diff --git a/av_transport/av_trans_engine/filters/test/av_trans_coder_filter_test/av_trans_audio_decoder_filter_test.cpp b/av_transport/av_trans_engine/filters/test/av_trans_coder_filter_test/av_trans_audio_decoder_filter_test.cpp
index 07fe9de5124334e6e6deb7ea7106bd8397adafc6..2bc544de5c597cca5e8629a8b07f068cff2e4e9d 100644
--- a/av_transport/av_trans_engine/filters/test/av_trans_coder_filter_test/av_trans_audio_decoder_filter_test.cpp
+++ b/av_transport/av_trans_engine/filters/test/av_trans_coder_filter_test/av_trans_audio_decoder_filter_test.cpp
@@ -144,8 +144,8 @@ HWTEST_F(AvTransportAudioDecoderFilterTest, ProcessData_001, testing::ext::TestS
     // initial codeMem
     OH_AVBuffer *codecMem = nullptr;
     ret = avAudioDecoderTest_->ProcessData(audioData, 0, codecMem);
-    EXPECT_EQ(Status::ERROR_INVALID_OPERATION, ret);
     delete codecMem;
+    EXPECT_EQ(Status::ERROR_INVALID_OPERATION, ret);
 }
 
 HWTEST_F(AvTransportAudioDecoderFilterTest, OnDecInputBufferAvailable_001, testing::ext::TestSize.Level1)
@@ -153,8 +153,8 @@ HWTEST_F(AvTransportAudioDecoderFilterTest, OnDecInputBufferAvailable_001, testi
     std::shared_ptr<Pipeline::AudioDecoderFilter> avAudioDecoderTest_ =
         std::make_shared<Pipeline::AudioDecoderFilter>("builtin.recorder.audiodecoderfilter",
             Pipeline::FilterType::FILTERTYPE_ADEC);
-    ASSERT_TRUE(avAudioDecoderTest_ != nullptr);
     avAudioDecoderTest_->OnDecInputBufferAvailable(1, nullptr);
+    ASSERT_TRUE(avAudioDecoderTest_ != nullptr);
 }
 
 HWTEST_F(AvTransportAudioDecoderFilterTest, OnDecOutputBufferAvailable_001, testing::ext::TestSize.Level1)
@@ -162,8 +162,8 @@ HWTEST_F(AvTransportAudioDecoderFilterTest, OnDecOutputBufferAvailable_001, test
     std::shared_ptr<Pipeline::AudioDecoderFilter> avAudioDecoderTest_ =
         std::make_shared<Pipeline::AudioDecoderFilter>("builtin.recorder.audiodecoderfilter",
             Pipeline::FilterType::FILTERTYPE_ADEC);
-    ASSERT_TRUE(avAudioDecoderTest_ != nullptr);
     avAudioDecoderTest_->OnDecOutputBufferAvailable(1, nullptr);
+    ASSERT_TRUE(avAudioDecoderTest_ != nullptr);
 }
 
 HWTEST_F(AvTransportAudioDecoderFilterTest, DoPrepare_001, testing::ext::TestSize.Level1)
diff --git a/av_transport/av_trans_engine/filters/test/av_trans_coder_filter_test/av_trans_audio_encoder_filter_test.cpp b/av_transport/av_trans_engine/filters/test/av_trans_coder_filter_test/av_trans_audio_encoder_filter_test.cpp
index 0f39f56b61825f0642d7f1abb7d29c51fb2b3b2c..56747f7d5339790eab20c813090b9f06bf20a665 100644
--- a/av_transport/av_trans_engine/filters/test/av_trans_coder_filter_test/av_trans_audio_encoder_filter_test.cpp
+++ b/av_transport/av_trans_engine/filters/test/av_trans_coder_filter_test/av_trans_audio_encoder_filter_test.cpp
@@ -144,8 +144,8 @@ HWTEST_F(AvTransportAudioEncoderFilterTest, ProcessData_001, testing::ext::TestS
     // initial codeMem
     OH_AVBuffer *codecMem = nullptr;
     ret = avAudioEncoderTest_->ProcessData(audioData, 0, codecMem);
-    EXPECT_EQ(Status::ERROR_INVALID_OPERATION, ret);
     delete codecMem;
+    EXPECT_EQ(Status::ERROR_INVALID_OPERATION, ret);
 }
 
 HWTEST_F(AvTransportAudioEncoderFilterTest, OnEncInputBufferAvailable_001, testing::ext::TestSize.Level1)
@@ -153,8 +153,8 @@ HWTEST_F(AvTransportAudioEncoderFilterTest, OnEncInputBufferAvailable_001, testi
     std::shared_ptr<Pipeline::AudioEncoderFilter> avAudioEncoderTest_ =
         std::make_shared<Pipeline::AudioEncoderFilter>("builtin.recorder.audioencoderfilter",
             Pipeline::FilterType::FILTERTYPE_AENC);
-    ASSERT_TRUE(avAudioEncoderTest_ != nullptr);
     avAudioEncoderTest_->OnEncInputBufferAvailable(1, nullptr);
+    ASSERT_TRUE(avAudioEncoderTest_ != nullptr);
 }
 
 HWTEST_F(AvTransportAudioEncoderFilterTest, OnEncOutputBufferAvailable_001, testing::ext::TestSize.Level1)
@@ -162,8 +162,8 @@ HWTEST_F(AvTransportAudioEncoderFilterTest, OnEncOutputBufferAvailable_001, test
     std::shared_ptr<Pipeline::AudioEncoderFilter> avAudioEncoderTest_ =
         std::make_shared<Pipeline::AudioEncoderFilter>("builtin.recorder.audioencoderfilter",
             Pipeline::FilterType::FILTERTYPE_AENC);
-    ASSERT_TRUE(avAudioEncoderTest_ != nullptr);
     avAudioEncoderTest_->OnEncOutputBufferAvailable(1, nullptr);
+    ASSERT_TRUE(avAudioEncoderTest_ != nullptr);
 }
 
