diff --git a/packages/SettingsLib/DeviceStateRotationLock/src/com.android.settingslib.devicestate/PosturesHelper.kt b/packages/SettingsLib/DeviceStateRotationLock/src/com.android.settingslib.devicestate/PosturesHelper.kt
index 9c70be9..6a13eb8 100644
--- a/packages/SettingsLib/DeviceStateRotationLock/src/com.android.settingslib.devicestate/PosturesHelper.kt
+++ b/packages/SettingsLib/DeviceStateRotationLock/src/com.android.settingslib.devicestate/PosturesHelper.kt
@@ -19,6 +19,7 @@
 import android.content.Context
 import android.provider.Settings.Secure.DEVICE_STATE_ROTATION_KEY_FOLDED
 import android.provider.Settings.Secure.DEVICE_STATE_ROTATION_KEY_HALF_FOLDED
+import android.provider.Settings.Secure.DEVICE_STATE_ROTATION_KEY_REAR_DISPLAY
 import android.provider.Settings.Secure.DEVICE_STATE_ROTATION_KEY_UNFOLDED
 import android.provider.Settings.Secure.DEVICE_STATE_ROTATION_KEY_UNKNOWN
 import android.provider.Settings.Secure.DeviceStateRotationLockKey
@@ -33,6 +34,8 @@
         context.resources.getIntArray(R.array.config_halfFoldedDeviceStates)
     private val unfoldedDeviceStates =
         context.resources.getIntArray(R.array.config_openDeviceStates)
+    private val rearDisplayDeviceStates =
+        context.resources.getIntArray(R.array.config_rearDisplayDeviceStates)
 
     @DeviceStateRotationLockKey
     fun deviceStateToPosture(deviceState: Int): Int {
@@ -40,6 +43,7 @@
             in foldedDeviceStates -> DEVICE_STATE_ROTATION_KEY_FOLDED
             in halfFoldedDeviceStates -> DEVICE_STATE_ROTATION_KEY_HALF_FOLDED
             in unfoldedDeviceStates -> DEVICE_STATE_ROTATION_KEY_UNFOLDED
+            in rearDisplayDeviceStates -> DEVICE_STATE_ROTATION_KEY_REAR_DISPLAY
             else -> DEVICE_STATE_ROTATION_KEY_UNKNOWN
         }
     }
@@ -49,6 +53,7 @@
             DEVICE_STATE_ROTATION_KEY_FOLDED -> foldedDeviceStates.firstOrNull()
             DEVICE_STATE_ROTATION_KEY_HALF_FOLDED -> halfFoldedDeviceStates.firstOrNull()
             DEVICE_STATE_ROTATION_KEY_UNFOLDED -> unfoldedDeviceStates.firstOrNull()
+            DEVICE_STATE_ROTATION_KEY_REAR_DISPLAY -> rearDisplayDeviceStates.firstOrNull()
             else -> null
         }
     }
diff --git a/packages/SettingsLib/tests/integ/Android.bp b/packages/SettingsLib/tests/integ/Android.bp
index d463170..ff3eeec 100644
--- a/packages/SettingsLib/tests/integ/Android.bp
+++ b/packages/SettingsLib/tests/integ/Android.bp
@@ -30,7 +30,10 @@
 
     certificate: "platform",
 
-    srcs: ["src/**/*.java"],
+    srcs: [
+        "src/**/*.java",
+        "src/**/*.kt",
+    ],
 
     libs: [
         "android.test.runner",
diff --git a/packages/SettingsLib/tests/integ/src/com/android/settingslib/devicestate/PosturesHelperTest.kt b/packages/SettingsLib/tests/integ/src/com/android/settingslib/devicestate/PosturesHelperTest.kt
new file mode 100644
index 0000000..d91c2fa
--- /dev/null
+++ b/packages/SettingsLib/tests/integ/src/com/android/settingslib/devicestate/PosturesHelperTest.kt
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settingslib.devicestate
+
+import android.content.Context
+import android.content.res.Resources
+import android.provider.Settings.Secure.DEVICE_STATE_ROTATION_KEY_FOLDED
+import android.provider.Settings.Secure.DEVICE_STATE_ROTATION_KEY_HALF_FOLDED
+import android.provider.Settings.Secure.DEVICE_STATE_ROTATION_KEY_REAR_DISPLAY
+import android.provider.Settings.Secure.DEVICE_STATE_ROTATION_KEY_UNFOLDED
+import android.provider.Settings.Secure.DEVICE_STATE_ROTATION_KEY_UNKNOWN
+import androidx.test.filters.SmallTest
+import androidx.test.runner.AndroidJUnit4
+import com.android.internal.R
+import com.google.common.truth.Expect
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.Mock
+import org.mockito.Mockito.`when` as whenever
+import org.mockito.MockitoAnnotations
+
+private const val DEVICE_STATE_UNKNOWN = 0
+private const val DEVICE_STATE_CLOSED = 1
+private const val DEVICE_STATE_HALF_FOLDED = 2
+private const val DEVICE_STATE_OPEN = 3
+private const val DEVICE_STATE_REAR_DISPLAY = 4
+
+@SmallTest
+@RunWith(AndroidJUnit4::class)
+class PosturesHelperTest {
+
+    @get:Rule val expect: Expect = Expect.create()
+
+    @Mock private lateinit var context: Context
+
+    @Mock private lateinit var resources: Resources
+
+    private lateinit var posturesHelper: PosturesHelper
+
+    @Before
+    fun setUp() {
+        MockitoAnnotations.initMocks(this)
+
+        whenever(context.resources).thenReturn(resources)
+        whenever(resources.getIntArray(R.array.config_foldedDeviceStates))
+            .thenReturn(intArrayOf(DEVICE_STATE_CLOSED))
+        whenever(resources.getIntArray(R.array.config_halfFoldedDeviceStates))
+            .thenReturn(intArrayOf(DEVICE_STATE_HALF_FOLDED))
+        whenever(resources.getIntArray(R.array.config_openDeviceStates))
+            .thenReturn(intArrayOf(DEVICE_STATE_OPEN))
+        whenever(resources.getIntArray(R.array.config_rearDisplayDeviceStates))
+            .thenReturn(intArrayOf(DEVICE_STATE_REAR_DISPLAY))
+
+        posturesHelper = PosturesHelper(context)
+    }
+
+    @Test
+    fun deviceStateToPosture_mapsCorrectly() {
+        expect
+            .that(posturesHelper.deviceStateToPosture(DEVICE_STATE_CLOSED))
+            .isEqualTo(DEVICE_STATE_ROTATION_KEY_FOLDED)
+        expect
+            .that(posturesHelper.deviceStateToPosture(DEVICE_STATE_HALF_FOLDED))
+            .isEqualTo(DEVICE_STATE_ROTATION_KEY_HALF_FOLDED)
+        expect
+            .that(posturesHelper.deviceStateToPosture(DEVICE_STATE_OPEN))
+            .isEqualTo(DEVICE_STATE_ROTATION_KEY_UNFOLDED)
+        expect
+            .that(posturesHelper.deviceStateToPosture(DEVICE_STATE_REAR_DISPLAY))
+            .isEqualTo(DEVICE_STATE_ROTATION_KEY_REAR_DISPLAY)
+        expect
+            .that(posturesHelper.deviceStateToPosture(DEVICE_STATE_UNKNOWN))
+            .isEqualTo(DEVICE_STATE_ROTATION_KEY_UNKNOWN)
+    }
+
+    @Test
+    fun postureToDeviceState_mapsCorrectly() {
+        expect
+            .that(posturesHelper.postureToDeviceState(DEVICE_STATE_ROTATION_KEY_FOLDED))
+            .isEqualTo(DEVICE_STATE_CLOSED)
+        expect
+            .that(posturesHelper.postureToDeviceState(DEVICE_STATE_ROTATION_KEY_HALF_FOLDED))
+            .isEqualTo(DEVICE_STATE_HALF_FOLDED)
+        expect
+            .that(posturesHelper.postureToDeviceState(DEVICE_STATE_ROTATION_KEY_UNFOLDED))
+            .isEqualTo(DEVICE_STATE_OPEN)
+        expect
+            .that(posturesHelper.postureToDeviceState(DEVICE_STATE_ROTATION_KEY_REAR_DISPLAY))
+            .isEqualTo(DEVICE_STATE_REAR_DISPLAY)
+        expect.that(posturesHelper.postureToDeviceState(DEVICE_STATE_ROTATION_KEY_UNKNOWN)).isNull()
+    }
+}