diff --git a/services/surfaceflinger/tests/unittests/CompositionTest.cpp b/services/surfaceflinger/tests/unittests/CompositionTest.cpp
index 8d2c078..c7c6b06 100644
--- a/services/surfaceflinger/tests/unittests/CompositionTest.cpp
+++ b/services/surfaceflinger/tests/unittests/CompositionTest.cpp
@@ -370,7 +370,7 @@
         EXPECT_CALL(*test->mComposer, presentOrValidateDisplay(HWC_DISPLAY, _, _, _, _)).Times(1);
 
         EXPECT_CALL(*test->mDisplaySurface,
-                    prepareFrame(compositionengine::DisplaySurface::COMPOSITION_HWC))
+                    prepareFrame(compositionengine::DisplaySurface::CompositionType::Hwc))
                 .Times(1);
     }
 
@@ -384,7 +384,7 @@
 
     static void setupRECompositionCallExpectations(CompositionTest* test) {
         EXPECT_CALL(*test->mDisplaySurface,
-                    prepareFrame(compositionengine::DisplaySurface::COMPOSITION_GPU))
+                    prepareFrame(compositionengine::DisplaySurface::CompositionType::Gpu))
                 .Times(1);
         EXPECT_CALL(*test->mDisplaySurface, getClientTargetAcquireFence())
                 .WillRepeatedly(ReturnRef(test->mClientTargetAcquireFence));
diff --git a/services/surfaceflinger/tests/unittests/FrameTimelineTest.cpp b/services/surfaceflinger/tests/unittests/FrameTimelineTest.cpp
index 9fbaece..397c619 100644
--- a/services/surfaceflinger/tests/unittests/FrameTimelineTest.cpp
+++ b/services/surfaceflinger/tests/unittests/FrameTimelineTest.cpp
@@ -169,13 +169,14 @@
 
 static const std::string sLayerNameOne = "layer1";
 static const std::string sLayerNameTwo = "layer2";
-static constexpr const uid_t sUidOne = 0;
-static constexpr pid_t sPidOne = 10;
-static constexpr pid_t sPidTwo = 20;
-static constexpr int32_t sInputEventId = 5;
-static constexpr int32_t sLayerIdOne = 1;
-static constexpr int32_t sLayerIdTwo = 2;
-static constexpr int32_t sGameMode = 0;
+
+constexpr const uid_t sUidOne = 0;
+constexpr pid_t sPidOne = 10;
+constexpr pid_t sPidTwo = 20;
+constexpr int32_t sInputEventId = 5;
+constexpr int32_t sLayerIdOne = 1;
+constexpr int32_t sLayerIdTwo = 2;
+constexpr GameMode sGameMode = GameMode::Unsupported;
 
 TEST_F(FrameTimelineTest, tokenManagerRemovesStalePredictions) {
     int64_t token1 = mTokenManager->generateTokenForPredictions({0, 0, 0});
diff --git a/services/surfaceflinger/tests/unittests/GameModeTest.cpp b/services/surfaceflinger/tests/unittests/GameModeTest.cpp
index d645942..981ca1d 100644
--- a/services/surfaceflinger/tests/unittests/GameModeTest.cpp
+++ b/services/surfaceflinger/tests/unittests/GameModeTest.cpp
@@ -91,8 +91,8 @@
     }
 
     // Mocks the behavior of applying a transaction from WMShell
-    void setGameModeMetadata(sp<Layer> layer, int gameMode) {
-        mLayerMetadata.setInt32(METADATA_GAME_MODE, gameMode);
+    void setGameModeMetadata(sp<Layer> layer, GameMode gameMode) {
+        mLayerMetadata.setInt32(METADATA_GAME_MODE, static_cast<int32_t>(gameMode));
         layer->setMetadata(mLayerMetadata);
         layer->setGameModeForTree(gameMode);
     }
@@ -109,51 +109,52 @@
     sp<BufferStateLayer> childLayer2 = createBufferStateLayer();
     rootLayer->addChild(childLayer1);
     rootLayer->addChild(childLayer2);
-    rootLayer->setGameModeForTree(/*gameMode*/ 2);
+    rootLayer->setGameModeForTree(GameMode::Performance);
 
