File indexing completed on 2024-04-14 14:12:12 

0001 /*
0002     SPDX-FileCopyrightText: 2021 Hy Murveit <hy@murveit.com>
0003 
0004     SPDX-License-Identifier: GPL-2.0-or-later
0005 */
0006 
0007 /*
0008  * This file contains unit tests for the GreatCircle class.
0009  */
0010 
0011 #include <QObject>
0012 #include <QTest>
0013 #include <cmath>
0014 #include <memory>
0015 
0016 #include "greatcircle.h"
0017 
0018 class TestGreatCircle : public QObject
0019 {
0020         Q_OBJECT
0021 
0022     public:
0023         /** @short Constructor */
0024         TestGreatCircle();
0025 
0026         /** @short Destructor */
0027         ~TestGreatCircle() override = default;
0028 
0029     private slots:
0030         void greatCircleTest_data();
0031         void greatCircleTest();
0032 
0033     private:
0034 };
0035 
0036 // This include must go after the class declaration.
0037 #include "testgreatcircle.moc"
0038 
0039 TestGreatCircle::TestGreatCircle() : QObject()
0040 {
0041 }
0042 
0043 namespace
0044 {
0045 
0046 // Tests that the doubles are within tolerance.
0047 bool compareFloat(double d1, double d2, double tolerance = .0001)
0048 {
0049     return (fabs(d1 - d2) < tolerance);
0050 }
0051 
0052 }  // namespace
0053 
0054 void TestGreatCircle::greatCircleTest_data()
0055 {
0056     QTest::addColumn<double>("AZ1");
0057     QTest::addColumn<double>("ALT1");
0058     QTest::addColumn<double>("AZ2");
0059     QTest::addColumn<double>("ALT2");
0060     QTest::addColumn<double>("FRACTION");
0061     QTest::addColumn<double>("AZ_SOLUTION");
0062     QTest::addColumn<double>("ALT_SOLUTION");
0063 
0064     // These tests are actually longitude/latitude as opposed to az/alt.
0065     QTest::newRow("SF_TO_NYC_half")
0066             << -122.420 << 37.770 << -74.010 << 40.710 << 0.50 << -98.754805 << 41.842196;
0067     QTest::newRow("SF_TO_PARIS_half")
0068             << -122.420 << 37.770 <<   2.350 << 48.860 << 0.50 << -69.959876 << 63.476436;
0069     QTest::newRow("SF_TO_PARIS_0")
0070             << -122.420 << 37.770 <<   2.350 << 48.860 << 0.0  << -122.420   << 37.770;
0071     QTest::newRow("SF_TO_PARIS_1")
0072             << -122.420 << 37.770 <<   2.350 << 48.860 << 1.0  <<    2.350   << 48.860;
0073 }
0074 
0075 void TestGreatCircle::greatCircleTest()
0076 {
0077     QFETCH(double, AZ1);
0078     QFETCH(double, ALT1);
0079     QFETCH(double, AZ2);
0080     QFETCH(double, ALT2);
0081     QFETCH(double, FRACTION);
0082     QFETCH(double, AZ_SOLUTION);
0083     QFETCH(double, ALT_SOLUTION);
0084     GreatCircle gc(AZ1, ALT1, AZ2, ALT2);
0085     double az, alt;
0086     gc.waypoint(FRACTION, &az, &alt);
0087     QVERIFY(compareFloat(az, AZ_SOLUTION));
0088     QVERIFY(compareFloat(alt, ALT_SOLUTION));
0089 }
0090 
0091 QTEST_GUILESS_MAIN(TestGreatCircle)