Extract KeyboardInputMapperTest and subtests to separate file

The code added to KeyboardInputMapper_test.cpp is identical to that
removed from InputReader_test.cpp, except for the added TODO and copies
of the relevant constants.

Bug: 283812079
Test: atest frameworks/native/services/inputflinger/tests/KeyboardInputMapper_test.cpp
Flag: TEST_ONLY
Change-Id: I33380a3ce5e10db624b061674740f51fb5c2167d

2 files changed, 1073 insertions, 1042 deletions

diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index ee3b2a24d7..9d2256f52f 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -3031,1048 +3031,6 @@ TEST_F(InputDeviceTest, KernelBufferOverflowResetsMappers) {
     mapper.assertProcessWasCalled();
 }
 
-// --- KeyboardInputMapperTest ---
-
-class KeyboardInputMapperTest : public InputMapperTest {
-protected:
-    void SetUp() override {
-        InputMapperTest::SetUp(DEVICE_CLASSES | InputDeviceClass::KEYBOARD |
-                               InputDeviceClass::ALPHAKEY);
-    }
-    const std::string UNIQUE_ID = "local:0";
-    const KeyboardLayoutInfo DEVICE_KEYBOARD_LAYOUT_INFO = KeyboardLayoutInfo("en-US", "qwerty");
-    void prepareDisplay(ui::Rotation orientation);
-
-    void testDPadKeyRotation(KeyboardInputMapper& mapper, int32_t originalScanCode,
-                             int32_t originalKeyCode, int32_t rotatedKeyCode,
-                             ui::LogicalDisplayId displayId = ui::LogicalDisplayId::INVALID);
-};
-
-/* Similar to setDisplayInfoAndReconfigure, but pre-populates all parameters except for the
- * orientation.
- */
-void KeyboardInputMapperTest::prepareDisplay(ui::Rotation orientation) {
-    setDisplayInfoAndReconfigure(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT, orientation, UNIQUE_ID,
-                                 NO_PORT, ViewportType::INTERNAL);
-}
-
-void KeyboardInputMapperTest::testDPadKeyRotation(KeyboardInputMapper& mapper,
-                                                  int32_t originalScanCode, int32_t originalKeyCode,
-                                                  int32_t rotatedKeyCode,
-                                                  ui::LogicalDisplayId displayId) {
-    NotifyKeyArgs args;
-
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, originalScanCode, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, args.action);
-    ASSERT_EQ(originalScanCode, args.scanCode);
-    ASSERT_EQ(rotatedKeyCode, args.keyCode);
-    ASSERT_EQ(displayId, args.displayId);
-
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, originalScanCode, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(AKEY_EVENT_ACTION_UP, args.action);
-    ASSERT_EQ(originalScanCode, args.scanCode);
-    ASSERT_EQ(rotatedKeyCode, args.keyCode);
-    ASSERT_EQ(displayId, args.displayId);
-}
-
-TEST_F(KeyboardInputMapperTest, GetSources) {
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-
-    ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, mapper.getSources());
-}
-
-TEST_F(KeyboardInputMapperTest, Process_SimpleKeyPress) {
-    const int32_t USAGE_A = 0x070004;
-    const int32_t USAGE_UNKNOWN = 0x07ffff;
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_HOME, 0, AKEYCODE_HOME, POLICY_FLAG_WAKE);
-    mFakeEventHub->addKey(EVENTHUB_ID, 0, USAGE_A, AKEYCODE_A, POLICY_FLAG_WAKE);
-    mFakeEventHub->addKey(EVENTHUB_ID, 0, KEY_NUMLOCK, AKEYCODE_NUM_LOCK, POLICY_FLAG_WAKE);
-    mFakeEventHub->addKey(EVENTHUB_ID, 0, KEY_CAPSLOCK, AKEYCODE_CAPS_LOCK, POLICY_FLAG_WAKE);
-    mFakeEventHub->addKey(EVENTHUB_ID, 0, KEY_SCROLLLOCK, AKEYCODE_SCROLL_LOCK, POLICY_FLAG_WAKE);
-
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-    // Initial metastate is AMETA_NONE.
-    ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
-
-    // Key down by scan code.
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_HOME, 1);
-    NotifyKeyArgs args;
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(DEVICE_ID, args.deviceId);
-    ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
-    ASSERT_EQ(ARBITRARY_TIME, args.eventTime);
-    ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, args.action);
-    ASSERT_EQ(AKEYCODE_HOME, args.keyCode);
-    ASSERT_EQ(KEY_HOME, args.scanCode);
-    ASSERT_EQ(AMETA_NONE, args.metaState);
-    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM, args.flags);
-    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
-    ASSERT_EQ(ARBITRARY_TIME, args.downTime);
-
-    // Key up by scan code.
-    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_HOME, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(DEVICE_ID, args.deviceId);
-    ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
-    ASSERT_EQ(ARBITRARY_TIME + 1, args.eventTime);
-    ASSERT_EQ(AKEY_EVENT_ACTION_UP, args.action);
-    ASSERT_EQ(AKEYCODE_HOME, args.keyCode);
-    ASSERT_EQ(KEY_HOME, args.scanCode);
-    ASSERT_EQ(AMETA_NONE, args.metaState);
-    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM, args.flags);
-    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
-    ASSERT_EQ(ARBITRARY_TIME, args.downTime);
-
-    // Key down by usage code.
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_MSC, MSC_SCAN, USAGE_A);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, 0, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(DEVICE_ID, args.deviceId);
-    ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
-    ASSERT_EQ(ARBITRARY_TIME, args.eventTime);
-    ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, args.action);
-    ASSERT_EQ(AKEYCODE_A, args.keyCode);
-    ASSERT_EQ(0, args.scanCode);
-    ASSERT_EQ(AMETA_NONE, args.metaState);
-    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM, args.flags);
-    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
-    ASSERT_EQ(ARBITRARY_TIME, args.downTime);
-
-    // Key up by usage code.
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_MSC, MSC_SCAN, USAGE_A);
-    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, 0, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(DEVICE_ID, args.deviceId);
-    ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
-    ASSERT_EQ(ARBITRARY_TIME + 1, args.eventTime);
-    ASSERT_EQ(AKEY_EVENT_ACTION_UP, args.action);
-    ASSERT_EQ(AKEYCODE_A, args.keyCode);
-    ASSERT_EQ(0, args.scanCode);
-    ASSERT_EQ(AMETA_NONE, args.metaState);
-    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM, args.flags);
-    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
-    ASSERT_EQ(ARBITRARY_TIME, args.downTime);
-
-    // Key down with unknown scan code or usage code.
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_MSC, MSC_SCAN, USAGE_UNKNOWN);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UNKNOWN, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(DEVICE_ID, args.deviceId);
-    ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
-    ASSERT_EQ(ARBITRARY_TIME, args.eventTime);
-    ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, args.action);
-    ASSERT_EQ(0, args.keyCode);
-    ASSERT_EQ(KEY_UNKNOWN, args.scanCode);
-    ASSERT_EQ(AMETA_NONE, args.metaState);
-    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM, args.flags);
-    ASSERT_EQ(0U, args.policyFlags);
-    ASSERT_EQ(ARBITRARY_TIME, args.downTime);
-
-    // Key up with unknown scan code or usage code.
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_MSC, MSC_SCAN, USAGE_UNKNOWN);
-    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_UNKNOWN, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(DEVICE_ID, args.deviceId);
-    ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
-    ASSERT_EQ(ARBITRARY_TIME + 1, args.eventTime);
-    ASSERT_EQ(AKEY_EVENT_ACTION_UP, args.action);
-    ASSERT_EQ(0, args.keyCode);
-    ASSERT_EQ(KEY_UNKNOWN, args.scanCode);
-    ASSERT_EQ(AMETA_NONE, args.metaState);
-    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM, args.flags);
-    ASSERT_EQ(0U, args.policyFlags);
-    ASSERT_EQ(ARBITRARY_TIME, args.downTime);
-}
-
-TEST_F(KeyboardInputMapperTest, Process_KeyRemapping) {
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_A, 0, AKEYCODE_A, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_B, 0, AKEYCODE_B, 0);
-
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-
-    mFakeEventHub->setKeyRemapping(EVENTHUB_ID, {{AKEYCODE_A, AKEYCODE_B}});
-    // Key down by scan code.
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_A, 1);
-    NotifyKeyArgs args;
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(AKEYCODE_B, args.keyCode);
-
-    // Key up by scan code.
-    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_A, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(AKEYCODE_B, args.keyCode);
-}
-
-/**
- * Ensure that the readTime is set to the time when the EV_KEY is received.
- */
-TEST_F(KeyboardInputMapperTest, Process_SendsReadTime) {
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_HOME, 0, AKEYCODE_HOME, POLICY_FLAG_WAKE);
-
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-    NotifyKeyArgs args;
-
-    // Key down
-    process(mapper, ARBITRARY_TIME, /*readTime=*/12, EV_KEY, KEY_HOME, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(12, args.readTime);
-
-    // Key up
-    process(mapper, ARBITRARY_TIME, /*readTime=*/15, EV_KEY, KEY_HOME, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(15, args.readTime);
-}
-
-TEST_F(KeyboardInputMapperTest, Process_ShouldUpdateMetaState) {
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_LEFTSHIFT, 0, AKEYCODE_SHIFT_LEFT, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_A, 0, AKEYCODE_A, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, 0, KEY_NUMLOCK, AKEYCODE_NUM_LOCK, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, 0, KEY_CAPSLOCK, AKEYCODE_CAPS_LOCK, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, 0, KEY_SCROLLLOCK, AKEYCODE_SCROLL_LOCK, 0);
-
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-
-    // Initial metastate is AMETA_NONE.
-    ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
-
-    // Metakey down.
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_LEFTSHIFT, 1);
-    NotifyKeyArgs args;
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_ON, args.metaState);
-    ASSERT_EQ(AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_ON, mapper.getMetaState());
-    ASSERT_NO_FATAL_FAILURE(mReader->getContext()->assertUpdateGlobalMetaStateWasCalled());
-
-    // Key down.
-    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_A, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_ON, args.metaState);
-    ASSERT_EQ(AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_ON, mapper.getMetaState());
-
-    // Key up.
-    process(mapper, ARBITRARY_TIME + 2, READ_TIME, EV_KEY, KEY_A, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_ON, args.metaState);
-    ASSERT_EQ(AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_ON, mapper.getMetaState());
-
-    // Metakey up.
