test/utils/math: test the math helper functions

1 files changed, 157 insertions, 0 deletions

diff --git a/test/utils/math.cpp b/test/utils/math.cpp
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+++ b/test/utils/math.cpp
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+/*
+ * UltraStar Deluxe - Karaoke Game
+ *
+ * UltraStar Deluxe is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ */
+
+#include "math.hpp"
+
+#include <exception>
+#include <cppunit/extensions/HelperMacros.h>
+#include <log4cpp/Category.hh>
+
+namespace usdx
+{
+	class MathTest : public CppUnit::TestFixture {
+		CPPUNIT_TEST_SUITE(MathTest);
+		CPPUNIT_TEST(testMinFirst);
+		CPPUNIT_TEST(testMinSecond);
+		CPPUNIT_TEST(testMinFloat);
+		CPPUNIT_TEST(testMaxFirst);
+		CPPUNIT_TEST(testMaxSecond);
+		CPPUNIT_TEST(testMaxFloat);
+		CPPUNIT_TEST(testAbsPositive);
+		CPPUNIT_TEST(testAbsNegative);
+		CPPUNIT_TEST(testAbsFloat);
+ 		CPPUNIT_TEST_SUITE_END();
+	private:
+		static log4cpp::Category&  log;
+	public:
+		void setUp()
+		{
+		}
+
+		void tearDown()
+		{
+		}
+
+		void testMinFirst()
+		{
+			int a = 10;
+			int b = 20;
+			int c = Math::min(a, b);
+
+			CPPUNIT_ASSERT_EQUAL(10, a);
+			CPPUNIT_ASSERT_EQUAL(20, b);
+			CPPUNIT_ASSERT_EQUAL(10, c);
+		}
+
+		void testMinSecond()
+		{
+			int a = 20;
+			int b = 10;
+			int c = Math::min(a, b);
+
+			CPPUNIT_ASSERT_EQUAL(20, a);
+			CPPUNIT_ASSERT_EQUAL(10, b);
+			CPPUNIT_ASSERT_EQUAL(10, c);
+		}
+
+		void testMinFloat()
+		{
+			float a = 3.15f;
+			float b = 3.14f;
+			float c = Math::min(a, b);
+
+			CPPUNIT_ASSERT_EQUAL(3.15f, a);
+			CPPUNIT_ASSERT_EQUAL(3.14f, b);
+			CPPUNIT_ASSERT_EQUAL(3.14f, c);
+		}
+
+		void testMaxFirst()
+		{
+			int a = 10;
+			int b = 20;
+			int c = Math::max(a, b);
+
+			CPPUNIT_ASSERT_EQUAL(10, a);
+			CPPUNIT_ASSERT_EQUAL(20, b);
+			CPPUNIT_ASSERT_EQUAL(20, c);
+		}
+
+		void testMaxSecond()
+		{
+			int a = 20;
+			int b = 10;
+			int c = Math::max(a, b);
+
+			CPPUNIT_ASSERT_EQUAL(20, a);
+			CPPUNIT_ASSERT_EQUAL(10, b);
+			CPPUNIT_ASSERT_EQUAL(20, c);
+		}
+
+		void testMaxFloat()
+		{
+			float a = 3.15f;
+			float b = 3.14f;
+			float c = Math::max(a, b);
+
+			CPPUNIT_ASSERT_EQUAL(3.15f, a);
+			CPPUNIT_ASSERT_EQUAL(3.14f, b);
+			CPPUNIT_ASSERT_EQUAL(3.15f, c);
+		}
+
+		void testAbsPositive()
+		{
+			int a = 10;
+			int b = Math::abs(a);
+
+			CPPUNIT_ASSERT_EQUAL(10, a);
+			CPPUNIT_ASSERT_EQUAL(10, b);
+		}
+
+		void testAbsNegative()
+		{
+			int a = -10;
+			int b = Math::abs(a);
+
+			CPPUNIT_ASSERT_EQUAL(-10, a);
+			CPPUNIT_ASSERT_EQUAL(10, b);
+		}
+
+		void testAbsFloat()
+		{
+			float a = -3.15f;
+			float b = Math::abs(a);
+
+			CPPUNIT_ASSERT_EQUAL(-3.15f, a);
+			CPPUNIT_ASSERT_EQUAL(3.15f, b);
+		}
+
+	};
+
+	log4cpp::Category&  MathTest::log =
+		log4cpp::Category::getInstance("test.usdx.utils.math");
+
+	CPPUNIT_TEST_SUITE_REGISTRATION(MathTest);
+};