| /* |
| * Copyright (C) 2015 Google Inc. |
| * |
| * 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.location.cts; |
| |
| import android.location.GnssMeasurement; |
| import android.location.GnssMeasurementsEvent; |
| import android.location.GpsStatus; |
| import android.test.AndroidTestCase; |
| import android.util.Log; |
| |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.List; |
| |
| /** |
| * Test for {@link GnssMeasurement} without a location fix. |
| * |
| * Test steps: |
| * 1. Clear A-GPS: this ensures that the device is not in a warm mode and it has 4+ satellites |
| * acquired already. |
| * 2. Register a listener for: |
| * - {@link GnssMeasurementsEvent}s, |
| * - location updates and |
| * - {@link GpsStatus} events. |
| * 3. Wait for {@link TestGpsStatusListener#TIMEOUT_IN_SEC}. |
| * 4. Check {@link GnssMeasurementsEvent} status: if the status is not |
| * {@link GnssMeasurementsEvent#STATUS_READY}, the test will be skipped because one of the |
| * following reasons: |
| * 4.1 the device does not support the feature, |
| * 4.2 GPS is disabled in the device, |
| * 4.3 Location is disabled in the device. |
| * 4. Check whether the device is deep indoor. This is done by performing the following steps: |
| * 4.1 If no {@link GpsStatus} is received this will mean that the device is located |
| * indoor. The test will be skipped. |
| * 5. When the device is not indoor, verify that we receive {@link GnssMeasurementsEvent}s before |
| * a GPS location is calculated, and reported by GPS HAL. If {@link GnssMeasurementsEvent}s are |
| * only received after a location update is received: |
| * 4.1.1 The test will pass with a warning for the M release. |
| * 4.1.2 The test might fail in a future Android release, when this requirement becomes |
| * mandatory. |
| 5. If {@link GnssMeasurementsEvent}s are received: verify all mandatory fields, the test will fail |
| if any of the mandatory fields is not populated or in the expected range. |
| */ |
| public class GnssMeasurementWhenNoLocationTest extends AndroidTestCase { |
| |
| private static final String TAG = "GnssMeasWhenNoFixTest"; |
| private TestGnssMeasurementListener mMeasurementListener; |
| private TestLocationManager mTestLocationManager; |
| private TestGpsStatusListener mGpsStatusListener; |
| private TestLocationListener mLocationListener; |
| private static final int EVENTS_COUNT = 5; |
| private static final int GPS_RAW_EVENTS_COUNT = 1; |
| // Command to delete cached A-GPS data to get a truer GPS fix. |
| private static final String AGPS_DELETE_COMMAND = "delete_aiding_data"; |
| |
| @Override |
| protected void setUp() throws Exception { |
| super.setUp(); |
| |
| mTestLocationManager = new TestLocationManager(getContext()); |
| } |
| |
| @Override |
| protected void tearDown() throws Exception { |
| // Unregister listeners |
| if (mLocationListener != null) { |
| mTestLocationManager.removeLocationUpdates(mLocationListener); |
| } |
| if (mMeasurementListener != null) { |
| mTestLocationManager.unregisterGnssMeasurementCallback(mMeasurementListener); |
| } |
| if (mGpsStatusListener != null) { |
| mTestLocationManager.removeGpsStatusListener(mGpsStatusListener); |
| } |
| super.tearDown(); |
| } |
| |
| /** |
| * Test GPS measurements without a location fix. |
| */ |
| public void testGnssMeasurementWhenNoLocation() throws Exception { |
| if (!TestMeasurementUtil.canTestRunOnCurrentDevice(mTestLocationManager)) { |
| return; |
| } |
| |
| // Clear A-GPS and skip the test if the operation fails. |
| if (!mTestLocationManager.sendExtraCommand(AGPS_DELETE_COMMAND)) { |
| Log.i(TAG, "A-GPS failed to clear. Skip test."); |
| return; |
| } |
| |
| // Register for GPS measurements. |
| mMeasurementListener = new TestGnssMeasurementListener(TAG, GPS_RAW_EVENTS_COUNT); |
| mTestLocationManager.registerGnssMeasurementCallback(mMeasurementListener); |
| |
| // Register for Gps Status updates. |
| mGpsStatusListener = new TestGpsStatusListener(EVENTS_COUNT, mTestLocationManager); |
| mTestLocationManager.addGpsStatusListener(mGpsStatusListener); |
| |
| // Register for location updates. |
| mLocationListener = new TestLocationListener(EVENTS_COUNT); |
| mTestLocationManager.requestLocationUpdates(mLocationListener); |
| |
| // Wait for Gps Status updates. |
| assertTrue(mGpsStatusListener.await()); |
| if (!mMeasurementListener.verifyState()) { |
| return; |
| } |
| if (!mGpsStatusListener.isGpsStatusReceived()) { |
| Log.i(TAG, "No Satellites are visible. Device may be Indoor. Skip test."); |
| return; |
| } |
| |
| List<GnssMeasurementsEvent> events = mMeasurementListener.getEvents(); |
| Log.i(TAG, "Number of GPS measurement events received = " + events.size()); |
| |
| // If device is not indoor, verify that we receive GPS measurements before being able to |
| // calculate the position solution and verify that mandatory fields of GnssMeasurement are |
| // in expected ranges. |
| GnssMeasurementsEvent firstEvent = events.get(0); |
| Collection<GnssMeasurement> gpsMeasurements = firstEvent.getMeasurements(); |
| int satelliteCount = gpsMeasurements.size(); |
| int[] gpsPrns = new int[satelliteCount]; |
| int i = 0; |
| for (GnssMeasurement measurement : gpsMeasurements) { |
| gpsPrns[i] = measurement.getSvid(); |
| ++i; |
| } |
| |
| Log.i(TAG, "Gps Measurements 1st Event PRNs=" + Arrays.toString(gpsPrns)); |
| SoftAssert softAssert = new SoftAssert(TAG); |
| long timeInNs = firstEvent.getClock().getTimeNanos(); |
| softAssert.assertTrue("GPS measurement satellite count not in expected range. ", |
| timeInNs, // event time in ns |
| "satelliteCount > 0", // expected value |
| Integer.toString(satelliteCount), // actual value |
| satelliteCount > 0); // condition |
| |
| // TODO: this verification should be enforced for all types of GPS clocks |
| softAssert.assertTrueAsWarning("timeInNs:", |
| timeInNs, // event time in ns |
| "timeInNs > 0", // expected value |
| Long.toString(timeInNs), // actual value |
| timeInNs > 0L); // condition |
| |
| // Verify mandatory fields of GnssMeasurement |
| for (GnssMeasurement measurement : gpsMeasurements) { |
| TestMeasurementUtil.assertAllGnssMeasurementMandatoryFields(measurement, |
| softAssert, timeInNs); |
| } |
| softAssert.assertAll(); |
| } |
| } |