Add new BleOnStateTest for Scan Manager Refactor changes

/*

 * 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.bluetooth;

import static com.google.common.truth.Truth.assertThat;

import static org.junit.Assume.assumeTrue;

import static org.mockito.Mockito.mock;

import android.bluetooth.le.AdvertiseCallback;

import android.bluetooth.le.AdvertiseData;

import android.bluetooth.le.AdvertiseSettings;

import android.bluetooth.le.BluetoothLeAdvertiser;

import android.bluetooth.le.BluetoothLeScanner;

import android.bluetooth.le.ScanCallback;

import android.bluetooth.le.ScanFilter;

import android.bluetooth.le.ScanResult;

import android.bluetooth.le.ScanSettings;

import android.bluetooth.test_utils.BlockingBluetoothAdapter;

import android.bluetooth.test_utils.TestUtils;

import android.content.Context;

import android.os.ParcelUuid;

import android.platform.test.annotations.RequiresFlagsDisabled;

import android.platform.test.annotations.RequiresFlagsEnabled;

import android.platform.test.flag.junit.CheckFlagsRule;

import android.platform.test.flag.junit.DeviceFlagsValueProvider;

import android.util.Log;

import androidx.test.core.app.ApplicationProvider;

import androidx.test.ext.junit.runners.AndroidJUnit4;

import com.android.bluetooth.flags.Flags;

import com.android.compatibility.common.util.AdoptShellPermissionsRule;

import org.junit.After;

import org.junit.Before;

import org.junit.Rule;

import org.junit.Test;

import org.junit.runner.RunWith;

import pandora.HostProto;

import java.util.ArrayList;

import java.util.List;

import java.util.concurrent.CompletableFuture;

import java.util.concurrent.TimeUnit;

@RunWith(AndroidJUnit4.class)

public class BleOnStateTest {

    private static final String TAG = "BleOnTest";

    private static final int TIMEOUT_ADVERTISING_MS = 1000;

    private static final int TIMEOUT_SCANNING_MS = 2000;

    private static final String TEST_UUID_STRING = "00001805-0000-1000-8000-00805f9b34fb";

    @Rule(order = 0)

    public final CheckFlagsRule mCheckFlagsRule = DeviceFlagsValueProvider.createCheckFlagsRule();

    @Rule(order = 1)

    public final AdoptShellPermissionsRule mPermissionRule = new AdoptShellPermissionsRule();

    @Rule(order = 2)

    public final PandoraDevice mBumble = new PandoraDevice();

    private final Context mContext = ApplicationProvider.getApplicationContext();

    private final BluetoothManager mManager = mContext.getSystemService(BluetoothManager.class);

    private final BluetoothAdapter mAdapter = mManager.getAdapter();

    private final BluetoothLeScanner mLeScanner = mAdapter.getBluetoothLeScanner();

    private boolean mWasBluetoothAdapterEnabled = true;

    @Before

    public void setUp() {

        assumeTrue(TestUtils.hasBluetooth());

        mWasBluetoothAdapterEnabled = mAdapter.isEnabled();

        if (mWasBluetoothAdapterEnabled) {

            assertThat(BlockingBluetoothAdapter.disable(true)).isTrue();

        }

        assertThat(BlockingBluetoothAdapter.enableBLE(true)).isTrue();

    }

    @After

    public void tearDown() {

        assumeTrue(TestUtils.hasBluetooth());

        assertThat(BlockingBluetoothAdapter.disableBLE()).isTrue();

        if (mWasBluetoothAdapterEnabled) {

            assertThat(BlockingBluetoothAdapter.enable()).isTrue();

        }

    }

    @Test

    public void confirm_stateIsBleOn() {

        assertThat(mAdapter.isEnabled()).isFalse();

        assertThat(mAdapter.isLeEnabled()).isTrue();

    }

    @Test

    public void whenScanManagerRefactorOffOrOn_scanWorks() {

        advertiseWithBumble(TEST_UUID_STRING, HostProto.OwnAddressType.PUBLIC);

        ScanFilter scanFilter =

                new ScanFilter.Builder()

