diff --git a/nfc/tests/Android.bp b/nfc/tests/Android.bp
new file mode 100644
index 0000000..62566ee
--- /dev/null
+++ b/nfc/tests/Android.bp
@@ -0,0 +1,40 @@
+// Copyright 2021 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 {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_base_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_base_license"],
+}
+
+android_test {
+    name: "NfcManagerTests",
+    static_libs: [
+        "androidx.test.ext.junit",
+        "androidx.test.rules",
+        "mockito-target-minus-junit4",
+        "truth",
+    ],
+    libs: [
+        "framework-nfc.impl",
+        "android.test.runner",
+    ],
+    srcs: ["src/**/*.java"],
+    platform_apis: true,
+    certificate: "platform",
+    test_suites: ["device-tests"],
+}
diff --git a/nfc/tests/AndroidManifest.xml b/nfc/tests/AndroidManifest.xml
new file mode 100644
index 0000000..99e2c34c
--- /dev/null
+++ b/nfc/tests/AndroidManifest.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2021 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.
+-->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="android.nfc">
+
+    <application>
+        <uses-library android:name="android.test.runner" />
+    </application>
+
+    <!-- This is a self-instrumenting test package. -->
+    <instrumentation android:name="androidx.test.runner.AndroidJUnitRunner"
+                     android:targetPackage="android.nfc"
+                     android:label="NFC Manager Tests">
+    </instrumentation>
+
+</manifest>
+
diff --git a/nfc/tests/AndroidTest.xml b/nfc/tests/AndroidTest.xml
new file mode 100644
index 0000000..490d6f5
--- /dev/null
+++ b/nfc/tests/AndroidTest.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2021 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.
+-->
+<configuration description="Config for NFC Manager test cases">
+    <option name="test-suite-tag" value="apct"/>
+    <option name="test-suite-tag" value="apct-instrumentation"/>
+    <target_preparer class="com.android.tradefed.targetprep.suite.SuiteApkInstaller">
+        <option name="cleanup-apks" value="true" />
+        <option name="test-file-name" value="NfcManagerTests.apk" />
+    </target_preparer>
+
+    <option name="test-suite-tag" value="apct"/>
+    <option name="test-tag" value="NfcManagerTests"/>
+
+    <test class="com.android.tradefed.testtype.AndroidJUnitTest" >
+        <option name="package" value="android.nfc" />
+        <option name="hidden-api-checks" value="false"/>
+        <option name="runner" value="androidx.test.runner.AndroidJUnitRunner"/>
+    </test>
+</configuration>
diff --git a/nfc/tests/src/android/nfc/NfcControllerAlwaysOnListenerTest.java b/nfc/tests/src/android/nfc/NfcControllerAlwaysOnListenerTest.java
new file mode 100644
index 0000000..48f4288
--- /dev/null
+++ b/nfc/tests/src/android/nfc/NfcControllerAlwaysOnListenerTest.java
@@ -0,0 +1,199 @@
+/*
+ * Copyright 2021 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 android.nfc;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyBoolean;
+import static org.mockito.Mockito.doNothing;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.doThrow;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+import android.nfc.NfcAdapter.ControllerAlwaysOnListener;
+import android.os.RemoteException;
+
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.SmallTest;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.Executor;
+
+/**
+ * Test of {@link NfcControllerAlwaysOnListener}.
+ */
+@SmallTest
+@RunWith(AndroidJUnit4.class)
+public class NfcControllerAlwaysOnListenerTest {
+
+    private INfcAdapter mNfcAdapter = mock(INfcAdapter.class);
+
+    private Throwable mThrowRemoteException = new RemoteException("RemoteException");
+
+    private static Executor getExecutor() {
+        return new Executor() {
+            @Override
+            public void execute(Runnable command) {
+                command.run();
+            }
+        };
+    }
+
+    private static void verifyListenerInvoked(ControllerAlwaysOnListener listener) {
+        verify(listener, times(1)).onControllerAlwaysOnChanged(anyBoolean());
+    }
+
+    @Test
+    public void testRegister_RegisterUnregisterWhenNotSupported() throws RemoteException {
+        // isControllerAlwaysOnSupported() returns false, not supported.
