diff --git a/state_manager/service/BUILD.gn b/state_manager/service/BUILD.gn
index ba546ccb3f2d44e78e41130d88182b4194b92492..b2e10333fccca8d48de5168fcd59c69f4c25d9eb 100644
--- a/state_manager/service/BUILD.gn
+++ b/state_manager/service/BUILD.gn
@@ -82,6 +82,7 @@ ohos_shared_library("displaymgrservice") {
     "window_manager:libdm_lite",
   ]
 
+  defines = []
   if (has_sensors_sensor_part) {
     external_deps += [ "sensor:sensor_interface_native" ]
     defines += [ "ENABLE_SENSOR_PART" ]
@@ -89,6 +90,9 @@ ohos_shared_library("displaymgrservice") {
   if (has_hiviewdfx_hisysevent_part) {
     external_deps += [ "hisysevent:libhisysevent" ]
   }
+  if (use_clang_coverage) {
+    defines += [ "FUZZ_COV_TEST" ]
+  }
   shlib_type = "sa"
   subsystem_name = "powermgr"
   part_name = "${displaymgr_part_name}"
diff --git a/state_manager/service/native/src/display_power_mgr_service.cpp b/state_manager/service/native/src/display_power_mgr_service.cpp
index dae2b3c993cee24588570392fa8208b5e996b286..f4c016c84d343608e999acae7b2c27cdf201d20e 100644
--- a/state_manager/service/native/src/display_power_mgr_service.cpp
+++ b/state_manager/service/native/src/display_power_mgr_service.cpp
@@ -75,7 +75,9 @@ void DisplayPowerMgrService::Init()
             DISPLAY_HILOGE(COMP_SVC, "cannot find any display id after max retry, fill with 0");
         }
     }
+#ifndef FUZZ_COV_TEST
     BrightnessManager::Get().Init(BRIGHTNESS_MAX, BRIGHTNESS_MIN);
+#endif
     for (const auto& id: displayIds) {
         DISPLAY_HILOGI(COMP_SVC, "find display, id=%{public}u", id);
         controllerMap_.emplace(id, std::make_shared<ScreenController>(id));
diff --git a/state_manager/test/fuzztest/adjustbrightness_fuzzer/BUILD.gn b/state_manager/test/fuzztest/adjustbrightness_fuzzer/BUILD.gn
index d7e1f32800ae2756bf3975cd327e1de7850dafef..655f0b74286443ebafa13eaa1c0659ed1d126093 100644
--- a/state_manager/test/fuzztest/adjustbrightness_fuzzer/BUILD.gn
+++ b/state_manager/test/fuzztest/adjustbrightness_fuzzer/BUILD.gn
@@ -79,10 +79,15 @@ ohos_fuzztest("AdjustBrightnessFuzzTest") {
     "window_manager:libdm_lite",
   ]
 
+  defines = []
   if (has_sensors_sensor_part) {
     external_deps += [ "sensor:sensor_interface_native" ]
+    defines += [ "ENABLE_SENSOR_PART" ]
   }
   if (has_hiviewdfx_hisysevent_part) {
     external_deps += [ "hisysevent:libhisysevent" ]
   }
+  if (use_clang_coverage) {
+    defines += [ "FUZZ_COV_TEST" ]
+  }
 }
diff --git a/state_manager/test/fuzztest/autoadjustbrightness_fuzzer/BUILD.gn b/state_manager/test/fuzztest/autoadjustbrightness_fuzzer/BUILD.gn
index 43d7b35abef5f6089a09637e05a7e9bd8e2cac01..3a4684770f022c90338577c64c38e72e4412962d 100644
--- a/state_manager/test/fuzztest/autoadjustbrightness_fuzzer/BUILD.gn
+++ b/state_manager/test/fuzztest/autoadjustbrightness_fuzzer/BUILD.gn
@@ -79,10 +79,15 @@ ohos_fuzztest("AutoAdjustBrightnessFuzzTest") {
     "window_manager:libdm_lite",
   ]
 
