diff --git a/services/surfaceflinger/tests/unittests/Android.bp b/services/surfaceflinger/tests/unittests/Android.bp
index 48f18b9..1db5e61 100644
--- a/services/surfaceflinger/tests/unittests/Android.bp
+++ b/services/surfaceflinger/tests/unittests/Android.bp
@@ -80,6 +80,7 @@
         "FpsReporterTest.cpp",
         "FpsTest.cpp",
         "FramebufferSurfaceTest.cpp",
+        "FrameRateOverrideMappingsTest.cpp",
         "FrameTimelineTest.cpp",
         "GameModeTest.cpp",
         "HWComposerTest.cpp",
diff --git a/services/surfaceflinger/tests/unittests/FrameRateOverrideMappingsTest.cpp b/services/surfaceflinger/tests/unittests/FrameRateOverrideMappingsTest.cpp
new file mode 100644
index 0000000..a581c7a
--- /dev/null
+++ b/services/surfaceflinger/tests/unittests/FrameRateOverrideMappingsTest.cpp
@@ -0,0 +1,185 @@
+/*
+ * Copyright 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#undef LOG_TAG
+#define LOG_TAG "FrameRateOverrideMappingsTest"
+
+#include <gtest/gtest.h>
+#include <unordered_map>
+
+#include "Scheduler/FrameRateOverrideMappings.h"
+
+namespace android::scheduler {
+
+using FrameRateOverride = DisplayEventReceiver::Event::FrameRateOverride;
+using UidToFrameRateOverride = std::map<uid_t, Fps>;
+
+class FrameRateOverrideMappingsTest : public testing::Test {
+protected:
+    FrameRateOverrideMappings mFrameRateOverrideMappings;
+    UidToFrameRateOverride mFrameRateOverrideByContent;
+};
+
+namespace {
+TEST_F(FrameRateOverrideMappingsTest, testUpdateFrameRateOverridesByContent) {
+    mFrameRateOverrideByContent.clear();
+    mFrameRateOverrideByContent.emplace(0, 30.0_Hz);
+    mFrameRateOverrideByContent.emplace(1, 60.0_Hz);
+    ASSERT_TRUE(mFrameRateOverrideMappings.updateFrameRateOverridesByContent(
+            mFrameRateOverrideByContent));
+
+    ASSERT_TRUE(isApproxEqual(30.0_Hz,
+                              *mFrameRateOverrideMappings.getFrameRateOverrideForUid(
+                                      0, /*supportsFrameRateOverrideByContent*/ true)));
+    ASSERT_TRUE(isApproxEqual(60.0_Hz,
+                              *mFrameRateOverrideMappings.getFrameRateOverrideForUid(
+                                      1, /*supportsFrameRateOverrideByContent*/ true)));
+    ASSERT_EQ(std::nullopt,
+              mFrameRateOverrideMappings
+                      .getFrameRateOverrideForUid(1, /*supportsFrameRateOverrideByContent*/ false));
+    ASSERT_EQ(std::nullopt,
+              mFrameRateOverrideMappings
+                      .getFrameRateOverrideForUid(3, /*supportsFrameRateOverrideByContent*/ true));
+    ASSERT_EQ(std::nullopt,
+              mFrameRateOverrideMappings
+                      .getFrameRateOverrideForUid(3, /*supportsFrameRateOverrideByContent*/ false));
+}
+
+TEST_F(FrameRateOverrideMappingsTest, testSetGameModeRefreshRateForUid) {
+    mFrameRateOverrideMappings.setGameModeRefreshRateForUid({1, 30.0f});
+    mFrameRateOverrideMappings.setGameModeRefreshRateForUid({2, 90.0f});
+
+    ASSERT_TRUE(isApproxEqual(30.0_Hz,
+                              *mFrameRateOverrideMappings.getFrameRateOverrideForUid(
+                                      1, /*supportsFrameRateOverrideByContent*/ true)));
+    ASSERT_TRUE(isApproxEqual(90.0_Hz,
+                              *mFrameRateOverrideMappings.getFrameRateOverrideForUid(