-    process(mapper, ARBITRARY_TIME + 3, READ_TIME, EV_KEY, KEY_LEFTSHIFT, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(AMETA_NONE, args.metaState);
-    ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
-    ASSERT_NO_FATAL_FAILURE(mReader->getContext()->assertUpdateGlobalMetaStateWasCalled());
-}
-
-TEST_F(KeyboardInputMapperTest, Process_WhenNotOrientationAware_ShouldNotRotateDPad) {
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_UP, 0, AKEYCODE_DPAD_UP, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_RIGHT, 0, AKEYCODE_DPAD_RIGHT, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_DOWN, 0, AKEYCODE_DPAD_DOWN, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_LEFT, 0, AKEYCODE_DPAD_LEFT, 0);
-
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-
-    prepareDisplay(ui::ROTATION_90);
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper,
-            KEY_UP, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_UP));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper,
-            KEY_RIGHT, AKEYCODE_DPAD_RIGHT, AKEYCODE_DPAD_RIGHT));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper,
-            KEY_DOWN, AKEYCODE_DPAD_DOWN, AKEYCODE_DPAD_DOWN));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper,
-            KEY_LEFT, AKEYCODE_DPAD_LEFT, AKEYCODE_DPAD_LEFT));
-}
-
-TEST_F(KeyboardInputMapperTest, Process_WhenOrientationAware_ShouldRotateDPad) {
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_UP, 0, AKEYCODE_DPAD_UP, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_RIGHT, 0, AKEYCODE_DPAD_RIGHT, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_DOWN, 0, AKEYCODE_DPAD_DOWN, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_LEFT, 0, AKEYCODE_DPAD_LEFT, 0);
-
-    addConfigurationProperty("keyboard.orientationAware", "1");
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-
-    prepareDisplay(ui::ROTATION_0);
-    ASSERT_NO_FATAL_FAILURE(
-            testDPadKeyRotation(mapper, KEY_UP, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_UP, DISPLAY_ID));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_RIGHT, AKEYCODE_DPAD_RIGHT,
-                                                AKEYCODE_DPAD_RIGHT, DISPLAY_ID));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_DOWN, AKEYCODE_DPAD_DOWN,
-                                                AKEYCODE_DPAD_DOWN, DISPLAY_ID));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_LEFT, AKEYCODE_DPAD_LEFT,
-                                                AKEYCODE_DPAD_LEFT, DISPLAY_ID));
-
-    clearViewports();
-    prepareDisplay(ui::ROTATION_90);
-    ASSERT_NO_FATAL_FAILURE(
-            testDPadKeyRotation(mapper, KEY_UP, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_LEFT, DISPLAY_ID));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_RIGHT, AKEYCODE_DPAD_RIGHT,
-                                                AKEYCODE_DPAD_UP, DISPLAY_ID));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_DOWN, AKEYCODE_DPAD_DOWN,
-                                                AKEYCODE_DPAD_RIGHT, DISPLAY_ID));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_LEFT, AKEYCODE_DPAD_LEFT,
-                                                AKEYCODE_DPAD_DOWN, DISPLAY_ID));
-
-    clearViewports();
-    prepareDisplay(ui::ROTATION_180);
-    ASSERT_NO_FATAL_FAILURE(
-            testDPadKeyRotation(mapper, KEY_UP, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_DOWN, DISPLAY_ID));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_RIGHT, AKEYCODE_DPAD_RIGHT,
-                                                AKEYCODE_DPAD_LEFT, DISPLAY_ID));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_DOWN, AKEYCODE_DPAD_DOWN,
-                                                AKEYCODE_DPAD_UP, DISPLAY_ID));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_LEFT, AKEYCODE_DPAD_LEFT,
-                                                AKEYCODE_DPAD_RIGHT, DISPLAY_ID));
-
-    clearViewports();
-    prepareDisplay(ui::ROTATION_270);
-    ASSERT_NO_FATAL_FAILURE(
-            testDPadKeyRotation(mapper, KEY_UP, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_RIGHT, DISPLAY_ID));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_RIGHT, AKEYCODE_DPAD_RIGHT,
-                                                AKEYCODE_DPAD_DOWN, DISPLAY_ID));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_DOWN, AKEYCODE_DPAD_DOWN,
-                                                AKEYCODE_DPAD_LEFT, DISPLAY_ID));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_LEFT, AKEYCODE_DPAD_LEFT,
-                                                AKEYCODE_DPAD_UP, DISPLAY_ID));
-
-    // Special case: if orientation changes while key is down, we still emit the same keycode
-    // in the key up as we did in the key down.
-    NotifyKeyArgs args;
-    clearViewports();
-    prepareDisplay(ui::ROTATION_270);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, args.action);
-    ASSERT_EQ(KEY_UP, args.scanCode);
-    ASSERT_EQ(AKEYCODE_DPAD_RIGHT, args.keyCode);
-
-    clearViewports();
-    prepareDisplay(ui::ROTATION_180);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(AKEY_EVENT_ACTION_UP, args.action);
-    ASSERT_EQ(KEY_UP, args.scanCode);
-    ASSERT_EQ(AKEYCODE_DPAD_RIGHT, args.keyCode);
-}
-
-TEST_F(KeyboardInputMapperTest, DisplayIdConfigurationChange_NotOrientationAware) {
-    // If the keyboard is not orientation aware,
-    // key events should not be associated with a specific display id
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_UP, 0, AKEYCODE_DPAD_UP, 0);
-
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-    NotifyKeyArgs args;
-
-    // Display id should be LogicalDisplayId::INVALID without any display configuration.
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(ui::LogicalDisplayId::INVALID, args.displayId);
-
-    prepareDisplay(ui::ROTATION_0);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(ui::LogicalDisplayId::INVALID, args.displayId);
-}
-
-TEST_F(KeyboardInputMapperTest, DisplayIdConfigurationChange_OrientationAware) {
-    // If the keyboard is orientation aware,
-    // key events should be associated with the internal viewport
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_UP, 0, AKEYCODE_DPAD_UP, 0);
-
-    addConfigurationProperty("keyboard.orientationAware", "1");
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-    NotifyKeyArgs args;
-
-    // Display id should be LogicalDisplayId::INVALID without any display configuration.
-    // ^--- already checked by the previous test
-
-    setDisplayInfoAndReconfigure(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT, ui::ROTATION_0,
-                                 UNIQUE_ID, NO_PORT, ViewportType::INTERNAL);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(DISPLAY_ID, args.displayId);
-
-    constexpr ui::LogicalDisplayId newDisplayId = ui::LogicalDisplayId{2};
-    clearViewports();
-    setDisplayInfoAndReconfigure(newDisplayId, DISPLAY_WIDTH, DISPLAY_HEIGHT, ui::ROTATION_0,
-                                 UNIQUE_ID, NO_PORT, ViewportType::INTERNAL);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(newDisplayId, args.displayId);
-}
-
-TEST_F(KeyboardInputMapperTest, GetKeyCodeState) {
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-
-    mFakeEventHub->setKeyCodeState(EVENTHUB_ID, AKEYCODE_A, 1);
-    ASSERT_EQ(1, mapper.getKeyCodeState(AINPUT_SOURCE_ANY, AKEYCODE_A));
-
-    mFakeEventHub->setKeyCodeState(EVENTHUB_ID, AKEYCODE_A, 0);
-    ASSERT_EQ(0, mapper.getKeyCodeState(AINPUT_SOURCE_ANY, AKEYCODE_A));
-}
-
-TEST_F(KeyboardInputMapperTest, GetKeyCodeForKeyLocation) {
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-
-    mFakeEventHub->addKeyCodeMapping(EVENTHUB_ID, AKEYCODE_Y, AKEYCODE_Z);
-    ASSERT_EQ(AKEYCODE_Z, mapper.getKeyCodeForKeyLocation(AKEYCODE_Y))
-            << "If a mapping is available, the result is equal to the mapping";
-
-    ASSERT_EQ(AKEYCODE_A, mapper.getKeyCodeForKeyLocation(AKEYCODE_A))
-            << "If no mapping is available, the result is the key location";
-}
-
-TEST_F(KeyboardInputMapperTest, GetScanCodeState) {
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-
-    mFakeEventHub->setScanCodeState(EVENTHUB_ID, KEY_A, 1);
-    ASSERT_EQ(1, mapper.getScanCodeState(AINPUT_SOURCE_ANY, KEY_A));
-
-    mFakeEventHub->setScanCodeState(EVENTHUB_ID, KEY_A, 0);
-    ASSERT_EQ(0, mapper.getScanCodeState(AINPUT_SOURCE_ANY, KEY_A));
-}
-
-TEST_F(KeyboardInputMapperTest, MarkSupportedKeyCodes) {
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_A, 0, AKEYCODE_A, 0);
-
-    uint8_t flags[2] = { 0, 0 };
-    ASSERT_TRUE(mapper.markSupportedKeyCodes(AINPUT_SOURCE_ANY, {AKEYCODE_A, AKEYCODE_B}, flags));
-    ASSERT_TRUE(flags[0]);
-    ASSERT_FALSE(flags[1]);
-}
-
-TEST_F(KeyboardInputMapperTest, Process_LockedKeysShouldToggleMetaStateAndLeds) {
-    mFakeEventHub->addLed(EVENTHUB_ID, LED_CAPSL, true /*initially on*/);
-    mFakeEventHub->addLed(EVENTHUB_ID, LED_NUML, false /*initially off*/);
-    mFakeEventHub->addLed(EVENTHUB_ID, LED_SCROLLL, false /*initially off*/);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_CAPSLOCK, 0, AKEYCODE_CAPS_LOCK, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_NUMLOCK, 0, AKEYCODE_NUM_LOCK, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_SCROLLLOCK, 0, AKEYCODE_SCROLL_LOCK, 0);
-
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-    // Initial metastate is AMETA_NONE.
-    ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
-
-    // Initialization should have turned all of the lights off.
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
-
-    // Toggle caps lock on.
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 1);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 0);
-    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
-    ASSERT_EQ(AMETA_CAPS_LOCK_ON, mapper.getMetaState());
-
-    // Toggle num lock on.
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 1);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 0);
-    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
-    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
-    ASSERT_EQ(AMETA_CAPS_LOCK_ON | AMETA_NUM_LOCK_ON, mapper.getMetaState());
-
-    // Toggle caps lock off.
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 1);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 0);
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
-    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
-    ASSERT_EQ(AMETA_NUM_LOCK_ON, mapper.getMetaState());
-
-    // Toggle scroll lock on.
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 1);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 0);
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
-    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
-    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
-    ASSERT_EQ(AMETA_NUM_LOCK_ON | AMETA_SCROLL_LOCK_ON, mapper.getMetaState());
-
-    // Toggle num lock off.
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 1);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 0);
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
-    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
-    ASSERT_EQ(AMETA_SCROLL_LOCK_ON, mapper.getMetaState());
-
-    // Toggle scroll lock off.
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 1);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 0);
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
-    ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
-}
-
-TEST_F(KeyboardInputMapperTest, Configure_AssignsDisplayPort) {
-    // keyboard 1.
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_UP, 0, AKEYCODE_DPAD_UP, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_RIGHT, 0, AKEYCODE_DPAD_RIGHT, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_DOWN, 0, AKEYCODE_DPAD_DOWN, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_LEFT, 0, AKEYCODE_DPAD_LEFT, 0);
-
-    // keyboard 2.
-    const std::string USB2 = "USB2";
-    const std::string DEVICE_NAME2 = "KEYBOARD2";
-    constexpr int32_t SECOND_DEVICE_ID = DEVICE_ID + 1;
-    constexpr int32_t SECOND_EVENTHUB_ID = EVENTHUB_ID + 1;
-    std::shared_ptr<InputDevice> device2 =
-            newDevice(SECOND_DEVICE_ID, DEVICE_NAME2, USB2, SECOND_EVENTHUB_ID,
-                      ftl::Flags<InputDeviceClass>(0));
-
-    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_UP, 0, AKEYCODE_DPAD_UP, 0);
-    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_RIGHT, 0, AKEYCODE_DPAD_RIGHT, 0);
-    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_DOWN, 0, AKEYCODE_DPAD_DOWN, 0);
-    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_LEFT, 0, AKEYCODE_DPAD_LEFT, 0);
-
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-
-    device2->addEmptyEventHubDevice(SECOND_EVENTHUB_ID);
-    KeyboardInputMapper& mapper2 =
-            device2->constructAndAddMapper<KeyboardInputMapper>(SECOND_EVENTHUB_ID,
-                                                                mFakePolicy
-                                                                        ->getReaderConfiguration(),
-                                                                AINPUT_SOURCE_KEYBOARD);
-    std::list<NotifyArgs> unused =
-            device2->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
-                               /*changes=*/{});
-    unused += device2->reset(ARBITRARY_TIME);
-
-    // Prepared displays and associated info.
-    constexpr uint8_t hdmi1 = 0;
-    constexpr uint8_t hdmi2 = 1;
-    const std::string SECONDARY_UNIQUE_ID = "local:1";
-
-    mFakePolicy->addInputPortAssociation(DEVICE_LOCATION, hdmi1);
-    mFakePolicy->addInputPortAssociation(USB2, hdmi2);
-
-    // No associated display viewport found, should disable the device.
-    unused += device2->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
-                                 InputReaderConfiguration::Change::DISPLAY_INFO);
-    ASSERT_FALSE(device2->isEnabled());
-
-    // Prepare second display.
-    constexpr ui::LogicalDisplayId newDisplayId = ui::LogicalDisplayId{2};
-    setDisplayInfoAndReconfigure(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT, ui::ROTATION_0,
-                                 UNIQUE_ID, hdmi1, ViewportType::INTERNAL);
-    setDisplayInfoAndReconfigure(newDisplayId, DISPLAY_WIDTH, DISPLAY_HEIGHT, ui::ROTATION_0,
-                                 SECONDARY_UNIQUE_ID, hdmi2, ViewportType::EXTERNAL);
-    // Default device will reconfigure above, need additional reconfiguration for another device.
-    unused += device2->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
-                                 InputReaderConfiguration::Change::DISPLAY_INFO);
-
-    // Device should be enabled after the associated display is found.
-    ASSERT_TRUE(mDevice->isEnabled());
-    ASSERT_TRUE(device2->isEnabled());
-
-    // Test pad key events
-    ASSERT_NO_FATAL_FAILURE(
-            testDPadKeyRotation(mapper, KEY_UP, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_UP, DISPLAY_ID));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_RIGHT, AKEYCODE_DPAD_RIGHT,
-                                                AKEYCODE_DPAD_RIGHT, DISPLAY_ID));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_DOWN, AKEYCODE_DPAD_DOWN,
-                                                AKEYCODE_DPAD_DOWN, DISPLAY_ID));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_LEFT, AKEYCODE_DPAD_LEFT,
-                                                AKEYCODE_DPAD_LEFT, DISPLAY_ID));
-
-    ASSERT_NO_FATAL_FAILURE(
-            testDPadKeyRotation(mapper2, KEY_UP, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_UP, newDisplayId));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper2, KEY_RIGHT, AKEYCODE_DPAD_RIGHT,
-                                                AKEYCODE_DPAD_RIGHT, newDisplayId));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper2, KEY_DOWN, AKEYCODE_DPAD_DOWN,
-                                                AKEYCODE_DPAD_DOWN, newDisplayId));
-    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper2, KEY_LEFT, AKEYCODE_DPAD_LEFT,
-                                                AKEYCODE_DPAD_LEFT, newDisplayId));
-}
-
-TEST_F(KeyboardInputMapperTest, Process_LockedKeysShouldToggleAfterReattach) {
-    mFakeEventHub->addLed(EVENTHUB_ID, LED_CAPSL, true /*initially on*/);
-    mFakeEventHub->addLed(EVENTHUB_ID, LED_NUML, false /*initially off*/);
-    mFakeEventHub->addLed(EVENTHUB_ID, LED_SCROLLL, false /*initially off*/);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_CAPSLOCK, 0, AKEYCODE_CAPS_LOCK, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_NUMLOCK, 0, AKEYCODE_NUM_LOCK, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_SCROLLLOCK, 0, AKEYCODE_SCROLL_LOCK, 0);
-
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-    // Initial metastate is AMETA_NONE.
-    ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
-
-    // Initialization should have turned all of the lights off.
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
-
-    // Toggle caps lock on.
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 1);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 0);
-    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
-    ASSERT_EQ(AMETA_CAPS_LOCK_ON, mapper.getMetaState());
-
-    // Toggle num lock on.
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 1);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 0);
-    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
-    ASSERT_EQ(AMETA_CAPS_LOCK_ON | AMETA_NUM_LOCK_ON, mapper.getMetaState());
-
-    // Toggle scroll lock on.
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 1);
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 0);
-    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
-    ASSERT_EQ(AMETA_CAPS_LOCK_ON | AMETA_NUM_LOCK_ON | AMETA_SCROLL_LOCK_ON, mapper.getMetaState());
-
-    mFakeEventHub->removeDevice(EVENTHUB_ID);
-    mReader->loopOnce();
-
-    // keyboard 2 should default toggle keys.
-    const std::string USB2 = "USB2";
-    const std::string DEVICE_NAME2 = "KEYBOARD2";
-    constexpr int32_t SECOND_DEVICE_ID = DEVICE_ID + 1;
-    constexpr int32_t SECOND_EVENTHUB_ID = EVENTHUB_ID + 1;
-    std::shared_ptr<InputDevice> device2 =
-            newDevice(SECOND_DEVICE_ID, DEVICE_NAME2, USB2, SECOND_EVENTHUB_ID,
-                      ftl::Flags<InputDeviceClass>(0));
-    mFakeEventHub->addLed(SECOND_EVENTHUB_ID, LED_CAPSL, true /*initially on*/);
-    mFakeEventHub->addLed(SECOND_EVENTHUB_ID, LED_NUML, false /*initially off*/);
-    mFakeEventHub->addLed(SECOND_EVENTHUB_ID, LED_SCROLLL, false /*initially off*/);
-    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_CAPSLOCK, 0, AKEYCODE_CAPS_LOCK, 0);
-    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_NUMLOCK, 0, AKEYCODE_NUM_LOCK, 0);
-    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_SCROLLLOCK, 0, AKEYCODE_SCROLL_LOCK, 0);
-
-    device2->addEmptyEventHubDevice(SECOND_EVENTHUB_ID);
-    KeyboardInputMapper& mapper2 =
-            device2->constructAndAddMapper<KeyboardInputMapper>(SECOND_EVENTHUB_ID,
-                                                                mFakePolicy
-                                                                        ->getReaderConfiguration(),
-                                                                AINPUT_SOURCE_KEYBOARD);
-    std::list<NotifyArgs> unused =
-            device2->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
-                               /*changes=*/{});
-    unused += device2->reset(ARBITRARY_TIME);
-
-    ASSERT_TRUE(mFakeEventHub->getLedState(SECOND_EVENTHUB_ID, LED_CAPSL));
-    ASSERT_TRUE(mFakeEventHub->getLedState(SECOND_EVENTHUB_ID, LED_NUML));
-    ASSERT_TRUE(mFakeEventHub->getLedState(SECOND_EVENTHUB_ID, LED_SCROLLL));
-    ASSERT_EQ(AMETA_CAPS_LOCK_ON | AMETA_NUM_LOCK_ON | AMETA_SCROLL_LOCK_ON,
-              mapper2.getMetaState());
-}
-
-TEST_F(KeyboardInputMapperTest, Process_toggleCapsLockState) {
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_CAPSLOCK, 0, AKEYCODE_CAPS_LOCK, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_NUMLOCK, 0, AKEYCODE_NUM_LOCK, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_SCROLLLOCK, 0, AKEYCODE_SCROLL_LOCK, 0);
-
-    // Suppose we have two mappers. (DPAD + KEYBOARD)
-    constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_DPAD);
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-    // Initial metastate is AMETA_NONE.
-    ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
-
-    mReader->toggleCapsLockState(DEVICE_ID);
-    ASSERT_EQ(AMETA_CAPS_LOCK_ON, mapper.getMetaState());
-}
-
-TEST_F(KeyboardInputMapperTest, Process_LockedKeysShouldToggleInMultiDevices) {
-    // keyboard 1.
-    mFakeEventHub->addLed(EVENTHUB_ID, LED_CAPSL, true /*initially on*/);
-    mFakeEventHub->addLed(EVENTHUB_ID, LED_NUML, false /*initially off*/);
-    mFakeEventHub->addLed(EVENTHUB_ID, LED_SCROLLL, false /*initially off*/);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_CAPSLOCK, 0, AKEYCODE_CAPS_LOCK, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_NUMLOCK, 0, AKEYCODE_NUM_LOCK, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_SCROLLLOCK, 0, AKEYCODE_SCROLL_LOCK, 0);
-
-    KeyboardInputMapper& mapper1 =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-
-    // keyboard 2.
-    const std::string USB2 = "USB2";
-    const std::string DEVICE_NAME2 = "KEYBOARD2";
-    constexpr int32_t SECOND_DEVICE_ID = DEVICE_ID + 1;
-    constexpr int32_t SECOND_EVENTHUB_ID = EVENTHUB_ID + 1;
-    std::shared_ptr<InputDevice> device2 =
-            newDevice(SECOND_DEVICE_ID, DEVICE_NAME2, USB2, SECOND_EVENTHUB_ID,
-                      ftl::Flags<InputDeviceClass>(0));
-    mFakeEventHub->addLed(SECOND_EVENTHUB_ID, LED_CAPSL, true /*initially on*/);
-    mFakeEventHub->addLed(SECOND_EVENTHUB_ID, LED_NUML, false /*initially off*/);
-    mFakeEventHub->addLed(SECOND_EVENTHUB_ID, LED_SCROLLL, false /*initially off*/);
-    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_CAPSLOCK, 0, AKEYCODE_CAPS_LOCK, 0);
-    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_NUMLOCK, 0, AKEYCODE_NUM_LOCK, 0);
-    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_SCROLLLOCK, 0, AKEYCODE_SCROLL_LOCK, 0);
-
-    device2->addEmptyEventHubDevice(SECOND_EVENTHUB_ID);
-    KeyboardInputMapper& mapper2 =
-            device2->constructAndAddMapper<KeyboardInputMapper>(SECOND_EVENTHUB_ID,
-                                                                mFakePolicy
-                                                                        ->getReaderConfiguration(),
-                                                                AINPUT_SOURCE_KEYBOARD);
-    std::list<NotifyArgs> unused =
-            device2->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
-                               /*changes=*/{});
-    unused += device2->reset(ARBITRARY_TIME);
-
-    // Initial metastate is AMETA_NONE.
-    ASSERT_EQ(AMETA_NONE, mapper1.getMetaState());
-    ASSERT_EQ(AMETA_NONE, mapper2.getMetaState());
-
-    // Toggle num lock on and off.
-    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 1);
-    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 0);
-    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
-    ASSERT_EQ(AMETA_NUM_LOCK_ON, mapper1.getMetaState());
-    ASSERT_EQ(AMETA_NUM_LOCK_ON, mapper2.getMetaState());
-
-    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 1);
-    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 0);
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
-    ASSERT_EQ(AMETA_NONE, mapper1.getMetaState());
-    ASSERT_EQ(AMETA_NONE, mapper2.getMetaState());
-
-    // Toggle caps lock on and off.
-    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 1);
-    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 0);
-    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
-    ASSERT_EQ(AMETA_CAPS_LOCK_ON, mapper1.getMetaState());
-    ASSERT_EQ(AMETA_CAPS_LOCK_ON, mapper2.getMetaState());
-
-    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 1);
-    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 0);
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
-    ASSERT_EQ(AMETA_NONE, mapper1.getMetaState());
-    ASSERT_EQ(AMETA_NONE, mapper2.getMetaState());
-
-    // Toggle scroll lock on and off.
-    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 1);
-    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 0);
-    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
-    ASSERT_EQ(AMETA_SCROLL_LOCK_ON, mapper1.getMetaState());
-    ASSERT_EQ(AMETA_SCROLL_LOCK_ON, mapper2.getMetaState());
-
-    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 1);
-    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 0);
-    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
-    ASSERT_EQ(AMETA_NONE, mapper1.getMetaState());
-    ASSERT_EQ(AMETA_NONE, mapper2.getMetaState());
-}
-
-TEST_F(KeyboardInputMapperTest, Process_DisabledDevice) {
-    const int32_t USAGE_A = 0x070004;
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_HOME, 0, AKEYCODE_HOME, POLICY_FLAG_WAKE);
-    mFakeEventHub->addKey(EVENTHUB_ID, 0, USAGE_A, AKEYCODE_A, POLICY_FLAG_WAKE);
-
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-    // Key down by scan code.
