diff --git a/engine/src/flutter/shell/platform/windows/flutter_windows_unittests.cc b/engine/src/flutter/shell/platform/windows/flutter_windows_unittests.cc
index e0b87dd7812..52676d3fd7f 100644
--- a/engine/src/flutter/shell/platform/windows/flutter_windows_unittests.cc
+++ b/engine/src/flutter/shell/platform/windows/flutter_windows_unittests.cc
@@ -9,6 +9,7 @@
 #include "gtest/gtest.h"
 
 namespace flutter {
+namespace testing {
 
 TEST(FlutterWindowsTest, GetTextureRegistrar) {
   FlutterDesktopEngineProperties properties;
@@ -22,4 +23,5 @@ TEST(FlutterWindowsTest, GetTextureRegistrar) {
   FlutterDesktopEngineDestroy(engine);
 }
 
+}  // namespace testing
 }  // namespace flutter
diff --git a/engine/src/flutter/shell/platform/windows/keyboard_key_embedder_handler_unittests.cc b/engine/src/flutter/shell/platform/windows/keyboard_key_embedder_handler_unittests.cc
index aee316a4e16..3c526d9ba65 100644
--- a/engine/src/flutter/shell/platform/windows/keyboard_key_embedder_handler_unittests.cc
+++ b/engine/src/flutter/shell/platform/windows/keyboard_key_embedder_handler_unittests.cc
@@ -14,6 +14,7 @@
 #include "gtest/gtest.h"
 
 namespace flutter {
+namespace testing {
 
 namespace {
 
@@ -71,11 +72,6 @@ UINT DefaultMapVkToScan(UINT virtual_key, bool extended) {
                        extended ? MAPVK_VK_TO_VSC_EX : MAPVK_VK_TO_VSC);
 }
 
-}  // namespace
-
-namespace testing {
-
-namespace {
 constexpr uint64_t kScanCodeKeyA = 0x1e;
 constexpr uint64_t kScanCodeAltLeft = 0x38;
 constexpr uint64_t kScanCodeNumpad1 = 0x4f;
@@ -86,9 +82,10 @@ constexpr uint64_t kScanCodeShiftRight = 0x36;
 
 constexpr uint64_t kVirtualKeyA = 0x41;
 
-using namespace ::flutter::testing::keycodes;
 }  // namespace
 
+using namespace ::flutter::testing::keycodes;
+
 TEST(KeyboardKeyEmbedderHandlerTest, ConvertChar32ToUtf8) {
   std::string result;