diff --git a/thread/tests/integration/Android.bp b/thread/tests/integration/Android.bp
index 6ba192d..9677ec5 100644
--- a/thread/tests/integration/Android.bp
+++ b/thread/tests/integration/Android.bp
@@ -31,6 +31,7 @@
         "net-utils-device-common",
         "net-utils-device-common-bpf",
         "testables",
+        "ThreadNetworkTestUtils",
         "truth",
     ],
     libs: [
diff --git a/thread/tests/integration/src/android/net/thread/ServiceDiscoveryTest.java b/thread/tests/integration/src/android/net/thread/ServiceDiscoveryTest.java
new file mode 100644
index 0000000..9bc92c7
--- /dev/null
+++ b/thread/tests/integration/src/android/net/thread/ServiceDiscoveryTest.java
@@ -0,0 +1,351 @@
+/*
+ * Copyright (C) 2024 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.net.thread;
+
+import static android.Manifest.permission.NETWORK_SETTINGS;
+import static android.net.InetAddresses.parseNumericAddress;
+import static android.net.thread.ThreadNetworkManager.PERMISSION_THREAD_NETWORK_PRIVILEGED;
+import static android.net.thread.utils.IntegrationTestUtils.JOIN_TIMEOUT;
+import static android.net.thread.utils.IntegrationTestUtils.RESTART_JOIN_TIMEOUT;
+import static android.net.thread.utils.IntegrationTestUtils.SERVICE_DISCOVERY_TIMEOUT;
+import static android.net.thread.utils.IntegrationTestUtils.discoverForServiceLost;
+import static android.net.thread.utils.IntegrationTestUtils.discoverService;
+import static android.net.thread.utils.IntegrationTestUtils.isSimulatedThreadRadioSupported;
+import static android.net.thread.utils.IntegrationTestUtils.resolveService;
+import static android.net.thread.utils.IntegrationTestUtils.resolveServiceUntil;
+import static android.net.thread.utils.IntegrationTestUtils.waitFor;
+
+import static com.android.testutils.TestPermissionUtil.runAsShell;
+
+import static com.google.common.io.BaseEncoding.base16;
+import static com.google.common.truth.Truth.assertThat;
+import static com.google.common.util.concurrent.MoreExecutors.directExecutor;
+
+import static org.junit.Assert.assertThrows;
+import static org.junit.Assume.assumeNotNull;
+import static org.junit.Assume.assumeTrue;
+
+import static java.util.concurrent.TimeUnit.MILLISECONDS;
+import static java.util.concurrent.TimeUnit.SECONDS;
+
+import android.content.Context;
+import android.net.nsd.NsdManager;
+import android.net.nsd.NsdServiceInfo;
+import android.net.thread.utils.FullThreadDevice;
+import android.net.thread.utils.OtDaemonController;
+import android.net.thread.utils.TapTestNetworkTracker;
+import android.os.HandlerThread;
+
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.filters.LargeTest;
+import androidx.test.runner.AndroidJUnit4;
+
+import com.google.common.truth.Correspondence;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.net.Inet6Address;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.Random;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.TimeoutException;
+
+/** Integration test cases for Service Discovery feature. */
+@RunWith(AndroidJUnit4.class)
+@LargeTest
+public class ServiceDiscoveryTest {
+    private static final String TAG = ServiceDiscoveryTest.class.getSimpleName();
+    private static final int NUM_FTD = 3;
+    private final Context mContext = ApplicationProvider.getApplicationContext();
+
+    private HandlerThread mHandlerThread;
+    private ThreadNetworkController mController;
+    private NsdManager mNsdManager;
+    private TapTestNetworkTracker mTestNetworkTracker;
+    private List<FullThreadDevice> mFtds;
+
+    // A valid Thread Active Operational Dataset generated from OpenThread CLI "dataset init new".
+    private static final byte[] DEFAULT_DATASET_TLVS =
+            base16().decode(
+                            "0E080000000000010000000300001335060004001FFFE002"
+                                    + "08ACC214689BC40BDF0708FD64DB1225F47E0B0510F26B31"
+                                    + "53760F519A63BAFDDFFC80D2AF030F4F70656E5468726561"
+                                    + "642D643961300102D9A00410A245479C836D551B9CA557F7"
+                                    + "B9D351B40C0402A0FFF8");
+    private static final ActiveOperationalDataset DEFAULT_DATASET =
+            ActiveOperationalDataset.fromThreadTlvs(DEFAULT_DATASET_TLVS);
+
+    private static final Correspondence<byte[], byte[]> BYTE_ARRAY_EQUALITY =
+            Correspondence.from(Arrays::equals, "is equivalent to");
+
+    @Before
+    public void setUp() throws Exception {
+        final ThreadNetworkManager manager = mContext.getSystemService(ThreadNetworkManager.class);
+        if (manager != null) {
+            mController = manager.getAllThreadNetworkControllers().get(0);
+        }
+
+        // Run the tests on only devices where the Thread feature is available.
+        assumeNotNull(mController);
+
+        // Run the tests only when the device uses simulated Thread radio.
+        assumeTrue(isSimulatedThreadRadioSupported());
+
+        // BR forms a network.
+        CompletableFuture<Void> joinFuture = new CompletableFuture<>();
+        runAsShell(
+                PERMISSION_THREAD_NETWORK_PRIVILEGED,
+                () -> mController.join(DEFAULT_DATASET, directExecutor(), joinFuture::complete));