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_HOME, 1);
-    NotifyKeyArgs args;
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(DEVICE_ID, args.deviceId);
-    ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
-    ASSERT_EQ(ARBITRARY_TIME, args.eventTime);
-    ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, args.action);
-    ASSERT_EQ(AKEYCODE_HOME, args.keyCode);
-    ASSERT_EQ(KEY_HOME, args.scanCode);
-    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM, args.flags);
-
-    // Disable device, it should synthesize cancellation events for down events.
-    mFakePolicy->addDisabledDevice(DEVICE_ID);
-    configureDevice(InputReaderConfiguration::Change::ENABLED_STATE);
-
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(AKEY_EVENT_ACTION_UP, args.action);
-    ASSERT_EQ(AKEYCODE_HOME, args.keyCode);
-    ASSERT_EQ(KEY_HOME, args.scanCode);
-    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_CANCELED, args.flags);
-}
-
-TEST_F(KeyboardInputMapperTest, Configure_AssignKeyboardLayoutInfo) {
-    constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-    std::list<NotifyArgs> unused =
-            mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
-                               /*changes=*/{});
-
-    uint32_t generation = mReader->getContext()->getGeneration();
-    mFakePolicy->addKeyboardLayoutAssociation(DEVICE_LOCATION, DEVICE_KEYBOARD_LAYOUT_INFO);
-
-    unused += mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
-                                 InputReaderConfiguration::Change::KEYBOARD_LAYOUT_ASSOCIATION);
-
-    InputDeviceInfo deviceInfo = mDevice->getDeviceInfo();
-    ASSERT_EQ(DEVICE_KEYBOARD_LAYOUT_INFO.languageTag,
-              deviceInfo.getKeyboardLayoutInfo()->languageTag);
-    ASSERT_EQ(DEVICE_KEYBOARD_LAYOUT_INFO.layoutType,
-              deviceInfo.getKeyboardLayoutInfo()->layoutType);
-    ASSERT_TRUE(mReader->getContext()->getGeneration() != generation);
-
-    // Call change layout association with the same values: Generation shouldn't change
-    generation = mReader->getContext()->getGeneration();
-    mFakePolicy->addKeyboardLayoutAssociation(DEVICE_LOCATION, DEVICE_KEYBOARD_LAYOUT_INFO);
-    unused += mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
-                                 InputReaderConfiguration::Change::KEYBOARD_LAYOUT_ASSOCIATION);
-    ASSERT_TRUE(mReader->getContext()->getGeneration() == generation);
-}
-
-TEST_F(KeyboardInputMapperTest, LayoutInfoCorrectlyMapped) {
-    mFakeEventHub->setRawLayoutInfo(EVENTHUB_ID,
-                                    RawLayoutInfo{.languageTag = "en", .layoutType = "extended"});
-
-    // Configuration
-    constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-    InputReaderConfiguration config;
-    std::list<NotifyArgs> unused = mDevice->configure(ARBITRARY_TIME, config, /*changes=*/{});
-
-    ASSERT_EQ("en", mDevice->getDeviceInfo().getKeyboardLayoutInfo()->languageTag);
-    ASSERT_EQ("extended", mDevice->getDeviceInfo().getKeyboardLayoutInfo()->layoutType);
-}
-
-TEST_F(KeyboardInputMapperTest, Process_GesureEventToSetFlagKeepTouchMode) {
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_LEFT, 0, AKEYCODE_DPAD_LEFT, POLICY_FLAG_GESTURE);
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-    NotifyKeyArgs args;
-
-    // Key down
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_LEFT, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_KEEP_TOUCH_MODE, args.flags);
-}
-
-TEST_F_WITH_FLAGS(KeyboardInputMapperTest, WakeBehavior_AlphabeticKeyboard,
-                  REQUIRES_FLAGS_ENABLED(ACONFIG_FLAG(com::android::input::flags,
-                                                      enable_alphabetic_keyboard_wake))) {
-    // For internal alphabetic devices, keys will trigger wake on key down.
-
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_A, 0, AKEYCODE_A, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_HOME, 0, AKEYCODE_HOME, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_PLAYPAUSE, 0, AKEYCODE_MEDIA_PLAY_PAUSE, 0);
-
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_A, 1);
-    NotifyKeyArgs args;
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
-
-    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_A, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(uint32_t(0), args.policyFlags);
-
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_HOME, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
-
-    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_HOME, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(uint32_t(0), args.policyFlags);
-
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_PLAYPAUSE, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
-
-    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_PLAYPAUSE, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(uint32_t(0), args.policyFlags);
-}
-
-/**
- * When there is more than one KeyboardInputMapper for an InputDevice, each mapper should produce
- * events that use the shared keyboard source across all mappers. This is to ensure that each
- * input device generates key events in a consistent manner, regardless of which mapper produces
- * the event.
- */
-TEST_F(KeyboardInputMapperTest, UsesSharedKeyboardSource) {
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_HOME, 0, AKEYCODE_HOME, POLICY_FLAG_WAKE);
-
-    // Add a mapper with SOURCE_KEYBOARD
-    KeyboardInputMapper& keyboardMapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-
-    process(keyboardMapper, ARBITRARY_TIME, 0, EV_KEY, KEY_HOME, 1);
-    ASSERT_NO_FATAL_FAILURE(
-            mFakeListener->assertNotifyKeyWasCalled(WithSource(AINPUT_SOURCE_KEYBOARD)));
-    process(keyboardMapper, ARBITRARY_TIME, 0, EV_KEY, KEY_HOME, 0);
-    ASSERT_NO_FATAL_FAILURE(
-            mFakeListener->assertNotifyKeyWasCalled(WithSource(AINPUT_SOURCE_KEYBOARD)));
-
-    // Add a mapper with SOURCE_DPAD
-    KeyboardInputMapper& dpadMapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_DPAD);
-    for (auto* mapper : {&keyboardMapper, &dpadMapper}) {
-        process(*mapper, ARBITRARY_TIME, 0, EV_KEY, KEY_HOME, 1);
-        ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(
-                WithSource(AINPUT_SOURCE_KEYBOARD | AINPUT_SOURCE_DPAD)));
-        process(*mapper, ARBITRARY_TIME, 0, EV_KEY, KEY_HOME, 0);
-        ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(
-                WithSource(AINPUT_SOURCE_KEYBOARD | AINPUT_SOURCE_DPAD)));
-    }
-
-    // Add a mapper with SOURCE_GAMEPAD
-    KeyboardInputMapper& gamepadMapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_GAMEPAD);
-    for (auto* mapper : {&keyboardMapper, &dpadMapper, &gamepadMapper}) {
-        process(*mapper, ARBITRARY_TIME, 0, EV_KEY, KEY_HOME, 1);
-        ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(
-                WithSource(AINPUT_SOURCE_KEYBOARD | AINPUT_SOURCE_DPAD | AINPUT_SOURCE_GAMEPAD)));
-        process(*mapper, ARBITRARY_TIME, 0, EV_KEY, KEY_HOME, 0);
-        ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(
-                WithSource(AINPUT_SOURCE_KEYBOARD | AINPUT_SOURCE_DPAD | AINPUT_SOURCE_GAMEPAD)));
-    }
-}
-
-// --- KeyboardInputMapperTest_ExternalAlphabeticDevice ---
-
-class KeyboardInputMapperTest_ExternalAlphabeticDevice : public InputMapperTest {
-protected:
-    void SetUp() override {
-        InputMapperTest::SetUp(DEVICE_CLASSES | InputDeviceClass::KEYBOARD |
-                               InputDeviceClass::ALPHAKEY | InputDeviceClass::EXTERNAL);
-    }
-};
-
-// --- KeyboardInputMapperTest_ExternalNonAlphabeticDevice ---
-
-class KeyboardInputMapperTest_ExternalNonAlphabeticDevice : public InputMapperTest {
-protected:
-    void SetUp() override {
-        InputMapperTest::SetUp(DEVICE_CLASSES | InputDeviceClass::KEYBOARD |
-                               InputDeviceClass::EXTERNAL);
-    }
-};
-
-TEST_F(KeyboardInputMapperTest_ExternalAlphabeticDevice, WakeBehavior_AlphabeticKeyboard) {
-    // For external devices, keys will trigger wake on key down. Media keys should also trigger
-    // wake if triggered from external devices.
-
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_HOME, 0, AKEYCODE_HOME, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_PLAY, 0, AKEYCODE_MEDIA_PLAY, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_PLAYPAUSE, 0, AKEYCODE_MEDIA_PLAY_PAUSE,
-                          POLICY_FLAG_WAKE);
-
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_HOME, 1);
-    NotifyKeyArgs args;
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
-
-    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_HOME, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(uint32_t(0), args.policyFlags);
-
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_PLAY, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
-
-    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_PLAY, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(uint32_t(0), args.policyFlags);
-
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_PLAYPAUSE, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
-
-    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_PLAYPAUSE, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
-}
-
-TEST_F(KeyboardInputMapperTest_ExternalNonAlphabeticDevice, WakeBehavior_NonAlphabeticKeyboard) {
-    // For external devices, keys will trigger wake on key down. Media keys should not trigger
-    // wake if triggered from external non-alphaebtic keyboard (e.g. headsets).
-
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_PLAY, 0, AKEYCODE_MEDIA_PLAY, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_PLAYPAUSE, 0, AKEYCODE_MEDIA_PLAY_PAUSE,
-                          POLICY_FLAG_WAKE);
-
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_PLAY, 1);
-    NotifyKeyArgs args;
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(uint32_t(0), args.policyFlags);
-
-    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_PLAY, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(uint32_t(0), args.policyFlags);
-
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_PLAYPAUSE, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
-
-    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_PLAYPAUSE, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
-}
-
-TEST_F(KeyboardInputMapperTest_ExternalAlphabeticDevice, DoNotWakeByDefaultBehavior) {
-    // Tv Remote key's wake behavior is prescribed by the keylayout file.
-
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_HOME, 0, AKEYCODE_HOME, POLICY_FLAG_WAKE);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_DOWN, 0, AKEYCODE_DPAD_DOWN, 0);
-    mFakeEventHub->addKey(EVENTHUB_ID, KEY_PLAY, 0, AKEYCODE_MEDIA_PLAY, POLICY_FLAG_WAKE);
-
-    addConfigurationProperty("keyboard.doNotWakeByDefault", "1");
-    KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
-
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_HOME, 1);
-    NotifyKeyArgs args;
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
-
-    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_HOME, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
-
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_DOWN, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(uint32_t(0), args.policyFlags);
-
-    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_DOWN, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(uint32_t(0), args.policyFlags);
-
-    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_PLAY, 1);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
-
-    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_PLAY, 0);
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
-    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
-}
-
 // --- TouchInputMapperTest ---
 
 class TouchInputMapperTest : public InputMapperTest {
diff --git a/services/inputflinger/tests/KeyboardInputMapper_test.cpp b/services/inputflinger/tests/KeyboardInputMapper_test.cpp
index bcc6062bf8..7474b2d119 100644
--- a/services/inputflinger/tests/KeyboardInputMapper_test.cpp
+++ b/services/inputflinger/tests/KeyboardInputMapper_test.cpp
@@ -16,10 +16,29 @@
 
 #include "KeyboardInputMapper.h"
 
+#include <cstdint>
+#include <list>
+#include <memory>
+#include <optional>
+#include <string>
+
+#include <android/input.h>
+#include <android/keycodes.h>
+#include <com_android_input_flags.h>
+#include <flag_macros.h>
+#include <ftl/flags.h>
 #include <gtest/gtest.h>
+#include <input/DisplayViewport.h>
+#include <input/Input.h>
+#include <input/InputDevice.h>
+#include <ui/LogicalDisplayId.h>
+#include <ui/Rotation.h>
 
+#include "EventHub.h"
 #include "InputMapperTest.h"
 #include "InterfaceMocks.h"
+#include "NotifyArgs.h"
+#include "TestConstants.h"
 #include "TestEventMatchers.h"
 
 #define TAG "KeyboardInputMapper_test"
@@ -34,6 +53,16 @@ using testing::Return;
 using testing::SetArgPointee;
 using testing::VariantWith;
 
+namespace {
+
+// Arbitrary display properties.
