From 8d11c6c8213f46f0fa19826917c255edd5d43cb1 Mon Sep 17 00:00:00 2001 From: mzuenni Date: Sun, 28 Jul 2024 22:54:40 +0200 Subject: 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 --- test/math/simpson.cpp | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 test/math/simpson.cpp (limited to 'test/math/simpson.cpp') diff --git a/test/math/simpson.cpp b/test/math/simpson.cpp new file mode 100644 index 0000000..d7cdba3 --- /dev/null +++ b/test/math/simpson.cpp @@ -0,0 +1,63 @@ +#include "../util.h" +std::function f; +constexpr double EPS = 1e-9; +#include + +struct RandomPolynom { + vector polynom; + RandomPolynom(int deg) : polynom(deg) { + for (auto& x : polynom) x = Random::real(-100, 100); + } + double operator()(double x) const { + double res = 0; + double xx = 1; + for (double y : polynom ) { + res += xx * y; + xx *= x; + } + return res; + } + double area(double a, double b) const { + double res = 0; + double aa = a; + double bb = b; + ll d = 1; + for (double y : polynom) { + res += bb / d * y; + res -= aa / d * y; + aa *= a; + bb *= b; + d++; + } + return res; + } +}; + +void stress_test() { + timer t; + ll queries = 0; + for (int tries = 0; tries < 1'000; tries++) { + ll n = Random::integer(0, 6); + RandomPolynom poly(n); + f = poly; + for (ll i = 0; i < 200; i++) { + double l = Random::real(-20, 20); + double r = Random::real(-20, 20); + if (l > r) swap(l, r); + + t.start(); + double got = integrate(l, r); + t.stop(); + double expected = poly.area(l, r); + if (float_error(got, expected) > 1e-6) cerr << fixed << setprecision(20) << "got: " << got << ", expected: " << expected << FAIL; + queries++; + } + } + if (t.time > 5000) cerr << "too slow: " << t.time << FAIL; + cerr << "tested random queries: " << queries << " (" << t.time << "ms)" << endl; +} + +int main() { + stress_test(); +} + -- cgit v1.2.3