362 lines
11 KiB
C++
362 lines
11 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 <memory>
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#include <algorithm>
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#include <sal/types.h>
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#include <cppunit/TestAssert.h>
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#include <cppunit/TestFixture.h>
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#include <cppunit/extensions/HelperMacros.h>
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#include <rtl/random.h>
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#include <string.h>
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namespace rtl_random
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{
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class createPool : public CppUnit::TestFixture
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{
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public:
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// insert your test code here.
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// this is only demonstration code
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void createPool_001()
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{
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// this is demonstration code
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rtlRandomPool aPool = rtl_random_createPool();
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// LLA: seems to be that another test is not possible for createPool()
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CPPUNIT_ASSERT_MESSAGE("create failed", aPool != nullptr);
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rtl_random_destroyPool(aPool);
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}
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// Change the following lines only, if you add, remove or rename
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// member functions of the current class,
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// because these macros are need by auto register mechanism.
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CPPUNIT_TEST_SUITE(createPool);
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CPPUNIT_TEST(createPool_001);
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CPPUNIT_TEST_SUITE_END();
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}; // class createPool
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class destroyPool : public CppUnit::TestFixture
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{
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public:
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// insert your test code here.
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void destroyPool_000()
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{
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// GPF, if failed
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rtl_random_destroyPool(nullptr);
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}
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void destroyPool_001()
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{
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rtlRandomPool aPool = rtl_random_createPool();
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// LLA: seems to be that another test is not possible for createPool()
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CPPUNIT_ASSERT_MESSAGE("create failed", aPool != nullptr);
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rtl_random_destroyPool(aPool);
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}
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// Change the following lines only, if you add, remove or rename
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// member functions of the current class,
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// because these macros are need by auto register mechanism.
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CPPUNIT_TEST_SUITE(destroyPool);
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CPPUNIT_TEST(destroyPool_000);
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CPPUNIT_TEST(destroyPool_001);
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CPPUNIT_TEST_SUITE_END();
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}; // class destroyPool
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class addBytes : public CppUnit::TestFixture
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{
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public:
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// insert your test code here.
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// this is only demonstration code
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void addBytes_000()
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{
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rtlRandomPool aPool = rtl_random_createPool();
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sal_uInt32 nBufLen = 4;
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std::unique_ptr<sal_uInt8[]> pBuffer( new sal_uInt8[ nBufLen ] );
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memset(pBuffer.get(), 0, nBufLen);
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rtlRandomError aError = rtl_random_addBytes(nullptr, nullptr, 0);
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CPPUNIT_ASSERT_EQUAL_MESSAGE("wrong parameter", rtl_Random_E_Argument, aError);
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/* rtlRandomError */ aError = rtl_random_addBytes(aPool, nullptr, 0);
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CPPUNIT_ASSERT_EQUAL_MESSAGE("wrong parameter", rtl_Random_E_Argument, aError);
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/* rtlRandomError */ aError = rtl_random_addBytes(aPool, pBuffer.get(), nBufLen);
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CPPUNIT_ASSERT_EQUAL_MESSAGE("wrong parameter", rtl_Random_E_None, aError);
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rtl_random_destroyPool(aPool);
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}
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void addBytes_001()
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{
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rtlRandomPool aPool = rtl_random_createPool();
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sal_uInt32 nBufLen = 4;
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std::unique_ptr<sal_uInt8[]> pBuffer( new sal_uInt8[ nBufLen ] );
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memset(pBuffer.get(), 0, nBufLen);
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rtl_random_addBytes(aPool, pBuffer.get(), nBufLen);
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printf("%2x %2x %2x %2x\n", pBuffer[0], pBuffer[1], pBuffer[2], pBuffer[3]);
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rtl_random_destroyPool(aPool);
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}
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// Change the following lines only, if you add, remove or rename
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// member functions of the current class,
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// because these macros are need by auto register mechanism.