+constexpr ui::LogicalDisplayId DISPLAY_ID = ui::LogicalDisplayId::DEFAULT;
+constexpr int32_t DISPLAY_WIDTH = 480;
+constexpr int32_t DISPLAY_HEIGHT = 800;
+constexpr std::optional<uint8_t> NO_PORT = std::nullopt; // no physical port is specified
+
+} // namespace
+
 /**
  * Unit tests for KeyboardInputMapper.
  */
@@ -109,4 +138,1048 @@ TEST_F(KeyboardInputMapperUnitTest, RepeatEventsDiscarded) {
                                                              WithScanCode(KEY_0)))));
 }
 
+// TODO(b/283812079): convert the tests below to use InputMapperUnitTest.
+
+// --- KeyboardInputMapperTest ---
+
+class KeyboardInputMapperTest : public InputMapperTest {
+protected:
+    void SetUp() override {
+        InputMapperTest::SetUp(DEVICE_CLASSES | InputDeviceClass::KEYBOARD |
+                               InputDeviceClass::ALPHAKEY);
+    }
+    const std::string UNIQUE_ID = "local:0";
+    const KeyboardLayoutInfo DEVICE_KEYBOARD_LAYOUT_INFO = KeyboardLayoutInfo("en-US", "qwerty");
+    void prepareDisplay(ui::Rotation orientation);
+
+    void testDPadKeyRotation(KeyboardInputMapper& mapper, int32_t originalScanCode,
+                             int32_t originalKeyCode, int32_t rotatedKeyCode,
+                             ui::LogicalDisplayId displayId = ui::LogicalDisplayId::INVALID);
+};
+
+/* Similar to setDisplayInfoAndReconfigure, but pre-populates all parameters except for the
+ * orientation.
+ */
+void KeyboardInputMapperTest::prepareDisplay(ui::Rotation orientation) {
+    setDisplayInfoAndReconfigure(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT, orientation, UNIQUE_ID,
+                                 NO_PORT, ViewportType::INTERNAL);
+}
+
+void KeyboardInputMapperTest::testDPadKeyRotation(KeyboardInputMapper& mapper,
+                                                  int32_t originalScanCode, int32_t originalKeyCode,
+                                                  int32_t rotatedKeyCode,
+                                                  ui::LogicalDisplayId displayId) {
+    NotifyKeyArgs args;
+
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, originalScanCode, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, args.action);
+    ASSERT_EQ(originalScanCode, args.scanCode);
+    ASSERT_EQ(rotatedKeyCode, args.keyCode);
+    ASSERT_EQ(displayId, args.displayId);
+
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, originalScanCode, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(AKEY_EVENT_ACTION_UP, args.action);
+    ASSERT_EQ(originalScanCode, args.scanCode);
+    ASSERT_EQ(rotatedKeyCode, args.keyCode);
+    ASSERT_EQ(displayId, args.displayId);
+}
+
+TEST_F(KeyboardInputMapperTest, GetSources) {
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+
+    ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, mapper.getSources());
+}
+
+TEST_F(KeyboardInputMapperTest, Process_SimpleKeyPress) {
+    const int32_t USAGE_A = 0x070004;
+    const int32_t USAGE_UNKNOWN = 0x07ffff;
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_HOME, 0, AKEYCODE_HOME, POLICY_FLAG_WAKE);
+    mFakeEventHub->addKey(EVENTHUB_ID, 0, USAGE_A, AKEYCODE_A, POLICY_FLAG_WAKE);
+    mFakeEventHub->addKey(EVENTHUB_ID, 0, KEY_NUMLOCK, AKEYCODE_NUM_LOCK, POLICY_FLAG_WAKE);
+    mFakeEventHub->addKey(EVENTHUB_ID, 0, KEY_CAPSLOCK, AKEYCODE_CAPS_LOCK, POLICY_FLAG_WAKE);
+    mFakeEventHub->addKey(EVENTHUB_ID, 0, KEY_SCROLLLOCK, AKEYCODE_SCROLL_LOCK, POLICY_FLAG_WAKE);
+
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+    // Initial metastate is AMETA_NONE.
+    ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
+
+    // Key down by scan code.
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_HOME, 1);
+    NotifyKeyArgs args;
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(DEVICE_ID, args.deviceId);
+    ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
+    ASSERT_EQ(ARBITRARY_TIME, args.eventTime);
+    ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, args.action);
+    ASSERT_EQ(AKEYCODE_HOME, args.keyCode);
+    ASSERT_EQ(KEY_HOME, args.scanCode);
+    ASSERT_EQ(AMETA_NONE, args.metaState);
+    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM, args.flags);
+    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
+    ASSERT_EQ(ARBITRARY_TIME, args.downTime);
+
+    // Key up by scan code.
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_HOME, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(DEVICE_ID, args.deviceId);
+    ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
+    ASSERT_EQ(ARBITRARY_TIME + 1, args.eventTime);
+    ASSERT_EQ(AKEY_EVENT_ACTION_UP, args.action);
+    ASSERT_EQ(AKEYCODE_HOME, args.keyCode);
+    ASSERT_EQ(KEY_HOME, args.scanCode);
+    ASSERT_EQ(AMETA_NONE, args.metaState);
+    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM, args.flags);
+    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
+    ASSERT_EQ(ARBITRARY_TIME, args.downTime);
+
+    // Key down by usage code.
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_MSC, MSC_SCAN, USAGE_A);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, 0, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(DEVICE_ID, args.deviceId);
+    ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
+    ASSERT_EQ(ARBITRARY_TIME, args.eventTime);
+    ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, args.action);
+    ASSERT_EQ(AKEYCODE_A, args.keyCode);
+    ASSERT_EQ(0, args.scanCode);
+    ASSERT_EQ(AMETA_NONE, args.metaState);
+    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM, args.flags);
+    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
+    ASSERT_EQ(ARBITRARY_TIME, args.downTime);
+
+    // Key up by usage code.
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_MSC, MSC_SCAN, USAGE_A);
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, 0, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(DEVICE_ID, args.deviceId);
+    ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
+    ASSERT_EQ(ARBITRARY_TIME + 1, args.eventTime);
+    ASSERT_EQ(AKEY_EVENT_ACTION_UP, args.action);
+    ASSERT_EQ(AKEYCODE_A, args.keyCode);
+    ASSERT_EQ(0, args.scanCode);
+    ASSERT_EQ(AMETA_NONE, args.metaState);
+    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM, args.flags);
+    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
+    ASSERT_EQ(ARBITRARY_TIME, args.downTime);
+
+    // Key down with unknown scan code or usage code.
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_MSC, MSC_SCAN, USAGE_UNKNOWN);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UNKNOWN, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(DEVICE_ID, args.deviceId);
+    ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
+    ASSERT_EQ(ARBITRARY_TIME, args.eventTime);
+    ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, args.action);
+    ASSERT_EQ(0, args.keyCode);
+    ASSERT_EQ(KEY_UNKNOWN, args.scanCode);
+    ASSERT_EQ(AMETA_NONE, args.metaState);
+    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM, args.flags);
+    ASSERT_EQ(0U, args.policyFlags);
+    ASSERT_EQ(ARBITRARY_TIME, args.downTime);
+
+    // Key up with unknown scan code or usage code.
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_MSC, MSC_SCAN, USAGE_UNKNOWN);
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_UNKNOWN, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(DEVICE_ID, args.deviceId);
+    ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
+    ASSERT_EQ(ARBITRARY_TIME + 1, args.eventTime);
+    ASSERT_EQ(AKEY_EVENT_ACTION_UP, args.action);
+    ASSERT_EQ(0, args.keyCode);
+    ASSERT_EQ(KEY_UNKNOWN, args.scanCode);
+    ASSERT_EQ(AMETA_NONE, args.metaState);
+    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM, args.flags);
+    ASSERT_EQ(0U, args.policyFlags);
+    ASSERT_EQ(ARBITRARY_TIME, args.downTime);
+}
+
+TEST_F(KeyboardInputMapperTest, Process_KeyRemapping) {
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_A, 0, AKEYCODE_A, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_B, 0, AKEYCODE_B, 0);
+
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+
+    mFakeEventHub->setKeyRemapping(EVENTHUB_ID, {{AKEYCODE_A, AKEYCODE_B}});
+    // Key down by scan code.
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_A, 1);
+    NotifyKeyArgs args;
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(AKEYCODE_B, args.keyCode);
+
+    // Key up by scan code.
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_A, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(AKEYCODE_B, args.keyCode);
+}
+
+/**
+ * Ensure that the readTime is set to the time when the EV_KEY is received.
+ */
+TEST_F(KeyboardInputMapperTest, Process_SendsReadTime) {
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_HOME, 0, AKEYCODE_HOME, POLICY_FLAG_WAKE);
+
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+    NotifyKeyArgs args;
+
+    // Key down
+    process(mapper, ARBITRARY_TIME, /*readTime=*/12, EV_KEY, KEY_HOME, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(12, args.readTime);
+
+    // Key up
+    process(mapper, ARBITRARY_TIME, /*readTime=*/15, EV_KEY, KEY_HOME, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(15, args.readTime);
+}
+
+TEST_F(KeyboardInputMapperTest, Process_ShouldUpdateMetaState) {
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_LEFTSHIFT, 0, AKEYCODE_SHIFT_LEFT, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_A, 0, AKEYCODE_A, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, 0, KEY_NUMLOCK, AKEYCODE_NUM_LOCK, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, 0, KEY_CAPSLOCK, AKEYCODE_CAPS_LOCK, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, 0, KEY_SCROLLLOCK, AKEYCODE_SCROLL_LOCK, 0);
+
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+
+    // Initial metastate is AMETA_NONE.
+    ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
+
+    // Metakey down.
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_LEFTSHIFT, 1);
+    NotifyKeyArgs args;
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_ON, args.metaState);
+    ASSERT_EQ(AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_ON, mapper.getMetaState());
+    ASSERT_NO_FATAL_FAILURE(mReader->getContext()->assertUpdateGlobalMetaStateWasCalled());
+
+    // Key down.
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_A, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_ON, args.metaState);
+    ASSERT_EQ(AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_ON, mapper.getMetaState());
+
+    // Key up.
+    process(mapper, ARBITRARY_TIME + 2, READ_TIME, EV_KEY, KEY_A, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_ON, args.metaState);
+    ASSERT_EQ(AMETA_SHIFT_LEFT_ON | AMETA_SHIFT_ON, mapper.getMetaState());
+
+    // Metakey up.
