testWeightedSampler.cpp
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1 /* ----------------------------------------------------------------------------
2 
3  * GTSAM Copyright 2010, Georgia Tech Research Corporation,
4  * Atlanta, Georgia 30332-0415
5  * All Rights Reserved
6  * Authors: Frank Dellaert, et al. (see THANKS for the full author list)
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8  * See LICENSE for the license information
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10  * -------------------------------------------------------------------------- */
11 
20 
22 
23 #include <random>
24 
25 using namespace std;
26 using namespace gtsam;
27 
28 TEST(WeightedSampler, sampleWithoutReplacement) {
29  vector<double> weights{1, 2, 3, 4, 3, 2, 1};
30  std::mt19937 rng(42);
31  WeightedSampler<std::mt19937> sampler(&rng);
32  auto samples = sampler.sampleWithoutReplacement(5, weights);
33  EXPECT_LONGS_EQUAL(5, samples.size());
34 }
35 
36 //******************************************************************************
37 int main() {
38  TestResult tr;
39  return TestRegistry::runAllTests(tr);
40 }
static int runAllTests(TestResult &result)
static std::mt19937 rng
Fast sampling without replacement.
Definition: BFloat16.h:88
TEST(WeightedSampler, sampleWithoutReplacement)
traits
Definition: chartTesting.h:28
#define EXPECT_LONGS_EQUAL(expected, actual)
Definition: Test.h:154
std::vector< size_t > sampleWithoutReplacement(size_t numSamples, const std::vector< double > &weights)
int main()
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