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CPPUNIT_TEST_SUITE(addBytes);
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CPPUNIT_TEST(addBytes_000);
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CPPUNIT_TEST(addBytes_001);
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CPPUNIT_TEST_SUITE_END();
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}; // class addBytes
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namespace {
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class Statistics
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{
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int m_nDispensation[256];
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int m_nMin;
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int m_nMax;
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int m_nAverage;
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int m_nMinDeviation;
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int m_nMaxDeviation;
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public:
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void clearDispensation()
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{
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for (int i = 0;i < 256;++i) // clear array
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{
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m_nDispensation[i] = 0;
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}
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}
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Statistics()
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: m_nMin(0)
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, m_nMax(0)
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, m_nAverage(0)
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, m_nMinDeviation(0)
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, m_nMaxDeviation(0)
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{
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clearDispensation();
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}
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void addValue(sal_uInt8 _nIndex, sal_Int32 _nValue)
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{
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m_nDispensation[_nIndex] += _nValue;
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}
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void build(sal_Int32 _nCountMax)
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{
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m_nMin = _nCountMax;
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m_nMax = 0;
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m_nAverage = _nCountMax / 256;
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m_nMinDeviation = _nCountMax;
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m_nMaxDeviation = 0;
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for (int i = 0;i < 256;++i) // show dispensation
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{
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m_nMin = std::min(m_nMin, m_nDispensation[i]);
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m_nMax = std::max(m_nMax, m_nDispensation[i]);
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m_nMinDeviation = std::min(m_nMinDeviation, abs(m_nAverage - m_nDispensation[i]));
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m_nMaxDeviation = std::max(m_nMaxDeviation, abs(m_nAverage - m_nDispensation[i]));
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}
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}
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void print()
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{
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// LLA: these are only info values
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printf("\nSome statistics\n");
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printf("Min: %d\n", m_nMin);
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printf("Max: %d\n", m_nMax);
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printf("Average: %d\n", m_nAverage);
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printf("Min abs deviation: %d\n", m_nMinDeviation);
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printf("Max abs deviation: %d\n", m_nMaxDeviation);
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}
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sal_Int32 getAverage() const {return m_nAverage;}
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sal_Int32 getMaxDeviation() const {return m_nMaxDeviation;}
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};
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}
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class getBytes : public CppUnit::TestFixture
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{
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public:
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// insert your test code here.
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void getBytes_000()
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{
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rtlRandomPool aPool = rtl_random_createPool();
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sal_uInt32 nBufLen = 4;
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std::unique_ptr<sal_uInt8[]> pBuffer( new sal_uInt8[ nBufLen ] );
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memset(pBuffer.get(), 0, nBufLen);
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rtlRandomError aError = rtl_random_getBytes(nullptr, nullptr, 0);
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CPPUNIT_ASSERT_EQUAL_MESSAGE("wrong parameter", rtl_Random_E_Argument, aError);
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/* rtlRandomError */ aError = rtl_random_getBytes(aPool, nullptr, 0);
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CPPUNIT_ASSERT_EQUAL_MESSAGE("wrong parameter", rtl_Random_E_Argument, aError);
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/* rtlRandomError */ aError = rtl_random_getBytes(aPool, pBuffer.get(), nBufLen);
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CPPUNIT_ASSERT_EQUAL_MESSAGE("wrong parameter", rtl_Random_E_None, aError);
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rtl_random_destroyPool(aPool);
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}
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void getBytes_001()
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{
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rtlRandomPool aPool = rtl_random_createPool();
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sal_uInt32 nBufLen = 4;
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std::unique_ptr<sal_uInt8[]> pBuffer( new sal_uInt8[ nBufLen ] );
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memset(pBuffer.get(), 0, nBufLen);
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rtlRandomError aError = rtl_random_getBytes(aPool, pBuffer.get(), nBufLen);
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CPPUNIT_ASSERT_EQUAL_MESSAGE("wrong parameter", rtl_Random_E_None, aError);
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printf("%2x %2x %2x %2x\n", pBuffer[0], pBuffer[1], pBuffer[2], pBuffer[3]);
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rtl_random_destroyPool(aPool);
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}