+    process(mapper, ARBITRARY_TIME + 3, READ_TIME, EV_KEY, KEY_LEFTSHIFT, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(AMETA_NONE, args.metaState);
+    ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
+    ASSERT_NO_FATAL_FAILURE(mReader->getContext()->assertUpdateGlobalMetaStateWasCalled());
+}
+
+TEST_F(KeyboardInputMapperTest, Process_WhenNotOrientationAware_ShouldNotRotateDPad) {
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_UP, 0, AKEYCODE_DPAD_UP, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_RIGHT, 0, AKEYCODE_DPAD_RIGHT, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_DOWN, 0, AKEYCODE_DPAD_DOWN, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_LEFT, 0, AKEYCODE_DPAD_LEFT, 0);
+
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+
+    prepareDisplay(ui::ROTATION_90);
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper,
+                                                KEY_UP, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_UP));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper,
+                                                KEY_RIGHT, AKEYCODE_DPAD_RIGHT, AKEYCODE_DPAD_RIGHT));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper,
+                                                KEY_DOWN, AKEYCODE_DPAD_DOWN, AKEYCODE_DPAD_DOWN));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper,
+                                                KEY_LEFT, AKEYCODE_DPAD_LEFT, AKEYCODE_DPAD_LEFT));
+}
+
+TEST_F(KeyboardInputMapperTest, Process_WhenOrientationAware_ShouldRotateDPad) {
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_UP, 0, AKEYCODE_DPAD_UP, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_RIGHT, 0, AKEYCODE_DPAD_RIGHT, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_DOWN, 0, AKEYCODE_DPAD_DOWN, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_LEFT, 0, AKEYCODE_DPAD_LEFT, 0);
+
+    addConfigurationProperty("keyboard.orientationAware", "1");
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+
+    prepareDisplay(ui::ROTATION_0);
+    ASSERT_NO_FATAL_FAILURE(
+            testDPadKeyRotation(mapper, KEY_UP, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_UP, DISPLAY_ID));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_RIGHT, AKEYCODE_DPAD_RIGHT,
+                                                AKEYCODE_DPAD_RIGHT, DISPLAY_ID));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_DOWN, AKEYCODE_DPAD_DOWN,
+                                                AKEYCODE_DPAD_DOWN, DISPLAY_ID));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_LEFT, AKEYCODE_DPAD_LEFT,
+                                                AKEYCODE_DPAD_LEFT, DISPLAY_ID));
+
+    clearViewports();
+    prepareDisplay(ui::ROTATION_90);
+    ASSERT_NO_FATAL_FAILURE(
+            testDPadKeyRotation(mapper, KEY_UP, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_LEFT, DISPLAY_ID));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_RIGHT, AKEYCODE_DPAD_RIGHT,
+                                                AKEYCODE_DPAD_UP, DISPLAY_ID));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_DOWN, AKEYCODE_DPAD_DOWN,
+                                                AKEYCODE_DPAD_RIGHT, DISPLAY_ID));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_LEFT, AKEYCODE_DPAD_LEFT,
+                                                AKEYCODE_DPAD_DOWN, DISPLAY_ID));
+
+    clearViewports();
+    prepareDisplay(ui::ROTATION_180);
+    ASSERT_NO_FATAL_FAILURE(
+            testDPadKeyRotation(mapper, KEY_UP, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_DOWN, DISPLAY_ID));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_RIGHT, AKEYCODE_DPAD_RIGHT,
+                                                AKEYCODE_DPAD_LEFT, DISPLAY_ID));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_DOWN, AKEYCODE_DPAD_DOWN,
+                                                AKEYCODE_DPAD_UP, DISPLAY_ID));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_LEFT, AKEYCODE_DPAD_LEFT,
+                                                AKEYCODE_DPAD_RIGHT, DISPLAY_ID));
+
+    clearViewports();
+    prepareDisplay(ui::ROTATION_270);
+    ASSERT_NO_FATAL_FAILURE(
+            testDPadKeyRotation(mapper, KEY_UP, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_RIGHT, DISPLAY_ID));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_RIGHT, AKEYCODE_DPAD_RIGHT,
+                                                AKEYCODE_DPAD_DOWN, DISPLAY_ID));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_DOWN, AKEYCODE_DPAD_DOWN,
+                                                AKEYCODE_DPAD_LEFT, DISPLAY_ID));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_LEFT, AKEYCODE_DPAD_LEFT,
+                                                AKEYCODE_DPAD_UP, DISPLAY_ID));
+
+    // Special case: if orientation changes while key is down, we still emit the same keycode
+    // in the key up as we did in the key down.
+    NotifyKeyArgs args;
+    clearViewports();
+    prepareDisplay(ui::ROTATION_270);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, args.action);
+    ASSERT_EQ(KEY_UP, args.scanCode);
+    ASSERT_EQ(AKEYCODE_DPAD_RIGHT, args.keyCode);
+
+    clearViewports();
+    prepareDisplay(ui::ROTATION_180);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(AKEY_EVENT_ACTION_UP, args.action);
+    ASSERT_EQ(KEY_UP, args.scanCode);
+    ASSERT_EQ(AKEYCODE_DPAD_RIGHT, args.keyCode);
+}
+
+TEST_F(KeyboardInputMapperTest, DisplayIdConfigurationChange_NotOrientationAware) {
+    // If the keyboard is not orientation aware,
+    // key events should not be associated with a specific display id
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_UP, 0, AKEYCODE_DPAD_UP, 0);
+
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+    NotifyKeyArgs args;
+
+    // Display id should be LogicalDisplayId::INVALID without any display configuration.
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(ui::LogicalDisplayId::INVALID, args.displayId);
+
+    prepareDisplay(ui::ROTATION_0);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(ui::LogicalDisplayId::INVALID, args.displayId);
+}
+
+TEST_F(KeyboardInputMapperTest, DisplayIdConfigurationChange_OrientationAware) {
+    // If the keyboard is orientation aware,
+    // key events should be associated with the internal viewport
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_UP, 0, AKEYCODE_DPAD_UP, 0);
+
+    addConfigurationProperty("keyboard.orientationAware", "1");
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+    NotifyKeyArgs args;
+
+    // Display id should be LogicalDisplayId::INVALID without any display configuration.
+    // ^--- already checked by the previous test
+
+    setDisplayInfoAndReconfigure(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT, ui::ROTATION_0,
+                                 UNIQUE_ID, NO_PORT, ViewportType::INTERNAL);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(DISPLAY_ID, args.displayId);
+
+    constexpr ui::LogicalDisplayId newDisplayId = ui::LogicalDisplayId{2};
+    clearViewports();
+    setDisplayInfoAndReconfigure(newDisplayId, DISPLAY_WIDTH, DISPLAY_HEIGHT, ui::ROTATION_0,
+                                 UNIQUE_ID, NO_PORT, ViewportType::INTERNAL);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_UP, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(newDisplayId, args.displayId);
+}
+
+TEST_F(KeyboardInputMapperTest, GetKeyCodeState) {
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+
+    mFakeEventHub->setKeyCodeState(EVENTHUB_ID, AKEYCODE_A, 1);
+    ASSERT_EQ(1, mapper.getKeyCodeState(AINPUT_SOURCE_ANY, AKEYCODE_A));
+
+    mFakeEventHub->setKeyCodeState(EVENTHUB_ID, AKEYCODE_A, 0);
+    ASSERT_EQ(0, mapper.getKeyCodeState(AINPUT_SOURCE_ANY, AKEYCODE_A));
+}
+
+TEST_F(KeyboardInputMapperTest, GetKeyCodeForKeyLocation) {
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+
+    mFakeEventHub->addKeyCodeMapping(EVENTHUB_ID, AKEYCODE_Y, AKEYCODE_Z);
+    ASSERT_EQ(AKEYCODE_Z, mapper.getKeyCodeForKeyLocation(AKEYCODE_Y))
+                                << "If a mapping is available, the result is equal to the mapping";
+
+    ASSERT_EQ(AKEYCODE_A, mapper.getKeyCodeForKeyLocation(AKEYCODE_A))
+                                << "If no mapping is available, the result is the key location";
+}
+
+TEST_F(KeyboardInputMapperTest, GetScanCodeState) {
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+
+    mFakeEventHub->setScanCodeState(EVENTHUB_ID, KEY_A, 1);
+    ASSERT_EQ(1, mapper.getScanCodeState(AINPUT_SOURCE_ANY, KEY_A));
+
+    mFakeEventHub->setScanCodeState(EVENTHUB_ID, KEY_A, 0);
+    ASSERT_EQ(0, mapper.getScanCodeState(AINPUT_SOURCE_ANY, KEY_A));
+}
+
+TEST_F(KeyboardInputMapperTest, MarkSupportedKeyCodes) {
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_A, 0, AKEYCODE_A, 0);
+
+    uint8_t flags[2] = { 0, 0 };
+    ASSERT_TRUE(mapper.markSupportedKeyCodes(AINPUT_SOURCE_ANY, {AKEYCODE_A, AKEYCODE_B}, flags));
+    ASSERT_TRUE(flags[0]);
+    ASSERT_FALSE(flags[1]);
+}
+
+TEST_F(KeyboardInputMapperTest, Process_LockedKeysShouldToggleMetaStateAndLeds) {
+    mFakeEventHub->addLed(EVENTHUB_ID, LED_CAPSL, true /*initially on*/);
+    mFakeEventHub->addLed(EVENTHUB_ID, LED_NUML, false /*initially off*/);
+    mFakeEventHub->addLed(EVENTHUB_ID, LED_SCROLLL, false /*initially off*/);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_CAPSLOCK, 0, AKEYCODE_CAPS_LOCK, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_NUMLOCK, 0, AKEYCODE_NUM_LOCK, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_SCROLLLOCK, 0, AKEYCODE_SCROLL_LOCK, 0);
+
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+    // Initial metastate is AMETA_NONE.
+    ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
+
+    // Initialization should have turned all of the lights off.
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
+
+    // Toggle caps lock on.
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 0);
+    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
+    ASSERT_EQ(AMETA_CAPS_LOCK_ON, mapper.getMetaState());
+
+    // Toggle num lock on.
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 0);
+    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
+    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
+    ASSERT_EQ(AMETA_CAPS_LOCK_ON | AMETA_NUM_LOCK_ON, mapper.getMetaState());
+
+    // Toggle caps lock off.
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 0);
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
+    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
+    ASSERT_EQ(AMETA_NUM_LOCK_ON, mapper.getMetaState());
+
+    // Toggle scroll lock on.
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 0);
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
+    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
+    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
+    ASSERT_EQ(AMETA_NUM_LOCK_ON | AMETA_SCROLL_LOCK_ON, mapper.getMetaState());
+
+    // Toggle num lock off.
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 0);
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
+    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
+    ASSERT_EQ(AMETA_SCROLL_LOCK_ON, mapper.getMetaState());
+
+    // Toggle scroll lock off.
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 0);
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
+    ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
+}
+
+TEST_F(KeyboardInputMapperTest, Configure_AssignsDisplayPort) {
+    // keyboard 1.
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_UP, 0, AKEYCODE_DPAD_UP, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_RIGHT, 0, AKEYCODE_DPAD_RIGHT, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_DOWN, 0, AKEYCODE_DPAD_DOWN, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_LEFT, 0, AKEYCODE_DPAD_LEFT, 0);
+
+    // keyboard 2.
+    const std::string USB2 = "USB2";
+    const std::string DEVICE_NAME2 = "KEYBOARD2";
+    constexpr int32_t SECOND_DEVICE_ID = DEVICE_ID + 1;
+    constexpr int32_t SECOND_EVENTHUB_ID = EVENTHUB_ID + 1;
+    std::shared_ptr<InputDevice> device2 =
+            newDevice(SECOND_DEVICE_ID, DEVICE_NAME2, USB2, SECOND_EVENTHUB_ID,
+                      ftl::Flags<InputDeviceClass>(0));
+
+    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_UP, 0, AKEYCODE_DPAD_UP, 0);
+    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_RIGHT, 0, AKEYCODE_DPAD_RIGHT, 0);
+    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_DOWN, 0, AKEYCODE_DPAD_DOWN, 0);
+    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_LEFT, 0, AKEYCODE_DPAD_LEFT, 0);
+
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+
+    device2->addEmptyEventHubDevice(SECOND_EVENTHUB_ID);
+    KeyboardInputMapper& mapper2 =
+            device2->constructAndAddMapper<KeyboardInputMapper>(SECOND_EVENTHUB_ID,
+                                                                mFakePolicy
+                                                                        ->getReaderConfiguration(),
+                                                                AINPUT_SOURCE_KEYBOARD);
+    std::list<NotifyArgs> unused =
+            device2->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+                    /*changes=*/{});
+    unused += device2->reset(ARBITRARY_TIME);
+
+    // Prepared displays and associated info.
