tests/vehiclehal_test/src/com/android/car/vehiclehal/test/Obd2FreezeFrameTest.java

/*
 * Copyright (C) 2017 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.car.vehiclehal.test;

import static com.android.car.vehiclehal.test.Utils.isVhalPropertyAvailable;
import static com.android.car.vehiclehal.test.Utils.readVhalProperty;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assume.assumeTrue;

import android.hardware.automotive.vehicle.V2_0.IVehicle;
import android.hardware.automotive.vehicle.V2_0.StatusCode;
import android.hardware.automotive.vehicle.V2_0.VehiclePropValue;
import android.hardware.automotive.vehicle.V2_0.VehicleProperty;
import android.os.RemoteException;
import android.util.Log;

import com.android.car.vehiclehal.VehiclePropValueBuilder;

import org.junit.Before;
import org.junit.Test;

/** Test retrieving the OBD2_FREEZE_FRAME property from VHAL */
public class Obd2FreezeFrameTest {
    private static final String TAG = Utils.concatTag(Obd2FreezeFrameTest.class);

    private IVehicle mVehicle = null;

    @Before
    public void setUp() throws Exception {
        mVehicle = Utils.getVehicle();
        assumeTrue("Freeze frame not available, test-case ignored.", isFreezeFrameAvailable());
    }

    @Test
    public void testFreezeFrame() throws RemoteException {
        readVhalProperty(
                mVehicle,
                VehicleProperty.OBD2_FREEZE_FRAME_INFO,
                (Integer status, VehiclePropValue value) -> {
                    assertEquals(StatusCode.OK, status.intValue());
                    assertNotNull("OBD2_FREEZE_FRAME_INFO is supported; should not be null", value);
                    Log.i(TAG, "dump of OBD2_FREEZE_FRAME_INFO:\n" + value);
                    for(long timestamp: value.value.int64Values) {
                      Log.i(TAG, "timestamp: " + timestamp);
                      readVhalProperty(
                          mVehicle,
                          VehiclePropValueBuilder.newBuilder(VehicleProperty.OBD2_FREEZE_FRAME)
                                .setInt64Value(timestamp)
                                .build(),
                          (Integer frameStatus, VehiclePropValue freezeFrame) -> {
                              if (StatusCode.OK == frameStatus.intValue()) {
                                  assertNotNull("OBD2_FREEZE_FRAME read OK; should not be null",
                                          freezeFrame);
                                  Log.i(TAG, "dump of OBD2_FREEZE_FRAME:\n" + freezeFrame);
                                  assertEquals(freezeFrame.timestamp, timestamp);
                              }
                              return true;
                          });
                    }
                    return true;
                });
    }

    private boolean isFreezeFrameAvailable() throws RemoteException {
        return isVhalPropertyAvailable(mVehicle, VehicleProperty.OBD2_FREEZE_FRAME) &&
            isVhalPropertyAvailable(mVehicle, VehicleProperty.OBD2_FREEZE_FRAME_INFO);
    }
}