diff --git a/camera/test/mpi/src/adapter_test.cpp b/camera/test/mpi/src/adapter_test.cpp
index baaf5262b1308d767887344bf56db0e2cd32bbd3..c2fd31f60ce90dfdeb12d359a4c16648d1e069e2 100644
--- a/camera/test/mpi/src/adapter_test.cpp
+++ b/camera/test/mpi/src/adapter_test.cpp
@@ -42,6 +42,7 @@ HWTEST_F(AdapterTest, Camera_Adapter_0001, TestSize.Level0)
 {
     std::cout << "==========[test log]Preview stream, 640*480, expected success." << std::endl;
     // Start stream
+    EXPECT_NE(Test_, nullptr);
     Test_->intents = {Camera::PREVIEW};
     Test_->StartStream(Test_->intents);
     // Get preview
diff --git a/camera/test/mpi/src/buffer_manager_test.cpp b/camera/test/mpi/src/buffer_manager_test.cpp
index 44bedae1b728b87c57d47ef39bac1b9279fb2bf0..b7edbbf60b0cda2c0203fbd1e6e18fd51c906f54 100644
--- a/camera/test/mpi/src/buffer_manager_test.cpp
+++ b/camera/test/mpi/src/buffer_manager_test.cpp
@@ -44,6 +44,7 @@ HWTEST_F(BufferManagerTest, Camera_Buffer_0001, TestSize.Level0)
 {
     std::cout << "==========[test log]Preview stream, 640*480, expected success." << std::endl;
     // Start stream
+    EXPECT_NE(Test_, nullptr);
     Test_->intents = {Camera::PREVIEW};
     Test_->StartStream(Test_->intents);
     // Get preview
diff --git a/camera/test/mpi/src/device_manager_test.cpp b/camera/test/mpi/src/device_manager_test.cpp
index 4087039e33b3149a974de8df5c874d3a15af5694..9a834aebf004b8c863f3eb2bfb561355e5917b39 100644
--- a/camera/test/mpi/src/device_manager_test.cpp
+++ b/camera/test/mpi/src/device_manager_test.cpp
@@ -43,6 +43,7 @@ HWTEST_F(DeviceManagerTest, Camera_Device_0001, TestSize.Level2)
 {
     std::cout << "==========[test log]Preview stream, 640*480, expected success." << std::endl;
     // Start stream
+    EXPECT_NE(Test_, nullptr);
     Test_->intents = {Camera::PREVIEW};
     Test_->StartStream(Test_->intents);
     // Get preview
diff --git a/camera/test/ut/v4l2/adapter_test.cpp b/camera/test/ut/v4l2/adapter_test.cpp
index b1745d42f743a5f048217701f54bf216f859e443..3bd43e8f2840ba654bd6dd5005d4f21a7a6e51c6 100644
--- a/camera/test/ut/v4l2/adapter_test.cpp
+++ b/camera/test/ut/v4l2/adapter_test.cpp
@@ -41,6 +41,7 @@ TEST_F(UtestAdapterTest, camera_adapter_0001)
 {
     std::cout << "==========[test log] Preview stream, expected success." << std::endl;
     // Get the stream manager
+    EXPECT_NE(cameraBase, nullptr);
     cameraBase->AchieveStreamOperator();
     // start stream
     cameraBase->intents = {PREVIEW};
diff --git a/camera/test/ut/v4l2/buffer_manager_test.cpp b/camera/test/ut/v4l2/buffer_manager_test.cpp
index 2b81ed1f214afdd5328ec977985245ce2be20bf5..a8719a1fefb510f8b77fd0be9fce6914557df205 100644
--- a/camera/test/ut/v4l2/buffer_manager_test.cpp
+++ b/camera/test/ut/v4l2/buffer_manager_test.cpp
@@ -43,6 +43,7 @@ TEST_F(UtestBufferManagerTest, camera_buffer_0001)
 {
     std::cout << "==========[test log] Preview stream, expected success." << std::endl;
     // Get the stream manager
+    EXPECT_NE(cameraBase, nullptr);
     cameraBase->AchieveStreamOperator();
     // start stream
     cameraBase->intents = {PREVIEW};
diff --git a/camera/test/ut/v4l2/camera_capture_test.cpp b/camera/test/ut/v4l2/camera_capture_test.cpp
index 47ac21678776262cbc33f800e0deb4e03e2c0d38..3e63e4427f22a8c90f9a53386c464b98f7aad2eb 100644
--- a/camera/test/ut/v4l2/camera_capture_test.cpp
+++ b/camera/test/ut/v4l2/camera_capture_test.cpp
@@ -41,6 +41,7 @@ void CameraCaptureTest::TearDown(void)
 HWTEST_F(CameraCaptureTest, camera_capture_001, TestSize.Level1)
 {
     // Get the stream manager
+    EXPECT_NE(cameraBase_, nullptr);
     cameraBase_->AchieveStreamOperator();
     // start stream
     cameraBase_->intents = {PREVIEW, STILL_CAPTURE};
@@ -65,6 +66,7 @@ HWTEST_F(CameraCaptureTest, camera_capture_002, TestSize.Level1)
 {
     CAMERA_LOGD("Preview + capture, then close camera, and preview + capture again.");
