diff --git a/services/identity_checker/src/identity_checker_impl.cpp b/services/identity_checker/src/identity_checker_impl.cpp
index 4eaa81fb042f6276e3def77b6e8114f31d4a98ca..c407dc989a01f5cbe0f1d5f06dc4d9c70ca188df 100644
--- a/services/identity_checker/src/identity_checker_impl.cpp
+++ b/services/identity_checker/src/identity_checker_impl.cpp
@@ -117,7 +117,7 @@ bool IdentityCheckerImpl::IsFocusedUIExtension(uint32_t callingTokenId, sptr<IRe
     if (displayIdByWindow != DEFAULT_DISPLAY_ID) {
         FocusChangeInfo focusInfo;
         WindowAdapter::GetFocusInfo(focusInfo, displayIdByWindow);
-        return windowId == focusInfo.windowId_;
+        return windowId == static_cast<uint32_t>(focusInfo.windowId_);
     }
 
     bool isFocused = false;
diff --git a/services/src/peruser_session.cpp b/services/src/peruser_session.cpp
index 2a7b30ec2e62c3bee93a379fb665d7d425034630..237dab045dd7afef8a7a718b97af686fd7fd601f 100644
--- a/services/src/peruser_session.cpp
+++ b/services/src/peruser_session.cpp
@@ -2123,7 +2123,7 @@ ImfCallingWindowInfo PerUserSession::GetCallingWindowInfo(const InputClientInfo
         return finalWindowInfo;
     }
     if (finalWindowId == INVALID_WINDOW_ID) {
-        finalWindowId = focusInfo.windowId_;
+        finalWindowId = static_cast<uint32_t>(focusInfo.windowId_);
     }
     return { finalWindowId, callingWindowInfo.displayId_ };
 }
diff --git a/test/fuzztest/imeenabledinfomanager_fuzzer/imeenabledinfomanager_fuzzer.cpp b/test/fuzztest/imeenabledinfomanager_fuzzer/imeenabledinfomanager_fuzzer.cpp
index 9abace6a71d92d2c7ea32fca525f032df33bc22d..3558d4332ee7b87ac3eeb44c0ef02751a2364ad9 100644
--- a/test/fuzztest/imeenabledinfomanager_fuzzer/imeenabledinfomanager_fuzzer.cpp
+++ b/test/fuzztest/imeenabledinfomanager_fuzzer/imeenabledinfomanager_fuzzer.cpp
@@ -19,6 +19,7 @@
 
 using namespace OHOS::MiscServices;
 namespace OHOS {
+const int8_t EVEN_CHECK_NUMBER = 2;
 std::string GetString(const uint8_t *data, size_t size)
 {
     if (data == nullptr || size == 0) {
@@ -122,7 +123,7 @@ void FuzzSetCurrentIme(const uint8_t *data, size_t size)
     auto userId = static_cast<int32_t>(size);
     auto fuzzedString = GetString(data, size);
     std::string imeId = fuzzedString;
-    if (size % 2 == 0) {
+    if (size % EVEN_NUMBER == 0) {
         imeId = fuzzedString + "/" + "ext";
     }
     bool isSetByUser = false;
@@ -137,7 +138,7 @@ void FuzzSetTmpIme(const uint8_t *data, size_t size)
     auto userId = static_cast<int32_t>(size);
     auto fuzzedString = GetString(data, size);
     std::string imeId = fuzzedString;
-    if (size % 2 == 0) {
+    if (size % EVEN_NUMBER == 0) {
         imeId = fuzzedString + "/" + "ext";
     }
     ImeEnabledInfoManager::GetInstance().SetTmpIme(userId, imeId);
diff --git a/test/fuzztest/inputmethodsystemability_fuzzer/inputmethodsystemability_fuzzer.cpp b/test/fuzztest/inputmethodsystemability_fuzzer/inputmethodsystemability_fuzzer.cpp
index 0fa0496a9a9a2d42c3a7d0a22d8c3f3bd9fd68a5..ae56b0d91a54d3d8a85ba7dcd575801d9a3d8c4e 100644