+  defines = []
   if (has_sensors_sensor_part) {
     external_deps += [ "sensor:sensor_interface_native" ]
+    defines += [ "ENABLE_SENSOR_PART" ]
   }
   if (has_hiviewdfx_hisysevent_part) {
     external_deps += [ "hisysevent:libhisysevent" ]
   }
+  if (use_clang_coverage) {
+    defines += [ "FUZZ_COV_TEST" ]
+  }
 }
diff --git a/state_manager/test/fuzztest/boostbrightness_fuzzer/BUILD.gn b/state_manager/test/fuzztest/boostbrightness_fuzzer/BUILD.gn
index d2e70ae7dbc8ea7cb9576aeaf92d6b991ef3653e..247580077fb97e36c96f818609e463e767d72d25 100644
--- a/state_manager/test/fuzztest/boostbrightness_fuzzer/BUILD.gn
+++ b/state_manager/test/fuzztest/boostbrightness_fuzzer/BUILD.gn
@@ -79,10 +79,15 @@ ohos_fuzztest("BoostBrightnessFuzzTest") {
     "window_manager:libdm_lite",
   ]
 
+  defines = []
   if (has_sensors_sensor_part) {
     external_deps += [ "sensor:sensor_interface_native" ]
+    defines += [ "ENABLE_SENSOR_PART" ]
   }
   if (has_hiviewdfx_hisysevent_part) {
     external_deps += [ "hisysevent:libhisysevent" ]
   }
+  if (use_clang_coverage) {
+    defines += [ "FUZZ_COV_TEST" ]
+  }
 }
diff --git a/state_manager/test/fuzztest/discountbrightness_fuzzer/BUILD.gn b/state_manager/test/fuzztest/discountbrightness_fuzzer/BUILD.gn
index 0bc6a6810f75f0f42fdb8906cb6238d7f0c85e4d..18f926ae764c637ab2b4d50ce2a6e755fa09732b 100644
--- a/state_manager/test/fuzztest/discountbrightness_fuzzer/BUILD.gn
+++ b/state_manager/test/fuzztest/discountbrightness_fuzzer/BUILD.gn
@@ -79,10 +79,15 @@ ohos_fuzztest("DiscountBrightnessFuzzTest") {
     "window_manager:libdm_lite",
   ]
 
+  defines = []
   if (has_sensors_sensor_part) {
     external_deps += [ "sensor:sensor_interface_native" ]
+    defines += [ "ENABLE_SENSOR_PART" ]
   }
   if (has_hiviewdfx_hisysevent_part) {
     external_deps += [ "hisysevent:libhisysevent" ]
   }
+  if (use_clang_coverage) {
+    defines += [ "FUZZ_COV_TEST" ]
+  }
 }
diff --git a/state_manager/test/fuzztest/displaystate_fuzzer/BUILD.gn b/state_manager/test/fuzztest/displaystate_fuzzer/BUILD.gn
index 44ca3ffba17da9d2b0b864c24fc50d38038f4f4f..1c72d8423d5e057bbf96aaf10cdbdb087a6c05b8 100644
--- a/state_manager/test/fuzztest/displaystate_fuzzer/BUILD.gn
+++ b/state_manager/test/fuzztest/displaystate_fuzzer/BUILD.gn
@@ -78,10 +78,15 @@ ohos_fuzztest("DisplayStateFuzzTest") {
     "window_manager:libdm_lite",
   ]
 
+  defines = []
   if (has_sensors_sensor_part) {
     external_deps += [ "sensor:sensor_interface_native" ]
+    defines += [ "ENABLE_SENSOR_PART" ]
   }
   if (has_hiviewdfx_hisysevent_part) {
     external_deps += [ "hisysevent:libhisysevent" ]
   }
+  if (use_clang_coverage) {
+    defines += [ "FUZZ_COV_TEST" ]
+  }
 }
diff --git a/state_manager/test/fuzztest/getbrightness_fuzzer/BUILD.gn b/state_manager/test/fuzztest/getbrightness_fuzzer/BUILD.gn
index 97b8db412a6d8ce63c9ab45784c75547136f26f0..4a97ecf4ae1117dcdb780a583c502460ba2ded04 100644
--- a/state_manager/test/fuzztest/getbrightness_fuzzer/BUILD.gn
+++ b/state_manager/test/fuzztest/getbrightness_fuzzer/BUILD.gn
@@ -79,10 +79,15 @@ ohos_fuzztest("GetBrightnessFuzzTest") {
     "window_manager:libdm_lite",
   ]
 
+  defines = []
   if (has_sensors_sensor_part) {
     external_deps += [ "sensor:sensor_interface_native" ]
+    defines += [ "ENABLE_SENSOR_PART" ]
   }
   if (has_hiviewdfx_hisysevent_part) {
     external_deps += [ "hisysevent:libhisysevent" ]
   }
+  if (use_clang_coverage) {
+    defines += [ "FUZZ_COV_TEST" ]
+  }
 }
diff --git a/state_manager/test/fuzztest/getdisplayid_fuzzer/BUILD.gn b/state_manager/test/fuzztest/getdisplayid_fuzzer/BUILD.gn
index 8c9ec5126eb1dbbdeebbb41ade1da7104f59ccac..f17bd67ba8dc0496bba09bb0edfbb265a9e76adc 100644
--- a/state_manager/test/fuzztest/getdisplayid_fuzzer/BUILD.gn
+++ b/state_manager/test/fuzztest/getdisplayid_fuzzer/BUILD.gn
@@ -78,10 +78,15 @@ ohos_fuzztest("GetDisplayIdFuzzTest") {
     "window_manager:libdm_lite",
   ]
 
