1 files changed, 43 insertions, 0 deletions
diff --git a/test/level_calculator_test.cc b/test/level_calculator_test.cc
new file mode 100644
index 000000000..828f834b4
--- /dev/null
+++ b/test/level_calculator_test.cc
@@ -0,0 +1,43 @@
+/*
+    Copyright (C) 2025 Carl Hetherington <cth@carlh.net>
+
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    DCP-o-matic is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+
+#include "lib/audio_buffers.h"
+#include "lib/level_calculator.h"
+#include <boost/test/unit_test.hpp>
+
+
+using std::make_shared;
+
+
+BOOST_AUTO_TEST_CASE(level_calculator_falloff_correct)
+{
+	auto pulse = make_shared<AudioBuffers>(6, 96000);
+	pulse->make_silent();
+
+	pulse->data()[0][0] = 1;
+
+	LevelCalculator calc(30, 15);
+	calc.enable(true);
+	calc.put(pulse, {}, 48000);
+
+	BOOST_CHECK_CLOSE(calc.get(dcpomatic::DCPTime::from_frames(31, 30))[0], pow(10, -15.0 / 20), 0.0001);
+}
+