CheckParams_001");
+    sptr<ISystemAbilityManager> samgr =
+        SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
+    sptr<IRemoteObject> remoteObject = samgr->GetSystemAbility(DISTRIBUTED_HARDWARE_CAMERA_SOURCE_SA_ID);
+    sptr<DCameraSourceCallbackProxy> callbackProxy(new DCameraSourceCallbackProxy(remoteObject));
+
+    EXPECT_EQ(false, callbackProxy->CheckParams("", "dhId", 0));
+    EXPECT_EQ(false, callbackProxy->CheckParams("devId", "", 0));
+
+    std::string devId(257, '1');
+    EXPECT_EQ(false, callbackProxy->CheckParams(devId, "dhId", 0));
+
+    std::string dhId(257, '1');
+    EXPECT_EQ(false, callbackProxy->CheckParams("devId", dhId, 0));
+
+    EXPECT_EQ(false, callbackProxy->CheckParams("devId", "dhId", -1));
+    EXPECT_EQ(true, callbackProxy->CheckParams("devId", "dhId", 0));
+}
+
+/**
+ * @tc.name: OnDataSyncTrigger_001
+ * @tc.desc: Verify the OnDataSyncTrigger function.
+ * @tc.type: FUNC
+ * @tc.require: issue
+ */
+HWTEST_F(DcameraSourceCallbackProxyTest, OnDataSyncTrigger_001, TestSize.Level1)
+{
+    DHLOGI("DcameraSourceCallbackProxyTest::OnDataSyncTrigger_001");
+    sptr<ISystemAbilityManager> samgr =
+        SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
+    sptr<IRemoteObject> remoteObject = samgr->GetSystemAbility(DISTRIBUTED_HARDWARE_CAMERA_SOURCE_SA_ID);
+    sptr<DCameraSourceCallbackProxy> callbackProxy(new DCameraSourceCallbackProxy(remoteObject));
+
+    EXPECT_EQ(DCAMERA_BAD_VALUE, callbackProxy->OnDataSyncTrigger(""));
+    std::string devId(257, '1');
+    EXPECT_EQ(DCAMERA_BAD_VALUE, callbackProxy->OnDataSyncTrigger(devId));
+}
+
+/**
+ * @tc.name: OnHardwareStateChanged_001
+ * @tc.desc: Verify the OnHardwareStateChanged function.
+ * @tc.type: FUNC
+ * @tc.require: issue
+ */
+HWTEST_F(DcameraSourceCallbackProxyTest, OnHardwareStateChanged_001, TestSize.Level1)
+{
+    DHLOGI("DcameraSourceCallbackProxyTest::OnHardwareStateChanged_001");
+    sptr<ISystemAbilityManager> samgr =
+        SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
+    sptr<IRemoteObject> remoteObject = samgr->GetSystemAbility(DISTRIBUTED_HARDWARE_CAMERA_SOURCE_SA_ID);
+    sptr<DCameraSourceCallbackProxy> callbackProxy(new DCameraSourceCallbackProxy(remoteObject));
+
+    EXPECT_EQ(DCAMERA_BAD_VALUE, callbackProxy->OnHardwareStateChanged("", "", -1));
+}
 } // namespace DistributedHardware
 } // namespace OHOS
\ No newline at end of file