diff --git a/services/hdfaudioclient/test/unittest/audio_adapter_internal/audio_adapter_internal_test.cpp b/services/hdfaudioclient/test/unittest/audio_adapter_internal/audio_adapter_internal_test.cpp
index ff8433108b2c570ec7ab65c7265a06ef8ce2336d..943c03b3c9c7669094a47bb139434ea653719392 100644
--- a/services/hdfaudioclient/test/unittest/audio_adapter_internal/audio_adapter_internal_test.cpp
+++ b/services/hdfaudioclient/test/unittest/audio_adapter_internal/audio_adapter_internal_test.cpp
@@ -168,29 +168,6 @@ HWTEST_F(AudioAdapterTest, CreateCaptureInternal_001, TestSize.Level1)
     EXPECT_EQ(ERR_DH_AUDIO_HDI_INVALID_PARAM, ret);
 }
 
-/**
-* @tc.name: CreateCaptureInternal
-* @tc.desc: Verify the abnormal branch of the CreateCaptureInternal, when param is null.
-* @tc.type: FUNC
-* @tc.require: AR000H0E6H
-*/
-HWTEST_F(AudioAdapterTest, CreateCaptureInternal_002, TestSize.Level1)
-{
-    const struct ::AudioDeviceDescriptor *desc = new ::AudioDeviceDescriptor;
-    const struct ::AudioSampleAttributes *attrs = new ::AudioSampleAttributes;
-    auto adapterContext1 = std::make_unique<AudioAdapterContext>();
-    struct AudioCapture *capture = new AudioCapture;
-    int32_t ret = adapterContext1->instance_.CreateCapture(&adapterContext1->instance_, desc, attrs, &capture);
-    EXPECT_EQ(ERR_DH_AUDIO_HDI_NULLPTR, ret);
-    auto adapterContext = std::make_unique<AudioAdapterContext>();
-    adapterContext->proxy_ = new MockIAudioAdapter();
-    adapterContext->adapterName_ = "adapterName";
-    EXPECT_EQ(DH_SUCCESS, adapterContext->instance_.CreateCapture(&adapterContext->instance_, desc, attrs, &capture));
-    delete desc;
-    delete attrs;
-    delete capture;
-}
-
 /**
 * @tc.name: DestroyCaptureInternal
 * @tc.desc: Verify the abnormal branch of the DestroyCaptureInternal, when param is null.
diff --git a/services/hdfaudioclient/test/unittest/audio_capture_internal/audio_capture_internal_test.cpp b/services/hdfaudioclient/test/unittest/audio_capture_internal/audio_capture_internal_test.cpp
index 4c4680c478dc80781fe44de87ab0d127d538a2d5..636ebbc2b0bb2ae2453ccdbd5e92d16bda16aa07 100644
--- a/services/hdfaudioclient/test/unittest/audio_capture_internal/audio_capture_internal_test.cpp
+++ b/services/hdfaudioclient/test/unittest/audio_capture_internal/audio_capture_internal_test.cpp
@@ -58,24 +58,6 @@ HWTEST_F(AudioCaptureTest, GetCapturePositionInternal_001, TestSize.Level1)
     EXPECT_EQ(ERR_DH_AUDIO_HDI_INVALID_PARAM, ret);
 }
 
-/**
-* @tc.name: GetCapturePositionInternal
-* @tc.desc: Verify the abnormal branch of the GetCapturePositionInternal, when param is null.
-* @tc.type: FUNC
-* @tc.require: AR000H0E6H
-*/
-HWTEST_F(AudioCaptureTest, GetCapturePositionInternal_002, TestSize.Level1)
-{
-    struct AudioCaptureContext captureContext;
-    struct AudioCapture *capture = new AudioCapture;
-    uint64_t *frames = new uint64_t;
-    struct ::AudioTimeStamp *time = new ::AudioTimeStamp;
-    int32_t ret = captureContext.instance_.GetCapturePosition(capture, frames, time);
-    delete capture;
-    delete time;
-    EXPECT_EQ(ERR_DH_AUDIO_HDI_NULLPTR, ret);
-}
-
 /**
 * @tc.name: CaptureFrameInternal
 * @tc.desc: Verify the abnormal branch of the CaptureFrameInternal, when param is null.
@@ -92,25 +74,5 @@ HWTEST_F(AudioCaptureTest, CaptureFrameInternal_001, TestSize.Level1)
     int32_t ret = captureContext.instance_.CaptureFrame(capture, frame, requestBytes, replyBytes);
     EXPECT_EQ(ERR_DH_AUDIO_HDI_INVALID_PARAM, ret);
 }
-
-/**
-* @tc.name: CaptureFrameInternal
-* @tc.desc: Verify the abnormal branch of the CaptureFrameInternal, when param is null.
-* @tc.type: FUNC
-* @tc.require: AR000H0E6H
-*/
-HWTEST_F(AudioCaptureTest, CaptureFrameInternal_002, TestSize.Level1)
-{
-    struct AudioCaptureContext captureContext;
-    struct AudioCapture *capture = new AudioCapture;
-    char p = 'c';
-    void *frame = &p;
-    uint64_t requestBytes = 1;
-    uint64_t *replyBytes = new uint64_t;
-    int32_t ret = captureContext.instance_.CaptureFrame(capture, frame, requestBytes, replyBytes);
-    delete capture;
-    delete replyBytes;
-    EXPECT_EQ(ERR_DH_AUDIO_HDI_NULLPTR, ret);
-}
 } // DistributedHardware
 } // OHOS
\ No newline at end of file
diff --git a/services/hdfaudioclient/test/unittest/audio_render_internal/audio_render_internal_test.cpp b/services/hdfaudioclient/test/unittest/audio_render_internal/audio_render_internal_test.cpp
index 55d84d53e6603d9b4dc79e75288aa455296853fe..648f3f1511dce697d92f49ce845b855a33e764e0 100644
--- a/services/hdfaudioclient/test/unittest/audio_render_internal/audio_render_internal_test.cpp
+++ b/services/hdfaudioclient/test/unittest/audio_render_internal/audio_render_internal_test.cpp
@@ -57,23 +57,6 @@ HWTEST_F(AudioRenderTest, GetLatencyInternal_001, TestSize.Level1)
     EXPECT_EQ(ERR_DH_AUDIO_HDI_INVALID_PARAM, ret);
 }
 
-/**
-* @tc.name: GetLatencyInternal
-* @tc.desc: Verify the abnormal branch of the GetLatencyInternal, when param is null.
-* @tc.type: FUNC
-* @tc.require: AR000H0E6H
-*/
-HWTEST_F(AudioRenderTest, GetLatencyInternal_002, TestSize.Level1)
-{
-    struct AudioRenderContext renderContext;
-    struct AudioRender *render = new AudioRender;
-    uint32_t *ms = new uint32_t;
-    int32_t ret = renderContext.instance_.GetLatency(render, ms);
-    delete render;
-    delete ms;
-    EXPECT_EQ(ERR_DH_AUDIO_HDI_NULLPTR, ret);
-}
-
 /**
 * @tc.name: RenderFrameInternal
 * @tc.desc: Verify the abnormal branch of the RenderFrameInternal, when param is null.