+        joinFuture.get(RESTART_JOIN_TIMEOUT.toMillis(), MILLISECONDS);
+
+        mNsdManager = mContext.getSystemService(NsdManager.class);
+
+        mHandlerThread = new HandlerThread(TAG);
+        mHandlerThread.start();
+
+        mTestNetworkTracker = new TapTestNetworkTracker(mContext, mHandlerThread.getLooper());
+        assertThat(mTestNetworkTracker).isNotNull();
+        runAsShell(
+                PERMISSION_THREAD_NETWORK_PRIVILEGED,
+                NETWORK_SETTINGS,
+                () -> {
+                    CompletableFuture<Void> future = new CompletableFuture<>();
+                    mController.setTestNetworkAsUpstream(
+                            mTestNetworkTracker.getInterfaceName(),
+                            directExecutor(),
+                            v -> future.complete(null));
+                    future.get(5, SECONDS);
+                });
+        // Create the FTDs in setUp() so that the FTDs can be safely released in tearDown().
+        // Don't create new FTDs in test cases.
+        mFtds = new ArrayList<>();
+        for (int i = 0; i < NUM_FTD; ++i) {
+            FullThreadDevice ftd = new FullThreadDevice(10 + i /* node ID */);
+            ftd.autoStartSrpClient();
+            mFtds.add(ftd);
+        }
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        if (mController == null) {
+            return;
+        }
+        if (!isSimulatedThreadRadioSupported()) {
+            return;
+        }
+        for (FullThreadDevice ftd : mFtds) {
+            // Clear registered SRP hosts and services
+            if (ftd.isSrpHostRegistered()) {
+                ftd.removeSrpHost();
+            }
+            ftd.destroy();
+        }
+        if (mTestNetworkTracker != null) {
+            mTestNetworkTracker.tearDown();
+        }
+        if (mHandlerThread != null) {
+            mHandlerThread.quitSafely();
+            mHandlerThread.join();
+        }
+        runAsShell(
+                PERMISSION_THREAD_NETWORK_PRIVILEGED,
+                NETWORK_SETTINGS,
+                () -> {
+                    CompletableFuture<Void> setUpstreamFuture = new CompletableFuture<>();
+                    CompletableFuture<Void> leaveFuture = new CompletableFuture<>();
+                    mController.setTestNetworkAsUpstream(
+                            null, directExecutor(), v -> setUpstreamFuture.complete(null));
+                    mController.leave(directExecutor(), v -> leaveFuture.complete(null));
+                    setUpstreamFuture.get(5, SECONDS);
+                    leaveFuture.get(5, SECONDS);
+                });
+    }
+
+    @Test
+    public void advertisingProxy_multipleSrpClientsRegisterServices_servicesResolvableByMdns()
+            throws Exception {
+        /*
+         * <pre>
+         * Topology:
+         *                    Thread
+         *  Border Router -------------- Full Thread device 1
+         *  (Cuttlefish)         |
+         *                       +------ Full Thread device 2
+         *                       |
+         *                       +------ Full Thread device 3
+         * </pre>
+         */
+
+        // Creates Full Thread Devices (FTD) and let them join the network.
+        for (FullThreadDevice ftd : mFtds) {
+            ftd.joinNetwork(DEFAULT_DATASET);
+            ftd.waitForStateAnyOf(List.of("router", "child"), JOIN_TIMEOUT);
+        }
+
+        int randomId = new Random().nextInt(10_000);
+
+        String serviceNamePrefix = "service-" + randomId + "-";
+        String serviceTypePrefix = "_test" + randomId;
+        String hostnamePrefix = "host-" + randomId + "-";
+
+        // For every FTD, let it register an SRP service.
+        for (int i = 0; i < mFtds.size(); ++i) {
+            FullThreadDevice ftd = mFtds.get(i);
+            ftd.setSrpHostname(hostnamePrefix + i);
+            ftd.setSrpHostAddresses(List.of(ftd.getOmrAddress(), ftd.getMlEid()));
+            ftd.addSrpService(
+                    serviceNamePrefix + i,
+                    serviceTypePrefix + i + "._tcp",
+                    List.of("_sub1", "_sub2"),
+                    12345 /* port */,
+                    Map.of("key1", bytes(0x01, 0x02), "key2", bytes(i)));
+        }
+
+        // Check the advertised services are discoverable and resolvable by NsdManager
+        for (int i = 0; i < mFtds.size(); ++i) {
+            NsdServiceInfo discoveredService =
+                    discoverService(mNsdManager, serviceTypePrefix + i + "._tcp");
+            assertThat(discoveredService).isNotNull();
+            NsdServiceInfo resolvedService = resolveService(mNsdManager, discoveredService);
+            assertThat(resolvedService.getServiceName()).isEqualTo(serviceNamePrefix + i);
+            assertThat(resolvedService.getServiceType()).isEqualTo(serviceTypePrefix + i + "._tcp");
+            assertThat(resolvedService.getPort()).isEqualTo(12345);
+            assertThat(resolvedService.getAttributes())
+                    .comparingValuesUsing(BYTE_ARRAY_EQUALITY)
+                    .containsExactly("key1", bytes(0x01, 0x02), "key2", bytes(i));
+            assertThat(resolvedService.getHostname()).isEqualTo(hostnamePrefix + i);
+            assertThat(resolvedService.getHostAddresses())