 HWTEST_F(AvTransportAudioEncoderFilterTest, DoPrepare_001, testing::ext::TestSize.Level1)
diff --git a/av_transport/av_trans_engine/filters/test/av_trans_input_filter_test/av_trans_bus_input_filter_test.cpp b/av_transport/av_trans_engine/filters/test/av_trans_input_filter_test/av_trans_bus_input_filter_test.cpp
index 0111ec9535346148f06e2b1100d09b4826cef6e9..897b0e64ea17d9d758153137603252702f13a08e 100644
--- a/av_transport/av_trans_engine/filters/test/av_trans_input_filter_test/av_trans_bus_input_filter_test.cpp
+++ b/av_transport/av_trans_engine/filters/test/av_trans_input_filter_test/av_trans_bus_input_filter_test.cpp
@@ -46,8 +46,8 @@ HWTEST_F(AvTransportBusInputFilterTest, Init_001, testing::ext::TestSize.Level1)
     std::shared_ptr<Pipeline::AVTransBusInputFilter> avBusInputTest_ =
         std::make_shared<Pipeline::AVTransBusInputFilter>("builtin.avtrans.softbus.input",
             Pipeline::FilterType::AUDIO_DATA_SOURCE);
-    ASSERT_TRUE(avBusInputTest_ != nullptr);
     avBusInputTest_->Init(nullptr, nullptr);
+    ASSERT_TRUE(avBusInputTest_ != nullptr);
 }
 
 HWTEST_F(AvTransportBusInputFilterTest, DoInitAfterLink_001, testing::ext::TestSize.Level1)
@@ -65,8 +65,8 @@ HWTEST_F(AvTransportBusInputFilterTest, PrepareInputBuffer_001, testing::ext::Te
     std::shared_ptr<Pipeline::AVTransBusInputFilter> avBusInputTest_ =
         std::make_shared<Pipeline::AVTransBusInputFilter>("builtin.avtrans.softbus.input",
             Pipeline::FilterType::AUDIO_DATA_SOURCE);
-    ASSERT_TRUE(avBusInputTest_ != nullptr);
     avBusInputTest_->PrepareInputBuffer();
+    ASSERT_TRUE(avBusInputTest_ != nullptr);
 }
 
 HWTEST_F(AvTransportBusInputFilterTest, ProcessAndSendBuffer_001, testing::ext::TestSize.Level1)
diff --git a/av_transport/av_trans_engine/filters/test/av_trans_output_filter_test/av_trans_audio_output_filter_test.cpp b/av_transport/av_trans_engine/filters/test/av_trans_output_filter_test/av_trans_audio_output_filter_test.cpp
index 6126364d8a0c5884e3f966c50141088943793e36..be25f336e2680764d03772819ee27b335e7f6964 100644
--- a/av_transport/av_trans_engine/filters/test/av_trans_output_filter_test/av_trans_audio_output_filter_test.cpp
+++ b/av_transport/av_trans_engine/filters/test/av_trans_output_filter_test/av_trans_audio_output_filter_test.cpp
@@ -47,6 +47,7 @@ HWTEST_F(AvTransportAudioOutputFilterTest, Init_001, testing::ext::TestSize.Leve
 {
     ASSERT_TRUE(dAudioOutputTest_ != nullptr);
     dAudioOutputTest_->Init(nullptr, nullptr);
+    ASSERT_TRUE(dAudioOutputTest_ != nullptr);
 }
 
 HWTEST_F(AvTransportAudioOutputFilterTest, DoInitAfterLink_001, testing::ext::TestSize.Level1)
@@ -60,6 +61,7 @@ HWTEST_F(AvTransportAudioOutputFilterTest, PrepareInputBuffer_001, testing::ext:
 {
     ASSERT_TRUE(dAudioOutputTest_ != nullptr);
     dAudioOutputTest_->PrepareInputBuffer();
+    EXPECT_NE(dAudioOutputTest_->outputBufQue_, nullptr);
 }
 
 HWTEST_F(AvTransportAudioOutputFilterTest, DoPrepare_001, testing::ext::TestSize.Level1)
diff --git a/av_transport/av_trans_engine/filters/test/av_trans_output_filter_test/av_trans_dsoftbus_output_filter_test.cpp b/av_transport/av_trans_engine/filters/test/av_trans_output_filter_test/av_trans_dsoftbus_output_filter_test.cpp
index 3103e65029e7fa23a05aa43d782e4bae02663feb..a2440a07ee4a62ce537b5e135c051d0c53aa82fe 100644
--- a/av_transport/av_trans_engine/filters/test/av_trans_output_filter_test/av_trans_dsoftbus_output_filter_test.cpp
+++ b/av_transport/av_trans_engine/filters/test/av_trans_output_filter_test/av_trans_dsoftbus_output_filter_test.cpp
@@ -61,6 +61,7 @@ HWTEST_F(AvTransportAudioOutputFilterTest, PrepareInputBuffer_001, testing::ext:
 {
     ASSERT_TRUE(dSoftbusOutputTest_ != nullptr);
     dSoftbusOutputTest_->PrepareInputBuffer();
+    EXPECT_NE(dSoftbusOutputTest_->outputBufQue_, nullptr);
 }
 
 HWTEST_F(AvTransportAudioOutputFilterTest, DoPrepare_001, testing::ext::TestSize.Level1)