Extend unit-test for route-manager waypoint selection

SF-Ticket: https://sourceforge.net/p/flightgear/codetickets/2372/

test_suite/unit_tests/Navaids/test_routeManager.cxx

@@ -867,6 +867,36 @@ void RouteManagerTests::testsSelectNavaid()
     CPPUNIT_ASSERT_EQUAL(wp2->source()->name(), string{"BRYANSK NDB"});
 }
 
+void RouteManagerTests::testsSelectWaypoint()
+{
+    // another part of the issue at
+    // https://sourceforge.net/p/flightgear/codetickets/2372/
+
+    auto rm = globals->get_subsystem<FGRouteMgr>();
+
+    FlightPlanRef f = new FlightPlan;
+    rm->setFlightPlan(f);
+
+    auto rmNode = globals->get_props()->getNode("autopilot/route-manager", true);
+    rmNode->setStringValue("input", "70N,015E");
+    rmNode->setStringValue("input", "55N,015E");
+    rmNode->setStringValue("input", "@INSERT1:OSS");
+    rmNode->setStringValue("input", "@INSERT2:BOR");
+
+    auto leg = f->legAtIndex(1);
+    auto wp1 = leg->waypoint();
+    CPPUNIT_ASSERT_EQUAL(wp1->ident(), string{"OSS"});
+    CPPUNIT_ASSERT_EQUAL(wp1->source()->name(), string{"OSTERSUND VOR-DME"});
+
+    //   CPPUNIT_ASSERT_DOUBLES_EQUAL(227, leg->courseDeg(), 0.5);
+    //  CPPUNIT_ASSERT_DOUBLES_EQUAL(59, leg->distanceNm(), 0.5);
+
+    leg = f->legAtIndex(2);
+    auto wp2 = leg->waypoint();
+    CPPUNIT_ASSERT_EQUAL(wp2->ident(), string{"BOR"});
+    CPPUNIT_ASSERT_EQUAL(wp2->source()->name(), string{"BORLANGE VOR-DME"});
+}
+
 void RouteManagerTests::testCommandAPI()
 {
     auto rm = globals->get_subsystem<FGRouteMgr>();

test_suite/unit_tests/Navaids/test_routeManager.hxx

@@ -46,6 +46,7 @@ class RouteManagerTests : public CppUnit::TestFixture
     CPPUNIT_TEST(testRouteWithApproachProcedures);
     CPPUNIT_TEST(testsSelectNavaid);
     CPPUNIT_TEST(testCommandAPI);
+    CPPUNIT_TEST(testsSelectWaypoint);
 
     CPPUNIT_TEST_SUITE_END();
 
@@ -74,6 +75,7 @@ public:
     void testRouteWithApproachProcedures();
     void testsSelectNavaid();
     void testCommandAPI();
+    void testsSelectWaypoint();
 
 private:
     GPS* m_gps = nullptr;