+                    .containsExactly(mFtds.get(i).getOmrAddress());
+        }
+    }
+
+    @Test
+    public void advertisingProxy_srpClientUpdatesService_updatedServiceResolvableByMdns()
+            throws Exception {
+        /*
+         * <pre>
+         * Topology:
+         *                    Thread
+         *  Border Router -------------- Full Thread device
+         *  (Cuttlefish)
+         * </pre>
+         */
+
+        // Creates a Full Thread Devices (FTD) and let it join the network.
+        FullThreadDevice ftd = mFtds.get(0);
+        ftd.joinNetwork(DEFAULT_DATASET);
+        ftd.waitForStateAnyOf(List.of("router", "child"), JOIN_TIMEOUT);
+        ftd.setSrpHostname("my-host");
+        ftd.setSrpHostAddresses(List.of((Inet6Address) parseNumericAddress("2001:db8::1")));
+        ftd.addSrpService(
+                "my-service",
+                "_test._tcp",
+                Collections.emptyList() /* subtypes */,
+                12345 /* port */,
+                Map.of("key1", bytes(0x01, 0x02), "key2", bytes(0x03)));
+
+        // Update the host addresses
+        ftd.setSrpHostAddresses(
+                List.of(
+                        (Inet6Address) parseNumericAddress("2001:db8::1"),
+                        (Inet6Address) parseNumericAddress("2001:db8::2")));
+        // Update the service
+        ftd.updateSrpService(
+                "my-service", "_test._tcp", List.of("_sub3"), 11111, Map.of("key1", bytes(0x04)));
+        waitFor(ftd::isSrpHostRegistered, SERVICE_DISCOVERY_TIMEOUT);
+
+        // Check the advertised service is discoverable and resolvable by NsdManager
+        NsdServiceInfo discoveredService = discoverService(mNsdManager, "_test._tcp");
+        assertThat(discoveredService).isNotNull();
+        NsdServiceInfo resolvedService =
+                resolveServiceUntil(
+                        mNsdManager,
+                        discoveredService,
+                        s -> s.getPort() == 11111 && s.getHostAddresses().size() == 2);
+        assertThat(resolvedService.getServiceName()).isEqualTo("my-service");
+        assertThat(resolvedService.getServiceType()).isEqualTo("_test._tcp");
+        assertThat(resolvedService.getPort()).isEqualTo(11111);
+        assertThat(resolvedService.getAttributes())
+                .comparingValuesUsing(BYTE_ARRAY_EQUALITY)
+                .containsExactly("key1", bytes(0x04));
+        assertThat(resolvedService.getHostname()).isEqualTo("my-host");
+        assertThat(resolvedService.getHostAddresses())
+                .containsExactly(
+                        parseNumericAddress("2001:db8::1"), parseNumericAddress("2001:db8::2"));
+    }
+
+    @Test
+    public void advertisingProxy_srpClientUnregistersService_serviceIsNotDiscoverableByMdns()
+            throws Exception {
+        /*
+         * <pre>
+         * Topology:
+         *                    Thread
+         *  Border Router -------------- Full Thread device
+         *  (Cuttlefish)
+         * </pre>
+         */
+
+        // Creates a Full Thread Devices (FTD) and let it join the network.
+        FullThreadDevice ftd = mFtds.get(0);
+        ftd.joinNetwork(DEFAULT_DATASET);
+        ftd.waitForStateAnyOf(List.of("router", "child"), JOIN_TIMEOUT);
+        ftd.setSrpHostname("my-host");
+        ftd.setSrpHostAddresses(
+                List.of(
+                        (Inet6Address) parseNumericAddress("2001:db8::1"),
+                        (Inet6Address) parseNumericAddress("2001:db8::2")));
+        ftd.addSrpService(
+                "my-service",
+                "_test._udp",
+                List.of("_sub1"),
+                12345 /* port */,
+                Map.of("key1", bytes(0x01, 0x02), "key2", bytes(0x03)));
+        // Wait for the service to be discoverable by NsdManager.
+        assertThat(discoverService(mNsdManager, "_test._udp")).isNotNull();
+
+        // Unregister the service.
+        CompletableFuture<NsdServiceInfo> serviceLostFuture = new CompletableFuture<>();
+        NsdManager.DiscoveryListener listener =
+                discoverForServiceLost(mNsdManager, "_test._udp", serviceLostFuture);
+        ftd.removeSrpService("my-service", "_test._udp", true /* notifyServer */);
+
+        // Verify the service becomes lost.
+        try {
+            serviceLostFuture.get(SERVICE_DISCOVERY_TIMEOUT.toMillis(), MILLISECONDS);
+        } finally {
+            mNsdManager.stopServiceDiscovery(listener);
+        }
+        assertThrows(TimeoutException.class, () -> discoverService(mNsdManager, "_test._udp"));
+    }
+
+    private static byte[] bytes(int... byteInts) {
+        byte[] bytes = new byte[byteInts.length];
+        for (int i = 0; i < byteInts.length; ++i) {
+            bytes[i] = (byte) byteInts[i];
+        }
+        return bytes;
+    }
+}
diff --git a/thread/tests/integration/src/android/net/thread/utils/FullThreadDevice.java b/thread/tests/integration/src/android/net/thread/utils/FullThreadDevice.java
index 6cb1675..6306a65 100644
--- a/thread/tests/integration/src/android/net/thread/utils/FullThreadDevice.java
+++ b/thread/tests/integration/src/android/net/thread/utils/FullThreadDevice.java
@@ -15,6 +15,7 @@
  */
 package android.net.thread.utils;
 