                        .setServiceUuid(ParcelUuid.fromString(TEST_UUID_STRING))

                        .build();

        List<ScanResult> results =

                startScanning(

                        scanFilter, ScanSettings.CALLBACK_TYPE_ALL_MATCHES, /* isLegacy= */ true);

        assertThat(results).isNotNull();

        assertThat(results.get(0).getScanRecord().getServiceUuids().get(0))

                .isEqualTo(ParcelUuid.fromString(TEST_UUID_STRING));

        assertThat(results.get(1).getScanRecord().getServiceUuids().get(0))

                .isEqualTo(ParcelUuid.fromString(TEST_UUID_STRING));

    }

    @Test

    @RequiresFlagsDisabled(Flags.FLAG_SCAN_MANAGER_REFACTOR)

    public void whenScanManagerRefactorOff_canAdvertise() throws Exception {

        final BluetoothLeAdvertiser bluetoothLeAdvertiser = mAdapter.getBluetoothLeAdvertiser();

        AdvertiseSettings settings = new AdvertiseSettings.Builder().build();

        AdvertiseData advertiseData = new AdvertiseData.Builder().build();

        final CompletableFuture<Integer> future = new CompletableFuture<>();

        AdvertiseCallback advertiseCallback =

                new AdvertiseCallback() {

                    @Override

                    public void onStartSuccess(AdvertiseSettings settingsInEffect) {

                        future.complete(AdvertiseCallback.ADVERTISE_SUCCESS);

                    }

                    @Override

                    public void onStartFailure(int errorCode) {

                        future.complete(errorCode);

                    }

                };

        try {

            bluetoothLeAdvertiser.startAdvertising(settings, advertiseData, advertiseCallback);

            future.completeOnTimeout(null, TIMEOUT_ADVERTISING_MS, TimeUnit.MILLISECONDS).join();

            Integer advertisingResult = future.get();

            assertThat(advertisingResult).isNotNull();

            assertThat(advertisingResult).isEqualTo(AdvertiseCallback.ADVERTISE_SUCCESS);

        } finally {

            bluetoothLeAdvertiser.stopAdvertising(advertiseCallback);

        }

    }

    @Test

    @RequiresFlagsEnabled(Flags.FLAG_SCAN_MANAGER_REFACTOR)

    public void whenScanManagerRefactorOn_cantAdvertise() throws Exception {

        final BluetoothLeAdvertiser bluetoothLeAdvertiser = mAdapter.getBluetoothLeAdvertiser();

        AdvertiseSettings settings = new AdvertiseSettings.Builder().build();

        AdvertiseData advertiseData = new AdvertiseData.Builder().build();

        final CompletableFuture<Integer> future = new CompletableFuture<>();

        AdvertiseCallback advertiseCallback =

                new AdvertiseCallback() {

                    @Override

                    public void onStartSuccess(AdvertiseSettings settingsInEffect) {

                        future.complete(AdvertiseCallback.ADVERTISE_SUCCESS);

                    }

                    @Override

                    public void onStartFailure(int errorCode) {

                        future.complete(errorCode);

                    }

                };

        try {

            bluetoothLeAdvertiser.startAdvertising(settings, advertiseData, advertiseCallback);

            future.completeOnTimeout(null, TIMEOUT_ADVERTISING_MS, TimeUnit.MILLISECONDS).join();

            Integer advertisingResult = future.get();

            assertThat(advertisingResult).isNotNull();

            assertThat(advertisingResult)

                    .isEqualTo(AdvertiseCallback.ADVERTISE_FAILED_INTERNAL_ERROR);

        } finally {

            bluetoothLeAdvertiser.stopAdvertising(advertiseCallback);

        }

    }

    @Test

    @RequiresFlagsDisabled(Flags.FLAG_SCAN_MANAGER_REFACTOR)

    public void whenScanManagerRefactorOff_gattCanConnect() {

        advertiseWithBumble();

        BluetoothDevice device =

                mAdapter.getRemoteLeDevice(

                        Utils.BUMBLE_RANDOM_ADDRESS, BluetoothDevice.ADDRESS_TYPE_RANDOM);

        BluetoothGattCallback gattCallback = mock(BluetoothGattCallback.class);

        BluetoothGatt gatt = device.connectGatt(mContext, false, gattCallback);

        assertThat(gatt).isNotNull();

        gatt.close();

    }

    @Test

    @RequiresFlagsEnabled(Flags.FLAG_SCAN_MANAGER_REFACTOR)

    public void whenScanManagerRefactorOn_gattCantConnect() {

        advertiseWithBumble();

        BluetoothDevice device =

                mAdapter.getRemoteLeDevice(

                        Utils.BUMBLE_RANDOM_ADDRESS, BluetoothDevice.ADDRESS_TYPE_RANDOM);

        BluetoothGattCallback gattCallback = mock(BluetoothGattCallback.class);

        BluetoothGatt gatt = device.connectGatt(mContext, false, gattCallback);

        assertThat(gatt).isNull();

    }

    private void advertiseWithBumble() {

        HostProto.AdvertiseRequest request =

                HostProto.AdvertiseRequest.newBuilder()

                        .setLegacy(true)

                        .setConnectable(true)

                        .setOwnAddressType(HostProto.OwnAddressType.RANDOM)

                        .build();

        StreamObserverSpliterator<HostProto.AdvertiseResponse> responseObserver =

                new StreamObserverSpliterator<>();

        mBumble.host().advertise(request, responseObserver);

    }

    private void advertiseWithBumble(String serviceUuid, HostProto.OwnAddressType addressType) {

        HostProto.AdvertiseRequest.Builder requestBuilder =

                HostProto.AdvertiseRequest.newBuilder().setOwnAddressType(addressType);

        if (serviceUuid != null) {

            HostProto.DataTypes.Builder dataTypeBuilder = HostProto.DataTypes.newBuilder();

            dataTypeBuilder.addCompleteServiceClassUuids128(serviceUuid);

            requestBuilder.setData(dataTypeBuilder.build());

        }

        advertiseWithBumble(requestBuilder, true);

    }

    private void advertiseWithBumble(

            HostProto.AdvertiseRequest.Builder requestBuilder, boolean isLegacy) {

        requestBuilder.setLegacy(isLegacy);

        // Collect and ignore responses.

        StreamObserverSpliterator<HostProto.AdvertiseResponse> responseObserver =

                new StreamObserverSpliterator<>();

        mBumble.host().advertise(requestBuilder.build(), responseObserver);

    }

    private List<ScanResult> startScanning(

            ScanFilter scanFilter, int callbackType, boolean isLegacy) {

        CompletableFuture<List<ScanResult>> future = new CompletableFuture<>();

        List<ScanResult> scanResults = new ArrayList<>();

        ScanSettings scanSettings =

                new ScanSettings.Builder()

                        .setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY)

                        .setCallbackType(callbackType)

                        .setLegacy(isLegacy)

                        .build();

        ScanCallback scanCallback =

                new ScanCallback() {

                    @Override

                    public void onScanResult(int callbackType, ScanResult result) {

                        Log.i(

                                TAG,

                                "onScanResult "

                                        + "address: "

                                        + result.getDevice().getAddress()

                                        + ", connectable: "

                                        + result.isConnectable()

                                        + ", callbackType: "

                                        + callbackType

                                        + ", service uuids: "

                                        + result.getScanRecord().getServiceUuids());

                        scanResults.add(result);

                        if (callbackType != ScanSettings.CALLBACK_TYPE_ALL_MATCHES

                                || scanResults.size() > 1) {

                            future.complete(scanResults);

                        }

                    }

                    @Override

                    public void onScanFailed(int errorCode) {

                        Log.i(TAG, "onScanFailed " + "errorCode: " + errorCode);

                        future.complete(null);

                    }

                };

        mLeScanner.startScan(List.of(scanFilter), scanSettings, scanCallback);

        List<ScanResult> result =

                future.completeOnTimeout(null, TIMEOUT_SCANNING_MS, TimeUnit.MILLISECONDS).join();

        mLeScanner.stopScan(scanCallback);

        return result;

    }

}