+                                      2, /*supportsFrameRateOverrideByContent*/ false)));
+    ASSERT_EQ(std::nullopt,
+              mFrameRateOverrideMappings
+                      .getFrameRateOverrideForUid(0, /*supportsFrameRateOverrideByContent*/ true));
+    ASSERT_EQ(std::nullopt,
+              mFrameRateOverrideMappings
+                      .getFrameRateOverrideForUid(0, /*supportsFrameRateOverrideByContent*/ false));
+}
+
+TEST_F(FrameRateOverrideMappingsTest, testSetPreferredRefreshRateForUid) {
+    mFrameRateOverrideMappings.setPreferredRefreshRateForUid({0, 60.0f});
+    mFrameRateOverrideMappings.setPreferredRefreshRateForUid({2, 120.0f});
+
+    ASSERT_TRUE(isApproxEqual(60.0_Hz,
+                              *mFrameRateOverrideMappings.getFrameRateOverrideForUid(
+                                      0, /*supportsFrameRateOverrideByContent*/ true)));
+    ASSERT_TRUE(isApproxEqual(120.0_Hz,
+                              *mFrameRateOverrideMappings.getFrameRateOverrideForUid(
+                                      2, /*supportsFrameRateOverrideByContent*/ false)));
+    ASSERT_EQ(std::nullopt,
+              mFrameRateOverrideMappings
+                      .getFrameRateOverrideForUid(1, /*supportsFrameRateOverrideByContent*/ true));
+    ASSERT_EQ(std::nullopt,
+              mFrameRateOverrideMappings
+                      .getFrameRateOverrideForUid(1, /*supportsFrameRateOverrideByContent*/ false));
+}
+
+TEST_F(FrameRateOverrideMappingsTest, testGetFrameRateOverrideForUidMixed) {
+    mFrameRateOverrideByContent.clear();
+    mFrameRateOverrideByContent.emplace(0, 30.0_Hz);
+    mFrameRateOverrideByContent.emplace(1, 60.0_Hz);
+    mFrameRateOverrideByContent.emplace(2, 45.0_Hz);
+    mFrameRateOverrideByContent.emplace(5, 120.0_Hz);
+    ASSERT_TRUE(mFrameRateOverrideMappings.updateFrameRateOverridesByContent(
+            mFrameRateOverrideByContent));
+
+    std::vector<FrameRateOverride> allFrameRateOverrides;
+    ASSERT_EQ(allFrameRateOverrides,
+              mFrameRateOverrideMappings.getAllFrameRateOverrides(
+                      /*supportsFrameRateOverrideByContent*/ false));
+    allFrameRateOverrides = {{0, 30.0f}, {1, 60.0f}, {2, 45.0f}, {5, 120.0f}};
+    ASSERT_EQ(allFrameRateOverrides,
+              mFrameRateOverrideMappings.getAllFrameRateOverrides(
+                      /*supportsFrameRateOverrideByContent*/ true));
+
+    mFrameRateOverrideMappings.setGameModeRefreshRateForUid({1, 30.0f});
+    mFrameRateOverrideMappings.setGameModeRefreshRateForUid({2, 90.0f});
+    mFrameRateOverrideMappings.setGameModeRefreshRateForUid({4, 120.0f});
+
+    allFrameRateOverrides.clear();
+    allFrameRateOverrides = {{1, 30.0f}, {2, 90.0f}, {4, 120.0f}};
+    ASSERT_EQ(allFrameRateOverrides,
+              mFrameRateOverrideMappings.getAllFrameRateOverrides(
+                      /*supportsFrameRateOverrideByContent*/ false));
+    allFrameRateOverrides.clear();
+    allFrameRateOverrides = {{1, 30.0f}, {2, 90.0f}, {4, 120.0f}, {0, 30.0f}, {5, 120.0f}};
+    ASSERT_EQ(allFrameRateOverrides,
+              mFrameRateOverrideMappings.getAllFrameRateOverrides(
+                      /*supportsFrameRateOverrideByContent*/ true));
+
+    mFrameRateOverrideMappings.setPreferredRefreshRateForUid({0, 60.0f});
+    mFrameRateOverrideMappings.setPreferredRefreshRateForUid({2, 120.0f});
