113 lines
3.5 KiB
C++
113 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <limits>
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#include <cppunit/TestFixture.h>
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#include <cppunit/extensions/HelperMacros.h>
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#include <rtl/math.hxx>
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#include <tools/bigint.hxx>
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namespace tools
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{
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class BigIntTest : public CppUnit::TestFixture
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{
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public:
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#if SAL_TYPES_SIZEOFLONG < SAL_TYPES_SIZEOFLONGLONG
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void testConstructionFromLongLong();
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#endif
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CPPUNIT_TEST_SUITE(BigIntTest);
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#if SAL_TYPES_SIZEOFLONG < SAL_TYPES_SIZEOFLONGLONG
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CPPUNIT_TEST(testConstructionFromLongLong);
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#endif
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CPPUNIT_TEST_SUITE_END();
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};
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#if SAL_TYPES_SIZEOFLONG < SAL_TYPES_SIZEOFLONGLONG
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void BigIntTest::testConstructionFromLongLong()
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{
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// small positive number
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{
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BigInt bi(static_cast<sal_Int64>(42));
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CPPUNIT_ASSERT(bi.IsSet());
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CPPUNIT_ASSERT(!bi.IsZero());
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CPPUNIT_ASSERT(!bi.IsNeg());
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CPPUNIT_ASSERT(bi.IsLong());
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CPPUNIT_ASSERT_EQUAL(42L, static_cast<long>(bi));
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}
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// small negative number
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{
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BigInt bi(static_cast<sal_Int64>(-42));
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CPPUNIT_ASSERT(bi.IsSet());
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CPPUNIT_ASSERT(!bi.IsZero());
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CPPUNIT_ASSERT(bi.IsNeg());
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CPPUNIT_ASSERT(bi.IsLong());
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CPPUNIT_ASSERT_EQUAL(-42L, static_cast<long>(bi));
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}
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// positive number just fitting to long
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{
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BigInt bi(static_cast<sal_Int64>(std::numeric_limits<long>::max()));
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CPPUNIT_ASSERT(bi.IsSet());
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CPPUNIT_ASSERT(!bi.IsZero());
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CPPUNIT_ASSERT(!bi.IsNeg());
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CPPUNIT_ASSERT(bi.IsLong());
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CPPUNIT_ASSERT_EQUAL(std::numeric_limits<long>::max(), static_cast<long>(bi));
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}
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// negative number just fitting to long
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{
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BigInt bi(static_cast<sal_Int64>(std::numeric_limits<long>::min()));
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CPPUNIT_ASSERT(bi.IsSet());
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CPPUNIT_ASSERT(!bi.IsZero());
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CPPUNIT_ASSERT(bi.IsNeg());
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CPPUNIT_ASSERT(bi.IsLong());
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CPPUNIT_ASSERT_EQUAL(std::numeric_limits<long>::min(), static_cast<long>(bi));
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}
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// positive number not fitting to long
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{
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BigInt bi(static_cast<sal_Int64>(std::numeric_limits<long>::max()) + static_cast<sal_Int64>(1));
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CPPUNIT_ASSERT(bi.IsSet());
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CPPUNIT_ASSERT(!bi.IsZero());
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CPPUNIT_ASSERT(!bi.IsNeg());
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CPPUNIT_ASSERT(!bi.IsLong());
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}
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// negative number not fitting to long
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{
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BigInt bi(static_cast<sal_Int64>(std::numeric_limits<long>::min()) - static_cast<sal_Int64>(1));
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CPPUNIT_ASSERT(bi.IsSet());
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CPPUNIT_ASSERT(!bi.IsZero());
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CPPUNIT_ASSERT(bi.IsNeg());
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CPPUNIT_ASSERT(!bi.IsLong());
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}
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}
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#endif
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CPPUNIT_TEST_SUITE_REGISTRATION(BigIntTest);
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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