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flightgear/test_suite/unit_tests/Instrumentation/test_dme.cxx
2023-07-21 16:33:48 +01:00

120 lines
3.4 KiB
C++

#include "test_dme.hxx"
#include <cstring>
#include <memory>
#include "test_suite/FGTestApi/NavDataCache.hxx"
#include "test_suite/FGTestApi/TestPilot.hxx"
#include "test_suite/FGTestApi/testGlobals.hxx"
#include <Airports/airport.hxx>
#include <Navaids/NavDataCache.hxx>
#include <Navaids/navlist.hxx>
#include <Navaids/navrecord.hxx>
#include <Instrumentation/dme.hxx>
#include <Main/fg_props.hxx>
// Set up function for each test.
void DMEReceiverTests::setUp()
{
FGTestApi::setUp::initTestGlobals("navradio");
FGTestApi::setUp::initNavDataCache();
}
// Clean up after each test.
void DMEReceiverTests::tearDown()
{
FGTestApi::tearDown::shutdownTestGlobals();
}
void DMEReceiverTests::setPositionAndStabilise(DME* r, const SGGeod& g)
{
FGTestApi::setPosition(g);
for (int i = 0; i < 60; ++i) {
r->update(0.1);
}
}
SGSharedPtr<DME> DMEReceiverTests::setupStandardDME()
{
SGPropertyNode_ptr configNode(new SGPropertyNode);
configNode->setStringValue("name", "dmetest");
configNode->setIntValue("number", 2);
return new DME(configNode);
}
void DMEReceiverTests::testBasic()
{
SGSharedPtr<DME> r = setupStandardDME();
// set a source string pointing at a fictious nav-receiver
fgSetString("/instrumentation/dmetest[2]/frequencies/source",
"/instrumentation/nav[0]/frequencies/selected-mhz");
r->bind();
r->init();
globals->get_subsystem_mgr()->add("dme", r.get());
auto arlanda = fgFindAirportID("ESSA");
// set the nav frequency
fgSetDouble("/instrumentation/nav[0]/frequencies/selected-mhz", 113.30);
SGPropertyNode_ptr node = globals->get_props()->getNode("instrumentation/dmetest[2]");
node->setBoolValue("serviceable", true);
fgSetDouble("systems/electrical/outputs/dme[2]", 12.0);
setPositionAndStabilise(r.get(), arlanda->geod());
CPPUNIT_ASSERT_EQUAL(true, node->getBoolValue("in-range"));
CPPUNIT_ASSERT_DOUBLES_EQUAL(4.4, node->getDoubleValue("indicated-distance-nm"), 0.1);
// fly towards the station at constant speed
auto pilot = SGSharedPtr<FGTestApi::TestPilot>(new FGTestApi::TestPilot);
pilot->setSpeedKts(150);
FGPositioned::TypeFilter f{FGPositioned::DME};
FGNavRecordRef arlandaDME = fgpositioned_cast<FGNavRecord>(
FGPositioned::findClosestWithIdent("ANE", arlanda->geod(), &f));
const double trueCourseToANE = SGGeodesy::courseDeg(arlanda->geod(), arlandaDME->geod());
pilot->setCourseTrue(trueCourseToANE);
FGTestApi::runForTime(30.0);
CPPUNIT_ASSERT_DOUBLES_EQUAL(150, node->getDoubleValue("indicated-ground-speed-kt"), 0.5);
// should have travelled (150 / 3600 * 30 ) = 1.25nm
CPPUNIT_ASSERT_DOUBLES_EQUAL(3.15, node->getDoubleValue("indicated-distance-nm"), 0.1);
}
void DMEReceiverTests::testRCFN_04DME()
{
// disabled pending discussion about the data for this one
return;
auto rcfn = fgFindAirportID("RCFN");
auto dmeReceiver = setupStandardDME();
FGRunwayRef rwy04 = rcfn->getRunwayByIdent("04");
FGPositioned::TypeFilter filter(FGPositioned::DME);
auto matches = FGPositioned::findAllWithIdent("IFNN", &filter);
FGPositioned::sortByRange(matches, rcfn->geod());
CPPUNIT_ASSERT(!matches.empty());
// should be size two, really
auto station = fgpositioned_cast<FGNavRecord>(matches.front());
CPPUNIT_ASSERT(station);
CPPUNIT_ASSERT_DOUBLES_EQUAL(110.9, station->get_freq(), 0.01);
}