-    EXPECT_EQ(rootLayer->getGameMode(), 2);
-    EXPECT_EQ(childLayer1->getGameMode(), 2);
-    EXPECT_EQ(childLayer2->getGameMode(), 2);
+    EXPECT_EQ(rootLayer->getGameMode(), GameMode::Performance);
+    EXPECT_EQ(childLayer1->getGameMode(), GameMode::Performance);
+    EXPECT_EQ(childLayer2->getGameMode(), GameMode::Performance);
 }
 
 TEST_F(GameModeTest, AddChildAppliesGameModeFromParent) {
     sp<BufferStateLayer> rootLayer = createBufferStateLayer();
     sp<BufferStateLayer> childLayer = createBufferStateLayer();
-    rootLayer->setGameModeForTree(/*gameMode*/ 2);
+    rootLayer->setGameModeForTree(GameMode::Performance);
     rootLayer->addChild(childLayer);
 
-    EXPECT_EQ(rootLayer->getGameMode(), 2);
-    EXPECT_EQ(childLayer->getGameMode(), 2);
+    EXPECT_EQ(rootLayer->getGameMode(), GameMode::Performance);
+    EXPECT_EQ(childLayer->getGameMode(), GameMode::Performance);
 }
 
 TEST_F(GameModeTest, RemoveChildResetsGameMode) {
     sp<BufferStateLayer> rootLayer = createBufferStateLayer();
     sp<BufferStateLayer> childLayer = createBufferStateLayer();
-    rootLayer->setGameModeForTree(/*gameMode*/ 2);
+    rootLayer->setGameModeForTree(GameMode::Performance);
     rootLayer->addChild(childLayer);
 
-    EXPECT_EQ(rootLayer->getGameMode(), 2);
-    EXPECT_EQ(childLayer->getGameMode(), 2);
+    EXPECT_EQ(rootLayer->getGameMode(), GameMode::Performance);
+    EXPECT_EQ(childLayer->getGameMode(), GameMode::Performance);
 
     rootLayer->removeChild(childLayer);
-    EXPECT_EQ(childLayer->getGameMode(), 0);
+    EXPECT_EQ(childLayer->getGameMode(), GameMode::Unsupported);
 }
 
 TEST_F(GameModeTest, ReparentingDoesNotOverrideMetadata) {
     sp<BufferStateLayer> rootLayer = createBufferStateLayer();
     sp<BufferStateLayer> childLayer1 = createBufferStateLayer();
     sp<BufferStateLayer> childLayer2 = createBufferStateLayer();
-    rootLayer->setGameModeForTree(/*gameMode*/ 1);
+    rootLayer->setGameModeForTree(GameMode::Standard);
     rootLayer->addChild(childLayer1);
 
-    setGameModeMetadata(childLayer2, /*gameMode*/ 2);
+    setGameModeMetadata(childLayer2, GameMode::Performance);
     rootLayer->addChild(childLayer2);
 
-    EXPECT_EQ(rootLayer->getGameMode(), 1);
-    EXPECT_EQ(childLayer1->getGameMode(), 1);
-    EXPECT_EQ(childLayer2->getGameMode(), 2);
+    EXPECT_EQ(rootLayer->getGameMode(), GameMode::Standard);
+    EXPECT_EQ(childLayer1->getGameMode(), GameMode::Standard);
+    EXPECT_EQ(childLayer2->getGameMode(), GameMode::Performance);
 
     rootLayer->removeChild(childLayer2);
-    EXPECT_EQ(childLayer2->getGameMode(), 2);
+    EXPECT_EQ(childLayer2->getGameMode(), GameMode::Performance);
 }
-} // namespace android
\ No newline at end of file
+
+} // namespace android
diff --git a/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp b/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp
index fc84d48..98746bc 100644
--- a/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp
+++ b/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp
@@ -21,10 +21,9 @@
 #undef LOG_TAG
 #define LOG_TAG "SchedulerUnittests"
 
+#include <ftl/enum.h>
 #include <gmock/gmock.h>
 #include <log/log.h>
-#include <thread>
-
 #include <ui/Size.h>
 
 #include "DisplayHardware/HWC2.h"
@@ -1975,7 +1974,7 @@
         layers[0].vote = vote;
         EXPECT_EQ(fps.getIntValue(),
                   refreshRateConfigs->getBestRefreshRate(layers, {}).getFps().getIntValue())
-                << "Failed for " << RefreshRateConfigs::layerVoteTypeString(vote);
+                << "Failed for " << ftl::enum_string(vote);
     };
 
     for (int fps = kMinRefreshRate; fps < kMaxRefreshRate; fps++) {
diff --git a/services/surfaceflinger/tests/unittests/TimeStatsTest.cpp b/services/surfaceflinger/tests/unittests/TimeStatsTest.cpp
index 1487a96..0ef8456 100644
--- a/services/surfaceflinger/tests/unittests/TimeStatsTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TimeStatsTest.cpp
@@ -70,9 +70,9 @@
 #define NUM_LAYERS            1
 #define NUM_LAYERS_INVALID    "INVALID"
 
-const constexpr Fps kRefreshRate0 = 61_Hz;
-const constexpr Fps kRenderRate0 = 31_Hz;
-static constexpr int32_t kGameMode = TimeStatsHelper::GameModeUnsupported;
+constexpr Fps kRefreshRate0 = 61_Hz;
+constexpr Fps kRenderRate0 = 31_Hz;
+constexpr GameMode kGameMode = GameMode::Unsupported;
 
 enum InputCommand : int32_t {
     ENABLE                 = 0,
@@ -145,14 +145,14 @@
     std::string inputCommand(InputCommand cmd, bool useProto);
 
     void setTimeStamp(TimeStamp type, int32_t id, uint64_t frameNumber, nsecs_t ts,
-                      TimeStats::SetFrameRateVote frameRateVote, int32_t gameMode);
+                      TimeStats::SetFrameRateVote, GameMode);
 
     int32_t genRandomInt32(int32_t begin, int32_t end);
 
     template <size_t N>
     void insertTimeRecord(const TimeStamp (&sequence)[N], int32_t id, uint64_t frameNumber,
                           nsecs_t ts, TimeStats::SetFrameRateVote frameRateVote = {},
-                          int32_t gameMode = kGameMode) {
+                          GameMode gameMode = kGameMode) {
         for (size_t i = 0; i < N; i++, ts += 1000000) {
             setTimeStamp(sequence[i], id, frameNumber, ts, frameRateVote, gameMode);
         }
@@ -203,7 +203,7 @@
 }
 
 void TimeStatsTest::setTimeStamp(TimeStamp type, int32_t id, uint64_t frameNumber, nsecs_t ts,
-                                 TimeStats::SetFrameRateVote frameRateVote, int32_t gameMode) {
+                                 TimeStats::SetFrameRateVote frameRateVote, GameMode gameMode) {
     switch (type) {
         case TimeStamp::POST:
             ASSERT_NO_FATAL_FAILURE(mTimeStats->setPostTime(id, frameNumber, genLayerName(id),
@@ -1168,8 +1168,7 @@
     constexpr nsecs_t APP_DEADLINE_DELTA_3MS = 3'000'000;
     EXPECT_TRUE(inputCommand(InputCommand::ENABLE, FMT_STRING).empty());
 
-    insertTimeRecord(NORMAL_SEQUENCE, LAYER_ID_0, 1, 1000000, {},
-                     TimeStatsHelper::GameModeStandard);
+    insertTimeRecord(NORMAL_SEQUENCE, LAYER_ID_0, 1, 1000000, {}, GameMode::Standard);
     for (size_t i = 0; i < LATE_ACQUIRE_FRAMES; i++) {
         mTimeStats->incrementLatchSkipped(LAYER_ID_0, TimeStats::LatchSkipReason::LateAcquire);
     }
@@ -1182,42 +1181,39 @@
                     TimeStats::SetFrameRateVote::FrameRateCompatibility::ExactOrMultiple,
             .seamlessness = TimeStats::SetFrameRateVote::Seamlessness::NotRequired,
     };
-    insertTimeRecord(NORMAL_SEQUENCE, LAYER_ID_0, 2, 2000000, frameRate60,
-                     TimeStatsHelper::GameModeStandard);
+    insertTimeRecord(NORMAL_SEQUENCE, LAYER_ID_0, 2, 2000000, frameRate60, GameMode::Standard);
 
-    mTimeStats->incrementJankyFrames(
-            {kRefreshRate0, kRenderRate0, UID_0, genLayerName(LAYER_ID_0),
-             TimeStatsHelper::GameModeStandard, JankType::SurfaceFlingerCpuDeadlineMissed,
-             DISPLAY_DEADLINE_DELTA, DISPLAY_PRESENT_JITTER, APP_DEADLINE_DELTA_3MS});
-    mTimeStats->incrementJankyFrames(
-            {kRefreshRate0, kRenderRate0, UID_0, genLayerName(LAYER_ID_0),
-             TimeStatsHelper::GameModeStandard, JankType::SurfaceFlingerGpuDeadlineMissed,
-             DISPLAY_DEADLINE_DELTA, DISPLAY_PRESENT_JITTER, APP_DEADLINE_DELTA_3MS});
     mTimeStats->incrementJankyFrames({kRefreshRate0, kRenderRate0, UID_0, genLayerName(LAYER_ID_0),
-                                      TimeStatsHelper::GameModeStandard, JankType::DisplayHAL,
+                                      GameMode::Standard, JankType::SurfaceFlingerCpuDeadlineMissed,
                                       DISPLAY_DEADLINE_DELTA, DISPLAY_PRESENT_JITTER,
                                       APP_DEADLINE_DELTA_3MS});
     mTimeStats->incrementJankyFrames({kRefreshRate0, kRenderRate0, UID_0, genLayerName(LAYER_ID_0),
-                                      TimeStatsHelper::GameModeStandard,
-                                      JankType::AppDeadlineMissed, DISPLAY_DEADLINE_DELTA,
+                                      GameMode::Standard, JankType::SurfaceFlingerGpuDeadlineMissed,
+                                      DISPLAY_DEADLINE_DELTA, DISPLAY_PRESENT_JITTER,
+                                      APP_DEADLINE_DELTA_3MS});
+    mTimeStats->incrementJankyFrames({kRefreshRate0, kRenderRate0, UID_0, genLayerName(LAYER_ID_0),
+                                      GameMode::Standard, JankType::DisplayHAL,
+                                      DISPLAY_DEADLINE_DELTA, DISPLAY_PRESENT_JITTER,
+                                      APP_DEADLINE_DELTA_3MS});
+    mTimeStats->incrementJankyFrames({kRefreshRate0, kRenderRate0, UID_0, genLayerName(LAYER_ID_0),
+                                      GameMode::Standard, JankType::AppDeadlineMissed,
+                                      DISPLAY_DEADLINE_DELTA, DISPLAY_PRESENT_JITTER,
+                                      APP_DEADLINE_DELTA_3MS});
+    mTimeStats->incrementJankyFrames({kRefreshRate0, kRenderRate0, UID_0, genLayerName(LAYER_ID_0),
+                                      GameMode::Standard, JankType::SurfaceFlingerScheduling,
+                                      DISPLAY_DEADLINE_DELTA, DISPLAY_PRESENT_JITTER,
+                                      APP_DEADLINE_DELTA_2MS});
+    mTimeStats->incrementJankyFrames({kRefreshRate0, kRenderRate0, UID_0, genLayerName(LAYER_ID_0),
+                                      GameMode::Standard, JankType::PredictionError,
+                                      DISPLAY_DEADLINE_DELTA, DISPLAY_PRESENT_JITTER,
+                                      APP_DEADLINE_DELTA_2MS});
+    mTimeStats->incrementJankyFrames(
+            {kRefreshRate0, kRenderRate0, UID_0, genLayerName(LAYER_ID_0), GameMode::Standard,
+             JankType::AppDeadlineMissed | JankType::BufferStuffing, DISPLAY_DEADLINE_DELTA,
+             APP_DEADLINE_DELTA_2MS, APP_DEADLINE_DELTA_2MS});
+    mTimeStats->incrementJankyFrames({kRefreshRate0, kRenderRate0, UID_0, genLayerName(LAYER_ID_0),
+                                      GameMode::Standard, JankType::None, DISPLAY_DEADLINE_DELTA,
                                       DISPLAY_PRESENT_JITTER, APP_DEADLINE_DELTA_3MS});
-    mTimeStats->incrementJankyFrames({kRefreshRate0, kRenderRate0, UID_0, genLayerName(LAYER_ID_0),
-                                      TimeStatsHelper::GameModeStandard,
-                                      JankType::SurfaceFlingerScheduling, DISPLAY_DEADLINE_DELTA,
-                                      DISPLAY_PRESENT_JITTER, APP_DEADLINE_DELTA_2MS});
-    mTimeStats->incrementJankyFrames({kRefreshRate0, kRenderRate0, UID_0, genLayerName(LAYER_ID_0),
-                                      TimeStatsHelper::GameModeStandard, JankType::PredictionError,
-                                      DISPLAY_DEADLINE_DELTA, DISPLAY_PRESENT_JITTER,
-                                      APP_DEADLINE_DELTA_2MS});
-    mTimeStats->incrementJankyFrames({kRefreshRate0, kRenderRate0, UID_0, genLayerName(LAYER_ID_0),
-                                      TimeStatsHelper::GameModeStandard,
-                                      JankType::AppDeadlineMissed | JankType::BufferStuffing,
-                                      DISPLAY_DEADLINE_DELTA, APP_DEADLINE_DELTA_2MS,
-                                      APP_DEADLINE_DELTA_2MS});
-    mTimeStats->incrementJankyFrames({kRefreshRate0, kRenderRate0, UID_0, genLayerName(LAYER_ID_0),
-                                      TimeStatsHelper::GameModeStandard, JankType::None,
-                                      DISPLAY_DEADLINE_DELTA, DISPLAY_PRESENT_JITTER,
-                                      APP_DEADLINE_DELTA_3MS});
 