--- a/test/fuzztest/inputmethodsystemability_fuzzer/inputmethodsystemability_fuzzer.cpp
+++ b/test/fuzztest/inputmethodsystemability_fuzzer/inputmethodsystemability_fuzzer.cpp
@@ -141,7 +141,8 @@ void FuzzHandleOperation(const uint8_t *data, size_t size)
     DelayedSingleton<InputMethodSystemAbility>::GetInstance()->HandleWmsConnected(fuzzedInt32, fuzzedInt32);
     DelayedSingleton<InputMethodSystemAbility>::GetInstance()->HandleScbStarted(fuzzedInt32, fuzzedInt32);
     DelayedSingleton<InputMethodSystemAbility>::GetInstance()->HandleWmsDisconnected(fuzzedInt32, fuzzedInt32);
-    DelayedSingleton<InputMethodSystemAbility>::GetInstance()->NeedHideWhenSwitchInputType(fuzzedInt32, inputType, fuzzedBool);
+    DelayedSingleton<InputMethodSystemAbility>::GetInstance()->NeedHideWhenSwitchInputType(fuzzedInt32, inputType,
+        fuzzedBool);
     DelayedSingleton<InputMethodSystemAbility>::GetInstance()->GetAlternativeIme(fuzzedInt32, fuzzedString);
 }
 } // namespace OHOS
diff --git a/test/unittest/cpp_test/src/ime_proxy_test.cpp b/test/unittest/cpp_test/src/ime_proxy_test.cpp
index c5b91f4c7b8fdf78c7d6d6cbe53a6cdcf1532fab..72cfb645bcdd6e9f1acb2afcb811da06bc5b8f04 100644
--- a/test/unittest/cpp_test/src/ime_proxy_test.cpp
+++ b/test/unittest/cpp_test/src/ime_proxy_test.cpp
@@ -668,5 +668,20 @@ HWTEST_F(ImeProxyTest, DiscardTypingTextTest, TestSize.Level0)
     auto ret = InputMethodAbility::GetInstance().OnDiscardTypingText();
     EXPECT_EQ(ret, ErrorCode::NO_ERROR);
 }
+
+/**
+ * @tc.name: TestRegisterProxyIme
+ * @tc.desc: Test RegisterProxyIme
+ * @tc.type: FUNC
+ */
+HWTEST_F(ImeProxyTest, RegisterProxyImeTest, TestSize.Level0)
+{
+    IMSA_HILOGI("ImeProxyTest::TestRegisterProxyImeTest");
+    uint64_t displayId = -1;
+    auto ret = InputMethodAbilityInterface::GetInstance().RegisterProxyIme(displayId);
+    EXPECT_NE(ret, ErrorCode::NO_ERROR);
+    ret = InputMethodAbilityInterface::GetInstance().UnregisterProxyIme(displayId);
+    EXPECT_NE(ret, ErrorCode::NO_ERROR);
+}
 } // namespace MiscServices
 } // namespace OHOS
diff --git a/test/unittest/cpp_test/src/window_adapter_test.cpp b/test/unittest/cpp_test/src/window_adapter_test.cpp
index a3315abc2feeb2b63443d1d15dcf435ee8b22891..afb9f89bad2a9dff2e95bcf70533954c525d4fd1 100644
--- a/test/unittest/cpp_test/src/window_adapter_test.cpp
+++ b/test/unittest/cpp_test/src/window_adapter_test.cpp
@@ -72,5 +72,19 @@ HWTEST_F(WindowAdapterTest, WindowAdapter_GetFocusInfo, TestSize.Level0)
     WindowAdapter::GetInstance().GetFocusInfo(focusInfo);
     EXPECT_TRUE(focusInfo.displayId_ >= 0);
 }
+
+/**
+ * @tc.name: WindowAdapter_GetDisplayId
+ * @tc.desc:
+ * @tc.type: FUNC
+ * @tc.require:
+ */
+HWTEST_F(WindowAdapterTest, WindowAdapter_GetDisplayId, TestSize.Level0)
+{
+    int64_t callingPid = -1000;
+    uint64_t displayId = 0;
+    auto ret = WindowAdapter::GetInstance().GetDisplayId(callingPid, displayId);
+    EXPECT_TRUE(ret);
+}
 } // namespace MiscServices
 } // namespace OHOS