     // Get the stream manager
+    EXPECT_NE(cameraBase_, nullptr);
     cameraBase_->AchieveStreamOperator();
     // start stream
     cameraBase_->intents = {PREVIEW, STILL_CAPTURE};
@@ -104,6 +106,7 @@ HWTEST_F(CameraCaptureTest, camera_capture_003, TestSize.Level1)
 {
     CAMERA_LOGD("Capture with 3A, success.");
     // Get the stream manager
+    EXPECT_NE(cameraBase_, nullptr);
     cameraBase_->AchieveStreamOperator();
     // start stream
     cameraBase_->intents = {PREVIEW, STILL_CAPTURE};
@@ -143,6 +146,7 @@ HWTEST_F(CameraCaptureTest, camera_capture_004, TestSize.Level1)
     CAMERA_LOGD("Preview + capture, then switch to preview + video.");
     CAMERA_LOGD("First, create preview + capture.");
     // Get the stream manager
+    EXPECT_NE(cameraBase_, nullptr);
     cameraBase_->AchieveStreamOperator();
     // start stream
     cameraBase_->intents = {PREVIEW, STILL_CAPTURE};
diff --git a/camera/test/ut/v4l2/camera_video_test.cpp b/camera/test/ut/v4l2/camera_video_test.cpp
index 40160d3011640bb98054f60a141bacdeeec3e077..37191164d2b0499a7ae88640f1eaf3d95d62b296 100644
--- a/camera/test/ut/v4l2/camera_video_test.cpp
+++ b/camera/test/ut/v4l2/camera_video_test.cpp
@@ -186,6 +186,7 @@ HWTEST_F(CameraVideoTest, camera_video_001, TestSize.Level1)
 {
     CAMERA_LOGD("Preview + video, commit together, success.");
     // Create and get streamOperator information
+    EXPECT_NE(cameraBase_, nullptr);
     cameraBase_->AchieveStreamOperator();
     // start stream
     cameraBase_->intents = {PREVIEW, VIDEO};
@@ -342,6 +343,7 @@ HWTEST_F(CameraVideoTest, camera_video_005, TestSize.Level1)
 {
     CAMERA_LOGD("Preview + video, commit together, success.");
     // Create and get streamOperator information
+    EXPECT_NE(cameraBase_, nullptr);
     cameraBase_->AchieveStreamOperator();
     // start stream
     cameraBase_->intents = {PREVIEW, VIDEO};
@@ -366,6 +368,7 @@ HWTEST_F(CameraVideoTest, camera_video_010, TestSize.Level2)
 {
     CAMERA_LOGD("Video start&stop, for 5 times, success.");
     // Create and get streamOperator information
+    EXPECT_NE(cameraBase_, nullptr);
     cameraBase_->AchieveStreamOperator();
     for (int i = 0; i < 5; i++) {
     // start stream
@@ -392,6 +395,7 @@ HWTEST_F(CameraVideoTest, camera_video_011, TestSize.Level2)
 {
     CAMERA_LOGD("Video start&stop, for 5 times, success.");
     // Create and get streamOperator information
+    EXPECT_NE(cameraBase_, nullptr);
     cameraBase_->AchieveStreamOperator();
     for (int i = 0; i < 5; i++) {
         // start stream
diff --git a/camera/test/ut/v4l2/device_manager_test.cpp b/camera/test/ut/v4l2/device_manager_test.cpp
index 21fea4205ba527dd5e3de125e96df8758ed6f18b..0aee749e6a74cf9999e716bc79ac41250282ad07 100644
--- a/camera/test/ut/v4l2/device_manager_test.cpp
+++ b/camera/test/ut/v4l2/device_manager_test.cpp
@@ -40,6 +40,7 @@ TEST_F(UtestDeviceManagerTest, camera_devMan_0001)
 {
     std::cout << "==========[test log] Preview stream, expected success." << std::endl;
     // Get the stream manager
+    EXPECT_NE(cameraBase_, nullptr);
     cameraBase->AchieveStreamOperator();
     // start stream
     cameraBase->intents = {PREVIEW};
diff --git a/camera/test/ut/v4l2/hdfcamera_facedetect.cpp b/camera/test/ut/v4l2/hdfcamera_facedetect.cpp
index 36299e3f13f2211635a101c3ce76ab69a68d0821..32456e7c002797af58a772030b95edfae41e5375 100644
--- a/camera/test/ut/v4l2/hdfcamera_facedetect.cpp
+++ b/camera/test/ut/v4l2/hdfcamera_facedetect.cpp
@@ -110,6 +110,7 @@ static HWTEST_F(HdfCameraFaceDetect, CameraFaceDetect_001, TestSize.Level1)
 static HWTEST_F(HdfCameraFaceDetect, CameraFaceDetect_002, TestSize.Level1)
 {
     // Get the stream manager
+    EXPECT_NE(cameraBase_, nullptr);
     cameraBase_->AchieveStreamOperator();
     // start stream
     cameraBase_->intents = {PREVIEW, ANALYZE};