+import static android.net.thread.utils.IntegrationTestUtils.SERVICE_DISCOVERY_TIMEOUT;
 import static android.net.thread.utils.IntegrationTestUtils.waitFor;
 
 import static com.google.common.io.BaseEncoding.base16;
@@ -25,15 +26,19 @@
 import android.net.IpPrefix;
 import android.net.thread.ActiveOperationalDataset;
 
+import com.google.errorprone.annotations.FormatMethod;
+
 import java.io.BufferedReader;
 import java.io.BufferedWriter;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.io.OutputStreamWriter;
 import java.net.Inet6Address;
+import java.nio.charset.StandardCharsets;
 import java.time.Duration;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Map;
 import java.util.concurrent.TimeoutException;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -191,7 +196,7 @@
     public void udpBind(Inet6Address address, int port) {
         udpClose();
         udpOpen();
-        executeCommand(String.format("udp bind %s %d", address.getHostAddress(), port));
+        executeCommand("udp bind %s %d", address.getHostAddress(), port);
     }
 
     /** Returns the message received on the UDP socket. */
@@ -204,6 +209,117 @@
         return matcher.group(4);
     }
 
+    /** Enables the SRP client and run in autostart mode. */
+    public void autoStartSrpClient() {
+        executeCommand("srp client autostart enable");
+    }
+
+    /** Sets the hostname (e.g. "MyHost") for the SRP client. */
+    public void setSrpHostname(String hostname) {
+        executeCommand("srp client host name " + hostname);
+    }
+
+    /** Sets the host addresses for the SRP client. */
+    public void setSrpHostAddresses(List<Inet6Address> addresses) {
+        executeCommand(
+                "srp client host address "
+                        + String.join(
+                                " ",
+                                addresses.stream().map(Inet6Address::getHostAddress).toList()));
+    }
+
+    /** Removes the SRP host */
+    public void removeSrpHost() {
+        executeCommand("srp client host remove 1 1");
+    }
+
+    /**
+     * Adds an SRP service for the SRP client and wait for the registration to complete.
+     *
+     * @param serviceName the service name like "MyService"
+     * @param serviceType the service type like "_test._tcp"
+     * @param subtypes the service subtypes like "_sub1"
+     * @param port the port number in range [1, 65535]
+     * @param txtMap the map of TXT names and values
+     * @throws TimeoutException if the service isn't registered within timeout
+     */
+    public void addSrpService(
+            String serviceName,
+            String serviceType,
+            List<String> subtypes,
+            int port,
+            Map<String, byte[]> txtMap)
+            throws TimeoutException {
+        StringBuilder fullServiceType = new StringBuilder(serviceType);
+        for (String subtype : subtypes) {
+            fullServiceType.append(",").append(subtype);
+        }
+        executeCommand(
+                "srp client service add %s %s %d %d %d %s",
+                serviceName,
+                fullServiceType,
+                port,
+                0 /* priority */,
+                0 /* weight */,
+                txtMapToHexString(txtMap));
+        waitFor(() -> isSrpServiceRegistered(serviceName, serviceType), SERVICE_DISCOVERY_TIMEOUT);
+    }
+
+    /**
+     * Removes an SRP service for the SRP client.
+     *
+     * @param serviceName the service name like "MyService"
+     * @param serviceType the service type like "_test._tcp"
+     * @param notifyServer whether to notify SRP server about the removal
+     */
+    public void removeSrpService(String serviceName, String serviceType, boolean notifyServer) {
+        String verb = notifyServer ? "remove" : "clear";
+        executeCommand("srp client service %s %s %s", verb, serviceName, serviceType);
+    }
+
+    /**
+     * Updates an existing SRP service for the SRP client.
+     *
+     * <p>This is essentially a 'remove' and an 'add' on the SRP client's side.
+     *
+     * @param serviceName the service name like "MyService"
+     * @param serviceType the service type like "_test._tcp"
+     * @param subtypes the service subtypes like "_sub1"
+     * @param port the port number in range [1, 65535]
+     * @param txtMap the map of TXT names and values
+     * @throws TimeoutException if the service isn't updated within timeout
+     */
+    public void updateSrpService(
+            String serviceName,
+            String serviceType,
+            List<String> subtypes,
+            int port,
+            Map<String, byte[]> txtMap)
+            throws TimeoutException {
+        removeSrpService(serviceName, serviceType, false /* notifyServer */);
+        addSrpService(serviceName, serviceType, subtypes, port, txtMap);
+    }
+
+    /** Checks if an SRP service is registered. */
+    public boolean isSrpServiceRegistered(String serviceName, String serviceType) {
+        List<String> lines = executeCommand("srp client service");
+        for (String line : lines) {
+            if (line.contains(serviceName) && line.contains(serviceType)) {
+                return line.contains("Registered");
+            }
+        }
+        return false;
+    }
+
+    /** Checks if an SRP host is registered. */
+    public boolean isSrpHostRegistered() {
+        List<String> lines = executeCommand("srp client host");
+        for (String line : lines) {
+            return line.contains("Registered");
+        }
+        return false;
+    }
+
     /** Runs the "factoryreset" command on the device. */
     public void factoryReset() {
         try {
@@ -240,6 +356,11 @@
         ping(address, null, 100 /* size */, 1 /* count */);
     }
 