+    constexpr uint8_t hdmi1 = 0;
+    constexpr uint8_t hdmi2 = 1;
+    const std::string SECONDARY_UNIQUE_ID = "local:1";
+
+    mFakePolicy->addInputPortAssociation(DEVICE_LOCATION, hdmi1);
+    mFakePolicy->addInputPortAssociation(USB2, hdmi2);
+
+    // No associated display viewport found, should disable the device.
+    unused += device2->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+                                 InputReaderConfiguration::Change::DISPLAY_INFO);
+    ASSERT_FALSE(device2->isEnabled());
+
+    // Prepare second display.
+    constexpr ui::LogicalDisplayId newDisplayId = ui::LogicalDisplayId{2};
+    setDisplayInfoAndReconfigure(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT, ui::ROTATION_0,
+                                 UNIQUE_ID, hdmi1, ViewportType::INTERNAL);
+    setDisplayInfoAndReconfigure(newDisplayId, DISPLAY_WIDTH, DISPLAY_HEIGHT, ui::ROTATION_0,
+                                 SECONDARY_UNIQUE_ID, hdmi2, ViewportType::EXTERNAL);
+    // Default device will reconfigure above, need additional reconfiguration for another device.
+    unused += device2->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+                                 InputReaderConfiguration::Change::DISPLAY_INFO);
+
+    // Device should be enabled after the associated display is found.
+    ASSERT_TRUE(mDevice->isEnabled());
+    ASSERT_TRUE(device2->isEnabled());
+
+    // Test pad key events
+    ASSERT_NO_FATAL_FAILURE(
+            testDPadKeyRotation(mapper, KEY_UP, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_UP, DISPLAY_ID));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_RIGHT, AKEYCODE_DPAD_RIGHT,
+                                                AKEYCODE_DPAD_RIGHT, DISPLAY_ID));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_DOWN, AKEYCODE_DPAD_DOWN,
+                                                AKEYCODE_DPAD_DOWN, DISPLAY_ID));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper, KEY_LEFT, AKEYCODE_DPAD_LEFT,
+                                                AKEYCODE_DPAD_LEFT, DISPLAY_ID));
+
+    ASSERT_NO_FATAL_FAILURE(
+            testDPadKeyRotation(mapper2, KEY_UP, AKEYCODE_DPAD_UP, AKEYCODE_DPAD_UP, newDisplayId));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper2, KEY_RIGHT, AKEYCODE_DPAD_RIGHT,
+                                                AKEYCODE_DPAD_RIGHT, newDisplayId));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper2, KEY_DOWN, AKEYCODE_DPAD_DOWN,
+                                                AKEYCODE_DPAD_DOWN, newDisplayId));
+    ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper2, KEY_LEFT, AKEYCODE_DPAD_LEFT,
+                                                AKEYCODE_DPAD_LEFT, newDisplayId));
+}
+
+TEST_F(KeyboardInputMapperTest, Process_LockedKeysShouldToggleAfterReattach) {
+    mFakeEventHub->addLed(EVENTHUB_ID, LED_CAPSL, true /*initially on*/);
+    mFakeEventHub->addLed(EVENTHUB_ID, LED_NUML, false /*initially off*/);
+    mFakeEventHub->addLed(EVENTHUB_ID, LED_SCROLLL, false /*initially off*/);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_CAPSLOCK, 0, AKEYCODE_CAPS_LOCK, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_NUMLOCK, 0, AKEYCODE_NUM_LOCK, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_SCROLLLOCK, 0, AKEYCODE_SCROLL_LOCK, 0);
+
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+    // Initial metastate is AMETA_NONE.
+    ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
+
+    // Initialization should have turned all of the lights off.
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
+
+    // Toggle caps lock on.
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 0);
+    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
+    ASSERT_EQ(AMETA_CAPS_LOCK_ON, mapper.getMetaState());
+
+    // Toggle num lock on.
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 0);
+    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
+    ASSERT_EQ(AMETA_CAPS_LOCK_ON | AMETA_NUM_LOCK_ON, mapper.getMetaState());
+
+    // Toggle scroll lock on.
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 1);
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 0);
+    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
+    ASSERT_EQ(AMETA_CAPS_LOCK_ON | AMETA_NUM_LOCK_ON | AMETA_SCROLL_LOCK_ON, mapper.getMetaState());
+
+    mFakeEventHub->removeDevice(EVENTHUB_ID);
+    mReader->loopOnce();
+
+    // keyboard 2 should default toggle keys.
+    const std::string USB2 = "USB2";
+    const std::string DEVICE_NAME2 = "KEYBOARD2";
+    constexpr int32_t SECOND_DEVICE_ID = DEVICE_ID + 1;
+    constexpr int32_t SECOND_EVENTHUB_ID = EVENTHUB_ID + 1;
+    std::shared_ptr<InputDevice> device2 =
+            newDevice(SECOND_DEVICE_ID, DEVICE_NAME2, USB2, SECOND_EVENTHUB_ID,
+                      ftl::Flags<InputDeviceClass>(0));
+    mFakeEventHub->addLed(SECOND_EVENTHUB_ID, LED_CAPSL, true /*initially on*/);
+    mFakeEventHub->addLed(SECOND_EVENTHUB_ID, LED_NUML, false /*initially off*/);
+    mFakeEventHub->addLed(SECOND_EVENTHUB_ID, LED_SCROLLL, false /*initially off*/);
+    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_CAPSLOCK, 0, AKEYCODE_CAPS_LOCK, 0);
+    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_NUMLOCK, 0, AKEYCODE_NUM_LOCK, 0);
+    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_SCROLLLOCK, 0, AKEYCODE_SCROLL_LOCK, 0);
+
+    device2->addEmptyEventHubDevice(SECOND_EVENTHUB_ID);
+    KeyboardInputMapper& mapper2 =
+            device2->constructAndAddMapper<KeyboardInputMapper>(SECOND_EVENTHUB_ID,
+                                                                mFakePolicy
+                                                                        ->getReaderConfiguration(),
+                                                                AINPUT_SOURCE_KEYBOARD);
+    std::list<NotifyArgs> unused =
+            device2->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+                    /*changes=*/{});
+    unused += device2->reset(ARBITRARY_TIME);
+
+    ASSERT_TRUE(mFakeEventHub->getLedState(SECOND_EVENTHUB_ID, LED_CAPSL));
+    ASSERT_TRUE(mFakeEventHub->getLedState(SECOND_EVENTHUB_ID, LED_NUML));
+    ASSERT_TRUE(mFakeEventHub->getLedState(SECOND_EVENTHUB_ID, LED_SCROLLL));
+    ASSERT_EQ(AMETA_CAPS_LOCK_ON | AMETA_NUM_LOCK_ON | AMETA_SCROLL_LOCK_ON,
+              mapper2.getMetaState());
+}
+
+TEST_F(KeyboardInputMapperTest, Process_toggleCapsLockState) {
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_CAPSLOCK, 0, AKEYCODE_CAPS_LOCK, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_NUMLOCK, 0, AKEYCODE_NUM_LOCK, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_SCROLLLOCK, 0, AKEYCODE_SCROLL_LOCK, 0);
+
+    // Suppose we have two mappers. (DPAD + KEYBOARD)
+    constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_DPAD);
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+    // Initial metastate is AMETA_NONE.
+    ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
+
+    mReader->toggleCapsLockState(DEVICE_ID);
+    ASSERT_EQ(AMETA_CAPS_LOCK_ON, mapper.getMetaState());
+}
+
+TEST_F(KeyboardInputMapperTest, Process_LockedKeysShouldToggleInMultiDevices) {
+    // keyboard 1.
+    mFakeEventHub->addLed(EVENTHUB_ID, LED_CAPSL, true /*initially on*/);
+    mFakeEventHub->addLed(EVENTHUB_ID, LED_NUML, false /*initially off*/);
+    mFakeEventHub->addLed(EVENTHUB_ID, LED_SCROLLL, false /*initially off*/);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_CAPSLOCK, 0, AKEYCODE_CAPS_LOCK, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_NUMLOCK, 0, AKEYCODE_NUM_LOCK, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_SCROLLLOCK, 0, AKEYCODE_SCROLL_LOCK, 0);
+
+    KeyboardInputMapper& mapper1 =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+
+    // keyboard 2.
+    const std::string USB2 = "USB2";
+    const std::string DEVICE_NAME2 = "KEYBOARD2";
+    constexpr int32_t SECOND_DEVICE_ID = DEVICE_ID + 1;
+    constexpr int32_t SECOND_EVENTHUB_ID = EVENTHUB_ID + 1;
+    std::shared_ptr<InputDevice> device2 =
+            newDevice(SECOND_DEVICE_ID, DEVICE_NAME2, USB2, SECOND_EVENTHUB_ID,
+                      ftl::Flags<InputDeviceClass>(0));
+    mFakeEventHub->addLed(SECOND_EVENTHUB_ID, LED_CAPSL, true /*initially on*/);
+    mFakeEventHub->addLed(SECOND_EVENTHUB_ID, LED_NUML, false /*initially off*/);
+    mFakeEventHub->addLed(SECOND_EVENTHUB_ID, LED_SCROLLL, false /*initially off*/);
+    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_CAPSLOCK, 0, AKEYCODE_CAPS_LOCK, 0);
+    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_NUMLOCK, 0, AKEYCODE_NUM_LOCK, 0);
+    mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_SCROLLLOCK, 0, AKEYCODE_SCROLL_LOCK, 0);
+
+    device2->addEmptyEventHubDevice(SECOND_EVENTHUB_ID);
+    KeyboardInputMapper& mapper2 =
+            device2->constructAndAddMapper<KeyboardInputMapper>(SECOND_EVENTHUB_ID,
+                                                                mFakePolicy
+                                                                        ->getReaderConfiguration(),
+                                                                AINPUT_SOURCE_KEYBOARD);
+    std::list<NotifyArgs> unused =
+            device2->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+                    /*changes=*/{});
+    unused += device2->reset(ARBITRARY_TIME);
+
+    // Initial metastate is AMETA_NONE.
+    ASSERT_EQ(AMETA_NONE, mapper1.getMetaState());
+    ASSERT_EQ(AMETA_NONE, mapper2.getMetaState());
+
+    // Toggle num lock on and off.
+    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 1);
+    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 0);
+    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
+    ASSERT_EQ(AMETA_NUM_LOCK_ON, mapper1.getMetaState());
+    ASSERT_EQ(AMETA_NUM_LOCK_ON, mapper2.getMetaState());
+
+    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 1);
+    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_NUMLOCK, 0);
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_NUML));
+    ASSERT_EQ(AMETA_NONE, mapper1.getMetaState());
+    ASSERT_EQ(AMETA_NONE, mapper2.getMetaState());
+
+    // Toggle caps lock on and off.
+    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 1);
+    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 0);
+    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
+    ASSERT_EQ(AMETA_CAPS_LOCK_ON, mapper1.getMetaState());
+    ASSERT_EQ(AMETA_CAPS_LOCK_ON, mapper2.getMetaState());
+
+    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 1);
+    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_CAPSLOCK, 0);
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_CAPSL));
+    ASSERT_EQ(AMETA_NONE, mapper1.getMetaState());
+    ASSERT_EQ(AMETA_NONE, mapper2.getMetaState());
+
+    // Toggle scroll lock on and off.