     std::string pulledData;
     EXPECT_TRUE(mTimeStats->onPullAtom(10063 /*SURFACEFLINGER_STATS_LAYER_INFO*/, &pulledData));
@@ -1293,22 +1289,18 @@
     constexpr size_t BAD_DESIRED_PRESENT_FRAMES = 3;
     EXPECT_TRUE(inputCommand(InputCommand::ENABLE, FMT_STRING).empty());
 
-    insertTimeRecord(NORMAL_SEQUENCE, LAYER_ID_0, 1, 1000000, {},
-                     TimeStatsHelper::GameModeStandard);
+    insertTimeRecord(NORMAL_SEQUENCE, LAYER_ID_0, 1, 1000000, {}, GameMode::Standard);
     for (size_t i = 0; i < LATE_ACQUIRE_FRAMES; i++) {
         mTimeStats->incrementLatchSkipped(LAYER_ID_0, TimeStats::LatchSkipReason::LateAcquire);
     }
     for (size_t i = 0; i < BAD_DESIRED_PRESENT_FRAMES; i++) {
         mTimeStats->incrementBadDesiredPresent(LAYER_ID_0);
     }
-    insertTimeRecord(NORMAL_SEQUENCE, LAYER_ID_0, 2, 2000000, {},
-                     TimeStatsHelper::GameModeStandard);
 