+  defines = []
   if (has_sensors_sensor_part) {
     external_deps += [ "sensor:sensor_interface_native" ]
+    defines += [ "ENABLE_SENSOR_PART" ]
   }
   if (has_hiviewdfx_hisysevent_part) {
     external_deps += [ "hisysevent:libhisysevent" ]
   }
+  if (use_clang_coverage) {
+    defines += [ "FUZZ_COV_TEST" ]
+  }
 }
diff --git a/state_manager/test/fuzztest/overridebrightness_fuzzer/BUILD.gn b/state_manager/test/fuzztest/overridebrightness_fuzzer/BUILD.gn
index 046d76f99ec1072aafde8e8c8d7010d74715a91d..4d6b7673e8f0ca44c95aa49c5364e5ea14881b78 100644
--- a/state_manager/test/fuzztest/overridebrightness_fuzzer/BUILD.gn
+++ b/state_manager/test/fuzztest/overridebrightness_fuzzer/BUILD.gn
@@ -79,10 +79,15 @@ ohos_fuzztest("OverrideBrightnessFuzzTest") {
     "window_manager:libdm_lite",
   ]
 
+  defines = []
   if (has_sensors_sensor_part) {
     external_deps += [ "sensor:sensor_interface_native" ]
+    defines += [ "ENABLE_SENSOR_PART" ]
   }
   if (has_hiviewdfx_hisysevent_part) {
     external_deps += [ "hisysevent:libhisysevent" ]
   }
+  if (use_clang_coverage) {
+    defines += [ "FUZZ_COV_TEST" ]
+  }
 }
diff --git a/state_manager/test/fuzztest/overridedisplayoffdelay_fuzzer/BUILD.gn b/state_manager/test/fuzztest/overridedisplayoffdelay_fuzzer/BUILD.gn
index 5c561a60e1ce0ad0dc82a9a78a1ffbd1a7bc51c6..e069cde1dc16a6e9a4118d76da866c272accaa21 100644
--- a/state_manager/test/fuzztest/overridedisplayoffdelay_fuzzer/BUILD.gn
+++ b/state_manager/test/fuzztest/overridedisplayoffdelay_fuzzer/BUILD.gn
@@ -79,10 +79,15 @@ ohos_fuzztest("OverrideDisplayOffDelayFuzzTest") {
     "window_manager:libdm_lite",
   ]
 
+  defines = []
   if (has_sensors_sensor_part) {
     external_deps += [ "sensor:sensor_interface_native" ]
+    defines += [ "ENABLE_SENSOR_PART" ]
   }
   if (has_hiviewdfx_hisysevent_part) {
     external_deps += [ "hisysevent:libhisysevent" ]
   }
+  if (use_clang_coverage) {
+    defines += [ "FUZZ_COV_TEST" ]
+  }
 }
diff --git a/state_manager/test/fuzztest/registercallback_fuzzer/BUILD.gn b/state_manager/test/fuzztest/registercallback_fuzzer/BUILD.gn
index 24b9ddd7e4fef1f61fc63b5385187fc90d4ea33d..c2e7fb84409ef830145e9f20c3a08423639d11e8 100644
--- a/state_manager/test/fuzztest/registercallback_fuzzer/BUILD.gn
+++ b/state_manager/test/fuzztest/registercallback_fuzzer/BUILD.gn
@@ -79,10 +79,15 @@ ohos_fuzztest("RegisterCallbackFuzzTest") {
     "window_manager:libdm_lite",
   ]
 
