diff --git a/services/audiomanager/test/unittest/managersink/src/daudio_sink_dev_test.cpp b/services/audiomanager/test/unittest/managersink/src/daudio_sink_dev_test.cpp
index 186c96a640bf7a823d0be787fe4a44bb0eeee075..7f920640e99b7ec8b5ba9f25b564838f87d330cc 100644
--- a/services/audiomanager/test/unittest/managersink/src/daudio_sink_dev_test.cpp
+++ b/services/audiomanager/test/unittest/managersink/src/daudio_sink_dev_test.cpp
@@ -46,16 +46,16 @@ void DAudioSinkDevTest::TearDown()
  */
 HWTEST_F(DAudioSinkDevTest, InitAVTransEngines_001, TestSize.Level1)
 {
-    IAVEngineProvider *senderPtr = nullptr;
-    IAVEngineProvider *receiverPtr = nullptr;
+    std::shared_ptr<IAVEngineProvider> senderPtr = std::make_shared<IAVEngineProvider>();
+    std::shared_ptr<IAVEngineProvider> receiverPtr = std::make_shared<IAVEngineProvider>();
     ChannelState type = ChannelState::UNKNOWN;
     sinkDev_->engineFlag_ = true;
 
-    EXPECT_EQ(ERR_DH_AUDIO_FAILED, sinkDev_->InitAVTransEngines(type, receiverPtr));
+    EXPECT_EQ(ERR_DH_AUDIO_FAILED, sinkDev_->InitAVTransEngines(type, receiverPtr.get()));
     type = ChannelState::MIC_CONTROL_OPENED;
-    EXPECT_EQ(DH_SUCCESS, sinkDev_->InitAVTransEngines(type, senderPtr));
+    EXPECT_EQ(DH_SUCCESS, sinkDev_->InitAVTransEngines(type, senderPtr.get()));
     type = ChannelState::SPK_CONTROL_OPENED;
-    EXPECT_EQ(DH_SUCCESS, sinkDev_->InitAVTransEngines(type, receiverPtr));
+    EXPECT_EQ(DH_SUCCESS, sinkDev_->InitAVTransEngines(type, receiverPtr.get()));
 }
 
 /**
diff --git a/services/audiomanager/test/unittest/managersink/src/daudio_sink_manager_test.cpp b/services/audiomanager/test/unittest/managersink/src/daudio_sink_manager_test.cpp
index 1d42fde21ba37a198986a70360fc0c36f8c7ca4a..26b1b48d0d5f37f2862e85494a4ed424f746ac5f 100644
--- a/services/audiomanager/test/unittest/managersink/src/daudio_sink_manager_test.cpp
+++ b/services/audiomanager/test/unittest/managersink/src/daudio_sink_manager_test.cpp
@@ -54,10 +54,18 @@ HWTEST_F(DAudioSinkManagerTest, CreateAudioDevice_001, TestSize.Level1)
     std::string devId = "devId";
     EXPECT_EQ(DH_SUCCESS, daudioSinkManager.CreateAudioDevice(devId));
     daudioSinkManager.engineFlag_ = true;
+    daudioSinkManager.channelState_ = ChannelState::SPK_CONTROL_OPENED;
+    daudioSinkManager.rcvProviderPtr_ = std::make_shared<IAVEngineProvider>().get();
+    EXPECT_EQ(DH_SUCCESS, daudioSinkManager.CreateAudioDevice(devId));
+    daudioSinkManager.channelState_ = ChannelState::MIC_CONTROL_OPENED;
+    daudioSinkManager.sendProviderPtr_ = std::make_shared<IAVEngineProvider>().get();
     EXPECT_EQ(DH_SUCCESS, daudioSinkManager.CreateAudioDevice(devId));
     auto dev = std::make_shared<DAudioSinkDev>(devId);
     daudioSinkManager.audioDevMap_.emplace(devId, dev);
     EXPECT_EQ(DH_SUCCESS, daudioSinkManager.CreateAudioDevice(devId));
+    daudioSinkManager.channelState_ = ChannelState::MIC_CONTROL_OPENED;
+    daudioSinkManager.sendProviderPtr_ = nullptr;
+    EXPECT_EQ(ERR_DH_AUDIO_FAILED, daudioSinkManager.CreateAudioDevice(devId));
     daudioSinkManager.ClearAudioDev(devId);
     daudioSinkManager.OnSinkDevReleased(devId);
 }
diff --git a/services/audiotransport/test/unittest/receiverengine/src/av_receiver_engine_transport_test.cpp b/services/audiotransport/test/unittest/receiverengine/src/av_receiver_engine_transport_test.cpp
index 2709b36f91deccc2df20d553e58627020c7452cc..0bd6f1611229e3ee74815ecd744dd3b8038a2d89 100644
--- a/services/audiotransport/test/unittest/receiverengine/src/av_receiver_engine_transport_test.cpp
+++ b/services/audiotransport/test/unittest/receiverengine/src/av_receiver_engine_transport_test.cpp
@@ -101,7 +101,7 @@ HWTEST_F(AVReceiverEngineTransportTest, Start_001, TestSize.Level1)
 }
 
 /**
- * @tc.name: Start_001
+ * @tc.name: Pause_001
  * @tc.desc: Verify the Pause function.
  * @tc.type: FUNC
  * @tc.require: AR000HTAPM
@@ -112,6 +112,25 @@ HWTEST_F(AVReceiverEngineTransportTest, Pause_001, TestSize.Level1)
     AudioParam remoteParam;
     size_t bufLen = 4096;
     std::shared_ptr<AudioData> audioData = std::make_shared<AudioData>(bufLen);
+    EXPECT_EQ(ERR_DH_AUDIO_NULLPTR, receiverTrans_->Restart(localParam, remoteParam));
+    EXPECT_EQ(ERR_DH_AUDIO_NULLPTR, receiverTrans_->Pause());
+    EXPECT_EQ(DH_SUCCESS, receiverTrans_->FeedAudioData(audioData));
+}
+
+/**
+ * @tc.name: Pause_002
+ * @tc.desc: Verify the Pause function.
+ * @tc.type: FUNC
+ * @tc.require: AR000HTAPM
+ */
+HWTEST_F(AVReceiverEngineTransportTest, Pause_002, TestSize.Level1)
+{
+    AudioParam localParam;
+    AudioParam remoteParam;
+    size_t bufLen = 4096;
+    std::shared_ptr<AudioData> audioData = std::make_shared<AudioData>(bufLen);
+    receiverTrans_->receiverAdapter_ = std::make_shared<AVTransReceiverAdapter>();
+    receiverTrans_->receiverAdapter_->receiverEngine_ = std::make_shared<MockIAVReceiverEngine>();
     EXPECT_EQ(DH_SUCCESS, receiverTrans_->Restart(localParam, remoteParam));
     EXPECT_EQ(DH_SUCCESS, receiverTrans_->Pause());
     EXPECT_EQ(DH_SUCCESS, receiverTrans_->FeedAudioData(audioData));