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https://github.com/VCMP-SqMod/SqMod.git
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4a6bfc086c
Switched to POCO library for unified platform/library interface. Deprecated the external module API. It was creating more problems than solving. Removed most built-in libraries in favor of system libraries for easier maintenance. Cleaned and secured code with help from static analyzers.
76 lines
1.2 KiB
C++
76 lines
1.2 KiB
C++
//
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// RandomStreamTest.cpp
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#include "RandomStreamTest.h"
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#include "CppUnit/TestCaller.h"
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#include "CppUnit/TestSuite.h"
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#include "Poco/RandomStream.h"
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#include <vector>
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#include <cmath>
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using Poco::RandomInputStream;
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RandomStreamTest::RandomStreamTest(const std::string& name): CppUnit::TestCase(name)
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{
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}
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RandomStreamTest::~RandomStreamTest()
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{
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}
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void RandomStreamTest::testStream()
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{
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RandomInputStream rnd;
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const int n = 16;
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std::vector<int> d(n, 0);
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for (int i = 0; i < 1000; ++i)
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{
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unsigned char c;
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rnd >> c;
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d[c & 0x0F]++;
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d[(c >> 4) & 0x0F]++;
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}
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int sum = 0;
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for (int k = 0; k < n; ++k) sum += d[k];
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int avg = sum/n;
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int var = 0;
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for (int k = 0; k < n; ++k) var += (d[k] - avg)*(d[k] - avg);
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var /= n;
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int sd = int(std::sqrt((double) var));
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assertTrue (110 < avg && avg < 140);
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assertTrue (sd < 20);
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}
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void RandomStreamTest::setUp()
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{
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}
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void RandomStreamTest::tearDown()
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{
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}
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CppUnit::Test* RandomStreamTest::suite()
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{
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CppUnit::TestSuite* pSuite = new CppUnit::TestSuite("RandomStreamTest");
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CppUnit_addTest(pSuite, RandomStreamTest, testStream);
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return pSuite;
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}
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