+    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 1);
+    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 0);
+    ASSERT_TRUE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
+    ASSERT_EQ(AMETA_SCROLL_LOCK_ON, mapper1.getMetaState());
+    ASSERT_EQ(AMETA_SCROLL_LOCK_ON, mapper2.getMetaState());
+
+    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 1);
+    process(mapper1, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_SCROLLLOCK, 0);
+    ASSERT_FALSE(mFakeEventHub->getLedState(EVENTHUB_ID, LED_SCROLLL));
+    ASSERT_EQ(AMETA_NONE, mapper1.getMetaState());
+    ASSERT_EQ(AMETA_NONE, mapper2.getMetaState());
+}
+
+TEST_F(KeyboardInputMapperTest, Process_DisabledDevice) {
+    const int32_t USAGE_A = 0x070004;
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_HOME, 0, AKEYCODE_HOME, POLICY_FLAG_WAKE);
+    mFakeEventHub->addKey(EVENTHUB_ID, 0, USAGE_A, AKEYCODE_A, POLICY_FLAG_WAKE);
+
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+    // Key down by scan code.
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_HOME, 1);
+    NotifyKeyArgs args;
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(DEVICE_ID, args.deviceId);
+    ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, args.source);
+    ASSERT_EQ(ARBITRARY_TIME, args.eventTime);
+    ASSERT_EQ(AKEY_EVENT_ACTION_DOWN, args.action);
+    ASSERT_EQ(AKEYCODE_HOME, args.keyCode);
+    ASSERT_EQ(KEY_HOME, args.scanCode);
+    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM, args.flags);
+
+    // Disable device, it should synthesize cancellation events for down events.
+    mFakePolicy->addDisabledDevice(DEVICE_ID);
+    configureDevice(InputReaderConfiguration::Change::ENABLED_STATE);
+
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(AKEY_EVENT_ACTION_UP, args.action);
+    ASSERT_EQ(AKEYCODE_HOME, args.keyCode);
+    ASSERT_EQ(KEY_HOME, args.scanCode);
+    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_CANCELED, args.flags);
+}
+
+TEST_F(KeyboardInputMapperTest, Configure_AssignKeyboardLayoutInfo) {
+    constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+    std::list<NotifyArgs> unused =
+            mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+                    /*changes=*/{});
+
+    uint32_t generation = mReader->getContext()->getGeneration();
+    mFakePolicy->addKeyboardLayoutAssociation(DEVICE_LOCATION, DEVICE_KEYBOARD_LAYOUT_INFO);
+
+    unused += mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+                                 InputReaderConfiguration::Change::KEYBOARD_LAYOUT_ASSOCIATION);
+
+    InputDeviceInfo deviceInfo = mDevice->getDeviceInfo();
+    ASSERT_EQ(DEVICE_KEYBOARD_LAYOUT_INFO.languageTag,
+              deviceInfo.getKeyboardLayoutInfo()->languageTag);
+    ASSERT_EQ(DEVICE_KEYBOARD_LAYOUT_INFO.layoutType,
+              deviceInfo.getKeyboardLayoutInfo()->layoutType);
+    ASSERT_TRUE(mReader->getContext()->getGeneration() != generation);
+
+    // Call change layout association with the same values: Generation shouldn't change
+    generation = mReader->getContext()->getGeneration();
+    mFakePolicy->addKeyboardLayoutAssociation(DEVICE_LOCATION, DEVICE_KEYBOARD_LAYOUT_INFO);
+    unused += mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
+                                 InputReaderConfiguration::Change::KEYBOARD_LAYOUT_ASSOCIATION);
+    ASSERT_TRUE(mReader->getContext()->getGeneration() == generation);
+}
+
+TEST_F(KeyboardInputMapperTest, LayoutInfoCorrectlyMapped) {
+    mFakeEventHub->setRawLayoutInfo(EVENTHUB_ID,
+                                    RawLayoutInfo{.languageTag = "en", .layoutType = "extended"});
+
+    // Configuration
+    constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+    InputReaderConfiguration config;
+    std::list<NotifyArgs> unused = mDevice->configure(ARBITRARY_TIME, config, /*changes=*/{});
+
+    ASSERT_EQ("en", mDevice->getDeviceInfo().getKeyboardLayoutInfo()->languageTag);
+    ASSERT_EQ("extended", mDevice->getDeviceInfo().getKeyboardLayoutInfo()->layoutType);
+}
+
+TEST_F(KeyboardInputMapperTest, Process_GesureEventToSetFlagKeepTouchMode) {
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_LEFT, 0, AKEYCODE_DPAD_LEFT, POLICY_FLAG_GESTURE);
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+    NotifyKeyArgs args;
+
+    // Key down
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_LEFT, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_KEEP_TOUCH_MODE, args.flags);
+}
+
+TEST_F_WITH_FLAGS(KeyboardInputMapperTest, WakeBehavior_AlphabeticKeyboard,
+        REQUIRES_FLAGS_ENABLED(ACONFIG_FLAG(com::android::input::flags,
+                                            enable_alphabetic_keyboard_wake))) {
+    // For internal alphabetic devices, keys will trigger wake on key down.
+
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_A, 0, AKEYCODE_A, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_HOME, 0, AKEYCODE_HOME, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_PLAYPAUSE, 0, AKEYCODE_MEDIA_PLAY_PAUSE, 0);
+
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_A, 1);
+    NotifyKeyArgs args;
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
+
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_A, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(uint32_t(0), args.policyFlags);
+
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_HOME, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
+
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_HOME, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(uint32_t(0), args.policyFlags);
+
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_PLAYPAUSE, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
+
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_PLAYPAUSE, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(uint32_t(0), args.policyFlags);
+}
+
+/**
+ * When there is more than one KeyboardInputMapper for an InputDevice, each mapper should produce
+ * events that use the shared keyboard source across all mappers. This is to ensure that each
+ * input device generates key events in a consistent manner, regardless of which mapper produces
+ * the event.
+ */
+TEST_F(KeyboardInputMapperTest, UsesSharedKeyboardSource) {
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_HOME, 0, AKEYCODE_HOME, POLICY_FLAG_WAKE);
+
+    // Add a mapper with SOURCE_KEYBOARD
+    KeyboardInputMapper& keyboardMapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+
+    process(keyboardMapper, ARBITRARY_TIME, 0, EV_KEY, KEY_HOME, 1);
+    ASSERT_NO_FATAL_FAILURE(
+            mFakeListener->assertNotifyKeyWasCalled(WithSource(AINPUT_SOURCE_KEYBOARD)));
+    process(keyboardMapper, ARBITRARY_TIME, 0, EV_KEY, KEY_HOME, 0);
+    ASSERT_NO_FATAL_FAILURE(
+            mFakeListener->assertNotifyKeyWasCalled(WithSource(AINPUT_SOURCE_KEYBOARD)));
+
+    // Add a mapper with SOURCE_DPAD
+    KeyboardInputMapper& dpadMapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_DPAD);
+    for (auto* mapper : {&keyboardMapper, &dpadMapper}) {
+        process(*mapper, ARBITRARY_TIME, 0, EV_KEY, KEY_HOME, 1);
+        ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(
+                WithSource(AINPUT_SOURCE_KEYBOARD | AINPUT_SOURCE_DPAD)));
+        process(*mapper, ARBITRARY_TIME, 0, EV_KEY, KEY_HOME, 0);
+        ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(
+                WithSource(AINPUT_SOURCE_KEYBOARD | AINPUT_SOURCE_DPAD)));
+    }
+
+    // Add a mapper with SOURCE_GAMEPAD
+    KeyboardInputMapper& gamepadMapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_GAMEPAD);
+    for (auto* mapper : {&keyboardMapper, &dpadMapper, &gamepadMapper}) {
+        process(*mapper, ARBITRARY_TIME, 0, EV_KEY, KEY_HOME, 1);
+        ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(
+                WithSource(AINPUT_SOURCE_KEYBOARD | AINPUT_SOURCE_DPAD | AINPUT_SOURCE_GAMEPAD)));
+        process(*mapper, ARBITRARY_TIME, 0, EV_KEY, KEY_HOME, 0);
+        ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(
+                WithSource(AINPUT_SOURCE_KEYBOARD | AINPUT_SOURCE_DPAD | AINPUT_SOURCE_GAMEPAD)));
+    }
+}
+
+// --- KeyboardInputMapperTest_ExternalAlphabeticDevice ---
+
+class KeyboardInputMapperTest_ExternalAlphabeticDevice : public InputMapperTest {
+protected:
+    void SetUp() override {
+        InputMapperTest::SetUp(DEVICE_CLASSES | InputDeviceClass::KEYBOARD |
+                               InputDeviceClass::ALPHAKEY | InputDeviceClass::EXTERNAL);
+    }
+};
+
+// --- KeyboardInputMapperTest_ExternalNonAlphabeticDevice ---
+
+class KeyboardInputMapperTest_ExternalNonAlphabeticDevice : public InputMapperTest {
+protected:
+    void SetUp() override {
+        InputMapperTest::SetUp(DEVICE_CLASSES | InputDeviceClass::KEYBOARD |
+                               InputDeviceClass::EXTERNAL);
+    }
+};
+
+TEST_F(KeyboardInputMapperTest_ExternalAlphabeticDevice, WakeBehavior_AlphabeticKeyboard) {
+    // For external devices, keys will trigger wake on key down. Media keys should also trigger
+    // wake if triggered from external devices.
+
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_HOME, 0, AKEYCODE_HOME, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_PLAY, 0, AKEYCODE_MEDIA_PLAY, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_PLAYPAUSE, 0, AKEYCODE_MEDIA_PLAY_PAUSE,
+                          POLICY_FLAG_WAKE);
+
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_HOME, 1);
+    NotifyKeyArgs args;
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
+
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_HOME, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(uint32_t(0), args.policyFlags);
+
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_PLAY, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
+
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_PLAY, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(uint32_t(0), args.policyFlags);
+
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_PLAYPAUSE, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
+
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_PLAYPAUSE, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
+}
+
+TEST_F(KeyboardInputMapperTest_ExternalNonAlphabeticDevice, WakeBehavior_NonAlphabeticKeyboard) {
+    // For external devices, keys will trigger wake on key down. Media keys should not trigger
+    // wake if triggered from external non-alphaebtic keyboard (e.g. headsets).
+
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_PLAY, 0, AKEYCODE_MEDIA_PLAY, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_PLAYPAUSE, 0, AKEYCODE_MEDIA_PLAY_PAUSE,
+                          POLICY_FLAG_WAKE);
+
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_PLAY, 1);
+    NotifyKeyArgs args;
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(uint32_t(0), args.policyFlags);
+
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_PLAY, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(uint32_t(0), args.policyFlags);
+
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_PLAYPAUSE, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
+
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_PLAYPAUSE, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
+}
+
+TEST_F(KeyboardInputMapperTest_ExternalAlphabeticDevice, DoNotWakeByDefaultBehavior) {
+    // Tv Remote key's wake behavior is prescribed by the keylayout file.
+
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_HOME, 0, AKEYCODE_HOME, POLICY_FLAG_WAKE);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_DOWN, 0, AKEYCODE_DPAD_DOWN, 0);
+    mFakeEventHub->addKey(EVENTHUB_ID, KEY_PLAY, 0, AKEYCODE_MEDIA_PLAY, POLICY_FLAG_WAKE);
+
+    addConfigurationProperty("keyboard.doNotWakeByDefault", "1");
+    KeyboardInputMapper& mapper =
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
+
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_HOME, 1);
+    NotifyKeyArgs args;
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
+
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_HOME, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
+
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_DOWN, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(uint32_t(0), args.policyFlags);
+
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_DOWN, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(uint32_t(0), args.policyFlags);
+
+    process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_PLAY, 1);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
+
+    process(mapper, ARBITRARY_TIME + 1, READ_TIME, EV_KEY, KEY_PLAY, 0);
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
+    ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
+}
+
 } // namespace android