+    @FormatMethod
+    private List<String> executeCommand(String commandFormat, Object... args) {
+        return executeCommand(String.format(commandFormat, args));
+    }
+
     private List<String> executeCommand(String command) {
         try {
             mWriter.write(command + "\n");
@@ -263,7 +384,7 @@
             if (line.equals("Done")) {
                 break;
             }
-            if (line.startsWith("Error:")) {
+            if (line.startsWith("Error")) {
                 fail("ot-cli-ftd reported an error: " + line);
             }
             if (!line.startsWith("> ")) {
@@ -272,4 +393,27 @@
         }
         return result;
     }
+
+    private static String txtMapToHexString(Map<String, byte[]> txtMap) {
+        if (txtMap == null) {
+            return "";
+        }
+        StringBuilder sb = new StringBuilder();
+        for (Map.Entry<String, byte[]> entry : txtMap.entrySet()) {
+            int length = entry.getKey().length() + entry.getValue().length + 1;
+            sb.append(String.format("%02x", length));
+            sb.append(toHexString(entry.getKey()));
+            sb.append(toHexString("="));
+            sb.append(toHexString(entry.getValue()));
+        }
+        return sb.toString();
+    }
+
+    private static String toHexString(String s) {
+        return toHexString(s.getBytes(StandardCharsets.UTF_8));
+    }
+
+    private static String toHexString(byte[] bytes) {
+        return base16().encode(bytes);
+    }
 }
diff --git a/thread/tests/integration/src/android/net/thread/utils/IntegrationTestUtils.java b/thread/tests/integration/src/android/net/thread/utils/IntegrationTestUtils.java
index 74251a6..6e70d24 100644
--- a/thread/tests/integration/src/android/net/thread/utils/IntegrationTestUtils.java
+++ b/thread/tests/integration/src/android/net/thread/utils/IntegrationTestUtils.java
@@ -23,12 +23,18 @@
 
 import static com.google.common.util.concurrent.MoreExecutors.directExecutor;
 
+import static java.util.concurrent.TimeUnit.MILLISECONDS;
+
 import android.net.TestNetworkInterface;
+import android.net.nsd.NsdManager;
+import android.net.nsd.NsdServiceInfo;
 import android.net.thread.ThreadNetworkController;
 import android.os.Handler;
 import android.os.SystemClock;
 import android.os.SystemProperties;
 
+import androidx.annotation.NonNull;
+
 import com.android.net.module.util.Struct;
 import com.android.net.module.util.structs.Icmpv6Header;
 import com.android.net.module.util.structs.Ipv6Header;
@@ -51,6 +57,7 @@
 import java.time.Duration;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
@@ -66,6 +73,7 @@
     public static final Duration JOIN_TIMEOUT = Duration.ofSeconds(30);
     public static final Duration LEAVE_TIMEOUT = Duration.ofSeconds(2);
     public static final Duration CALLBACK_TIMEOUT = Duration.ofSeconds(1);
+    public static final Duration SERVICE_DISCOVERY_TIMEOUT = Duration.ofSeconds(20);
 
