Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #include <limits>
      21             : #include <cppunit/TestFixture.h>
      22             : #include <cppunit/extensions/HelperMacros.h>
      23             : 
      24             : #include <rtl/math.hxx>
      25             : 
      26             : #include <tools/bigint.hxx>
      27             : 
      28             : namespace tools
      29             : {
      30             : 
      31           0 : class BigIntTest : public CppUnit::TestFixture
      32             : {
      33             : public:
      34             : #if SAL_TYPES_SIZEOFLONG < SAL_TYPES_SIZEOFLONGLONG
      35             :     void testConstructionFromLongLong();
      36             : #endif
      37             : 
      38           4 :     CPPUNIT_TEST_SUITE(BigIntTest);
      39             : #if SAL_TYPES_SIZEOFLONG < SAL_TYPES_SIZEOFLONGLONG
      40             :     CPPUNIT_TEST(testConstructionFromLongLong);
      41             : #endif
      42           4 :     CPPUNIT_TEST_SUITE_END();
      43             : };
      44             : 
      45             : #if SAL_TYPES_SIZEOFLONG < SAL_TYPES_SIZEOFLONGLONG
      46             : void BigIntTest::testConstructionFromLongLong()
      47             : {
      48             :     // small positive number
      49             :     {
      50             :         BigInt bi(static_cast<sal_Int64>(42));
      51             :         CPPUNIT_ASSERT(bi.IsSet());
      52             :         CPPUNIT_ASSERT(!bi.IsZero());
      53             :         CPPUNIT_ASSERT(!bi.IsNeg());
      54             :         CPPUNIT_ASSERT(bi.IsLong());
      55             :         CPPUNIT_ASSERT_EQUAL(42L, static_cast<long>(bi));
      56             :     }
      57             : 
      58             :     // small negative number
      59             :     {
      60             :         BigInt bi(static_cast<sal_Int64>(-42));
      61             :         CPPUNIT_ASSERT(bi.IsSet());
      62             :         CPPUNIT_ASSERT(!bi.IsZero());
      63             :         CPPUNIT_ASSERT(bi.IsNeg());
      64             :         CPPUNIT_ASSERT(bi.IsLong());
      65             :         CPPUNIT_ASSERT_EQUAL(-42L, static_cast<long>(bi));
      66             :     }
      67             : 
      68             :     // positive number just fitting to long
      69             :     {
      70             :         BigInt bi(static_cast<sal_Int64>(std::numeric_limits<long>::max()));
      71             :         CPPUNIT_ASSERT(bi.IsSet());
      72             :         CPPUNIT_ASSERT(!bi.IsZero());
      73             :         CPPUNIT_ASSERT(!bi.IsNeg());
      74             :         CPPUNIT_ASSERT(bi.IsLong());
      75             :         CPPUNIT_ASSERT_EQUAL(std::numeric_limits<long>::max(), static_cast<long>(bi));
      76             :     }
      77             : 
      78             :     // negative number just fitting to long
      79             :     {
      80             :         BigInt bi(static_cast<sal_Int64>(std::numeric_limits<long>::min()));
      81             :         CPPUNIT_ASSERT(bi.IsSet());
      82             :         CPPUNIT_ASSERT(!bi.IsZero());
      83             :         CPPUNIT_ASSERT(bi.IsNeg());
      84             :         CPPUNIT_ASSERT(bi.IsLong());
      85             :         CPPUNIT_ASSERT_EQUAL(std::numeric_limits<long>::min(), static_cast<long>(bi));
      86             :     }
      87             : 
      88             :     // positive number not fitting to long
      89             :     {
      90             :         BigInt bi(static_cast<sal_Int64>(std::numeric_limits<long>::max()) + static_cast<sal_Int64>(1));
      91             :         CPPUNIT_ASSERT(bi.IsSet());
      92             :         CPPUNIT_ASSERT(!bi.IsZero());
      93             :         CPPUNIT_ASSERT(!bi.IsNeg());
      94             :         CPPUNIT_ASSERT(!bi.IsLong());
      95             :     }
      96             : 
      97             :     // negative number not fitting to long
      98             :     {
      99             :         BigInt bi(static_cast<sal_Int64>(std::numeric_limits<long>::min()) - static_cast<sal_Int64>(1));
     100             :         CPPUNIT_ASSERT(bi.IsSet());
     101             :         CPPUNIT_ASSERT(!bi.IsZero());
     102             :         CPPUNIT_ASSERT(bi.IsNeg());
     103             :         CPPUNIT_ASSERT(!bi.IsLong());
     104             :     }
     105             : }
     106             : #endif
     107             : 
     108           2 : CPPUNIT_TEST_SUITE_REGISTRATION(BigIntTest);
     109             : 
     110           6 : }
     111             : 
     112             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */