Add basic unit tests for min() and max()

.gitignore

@@ -5,3 +5,4 @@ cscope.*
 \#*\#
 doc/
 build/
+tests/*_test

tests/MinMax_test.cpp

@@ -0,0 +1,68 @@
+/*
+ *Copyright © 2013 Alexandre Raymond.
+
+ *This file is part of the C++ Fixed-Point Library (LibFi).
+
+ *LibFi 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 3 of the License, or
+ *(at your option) any later version.
+
+ *LibFi 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 LibFi.  If not, see <http://www.gnu.org/licenses/>.
+
+ */
+
+#include "fi/Fixed.hpp"
+
+#define BOOST_TEST_DYN_LINK true
+#define BOOST_TEST_MODULE overflow_detector
+#include <boost/test/unit_test.hpp>
+
+#define CHECK_EQ(A, E) BOOST_CHECK_EQUAL((A).toString(), E)
+
+BOOST_AUTO_TEST_SUITE( min_max )
+
+BOOST_AUTO_TEST_CASE( signed_unsigned )
+{
+
+	typedef Fi::Fixed<8, 4, Fi::UNSIGNED> fiu;
+	typedef Fi::Fixed<8, 4, Fi::SIGNED> fis;
+
+	CHECK_EQ( Fi::max(fiu(1.25), fiu(2.0)), "2.0" );
+	CHECK_EQ( Fi::min(fiu(1.25), fiu(2.0)), "1.25" );
+
+	CHECK_EQ( Fi::max(fis(1.25), fis(2.0)), "2.0" );
+	CHECK_EQ( Fi::min(fis(-1.25), fis(2.0)), "-1.25" );
+
+	CHECK_EQ( Fi::max(fis(1.25), fis(-2.0)), "1.25" );
+	CHECK_EQ( Fi::min(fis(-1.25), fis(-2.0)), "-2.0" );
+
+}
+
+BOOST_AUTO_TEST_CASE( fraction_size )
+{
+
+	typedef Fi::Fixed<8, 1, Fi::UNSIGNED> fiu1;
+
+	CHECK_EQ( Fi::max(fiu1(1.5), fiu1(2.0)), "2.0" );
+	CHECK_EQ( Fi::min(fiu1(1.5), fiu1(2.0)), "1.5" );
+
+}
+
+BOOST_AUTO_TEST_CASE( total_size )
+{
+
+	typedef Fi::Fixed<18, 1, Fi::UNSIGNED> fiu1;
+
+	CHECK_EQ( Fi::max(fiu1(11.5), fiu1(12.0)), "12.0" );
+	CHECK_EQ( Fi::min(fiu1(11.5), fiu1(12.0)), "11.5" );
+
+}
+
+BOOST_AUTO_TEST_SUITE_END()