+    mFrameRateOverrideMappings.setPreferredRefreshRateForUid({3, 30.0f});
+
+    allFrameRateOverrides.clear();
+    allFrameRateOverrides = {{0, 60.0f}, {2, 120.0f}, {3, 30.0f}, {1, 30.0f}, {4, 120.0f}};
+    ASSERT_EQ(allFrameRateOverrides,
+              mFrameRateOverrideMappings.getAllFrameRateOverrides(
+                      /*supportsFrameRateOverrideByContent*/ false));
+    allFrameRateOverrides.clear();
+    allFrameRateOverrides = {{0, 60.0f}, {2, 120.0f}, {3, 30.0f},
+                             {1, 30.0f}, {4, 120.0f}, {5, 120.0f}};
+    ASSERT_EQ(allFrameRateOverrides,
+              mFrameRateOverrideMappings.getAllFrameRateOverrides(
+                      /*supportsFrameRateOverrideByContent*/ true));
+
+    ASSERT_TRUE(isApproxEqual(60.0_Hz,
+                              *mFrameRateOverrideMappings.getFrameRateOverrideForUid(
+                                      0, /*supportsFrameRateOverrideByContent*/ true)));
+    ASSERT_TRUE(isApproxEqual(30.0_Hz,
+                              *mFrameRateOverrideMappings.getFrameRateOverrideForUid(
+                                      1, /*supportsFrameRateOverrideByContent*/ true)));
+    ASSERT_TRUE(isApproxEqual(120.0_Hz,
+                              *mFrameRateOverrideMappings.getFrameRateOverrideForUid(
+                                      2, /*supportsFrameRateOverrideByContent*/ true)));
+    ASSERT_TRUE(isApproxEqual(30.0_Hz,
+                              *mFrameRateOverrideMappings.getFrameRateOverrideForUid(
+                                      3, /*supportsFrameRateOverrideByContent*/ true)));
+    ASSERT_TRUE(isApproxEqual(120.0_Hz,
+                              *mFrameRateOverrideMappings.getFrameRateOverrideForUid(
+                                      4, /*supportsFrameRateOverrideByContent*/ true)));
+    ASSERT_TRUE(isApproxEqual(120.0_Hz,
+                              *mFrameRateOverrideMappings.getFrameRateOverrideForUid(
+                                      5, /*supportsFrameRateOverrideByContent*/ true)));
+
+    ASSERT_TRUE(isApproxEqual(60.0_Hz,
+                              *mFrameRateOverrideMappings.getFrameRateOverrideForUid(
+                                      0, /*supportsFrameRateOverrideByContent*/ false)));
+    ASSERT_TRUE(isApproxEqual(30.0_Hz,
+                              *mFrameRateOverrideMappings.getFrameRateOverrideForUid(
+                                      1, /*supportsFrameRateOverrideByContent*/ false)));
+    ASSERT_TRUE(isApproxEqual(120.0_Hz,
+                              *mFrameRateOverrideMappings.getFrameRateOverrideForUid(
+                                      2, /*supportsFrameRateOverrideByContent*/ false)));
+    ASSERT_TRUE(isApproxEqual(30.0_Hz,
+                              *mFrameRateOverrideMappings.getFrameRateOverrideForUid(
+                                      3, /*supportsFrameRateOverrideByContent*/ false)));
+    ASSERT_TRUE(isApproxEqual(120.0_Hz,
+                              *mFrameRateOverrideMappings.getFrameRateOverrideForUid(
+                                      4, /*supportsFrameRateOverrideByContent*/ false)));
+    ASSERT_EQ(std::nullopt,
+              mFrameRateOverrideMappings
+                      .getFrameRateOverrideForUid(5, /*supportsFrameRateOverrideByContent*/ false));
+}
+} // namespace
+} // namespace android::scheduler