diff --git a/services/native/test/unittest/src/coordination_softbus_adapter_test.cpp b/services/native/test/unittest/src/coordination_softbus_adapter_test.cpp
index 325b4959a..33938acda 100644
--- a/services/native/test/unittest/src/coordination_softbus_adapter_test.cpp
+++ b/services/native/test/unittest/src/coordination_softbus_adapter_test.cpp
@@ -74,7 +74,7 @@ void CoordinationSoftbusAdapterTest::TearDown() {}
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest001, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     int32_t ret = g_adapter->StartRemoteCoordination(LOCAL_NETWORKID, REMOTE_NETWORKID, false);
     EXPECT_TRUE(ret == RET_ERR);
 }
@@ -87,7 +87,7 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest001, Test
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest002, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     g_adapter->sessionDevs_[REMOTE_NETWORKID] = 1;
     g_sendable = false;
     int32_t ret = g_adapter->StartRemoteCoordination(LOCAL_NETWORKID, REMOTE_NETWORKID, false);
@@ -106,7 +106,7 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest002, Test
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest003, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     int32_t ret = g_adapter->StartRemoteCoordinationResult(REMOTE_NETWORKID, true, REMOTE_NETWORKID, 0, 0);
     EXPECT_TRUE(ret == RET_ERR);
 }
@@ -119,7 +119,7 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest003, Test
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest004, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     g_adapter->sessionDevs_[REMOTE_NETWORKID] = 1;
     g_sendable = false;
     int32_t ret = g_adapter->StartRemoteCoordinationResult(REMOTE_NETWORKID, true, REMOTE_NETWORKID, 0, 0);
@@ -138,7 +138,7 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest004, Test
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest005, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     int32_t ret = g_adapter->StopRemoteCoordination(REMOTE_NETWORKID, true);
     EXPECT_TRUE(ret == RET_ERR);
 }
@@ -151,7 +151,7 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest005, Test
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest006, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     g_adapter->sessionDevs_[REMOTE_NETWORKID] = 1;
     g_sendable = false;
     int32_t ret = g_adapter->StopRemoteCoordination(REMOTE_NETWORKID, true);
@@ -170,7 +170,7 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest006, Test
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest007, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     int32_t ret = g_adapter->StopRemoteCoordinationResult(REMOTE_NETWORKID, true);
     EXPECT_TRUE(ret == RET_ERR);
 }
@@ -183,7 +183,7 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest007, Test
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest008, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     g_adapter->sessionDevs_[REMOTE_NETWORKID] = 1;
     g_sendable = false;
     int32_t ret = g_adapter->StopRemoteCoordinationResult(REMOTE_NETWORKID, true);
@@ -202,7 +202,7 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest008, Test
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest009, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     int32_t ret = g_adapter->StartCoordinationOtherResult(ORIGIN_NETWORKID, REMOTE_NETWORKID);
     EXPECT_TRUE(ret == RET_ERR);
 }
@@ -215,7 +215,7 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest009, Test
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest010, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     g_adapter->sessionDevs_[ORIGIN_NETWORKID] = 1;
     g_sendable = false;
     int32_t ret = g_adapter->StartCoordinationOtherResult(ORIGIN_NETWORKID, REMOTE_NETWORKID);
@@ -234,7 +234,7 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest010, Test
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest011, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     int32_t ret = g_adapter->NotifyFilterAdded(REMOTE_NETWORKID);
     EXPECT_TRUE(ret == RET_ERR);
 }
@@ -247,7 +247,7 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest011, Test
