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| author | mzuenni <mzuenni@users.noreply.github.com> | 2024-07-28 22:54:40 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-07-28 22:54:40 +0200 |
| commit | 8d11c6c8213f46f0fa19826917c255edd5d43cb1 (patch) | |
| tree | 96d75baff33d5a04b5a60f1a41f514a26c716874 /test/math/goldenSectionSearch.cpp | |
| parent | 8c33b4e0d3030cfed17fc64b4fe41133339f6d87 (diff) | |
Test (#4)
* update
* moved content in subdir
* rename file
* add test setup
* add test setup
* add github action
* automaticly test all cpp files
* timeout after 10s
* setulimit and dont zero memory
* test build pdf
* install latexmk
* update
* update
* ngerman
* fonts
* removed old code
* add first test
* added tests
* test in sorted order
* more tests
* simplified test
* more tests
* fix suffix tree
* fixes and improvements
* done ust lst directly
* fix swap
* add links to pdf
* fix constants
* add primorial
* add comment
* various improvements
* more tests
* added missing stuf
* more tests
* fix tests
* more tests
* more tests
* more tests
* fix recursion?
* test trie
* more tests
* only use python temporarily for listings
* only use python temporarily for listings
* more tests
* fix longestCommonSubstring
* more tests
* more tests
* made code more similiar
* fix?
* more tests
* more tests
* more tests
* add ahoCorasick test + limit 4GB stack size
* more tests
* fix test
* add additional test
* more tests
* more tests
* fix?
* better fix
* fix virtual tree
* more tests
* more tests
* recursive closest pair
* more tests
* decrease limit
* new tests
* more tests
* fix name
* more tests
* add test
* new test
* more tests
* more tests
* more tests
* more tests
* new test and content
* new code
* new code
* larger tests
* fix and test
* new test
* new test
* update pdf
* remove comments
* new test
* more tests
* more testcases
* more tests
* increased limit
* more tests
* more tests
* more tests
* new tests
* more tests
* shortened code
* new test
* add basic tests for bigint
* more tests
* removed old files
* new test
* ignore some files
* more auto more ccw
* fix test
* more tests
* fix
* new tests
* more tests
* more tests
* stronger test
* actually verify delaunay...
* more tests
* fix header
* more tests
* run tests parallel?
* test parralel?
* add --missing
* separate workflows
* test
* is the pdf checked?
* separate workflows
* fix workflow
* more workflows
---------
Co-authored-by: Yidi <noob999noob999@gmail.com>
Diffstat (limited to 'test/math/goldenSectionSearch.cpp')
| -rw-r--r-- | test/math/goldenSectionSearch.cpp | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/test/math/goldenSectionSearch.cpp b/test/math/goldenSectionSearch.cpp new file mode 100644 index 0000000..565a21c --- /dev/null +++ b/test/math/goldenSectionSearch.cpp @@ -0,0 +1,74 @@ +#include "../util.h" +#include <math/goldenSectionSearch.cpp> + +struct RandomFunction { + ld min; + vector<pair<ld, int>> polys; + RandomFunction(ld l, ld r) : min(Random::real<ld>(l, r)) { + do { + polys.emplace_back( + Random::real<ld>(0, 1e9), + 2 * Random::integer<int>(1, 5) + ); + } while(false && Random::integer<int>(4) != 0); + } + + ld operator()(ld x){ + ld res = 0; + for (auto [m, p] : polys) { + res += m * pow(x - min, p); + } + return res; + } + + friend ostream& operator<<(ostream& os, const RandomFunction& f) { + string plus = ""; + for (auto [m, p] : f.polys) { + os << setprecision(15) << plus << m << "*(x-" << f.min << ")**" << p; + plus = "+"; + } + return os; + } +}; + +void stress_test() { + int queries = 0; + for (int i = 0; i < 50'000; i++) { + ld l = Random::real<double>(-200, 200); + ld r = Random::real<double>(-200, 200); + if (l > r) swap(l, r); + + RandomFunction f(l, r); + + ld got = gss(l, r, f); + ld expected = f.min; + if (float_error(got, expected) > 1e-6) { + cerr << f << endl; + cerr << "got: " << got << ", expected: " << expected << FAIL; + } + queries++; + } + cerr << "tested random queries: " << queries << endl; +} + +constexpr int N = 10'000; +void performance_test() { + timer t; + RandomFunction f(-200, 200); + f.polys.resize(1); + + hash_t hash = 0; + for (int i = 0; i < N; i++) { + t.start(); + hash += gss(-200, 200, f); + t.stop(); + } + if (t.time > 1000) cerr << "too slow: " << t.time << FAIL; + cerr << "tested performance: " << t.time << "ms (hash: " << hash << ")" << endl; +} + +int main() { + stress_test(); + performance_test(); +} + |