--- /dev/null
+/*
+ Copyright (C) 2015 Carl Hetherington <cth@carlh.net>
+
+ This program 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.
+
+ This program 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 this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "vertical_position.h"
+#include <boost/test/unit_test.hpp>
+
+using boost::optional;
+
+/* Test operator< for VerticalPosition */
+BOOST_AUTO_TEST_CASE (vertical_position_test)
+{
+ sub::VerticalPosition a;
+ sub::VerticalPosition b;
+
+ /* Simple */
+
+ a.proportional = 0.3;
+ a.reference = sub::TOP_OF_SCREEN;
+ b.proportional = 0.4;
+ b.reference = sub::TOP_OF_SCREEN;
+ BOOST_CHECK (a < b);
+
+ a.proportional = 0.5;
+ a.reference = sub::TOP_OF_SCREEN;
+ b.proportional = 0.1;
+ b.reference = sub::TOP_OF_SCREEN;
+ BOOST_CHECK (b < a);
+
+ a.proportional = optional<float> ();
+ b.proportional = optional<float> ();
+
+ a.line = 4;
+ a.lines = 25;
+ a.reference = sub::TOP_OF_SCREEN;
+ b.line = 6;
+ b.lines = 25;
+ b.reference = sub::TOP_OF_SCREEN;
+ BOOST_CHECK (a < b);
+
+ a.line = 17;
+ a.lines = 25;
+ a.reference = sub::TOP_OF_SCREEN;
+ b.line = 2;
+ b.lines = 25;
+ b.reference = sub::TOP_OF_SCREEN;
+ BOOST_CHECK (b < a);
+
+ /* Different reference points with proportional */
+
+ a.line = optional<int> ();
+ a.lines = optional<int> ();
+ b.line = optional<int> ();
+ b.lines = optional<int> ();
+
+ a.proportional = 0.7;
+ a.reference = sub::TOP_OF_SCREEN;
+ b.proportional = 0.3;
+ b.reference = sub::CENTRE_OF_SCREEN;
+ BOOST_CHECK (a < b);
+
+ a.proportional = 0.9;
+ a.reference = sub::BOTTOM_OF_SCREEN;
+ b.proportional = 0.1;
+ b.reference = sub::TOP_OF_SCREEN;
+ BOOST_CHECK (b < a);
+
+ /* Different line counts with lines */
+
+ a.proportional = optional<float> ();
+ b.proportional = optional<float> ();
+
+ a.line = 12;
+ a.lines = 99;
+ a.reference = sub::TOP_OF_SCREEN;
+ b.line = 12;
+ b.lines = 25;
+ b.reference = sub::TOP_OF_SCREEN;
+ BOOST_CHECK (a < b);
+}