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Diffstat (limited to 'tools/test/tests.cxx')
| -rw-r--r-- | tools/test/tests.cxx | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/tools/test/tests.cxx b/tools/test/tests.cxx new file mode 100644 index 000000000000..5e848c492cca --- /dev/null +++ b/tools/test/tests.cxx @@ -0,0 +1,111 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <sal/types.h> +#include <cppunit/TestFixture.h> +#include <cppunit/extensions/HelperMacros.h> +#include <cppunit/plugin/TestPlugIn.h> + +#include <rtl/math.hxx> +#include <tools/fract.hxx> + +namespace tools +{ + +class FractionTest : public CppUnit::TestFixture +{ +public: + void setUp() + { + } + + void tearDown() + { + } + + void testFraction() + { + const Fraction aFract(1082130431,1073741824); + CPPUNIT_ASSERT_MESSAGE( "Fraction #1 not approximately equal to 1.007812499068677", + rtl::math::approxEqual((double)aFract,1.007812499068677) ); + + Fraction aFract2( aFract ); + aFract2.ReduceInaccurate(8); + CPPUNIT_ASSERT_MESSAGE( "Fraction #2 not 1", + aFract2.GetNumerator() == 1 && + aFract2.GetDenominator() == 1 ); + + Fraction aFract3( 0x7AAAAAAA, 0x35555555 ); + CPPUNIT_ASSERT_MESSAGE( "Fraction #3 cancellation wrong", + aFract3.GetNumerator() == 0x7AAAAAAA && + aFract3.GetDenominator() == 0x35555555 ); + aFract3.ReduceInaccurate(30); + CPPUNIT_ASSERT_MESSAGE( "Fraction #3 ReduceInaccurate errorneously cut precision", + aFract3.GetNumerator() == 0x7AAAAAAA && + aFract3.GetDenominator() == 0x35555555 ); + + aFract3.ReduceInaccurate(29); + CPPUNIT_ASSERT_MESSAGE( "Fraction #3 reduce to 29 bits failed", + aFract3.GetNumerator() == 0x3D555555 && + aFract3.GetDenominator() == 0x1AAAAAAA ); + + aFract3.ReduceInaccurate(9); + CPPUNIT_ASSERT_MESSAGE( "Fraction #3 reduce to 9 bits failed", + aFract3.GetNumerator() == 0x0147 && + aFract3.GetDenominator() == 0x008E ); + + aFract3.ReduceInaccurate(1); + CPPUNIT_ASSERT_MESSAGE( "Fraction #3 reduce to 1 bit failed", + aFract3.GetNumerator() == 2 && + aFract3.GetDenominator() == 1 ); + + aFract3.ReduceInaccurate(0); + CPPUNIT_ASSERT_MESSAGE( "Fraction #3 reduce to 0 bits failed", + aFract3.GetNumerator() == 2 && + aFract3.GetDenominator() == 1 ); + +#if SAL_TYPES_SIZEOFLONG == 8 + Fraction aFract4(0x7AAAAAAAAAAAAAAA, 0x3555555555555555); + CPPUNIT_ASSERT_MESSAGE( "Fraction #4 cancellation wrong", + aFract4.GetNumerator() == 0x7AAAAAAAAAAAAAAA && + aFract4.GetDenominator() == 0x3555555555555555 ); + aFract4.ReduceInaccurate(62); + CPPUNIT_ASSERT_MESSAGE( "Fraction #4 ReduceInaccurate errorneously cut precision", + aFract4.GetNumerator() == 0x7AAAAAAAAAAAAAAA && + aFract4.GetDenominator() == 0x3555555555555555 ); + + aFract4.ReduceInaccurate(61); + CPPUNIT_ASSERT_MESSAGE( "Fraction #4 ReduceInaccurate reduce to 61 bit failed", + aFract4.GetNumerator() == 0x3D55555555555555 && + aFract4.GetDenominator() == 0x1AAAAAAAAAAAAAAA ); +#endif + } + + CPPUNIT_TEST_SUITE(FractionTest); + CPPUNIT_TEST(testFraction); + CPPUNIT_TEST_SUITE_END(); +}; + + +CPPUNIT_TEST_SUITE_REGISTRATION(FractionTest); +} // namespace tools + +CPPUNIT_PLUGIN_IMPLEMENT(); + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |