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/*
* 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.obd2.test;
import static org.junit.Assert.*;
import com.android.car.obd2.Obd2Command;
import com.android.car.obd2.Obd2Connection;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Optional;
import org.junit.Test;
public class Obd2ConnectionTest {
private static int[] stringsToIntArray(String... strings) {
ArrayList<Integer> arrayList = new ArrayList<>();
for (String string : strings) {
string.chars().forEach(arrayList::add);
}
return arrayList.stream().mapToInt(Integer::intValue).toArray();
}
private static int[] concatIntArrays(int[] array1, int[] array2) {
int[] newArray = Arrays.copyOf(array1, array1.length + array2.length);
System.arraycopy(array2, 0, newArray, array1.length, array2.length);
return newArray;
}
private static final String[] EXPECTED_INIT_COMMANDS =
new String[] {
"ATD\r", "ATZ\r", "AT E0\r", "AT L0\r", "AT S0\r", "AT H0\r", "AT SP 0\r"
};
private static final int AIR_TEMPERATURE_PID = 0x46;
private static final int ENGINE_OIL_TEMPERATURE_PID = 0x5C;
private static final String[] EXPECTED_AIR_TEMPERATURE_COMMANDS = new String[] {"0146\r"};
private static final String[] EXPECTED_ENGINE_OIL_TEMPERATURE_COMMANDS =
new String[] {"015C\r"};
private static final String OBD2_PROMPT = ">";
private static final String[] EXPECTED_INIT_RESPONSES =
new String[] {
OBD2_PROMPT,
OBD2_PROMPT,
OBD2_PROMPT,
OBD2_PROMPT,
OBD2_PROMPT,
OBD2_PROMPT,
OBD2_PROMPT
};
private static final String[] EXPECTED_AIR_TEMPERATURE_RESPONSES =
new String[] {"41 46 A1", OBD2_PROMPT};
private static final String[] EXPECTED_ENGINE_OIL_TEMPERATURE_RESPONSES =
new String[] {"41 5C 87", OBD2_PROMPT};
@Test
public void testEstablishConnection() {
MockObd2UnderlyingTransport transport =
new MockObd2UnderlyingTransport(
stringsToIntArray(EXPECTED_INIT_COMMANDS),
stringsToIntArray(EXPECTED_INIT_RESPONSES));
Obd2Connection obd2Connection = new Obd2Connection(transport);
}
@Test
public void testAmbientAirTemperature() {
MockObd2UnderlyingTransport transport =
new MockObd2UnderlyingTransport(
concatIntArrays(
stringsToIntArray(EXPECTED_INIT_COMMANDS),
stringsToIntArray(EXPECTED_AIR_TEMPERATURE_COMMANDS)),
concatIntArrays(
stringsToIntArray(EXPECTED_INIT_RESPONSES),
stringsToIntArray(EXPECTED_AIR_TEMPERATURE_RESPONSES)));
Obd2Connection obd2Connection = new Obd2Connection(transport);
Obd2Command<Float> airTemperatureCommand =
Obd2Command.getLiveFrameCommand(Obd2Command.getFloatCommand(AIR_TEMPERATURE_PID));
Optional<Float> airTemperature = Optional.empty();
try {
airTemperature = airTemperatureCommand.run(obd2Connection);
} catch (Exception e) {
assertTrue("airTemperature caused an exception: " + e, false);
}
assertTrue(airTemperature.isPresent());
assertEquals(63.137257, (double) airTemperature.get(), 0.001);
}
@Test
public void testEngineOilTemperature() {
MockObd2UnderlyingTransport transport =
new MockObd2UnderlyingTransport(
concatIntArrays(
stringsToIntArray(EXPECTED_INIT_COMMANDS),
stringsToIntArray(EXPECTED_ENGINE_OIL_TEMPERATURE_COMMANDS)),
concatIntArrays(
stringsToIntArray(EXPECTED_INIT_RESPONSES),
stringsToIntArray(EXPECTED_ENGINE_OIL_TEMPERATURE_RESPONSES)));
Obd2Connection obd2Connection = new Obd2Connection(transport);
Obd2Command<Integer> engineOilTemperatureCommand =
Obd2Command.getLiveFrameCommand(
Obd2Command.getIntegerCommand(ENGINE_OIL_TEMPERATURE_PID));
Optional<Integer> engineOilTemperature = Optional.empty();
try {
engineOilTemperature = engineOilTemperatureCommand.run(obd2Connection);
} catch (Exception e) {
assertTrue("engineOilTemperature caused an exception: " + e, false);
}
assertTrue(engineOilTemperature.isPresent());
assertEquals(95, (int) engineOilTemperature.get());
}
}
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