d085da3b89
git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@725 fdac6126-5c0c-442c-9429-916003d36597
96 lines
2.2 KiB
C++
96 lines
2.2 KiB
C++
#ifndef INCLUDE_UNITTESTS_RANDOMNUMBER_HH
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#define INCLUDE_UNITTESTS_RANDOMNUMBER_HH
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#include <gtest/gtest.h>
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#include <OpenMesh/Core/Utils/RandomNumberGenerator.hh>
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class RandomNumberGenerator : public testing::Test {
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protected:
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// This function is called before each test is run
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virtual void SetUp() {
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// Do some initial stuff with the member data here...
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}
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// This function is called after all tests are through
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virtual void TearDown() {
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// Do some final stuff with the member data here...
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}
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// Member already defined in OpenMeshBase
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//Mesh mesh_;
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};
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/*
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* ====================================================================
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* Define tests below
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* ====================================================================
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*/
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TEST_F(RandomNumberGenerator, RandomNumberGeneratorMaxTestHighres) {
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OpenMesh::RandomNumberGenerator rng(100000000);
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unsigned int lowerZero = 0;
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unsigned int above1 = 0;
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double average = 0.0;
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for ( unsigned int i = 0 ; i < 100000000 ; ++i) {
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double randomNumber = rng.getRand();
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if ( randomNumber < 0.0 )
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lowerZero++;
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if ( randomNumber > 1.0 )
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above1++;
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average += randomNumber;
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}
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average /= 100000000.0;
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// EXPECT_EQ(0u, lowerZero ) << "Below zero!";
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// EXPECT_EQ(0u, above1 ) << "Above zero!";
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EXPECT_TRUE( (average - 0.5) < 0.01 ) << "Expected value not 0.5";
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}
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TEST_F(RandomNumberGenerator, RandomNumberGeneratorMaxTestLowres) {
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OpenMesh::RandomNumberGenerator rng(1000);
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unsigned int lowerZero = 0;
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unsigned int above1 = 0;
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double average = 0.0;
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for ( unsigned int i = 0 ; i < 10000000 ; ++i) {
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double randomNumber = rng.getRand();
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if ( randomNumber < 0.0 )
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lowerZero++;
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if ( randomNumber > 1.0 ) {
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above1++;
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std::cerr << "randomNumber " << randomNumber << std::endl;
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std::cerr << "resolution " << rng.resolution() << std::endl;
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}
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average += randomNumber;
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}
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average /= 10000000.0;
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// EXPECT_EQ(0u, lowerZero ) << "Below zero!";
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// EXPECT_EQ(0u, above1 ) << "Above zero!";
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EXPECT_TRUE( (average - 0.5) < 0.01 ) << "Expected value not 0.5";
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}
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#endif // INCLUDE GUARD
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