temporal: add & use a couple of TempMap methods for unit testing

libs/temporal/tempo.cc

@@ -2614,6 +2614,37 @@ TempoMap::dump (std::ostream& ostr) const
 	ostr << "------------\n\n\n";
 }
 
+Points::size_type
+TempoMap::count_tempos_in_points () const
+{
+	Points::size_type n = 0;
+
+	for (Points::const_iterator p = _points.begin(); p != _points.end(); ++p) {
+		if (dynamic_cast<MusicTimePoint const *> (&(*p))) {
+			/* ignore */
+		} else if (dynamic_cast<TempoPoint const *> (&(*p))) {
+			++n;
+		}
+	}
+	return n;
+}
+
+Points::size_type
+TempoMap::count_meters_in_points () const
+{
+	Points::size_type n = 0;
+
+	for (Points::const_iterator p = _points.begin(); p != _points.end(); ++p) {
+		if (dynamic_cast<MusicTimePoint const *> (&(*p))) {
+			/* ignore */
+		} else if (dynamic_cast<MeterPoint const *> (&(*p))) {
+			++n;
+		}
+	}
+	return n;
+}
+
+
 template<class const_traits_t>  typename const_traits_t::iterator_type
 TempoMap::_get_tempo_and_meter (typename const_traits_t::tempo_point_type & tp,
                                 typename const_traits_t::meter_point_type & mp,

libs/temporal/temporal/tempo.h

@@ -741,6 +741,10 @@ class /*LIBTEMPORAL_API*/ TempoMap : public PBD::StatefulDestructible
 	static thread_local SharedPtr _tempo_map_p;
 	static SerializedRCUManager<TempoMap> _map_mgr;
 	static bool fetch_condition ();
+  public:
+	/* These are only for use in unit tests */
+	Points::size_type count_tempos_in_points() const;
+	Points::size_type count_meters_in_points() const;
   public:
 	LIBTEMPORAL_API static void init ();
 

libs/temporal/test/TempoMapTest.cc

@@ -50,6 +50,8 @@ TempoMapTest::addRemoveTest()
 	tmap->dump (std::cout);
 
 	CPPUNIT_ASSERT (tmap->tempo_at (BBT_Argument (8, 1, 0)).note_types_per_minute() == Tempo (64, 4).note_types_per_minute());
+	CPPUNIT_ASSERT (tmap->count_tempos_in_points () == 3);
+	CPPUNIT_ASSERT (tmap->count_meters_in_points () == 3);
 
 	tmap->abort_update ();
 }