     private IntegrationTestUtils() {}
 
@@ -289,4 +297,106 @@
         }
         return false;
     }
+
+    /** Return the first discovered service of {@code serviceType}. */
+    public static NsdServiceInfo discoverService(NsdManager nsdManager, String serviceType)
+            throws Exception {
+        CompletableFuture<NsdServiceInfo> serviceInfoFuture = new CompletableFuture<>();
+        NsdManager.DiscoveryListener listener =
+                new DefaultDiscoveryListener() {
+                    @Override
+                    public void onServiceFound(NsdServiceInfo serviceInfo) {
+                        serviceInfoFuture.complete(serviceInfo);
+                    }
+                };
+        nsdManager.discoverServices(serviceType, NsdManager.PROTOCOL_DNS_SD, listener);
+        try {
+            serviceInfoFuture.get(SERVICE_DISCOVERY_TIMEOUT.toMillis(), MILLISECONDS);
+        } finally {
+            nsdManager.stopServiceDiscovery(listener);
+        }
+
+        return serviceInfoFuture.get();
+    }
+
+    /**
+     * Returns the {@link NsdServiceInfo} when a service instance of {@code serviceType} gets lost.
+     */
+    public static NsdManager.DiscoveryListener discoverForServiceLost(
+            NsdManager nsdManager,
+            String serviceType,
+            CompletableFuture<NsdServiceInfo> serviceInfoFuture) {
+        NsdManager.DiscoveryListener listener =
+                new DefaultDiscoveryListener() {
+                    @Override
+                    public void onServiceLost(NsdServiceInfo serviceInfo) {
+                        serviceInfoFuture.complete(serviceInfo);
+                    }
+                };
+        nsdManager.discoverServices(serviceType, NsdManager.PROTOCOL_DNS_SD, listener);
+        return listener;
+    }
+
+    /** Resolves the service. */
+    public static NsdServiceInfo resolveService(NsdManager nsdManager, NsdServiceInfo serviceInfo)
+            throws Exception {
+        return resolveServiceUntil(nsdManager, serviceInfo, s -> true);
+    }
+
+    /** Returns the first resolved service that satisfies the {@code predicate}. */
+    public static NsdServiceInfo resolveServiceUntil(
+            NsdManager nsdManager, NsdServiceInfo serviceInfo, Predicate<NsdServiceInfo> predicate)
+            throws Exception {
+        CompletableFuture<NsdServiceInfo> resolvedServiceInfoFuture = new CompletableFuture<>();
+        NsdManager.ServiceInfoCallback callback =
+                new DefaultServiceInfoCallback() {
+                    @Override
+                    public void onServiceUpdated(@NonNull NsdServiceInfo serviceInfo) {
+                        if (predicate.test(serviceInfo)) {
+                            resolvedServiceInfoFuture.complete(serviceInfo);
+                        }
+                    }
+                };
+        nsdManager.registerServiceInfoCallback(serviceInfo, directExecutor(), callback);
+        try {
+            return resolvedServiceInfoFuture.get(
+                    SERVICE_DISCOVERY_TIMEOUT.toMillis(), MILLISECONDS);
+        } finally {
+            nsdManager.unregisterServiceInfoCallback(callback);
+        }
+    }
+
+    private static class DefaultDiscoveryListener implements NsdManager.DiscoveryListener {
+        @Override
+        public void onStartDiscoveryFailed(String serviceType, int errorCode) {}
+
+        @Override
+        public void onStopDiscoveryFailed(String serviceType, int errorCode) {}
+
+        @Override
+        public void onDiscoveryStarted(String serviceType) {}
+
+        @Override
+        public void onDiscoveryStopped(String serviceType) {}
+
+        @Override
+        public void onServiceFound(NsdServiceInfo serviceInfo) {}
+
+        @Override
+        public void onServiceLost(NsdServiceInfo serviceInfo) {}
+    }
+
+    private static class DefaultServiceInfoCallback implements NsdManager.ServiceInfoCallback {
+        @Override
+        public void onServiceInfoCallbackRegistrationFailed(int errorCode) {}
+
+        @Override
+        public void onServiceUpdated(@NonNull NsdServiceInfo serviceInfo) {}
+
+        @Override
+        public void onServiceLost() {}
+
+        @Override
+        public void onServiceInfoCallbackUnregistered() {}
+    }
 }
diff --git a/thread/tests/unit/src/com/android/server/thread/NsdPublisherTest.java b/thread/tests/unit/src/com/android/server/thread/NsdPublisherTest.java
index 8aea0a3..54e89b1 100644
--- a/thread/tests/unit/src/com/android/server/thread/NsdPublisherTest.java
+++ b/thread/tests/unit/src/com/android/server/thread/NsdPublisherTest.java
@@ -28,6 +28,7 @@
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 
+import android.net.InetAddresses;
 import android.net.nsd.NsdManager;
 import android.net.nsd.NsdServiceInfo;
 import android.os.Handler;
@@ -42,6 +43,8 @@
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 
+import java.net.InetAddress;
+import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import java.util.Set;
@@ -282,6 +285,189 @@
     }
 
     @Test
+    public void registerHost_nsdManagerSucceeds_serviceRegistrationSucceeds() throws Exception {
+        prepareTest();
+
+        mNsdPublisher.registerHost(
+                "MyHost",
+                List.of("2001:db8::1", "2001:db8::2", "2001:db8::3"),
+                mRegistrationReceiver,
+                16 /* listenerId */);
+
+        mTestLooper.dispatchAll();
+
+        ArgumentCaptor<NsdServiceInfo> actualServiceInfoCaptor =
+                ArgumentCaptor.forClass(NsdServiceInfo.class);
+        ArgumentCaptor<NsdManager.RegistrationListener> actualRegistrationListenerCaptor =
+                ArgumentCaptor.forClass(NsdManager.RegistrationListener.class);
+
+        verify(mMockNsdManager, times(1))
+                .registerService(
+                        actualServiceInfoCaptor.capture(),
+                        eq(PROTOCOL_DNS_SD),
+                        any(),
+                        actualRegistrationListenerCaptor.capture());
+
+        NsdServiceInfo actualServiceInfo = actualServiceInfoCaptor.getValue();
+        NsdManager.RegistrationListener actualRegistrationListener =
+                actualRegistrationListenerCaptor.getValue();
+
+        actualRegistrationListener.onServiceRegistered(actualServiceInfo);
+        mTestLooper.dispatchAll();
+
+        assertThat(actualServiceInfo.getServiceName()).isNull();
+        assertThat(actualServiceInfo.getServiceType()).isNull();
+        assertThat(actualServiceInfo.getSubtypes()).isEmpty();
+        assertThat(actualServiceInfo.getPort()).isEqualTo(0);
+        assertThat(actualServiceInfo.getAttributes()).isEmpty();
+        assertThat(actualServiceInfo.getHostname()).isEqualTo("MyHost");
+        assertThat(actualServiceInfo.getHostAddresses())
+                .isEqualTo(makeAddresses("2001:db8::1", "2001:db8::2", "2001:db8::3"));
+
+        verify(mRegistrationReceiver, times(1)).onSuccess();
+    }
+
+    @Test
+    public void registerHost_nsdManagerFails_serviceRegistrationFails() throws Exception {
+        prepareTest();
+
+        mNsdPublisher.registerHost(
+                "MyHost",
+                List.of("2001:db8::1", "2001:db8::2", "2001:db8::3"),
+                mRegistrationReceiver,
+                16 /* listenerId */);
+
+        mTestLooper.dispatchAll();
+
+        ArgumentCaptor<NsdServiceInfo> actualServiceInfoCaptor =
+                ArgumentCaptor.forClass(NsdServiceInfo.class);
+        ArgumentCaptor<NsdManager.RegistrationListener> actualRegistrationListenerCaptor =
+                ArgumentCaptor.forClass(NsdManager.RegistrationListener.class);
+
+        verify(mMockNsdManager, times(1))
+                .registerService(
+                        actualServiceInfoCaptor.capture(),
+                        eq(PROTOCOL_DNS_SD),
+                        any(),
+                        actualRegistrationListenerCaptor.capture());
+        mTestLooper.dispatchAll();
+
+        NsdServiceInfo actualServiceInfo = actualServiceInfoCaptor.getValue();
+        NsdManager.RegistrationListener actualRegistrationListener =
+                actualRegistrationListenerCaptor.getValue();
+
+        actualRegistrationListener.onRegistrationFailed(actualServiceInfo, FAILURE_INTERNAL_ERROR);
+        mTestLooper.dispatchAll();
+
+        assertThat(actualServiceInfo.getServiceName()).isNull();
+        assertThat(actualServiceInfo.getServiceType()).isNull();
+        assertThat(actualServiceInfo.getSubtypes()).isEmpty();
+        assertThat(actualServiceInfo.getPort()).isEqualTo(0);
+        assertThat(actualServiceInfo.getAttributes()).isEmpty();
+        assertThat(actualServiceInfo.getHostname()).isEqualTo("MyHost");
+        assertThat(actualServiceInfo.getHostAddresses())
+                .isEqualTo(makeAddresses("2001:db8::1", "2001:db8::2", "2001:db8::3"));
+
+        verify(mRegistrationReceiver, times(1)).onError(FAILURE_INTERNAL_ERROR);
+    }
+
+    @Test
+    public void registerHost_nsdManagerThrows_serviceRegistrationFails() throws Exception {
+        prepareTest();
+
+        doThrow(new IllegalArgumentException("NsdManager fails"))
+                .when(mMockNsdManager)
+                .registerService(any(), anyInt(), any(Executor.class), any());
+
+        mNsdPublisher.registerHost(
+                "MyHost",
+                List.of("2001:db8::1", "2001:db8::2", "2001:db8::3"),
+                mRegistrationReceiver,
+                16 /* listenerId */);
+
+        mTestLooper.dispatchAll();
+
+        verify(mRegistrationReceiver, times(1)).onError(FAILURE_INTERNAL_ERROR);
+    }
+
+    @Test
+    public void unregisterHost_nsdManagerSucceeds_serviceUnregistrationSucceeds() throws Exception {
+        prepareTest();
+
+        mNsdPublisher.registerHost(
+                "MyHost",
+                List.of("2001:db8::1", "2001:db8::2", "2001:db8::3"),
+                mRegistrationReceiver,
+                16 /* listenerId */);
+
+        mTestLooper.dispatchAll();
+
+        ArgumentCaptor<NsdServiceInfo> actualServiceInfoCaptor =
+                ArgumentCaptor.forClass(NsdServiceInfo.class);
+        ArgumentCaptor<NsdManager.RegistrationListener> actualRegistrationListenerCaptor =
+                ArgumentCaptor.forClass(NsdManager.RegistrationListener.class);
+
+        verify(mMockNsdManager, times(1))
+                .registerService(
+                        actualServiceInfoCaptor.capture(),
+                        eq(PROTOCOL_DNS_SD),
+                        any(Executor.class),
+                        actualRegistrationListenerCaptor.capture());
+
+        NsdServiceInfo actualServiceInfo = actualServiceInfoCaptor.getValue();
+        NsdManager.RegistrationListener actualRegistrationListener =
+                actualRegistrationListenerCaptor.getValue();
+
+        actualRegistrationListener.onServiceRegistered(actualServiceInfo);
+        mNsdPublisher.unregister(mUnregistrationReceiver, 16 /* listenerId */);
+        mTestLooper.dispatchAll();
+        verify(mMockNsdManager, times(1)).unregisterService(actualRegistrationListener);
+
+        actualRegistrationListener.onServiceUnregistered(actualServiceInfo);
+        mTestLooper.dispatchAll();
+        verify(mUnregistrationReceiver, times(1)).onSuccess();
+    }
+
+    @Test
+    public void unregisterHost_nsdManagerFails_serviceUnregistrationFails() throws Exception {
+        prepareTest();
+
+        mNsdPublisher.registerHost(
+                "MyHost",
+                List.of("2001:db8::1", "2001:db8::2", "2001:db8::3"),
+                mRegistrationReceiver,
+                16 /* listenerId */);
+
+        mTestLooper.dispatchAll();
+
+        ArgumentCaptor<NsdServiceInfo> actualServiceInfoCaptor =
+                ArgumentCaptor.forClass(NsdServiceInfo.class);
+        ArgumentCaptor<NsdManager.RegistrationListener> actualRegistrationListenerCaptor =
+                ArgumentCaptor.forClass(NsdManager.RegistrationListener.class);
+
+        verify(mMockNsdManager, times(1))
+                .registerService(
+                        actualServiceInfoCaptor.capture(),
+                        eq(PROTOCOL_DNS_SD),
+                        any(Executor.class),
+                        actualRegistrationListenerCaptor.capture());
+
+        NsdServiceInfo actualServiceInfo = actualServiceInfoCaptor.getValue();
+        NsdManager.RegistrationListener actualRegistrationListener =
+                actualRegistrationListenerCaptor.getValue();
+
+        actualRegistrationListener.onServiceRegistered(actualServiceInfo);
+        mNsdPublisher.unregister(mUnregistrationReceiver, 16 /* listenerId */);
+        mTestLooper.dispatchAll();
+        verify(mMockNsdManager, times(1)).unregisterService(actualRegistrationListener);
+
+        actualRegistrationListener.onUnregistrationFailed(
+                actualServiceInfo, FAILURE_INTERNAL_ERROR);
+        mTestLooper.dispatchAll();
+        verify(mUnregistrationReceiver, times(1)).onError(0);
+    }
+
+    @Test
     public void onOtDaemonDied_unregisterAll() {
         prepareTest();
 
@@ -336,11 +522,30 @@
                 actualRegistrationListenerCaptor.getAllValues().get(1);
         actualListener2.onServiceRegistered(actualServiceInfoCaptor.getValue());
 
+        mNsdPublisher.registerHost(
+                "Myhost",
+                List.of("2001:db8::1", "2001:db8::2", "2001:db8::3"),
+                mRegistrationReceiver,
+                18 /* listenerId */);
+
+        mTestLooper.dispatchAll();
+
+        verify(mMockNsdManager, times(3))
+                .registerService(
+                        actualServiceInfoCaptor.capture(),
+                        eq(PROTOCOL_DNS_SD),
+                        any(Executor.class),
+                        actualRegistrationListenerCaptor.capture());
+        NsdManager.RegistrationListener actualListener3 =
+                actualRegistrationListenerCaptor.getAllValues().get(1);
+        actualListener3.onServiceRegistered(actualServiceInfoCaptor.getValue());
+
         mNsdPublisher.onOtDaemonDied();
         mTestLooper.dispatchAll();
 
         verify(mMockNsdManager, times(1)).unregisterService(actualListener1);
         verify(mMockNsdManager, times(1)).unregisterService(actualListener2);
+        verify(mMockNsdManager, times(1)).unregisterService(actualListener3);
     }
 
     private static DnsTxtAttribute makeTxtAttribute(String name, List<Integer> value) {
@@ -356,6 +561,15 @@
         return txtAttribute;
     }
 
+    private static List<InetAddress> makeAddresses(String... addressStrings) {
+        List<InetAddress> addresses = new ArrayList<>();
+
+        for (String addressString : addressStrings) {
+            addresses.add(InetAddresses.parseNumericAddress(addressString));
+        }
+        return addresses;
+    }
+
     // @Before and @Test run in different threads. NsdPublisher requires the jobs are run on the
     // thread looper, so TestLooper needs to be created inside each test case to install the
     // correct looper.