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      1 /*
      2  * Copyright (C) 2019 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include <Utils.h>
     18 #include "gtest/gtest.h"
     19 
     20 namespace android {
     21 namespace hardware {
     22 namespace gnss {
     23 namespace common {
     24 
     25 using V1_0::GnssConstellationType;
     26 using V1_0::GnssLocationFlags;
     27 
     28 void Utils::checkLocation(const GnssLocation& location, bool check_speed,
     29                           bool check_more_accuracies) {
     30     EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_LAT_LONG);
     31     EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_ALTITUDE);
     32     if (check_speed) {
     33         EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_SPEED);
     34     }
     35     EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_HORIZONTAL_ACCURACY);
     36     // New uncertainties available in O must be provided,
     37     // at least when paired with modern hardware (2017+)
     38     if (check_more_accuracies) {
     39         EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_VERTICAL_ACCURACY);
     40         if (check_speed) {
     41             EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_SPEED_ACCURACY);
     42             if (location.gnssLocationFlags & GnssLocationFlags::HAS_BEARING) {
     43                 EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_BEARING_ACCURACY);
     44             }
     45         }
     46     }
     47     EXPECT_GE(location.latitudeDegrees, -90.0);
     48     EXPECT_LE(location.latitudeDegrees, 90.0);
     49     EXPECT_GE(location.longitudeDegrees, -180.0);
     50     EXPECT_LE(location.longitudeDegrees, 180.0);
     51     EXPECT_GE(location.altitudeMeters, -1000.0);
     52     EXPECT_LE(location.altitudeMeters, 30000.0);
     53     if (check_speed) {
     54         EXPECT_GE(location.speedMetersPerSec, 0.0);
     55         EXPECT_LE(location.speedMetersPerSec, 5.0);  // VTS tests are stationary.
     56 
     57         // Non-zero speeds must be reported with an associated bearing
     58         if (location.speedMetersPerSec > 0.0) {
     59             EXPECT_TRUE(location.gnssLocationFlags & GnssLocationFlags::HAS_BEARING);
     60         }
     61     }
     62 
     63     /*
     64      * Tolerating some especially high values for accuracy estimate, in case of
     65      * first fix with especially poor geometry (happens occasionally)
     66      */
     67     EXPECT_GT(location.horizontalAccuracyMeters, 0.0);
     68     EXPECT_LE(location.horizontalAccuracyMeters, 250.0);
     69 
     70     /*
     71      * Some devices may define bearing as -180 to +180, others as 0 to 360.
     72      * Both are okay & understandable.
     73      */
     74     if (location.gnssLocationFlags & GnssLocationFlags::HAS_BEARING) {
     75         EXPECT_GE(location.bearingDegrees, -180.0);
     76         EXPECT_LE(location.bearingDegrees, 360.0);
     77     }
     78     if (location.gnssLocationFlags & GnssLocationFlags::HAS_VERTICAL_ACCURACY) {
     79         EXPECT_GT(location.verticalAccuracyMeters, 0.0);
     80         EXPECT_LE(location.verticalAccuracyMeters, 500.0);
     81     }
     82     if (location.gnssLocationFlags & GnssLocationFlags::HAS_SPEED_ACCURACY) {
     83         EXPECT_GT(location.speedAccuracyMetersPerSecond, 0.0);
     84         EXPECT_LE(location.speedAccuracyMetersPerSecond, 50.0);
     85     }
     86     if (location.gnssLocationFlags & GnssLocationFlags::HAS_BEARING_ACCURACY) {
     87         EXPECT_GT(location.bearingAccuracyDegrees, 0.0);
     88         EXPECT_LE(location.bearingAccuracyDegrees, 360.0);
     89     }
     90 
     91     // Check timestamp > 1.48e12 (47 years in msec - 1970->2017+)
     92     EXPECT_GT(location.timestamp, 1.48e12);
     93 }
     94 
     95 const MeasurementCorrections Utils::getMockMeasurementCorrections() {
     96     ReflectingPlane reflectingPlane = {
     97             .latitudeDegrees = 37.4220039,
     98             .longitudeDegrees = -122.0840991,
     99             .altitudeMeters = 250.35,
    100             .azimuthDegrees = 203.0,
    101     };
    102 
    103     SingleSatCorrection singleSatCorrection1 = {
    104             .singleSatCorrectionFlags = GnssSingleSatCorrectionFlags::HAS_SAT_IS_LOS_PROBABILITY |
    105                                         GnssSingleSatCorrectionFlags::HAS_EXCESS_PATH_LENGTH |
    106                                         GnssSingleSatCorrectionFlags::HAS_EXCESS_PATH_LENGTH_UNC |
    107                                         GnssSingleSatCorrectionFlags::HAS_REFLECTING_PLANE,
    108             .constellation = GnssConstellationType::GPS,
    109             .svid = 12,
    110             .carrierFrequencyHz = 1.59975e+09,
    111             .probSatIsLos = 0.50001,
    112             .excessPathLengthMeters = 137.4802,
    113             .excessPathLengthUncertaintyMeters = 25.5,
    114             .reflectingPlane = reflectingPlane,
    115     };
    116     SingleSatCorrection singleSatCorrection2 = {
    117             .singleSatCorrectionFlags = GnssSingleSatCorrectionFlags::HAS_SAT_IS_LOS_PROBABILITY |
    118                                         GnssSingleSatCorrectionFlags::HAS_EXCESS_PATH_LENGTH |
    119                                         GnssSingleSatCorrectionFlags::HAS_EXCESS_PATH_LENGTH_UNC,
    120             .constellation = GnssConstellationType::GPS,
    121             .svid = 9,
    122             .carrierFrequencyHz = 1.59975e+09,
    123             .probSatIsLos = 0.873,
    124             .excessPathLengthMeters = 26.294,
    125             .excessPathLengthUncertaintyMeters = 10.0,
    126     };
    127 
    128     hidl_vec<SingleSatCorrection> singleSatCorrections = {singleSatCorrection1,
    129                                                           singleSatCorrection2};
    130     MeasurementCorrections mockCorrections = {
    131             .latitudeDegrees = 37.4219999,
    132             .longitudeDegrees = -122.0840575,
    133             .altitudeMeters = 30.60062531,
    134             .horizontalPositionUncertaintyMeters = 9.23542,
    135             .verticalPositionUncertaintyMeters = 15.02341,
    136             .toaGpsNanosecondsOfWeek = 2935633453L,
    137             .satCorrections = singleSatCorrections,
    138     };
    139     return mockCorrections;
    140 }
    141 
    142 }  // namespace common
    143 }  // namespace gnss
    144 }  // namespace hardware
    145 }  // namespace android
    146