+        doReturn(false).when(mNfcAdapter).isControllerAlwaysOnSupported();
+        NfcControllerAlwaysOnListener mListener =
+                new NfcControllerAlwaysOnListener(mNfcAdapter);
+        ControllerAlwaysOnListener mockListener1 = mock(ControllerAlwaysOnListener.class);
+        ControllerAlwaysOnListener mockListener2 = mock(ControllerAlwaysOnListener.class);
+
+        // Verify that the state listener will not registered with the NFC Adapter
+        mListener.register(getExecutor(), mockListener1);
+        verify(mNfcAdapter, times(0)).registerControllerAlwaysOnListener(any());
+
+        // Register a second client and no any call to NFC Adapter
+        mListener.register(getExecutor(), mockListener2);
+        verify(mNfcAdapter, times(0)).registerControllerAlwaysOnListener(any());
+
+        // Unregister first listener, and no any call to NFC Adapter
+        mListener.unregister(mockListener1);
+        verify(mNfcAdapter, times(0)).registerControllerAlwaysOnListener(any());
+        verify(mNfcAdapter, times(0)).unregisterControllerAlwaysOnListener(any());
+
+        // Unregister second listener, and no any call to NFC Adapter
+        mListener.unregister(mockListener2);
+        verify(mNfcAdapter, times(0)).registerControllerAlwaysOnListener(any());
+        verify(mNfcAdapter, times(0)).unregisterControllerAlwaysOnListener(any());
+    }
+
+    @Test
+    public void testRegister_RegisterUnregister() throws RemoteException {
+        doReturn(true).when(mNfcAdapter).isControllerAlwaysOnSupported();
+        NfcControllerAlwaysOnListener mListener =
+                new NfcControllerAlwaysOnListener(mNfcAdapter);
+        ControllerAlwaysOnListener mockListener1 = mock(ControllerAlwaysOnListener.class);
+        ControllerAlwaysOnListener mockListener2 = mock(ControllerAlwaysOnListener.class);
+
+        // Verify that the state listener registered with the NFC Adapter
+        mListener.register(getExecutor(), mockListener1);
+        verify(mNfcAdapter, times(1)).registerControllerAlwaysOnListener(any());
+
+        // Register a second client and no new call to NFC Adapter
+        mListener.register(getExecutor(), mockListener2);
+        verify(mNfcAdapter, times(1)).registerControllerAlwaysOnListener(any());
+
+        // Unregister first listener
+        mListener.unregister(mockListener1);
+        verify(mNfcAdapter, times(1)).registerControllerAlwaysOnListener(any());
+        verify(mNfcAdapter, times(0)).unregisterControllerAlwaysOnListener(any());
+
+        // Unregister second listener and the state listener registered with the NFC Adapter
+        mListener.unregister(mockListener2);
+        verify(mNfcAdapter, times(1)).registerControllerAlwaysOnListener(any());
+        verify(mNfcAdapter, times(1)).unregisterControllerAlwaysOnListener(any());
+    }
+
+    @Test
+    public void testRegister_FirstRegisterFails() throws RemoteException {
+        doReturn(true).when(mNfcAdapter).isControllerAlwaysOnSupported();
+        NfcControllerAlwaysOnListener mListener =
+                new NfcControllerAlwaysOnListener(mNfcAdapter);
+        ControllerAlwaysOnListener mockListener1 = mock(ControllerAlwaysOnListener.class);
+        ControllerAlwaysOnListener mockListener2 = mock(ControllerAlwaysOnListener.class);
+
+        // Throw a remote exception whenever first registering
+        doThrow(mThrowRemoteException).when(mNfcAdapter).registerControllerAlwaysOnListener(
+                any());
+
+        mListener.register(getExecutor(), mockListener1);
+        verify(mNfcAdapter, times(1)).registerControllerAlwaysOnListener(any());
+
+        // No longer throw an exception, instead succeed
+        doNothing().when(mNfcAdapter).registerControllerAlwaysOnListener(any());
+
+        // Register a different listener
+        mListener.register(getExecutor(), mockListener2);
+        verify(mNfcAdapter, times(2)).registerControllerAlwaysOnListener(any());
+
+        // Ensure first and second listener were invoked
+        mListener.onControllerAlwaysOnChanged(true);
+        verifyListenerInvoked(mockListener1);
+        verifyListenerInvoked(mockListener2);
+    }
+
+    @Test
+    public void testRegister_RegisterSameListenerTwice() throws RemoteException {
+        doReturn(true).when(mNfcAdapter).isControllerAlwaysOnSupported();
+        NfcControllerAlwaysOnListener mListener =
+                new NfcControllerAlwaysOnListener(mNfcAdapter);
+        ControllerAlwaysOnListener mockListener = mock(ControllerAlwaysOnListener.class);