-    insertTimeRecord(NORMAL_SEQUENCE, LAYER_ID_0, 3, 3000000, {},
-                     TimeStatsHelper::GameModePerformance);
-
-    insertTimeRecord(NORMAL_SEQUENCE, LAYER_ID_0, 4, 4000000, {}, TimeStatsHelper::GameModeBattery);
-    insertTimeRecord(NORMAL_SEQUENCE, LAYER_ID_0, 5, 4000000, {}, TimeStatsHelper::GameModeBattery);
+    insertTimeRecord(NORMAL_SEQUENCE, LAYER_ID_0, 2, 2000000, {}, GameMode::Standard);
+    insertTimeRecord(NORMAL_SEQUENCE, LAYER_ID_0, 3, 3000000, {}, GameMode::Performance);
+    insertTimeRecord(NORMAL_SEQUENCE, LAYER_ID_0, 4, 4000000, {}, GameMode::Battery);
+    insertTimeRecord(NORMAL_SEQUENCE, LAYER_ID_0, 5, 4000000, {}, GameMode::Battery);
 
     std::string pulledData;
     EXPECT_TRUE(mTimeStats->onPullAtom(10063 /*SURFACEFLINGER_STATS_LAYER_INFO*/, &pulledData));
diff --git a/services/surfaceflinger/tests/unittests/mock/MockTimeStats.h b/services/surfaceflinger/tests/unittests/mock/MockTimeStats.h
index 5aebd2f..0a69b56 100644
--- a/services/surfaceflinger/tests/unittests/mock/MockTimeStats.h
+++ b/services/surfaceflinger/tests/unittests/mock/MockTimeStats.h
@@ -41,19 +41,21 @@
     MOCK_METHOD2(recordFrameDuration, void(nsecs_t, nsecs_t));
     MOCK_METHOD2(recordRenderEngineDuration, void(nsecs_t, nsecs_t));
     MOCK_METHOD2(recordRenderEngineDuration, void(nsecs_t, const std::shared_ptr<FenceTime>&));
-    MOCK_METHOD6(setPostTime, void(int32_t, uint64_t, const std::string&, uid_t, nsecs_t, int32_t));
+    MOCK_METHOD(void, setPostTime,
+                (int32_t, uint64_t, const std::string&, uid_t, nsecs_t, GameMode), (override));
     MOCK_METHOD2(incrementLatchSkipped, void(int32_t layerId, LatchSkipReason reason));
     MOCK_METHOD1(incrementBadDesiredPresent, void(int32_t layerId));
     MOCK_METHOD3(setLatchTime, void(int32_t, uint64_t, nsecs_t));
     MOCK_METHOD3(setDesiredTime, void(int32_t, uint64_t, nsecs_t));
     MOCK_METHOD3(setAcquireTime, void(int32_t, uint64_t, nsecs_t));
     MOCK_METHOD3(setAcquireFence, void(int32_t, uint64_t, const std::shared_ptr<FenceTime>&));
-    MOCK_METHOD7(setPresentTime,
-                 void(int32_t, uint64_t, nsecs_t, Fps, std::optional<Fps>, SetFrameRateVote,
-                      int32_t));
-    MOCK_METHOD7(setPresentFence,
-                 void(int32_t, uint64_t, const std::shared_ptr<FenceTime>&, Fps, std::optional<Fps>,
-                      SetFrameRateVote, int32_t));
+    MOCK_METHOD(void, setPresentTime,
+                (int32_t, uint64_t, nsecs_t, Fps, std::optional<Fps>, SetFrameRateVote, GameMode),
+                (override));
+    MOCK_METHOD(void, setPresentFence,
+                (int32_t, uint64_t, const std::shared_ptr<FenceTime>&, Fps, std::optional<Fps>,
+                 SetFrameRateVote, GameMode),
+                (override));
     MOCK_METHOD1(incrementJankyFrames, void(const JankyFramesInfo&));
     MOCK_METHOD1(onDestroy, void(int32_t));
     MOCK_METHOD2(removeTimeRecord, void(int32_t, uint64_t));