我有一个位置跟踪服务,我正在尝试进行单元测试。我正在尝试使用locationManager.addTestProvider和setTestProviderLocation方法来实现这一点。但是,我似乎无法通过提供程序获取任何位置并点击我的LocationListener。这是我的代码:
public void testGettingLocations() {
mLocationManager = (LocationManager)mContext.getSystemService(Context.LOCATION_SERVICE);
if (mLocationManager.getProvider(TEST_PROVIDER) != null) {
mLocationManager.removeTestProvider(TEST_PROVIDER);
}
mLocationManager.addTestProvider(TEST_PROVIDER, false, false, false, false, false, false, false, Criteria.POWER_LOW, Criteria.ACCURACY_FINE);
mLocationManager.setTestProviderEnabled(TEST_PROVIDER, true);
mLocationManager.setTestProviderStatus(TEST_PROVIDER, LocationProvider.AVAILABLE, null, System.currentTimeMillis());
locations = new ArrayList<Location>();
mLocationManager.requestLocationUpdates(TEST_PROVIDER, 0, 0, ll);
for (int i = 0; i<130; i++) {
Location loc = new Location(TEST_PROVIDER);
loc.setLatitude(0 + i);
loc.setLongitude(130 - i);
loc.setTime(System.currentTimeMillis());
loc.setSpeed(0);
loc.setAccuracy(25);
loc.setAltitude(0);
loc.setBearing(0);
mLocationManager.setTestProviderLocation(TEST_PROVIDER, loc);
}
assertEquals(130, locations.size());
}
LocationListener ll = new LocationListener() {
@Override
public void onStatusChanged(String provider, int status, Bundle extras) { }
@Override
public void onProviderEnabled(String provider) {}
@Override
public void onProviderDisabled(String provider) {}
@Override
public void onLocationChanged(Location location) {
locations.add(location);
Log.d("TEST", "lat: " + location.getLatitude() + ", lon: " + location.getLongitude());
}
};
断言失败,因为locations.size()返回0,并且我的locationlistener中的日志语句永远不会被打印。
有没有人使用这些方法成功测试位置服务?
答案 0 :(得分:5)
在进行以下修改后,我能够将@ ingsaurabh的示例用于单元测试:
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.net.Socket;
import java.net.UnknownHostException;
public final class TestLocationProvider {
static void sendLocation(double latitude, double longitude) {
try {
Socket socket = new Socket("10.0.2.2", 5554); // usually 5554
socket.setKeepAlive(true);
String str = "geo fix " + longitude + " " + latitude ;
Writer w = new OutputStreamWriter(socket.getOutputStream());
w.write(str + "\r\n");
w.flush();
}
catch (UnknownHostException e) {
throw new RuntimeException(e);
}
catch (IOException e) {
throw new RuntimeException(e);
}
}
}
重要的细节是IP地址。模拟器不会将“localhost”识别为有效的主机名。
答案 1 :(得分:4)
嗨,在我的第一个基于GPS的项目中,我遇到了同样的问题,所以我写了一个java代码,它将GPS Fix发送到我的android模拟器下面是片段。
import java.io.IOException;
import java.io.PrintStream;
import java.net.Socket;
import java.net.UnknownHostException;
public class Main {
static final int PAUSE = 4000; // ms
static final float START_LONGITUDE = 51, START_LATITUDE = -1.3f;
static final int NO_SAMPLE = 100;
static final float DELTA_LONGITUDE = 0.000005f, DELTA_LADITUDE = 0.000005f;
public static void main(String[] args) {
try {
Socket socket = new Socket("localhost", 5554); // usually 5554
PrintStream out = new PrintStream(socket.getOutputStream());
float longitude = START_LONGITUDE, latitude = START_LATITUDE;
String str;
for (int i = 0; i < NO_SAMPLE; i++) {
str = "geo fix " + latitude + " " + longitude + "\n";
out.print(str);
System.out.print(str);
Thread.sleep(PAUSE);
longitude += DELTA_LONGITUDE;
latitude += DELTA_LADITUDE;
}
} catch (UnknownHostException e) {
System.exit(-1);
} catch (IOException e) {
System.exit(-1);
} catch (InterruptedException e) {
System.exit(-1);
}
}
}