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest012, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     g_adapter->sessionDevs_[REMOTE_NETWORKID] = 1;
     g_sendable = false;
     int32_t ret = g_adapter->NotifyFilterAdded(REMOTE_NETWORKID);
@@ -266,7 +266,7 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest012, Test
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest013, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     g_adapter->sessionDevs_[REMOTE_NETWORKID] = SESSION_ID;
     int32_t ret = g_adapter->OpenInputSoftbus(REMOTE_NETWORKID);
     EXPECT_EQ(ret, RET_OK);
@@ -282,7 +282,7 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest013, Test
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest014, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     g_init = false;
     int32_t ret = g_adapter->OpenInputSoftbus(REMOTE_NETWORKID);
     EXPECT_EQ(ret, RET_ERR);
@@ -297,7 +297,7 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest014, Test
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest015, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     g_init = true;
     int32_t ret = g_adapter->OpenInputSoftbus(REMOTE_NETWORKID);
     EXPECT_EQ(ret, RET_ERR);
@@ -312,7 +312,7 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest015, Test
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest016, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     g_init = true;
     g_cond = false;
     int32_t ret = g_adapter->OpenInputSoftbus(REMOTE_NETWORKID);
@@ -328,7 +328,7 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest016, Test
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest017, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     int32_t ret = g_adapter->OnSessionOpened(SESSION_ID, RET_ERR);
     EXPECT_EQ(ret, RET_OK);
     g_adapter->OnSessionClosed(SESSION_ID);
@@ -342,7 +342,7 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest017, Test
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest018, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     int32_t ret = g_adapter->OnSessionOpened(SESSION_ID, RET_OK);
     EXPECT_EQ(ret, RET_OK);
     g_adapter->OnSessionClosed(SESSION_ID);
@@ -356,7 +356,7 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest018, Test
 HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest019, TestSize.Level0)
 {
     CALL_TEST_DEBUG;
-    ASSERT_TRUE(g_adapter != nullptr);
+    ASSERT_NE(g_adapter, nullptr);
     std::string data = "TestSendData";
     g_adapter->sessionDevs_[DEVICE_ID] = SESSION_ID;
     int32_t ret = g_adapter->SendData(DEVICE_ID, CoordinationSoftbusAdapter::MIN_ID, const_cast<char *>(data.c_str()),
@@ -364,6 +364,38 @@ HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest019, Test
     EXPECT_EQ(ret, RET_ERR);
     g_adapter->sessionDevs_.clear();
 }
+
+/**
+ * @tc.name: CoordinationSoftbusAdapterTest020
+ * @tc.desc: Test func named NotifyUnchainedResult, sessionDevs_ is null
+ * @tc.type: FUNC
+ */
+HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest020, TestSize.Level0)
+{
+    CALL_TEST_DEBUG;
+    ASSERT_NE(g_adapter, nullptr);
+    int32_t ret = g_adapter->NotifyUnchainedResult(LOCAL_NETWORKID, REMOTE_NETWORKID, true);
+    EXPECT_TRUE(ret == RET_ERR);
+}
+
+/**
+ * @tc.name: CoordinationSoftbusAdapterTest021
+ * @tc.desc: Test func named NotifyUnchainedResult, sessionDevs_ is not null, sendMsg is err or ok
+ * @tc.type: FUNC
+ */
+HWTEST_F(CoordinationSoftbusAdapterTest, CoordinationSoftbusAdapterTest021, TestSize.Level0)
+{
+    CALL_TEST_DEBUG;
+    ASSERT_NE(g_adapter, nullptr);
+    g_adapter->sessionDevs_[REMOTE_NETWORKID] = 1;
+    g_sendable = false;
+    int32_t ret = g_adapter->NotifyUnchainedResult(LOCAL_NETWORKID, REMOTE_NETWORKID, true);
+    EXPECT_TRUE(ret == RET_ERR);
+    g_sendable = true;
+    ret = g_adapter->NotifyUnchainedResult(LOCAL_NETWORKID, REMOTE_NETWORKID, true);
+    EXPECT_TRUE(ret == RET_OK);
+    g_adapter->sessionDevs_.clear();
+}
 } // namespace DeviceStatus
 } // namespace Msdp
 } // namespace OHOS
\ No newline at end of file