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void getBytes_002()
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{
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rtlRandomPool aPool = rtl_random_createPool();
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sal_uInt32 nBufLen = 4;
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std::unique_ptr<sal_uInt8[]> pBuffer( new sal_uInt8[ nBufLen << 1 ] );
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memset(pBuffer.get(), 0, nBufLen << 1);
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CPPUNIT_ASSERT_EQUAL_MESSAGE("memset failed", sal_uInt8(0), pBuffer[4]);
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CPPUNIT_ASSERT_EQUAL_MESSAGE("memset failed", sal_uInt8(0), pBuffer[5]);
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CPPUNIT_ASSERT_EQUAL_MESSAGE("memset failed", sal_uInt8(0), pBuffer[6]);
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CPPUNIT_ASSERT_EQUAL_MESSAGE("memset failed", sal_uInt8(0), pBuffer[7]);
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rtlRandomError aError = rtl_random_getBytes(aPool, pBuffer.get(), nBufLen);
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CPPUNIT_ASSERT_EQUAL_MESSAGE("wrong parameter", rtl_Random_E_None, aError);
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printf("%2x %2x %2x %2x %2x %2x %2x %2x\n", pBuffer[0], pBuffer[1], pBuffer[2], pBuffer[3], pBuffer[4], pBuffer[5], pBuffer[6], pBuffer[7]);
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CPPUNIT_ASSERT_EQUAL_MESSAGE("internal memory overwrite", sal_uInt8(0), pBuffer[4]);
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CPPUNIT_ASSERT_EQUAL_MESSAGE("internal memory overwrite", sal_uInt8(0), pBuffer[5]);
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CPPUNIT_ASSERT_EQUAL_MESSAGE("internal memory overwrite", sal_uInt8(0), pBuffer[6]);
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CPPUNIT_ASSERT_EQUAL_MESSAGE("internal memory overwrite", sal_uInt8(0), pBuffer[7]);
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rtl_random_destroyPool(aPool);
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}
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void getBytes_003()
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{
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rtlRandomPool aPool = rtl_random_createPool();
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sal_uInt32 nBufLen = 1;
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std::unique_ptr<sal_uInt8[]> pBuffer( new sal_uInt8[ nBufLen ] );
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memset(pBuffer.get(), 0, nBufLen);
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Statistics aStat;
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CPPUNIT_ASSERT_EQUAL_MESSAGE("memset failed", static_cast<sal_uInt8>(0), pBuffer[0]);
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int nCount = 0;
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int nCountMax = 1000000;
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for(nCount = 0;nCount < nCountMax; ++nCount) // run 100000000 through getBytes(...)
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{
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/* rtlRandomError aError = */ rtl_random_getBytes(aPool, pBuffer.get(), nBufLen);
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/* CPPUNIT_ASSERT_MESSAGE("wrong parameter", aError == rtl_Random_E_None); */
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aStat.addValue(pBuffer[0], 1);
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}
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aStat.build(nCountMax);
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aStat.print();
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CPPUNIT_ASSERT_MESSAGE("deviation should be less average", aStat.getMaxDeviation() < aStat.getAverage());
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rtl_random_destroyPool(aPool);
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}
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void getBytes_003_1()
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{
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rtlRandomPool aPool = rtl_random_createPool();
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sal_uInt32 nBufLen = 256;
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std::unique_ptr<sal_uInt8[]> pBuffer( new sal_uInt8[ nBufLen ] );
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memset(pBuffer.get(), 0, nBufLen);
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Statistics aStat;
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CPPUNIT_ASSERT_EQUAL_MESSAGE("memset failed", static_cast<sal_uInt8>(0), pBuffer[0]);
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int nCount = 0;
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int nCountMax = 10000;
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for(nCount = 0;nCount < nCountMax; ++nCount) // run 100000000 through getBytes(...)
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{
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/* rtlRandomError aError = */ rtl_random_getBytes(aPool, pBuffer.get(), nBufLen);
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// CPPUNIT_ASSERT_MESSAGE("wrong parameter", aError == rtl_Random_E_None);
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for (sal_uInt32 i=0;i<nBufLen;++i)
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aStat.addValue(pBuffer[i], 1);
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}
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aStat.build(nCountMax * nBufLen);
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aStat.print();
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CPPUNIT_ASSERT_MESSAGE("deviation should be less average", aStat.getMaxDeviation() < aStat.getAverage());
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rtl_random_destroyPool(aPool);
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}
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// Change the following lines only, if you add, remove or rename
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// member functions of the current class,
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// because these macros are need by auto register mechanism.
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CPPUNIT_TEST_SUITE(getBytes);
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CPPUNIT_TEST(getBytes_000);
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CPPUNIT_TEST(getBytes_001);
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CPPUNIT_TEST(getBytes_002);
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CPPUNIT_TEST(getBytes_003);
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CPPUNIT_TEST(getBytes_003_1);
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CPPUNIT_TEST_SUITE_END();
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}; // class getBytes
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CPPUNIT_TEST_SUITE_REGISTRATION(rtl_random::createPool);
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CPPUNIT_TEST_SUITE_REGISTRATION(rtl_random::destroyPool);
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CPPUNIT_TEST_SUITE_REGISTRATION(rtl_random::addBytes);
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CPPUNIT_TEST_SUITE_REGISTRATION(rtl_random::getBytes);
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} // namespace rtl_random
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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