+
+        // Register the same listener Twice
+        mListener.register(getExecutor(), mockListener);
+        mListener.register(getExecutor(), mockListener);
+        verify(mNfcAdapter, times(1)).registerControllerAlwaysOnListener(any());
+
+        // Invoke a state change and ensure the listener is only called once
+        mListener.onControllerAlwaysOnChanged(true);
+        verifyListenerInvoked(mockListener);
+    }
+
+    @Test
+    public void testNotify_AllListenersNotified() throws RemoteException {
+        doReturn(true).when(mNfcAdapter).isControllerAlwaysOnSupported();
+        NfcControllerAlwaysOnListener listener = new NfcControllerAlwaysOnListener(mNfcAdapter);
+        List<ControllerAlwaysOnListener> mockListeners = new ArrayList<>();
+        for (int i = 0; i < 10; i++) {
+            ControllerAlwaysOnListener mockListener = mock(ControllerAlwaysOnListener.class);
+            listener.register(getExecutor(), mockListener);
+            mockListeners.add(mockListener);
+        }
+
+        // Invoke a state change and ensure all listeners are invoked
+        listener.onControllerAlwaysOnChanged(true);
+        for (ControllerAlwaysOnListener mListener : mockListeners) {
+            verifyListenerInvoked(mListener);
+        }
+    }
+
+    @Test
+    public void testStateChange_CorrectValue() throws RemoteException {
+        doReturn(true).when(mNfcAdapter).isControllerAlwaysOnSupported();
+        runStateChangeValue(true, true);
+        runStateChangeValue(false, false);
+
+    }
+
+    private void runStateChangeValue(boolean isEnabledIn, boolean isEnabledOut) {
+        NfcControllerAlwaysOnListener listener = new NfcControllerAlwaysOnListener(mNfcAdapter);
+        ControllerAlwaysOnListener mockListener = mock(ControllerAlwaysOnListener.class);
+        listener.register(getExecutor(), mockListener);
+        listener.onControllerAlwaysOnChanged(isEnabledIn);
+        verify(mockListener, times(1)).onControllerAlwaysOnChanged(isEnabledOut);
+        verify(mockListener, times(0)).onControllerAlwaysOnChanged(!isEnabledOut);
+    }
+}
diff --git a/nfc/tests/src/android/nfc/TechListParcelTest.java b/nfc/tests/src/android/nfc/TechListParcelTest.java
new file mode 100644
index 0000000..a12bbbc
--- /dev/null
+++ b/nfc/tests/src/android/nfc/TechListParcelTest.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.nfc;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.os.Parcel;
+
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.Arrays;
+
+@RunWith(AndroidJUnit4.class)
+public class TechListParcelTest {
+
+    private static final String[] TECH_LIST_1 = new String[] { "tech1.1", "tech1.2" };
+    private static final String[] TECH_LIST_2 = new String[] { "tech2.1" };
+    private static final String[] TECH_LIST_EMPTY = new String[] {};
+
+    @Test
+    public void testWriteParcel() {
+        TechListParcel techListParcel = new TechListParcel(TECH_LIST_1, TECH_LIST_2);
+
+        Parcel parcel = Parcel.obtain();
+        techListParcel.writeToParcel(parcel, 0);
+        parcel.setDataPosition(0);
+        TechListParcel actualTechList =
+                TechListParcel.CREATOR.createFromParcel(parcel);
+        parcel.recycle();
+
+        assertThat(actualTechList.getTechLists().length).isEqualTo(2);
+        assertThat(Arrays.equals(actualTechList.getTechLists()[0], TECH_LIST_1)).isTrue();
+        assertThat(Arrays.equals(actualTechList.getTechLists()[1], TECH_LIST_2)).isTrue();
+    }
+
+    @Test
+    public void testWriteParcelArrayEmpty() {
+        TechListParcel techListParcel = new TechListParcel();
+
+        Parcel parcel = Parcel.obtain();
+        techListParcel.writeToParcel(parcel, 0);
+        parcel.setDataPosition(0);
+        TechListParcel actualTechList =
+                TechListParcel.CREATOR.createFromParcel(parcel);
+        parcel.recycle();
+
+        assertThat(actualTechList.getTechLists().length).isEqualTo(0);
+    }
+
+    @Test
+    public void testWriteParcelElementEmpty() {
+        TechListParcel techListParcel = new TechListParcel(TECH_LIST_EMPTY);
+
+        Parcel parcel = Parcel.obtain();
+        techListParcel.writeToParcel(parcel, 0);
+        parcel.setDataPosition(0);
+        TechListParcel actualTechList =
+                TechListParcel.CREATOR.createFromParcel(parcel);
+        parcel.recycle();
+
+        assertThat(actualTechList.getTechLists().length).isEqualTo(1);
+        assertThat(Arrays.equals(actualTechList.getTechLists()[0], TECH_LIST_EMPTY)).isTrue();
+    }
+
+}