+  defines = []
   if (has_sensors_sensor_part) {
     external_deps += [ "sensor:sensor_interface_native" ]
+    defines += [ "ENABLE_SENSOR_PART" ]
   }
   if (has_hiviewdfx_hisysevent_part) {
     external_deps += [ "hisysevent:libhisysevent" ]
   }
+  if (use_clang_coverage) {
+    defines += [ "FUZZ_COV_TEST" ]
+  }
 }
diff --git a/state_manager/test/fuzztest/setbrightness_fuzzer/BUILD.gn b/state_manager/test/fuzztest/setbrightness_fuzzer/BUILD.gn
index 7caaf27759a0c14262fd80fdc71fdc8fe43e08a3..d7273e1e5d0092ef6fb7be7ae516a36c00aac13b 100644
--- a/state_manager/test/fuzztest/setbrightness_fuzzer/BUILD.gn
+++ b/state_manager/test/fuzztest/setbrightness_fuzzer/BUILD.gn
@@ -79,10 +79,15 @@ ohos_fuzztest("SetBrightnessFuzzTest") {
     "window_manager:libdm_lite",
   ]
 
+  defines = []
   if (has_sensors_sensor_part) {
     external_deps += [ "sensor:sensor_interface_native" ]
+    defines += [ "ENABLE_SENSOR_PART" ]
   }
   if (has_hiviewdfx_hisysevent_part) {
     external_deps += [ "hisysevent:libhisysevent" ]
   }
+  if (use_clang_coverage) {
+    defines += [ "FUZZ_COV_TEST" ]
+  }
 }
diff --git a/state_manager/test/fuzztest/setcoordinated_fuzzer/BUILD.gn b/state_manager/test/fuzztest/setcoordinated_fuzzer/BUILD.gn
index 1e57a5906bbd1af166c70c3bfdf435cce8be46e4..963d95606d88152f504c3d4ba925a61fac3bd71f 100644
--- a/state_manager/test/fuzztest/setcoordinated_fuzzer/BUILD.gn
+++ b/state_manager/test/fuzztest/setcoordinated_fuzzer/BUILD.gn
@@ -79,10 +79,15 @@ ohos_fuzztest("SetCoordinatedFuzzTest") {
     "window_manager:libdm_lite",
   ]
 
+  defines = []
   if (has_sensors_sensor_part) {
     external_deps += [ "sensor:sensor_interface_native" ]
+    defines += [ "ENABLE_SENSOR_PART" ]
   }
   if (has_hiviewdfx_hisysevent_part) {
     external_deps += [ "hisysevent:libhisysevent" ]
   }
+  if (use_clang_coverage) {
+    defines += [ "FUZZ_COV_TEST" ]
+  }
 }
diff --git a/state_manager/test/fuzztest/setlightbrightnessthreshold_fuzzer/BUILD.gn b/state_manager/test/fuzztest/setlightbrightnessthreshold_fuzzer/BUILD.gn
index c87dfce16498ff1f07f9fd985eb6d32a377a42ec..4200b33b524605069f7028d607a391d13b87a7d1 100644
--- a/state_manager/test/fuzztest/setlightbrightnessthreshold_fuzzer/BUILD.gn
+++ b/state_manager/test/fuzztest/setlightbrightnessthreshold_fuzzer/BUILD.gn
@@ -79,10 +79,15 @@ ohos_fuzztest("SetLightBrightnessThresholdFuzzTest") {
     "window_manager:libdm_lite",
   ]
 
+  defines = []
   if (has_sensors_sensor_part) {
     external_deps += [ "sensor:sensor_interface_native" ]
+    defines += [ "ENABLE_SENSOR_PART" ]
   }
   if (has_hiviewdfx_hisysevent_part) {
     external_deps += [ "hisysevent:libhisysevent" ]
   }
+  if (use_clang_coverage) {
+    defines += [ "FUZZ_COV_TEST" ]
+  }
 }
diff --git a/state_manager/test/fuzztest/setmaxbrightness_fuzzer/BUILD.gn b/state_manager/test/fuzztest/setmaxbrightness_fuzzer/BUILD.gn
index 164063cc99929b5fec34306ddc43c83fbf87e01b..a4a735e93e48ed84cbd0efce8d5b944b618bab55 100644
--- a/state_manager/test/fuzztest/setmaxbrightness_fuzzer/BUILD.gn
+++ b/state_manager/test/fuzztest/setmaxbrightness_fuzzer/BUILD.gn
@@ -79,10 +79,15 @@ ohos_fuzztest("SetMaxBrightnessFuzzTest") {
     "window_manager:libdm_lite",
   ]
 
+  defines = []
   if (has_sensors_sensor_part) {
     external_deps += [ "sensor:sensor_interface_native" ]
+    defines += [ "ENABLE_SENSOR_PART" ]
   }
   if (has_hiviewdfx_hisysevent_part) {
     external_deps += [ "hisysevent:libhisysevent" ]
   }
+  if (use_clang_coverage) {
+    defines += [ "FUZZ_COV_TEST" ]
+  }
 }