root/library/tests/square_mat_stress.cpp @ 456

#include "../bdm/math/square_mat.h"
#include "../bdm/math/chmat.h"
#include "UnitTest++.h"
#include "TestReporterStdout.h"
#include <iostream>
#include <iomanip>
#include <stdlib.h>
#include <string.h>

using std::cout;
using std::cerr;
using std::endl;

double epsilon = 0.00001;

bool fast = false;

namespace UnitTest
{

// can't include mat_checks.h because CheckClose is different in this file
extern bool AreClose(const itpp::vec &expected, const itpp::vec &actual,
                     double tolerance);

extern bool AreClose(const itpp::mat &expected, const itpp::mat &actual,
                     double tolerance);

void CheckClose(TestResults &results, const itpp::mat &expected,
                const itpp::mat &actual, double tolerance,
                TestDetails const& details) {
    if (!AreClose(expected, actual, tolerance)) { 
        MemoryOutStream stream;
        stream << "failed at " << expected.rows()
               << " x " << expected.cols();

        results.OnTestFailure(details, stream.GetText());
    }
}

}

template<typename TMatrix>
void test_until_overflow() {
    Real_Timer tt;
    int sz = 7;
    while (true) {
        mat A0 = randu(sz, sz);
        mat A = A0 * A0.T();
        
        tt.tic();
        TMatrix sqmat(A);
        double elapsed = tt.toc();
        cout << "ctor(" << sz << " x " << sz << "): " << elapsed << " s" << endl;

        tt.tic();
        mat res = sqmat.to_mat();
        elapsed = tt.toc();

        if (!fast) {
            CHECK_CLOSE(A, res, epsilon);
        }

        cout << "to_mat: " << elapsed << " s" << endl;

        vec v = randu(sz);
        double w = randu();
        TMatrix sqmat2 = sqmat;
        
        tt.tic();
        sqmat2.opupdt(v, w);
        elapsed = tt.toc();

        if (!fast) {
            mat expA = A + w * outer_product(v, v);
            CHECK_CLOSE(expA, sqmat2.to_mat(), epsilon);
        }

        cout << "opupdt: " << elapsed << " s" << endl;

        TMatrix invmat(sz);

        tt.tic();
        sqmat.inv(invmat);
        elapsed = tt.toc();

        if (!fast) {
            mat invA = inv(A);
            CHECK_CLOSE(invA, invmat.to_mat(), epsilon);
        }

        cout << "inv: " << elapsed << " s" << endl;

        sz *= 7;
    }
}

SUITE(ldmat) {
    TEST(cycle) {
        test_until_overflow<ldmat>();
    }
}

SUITE(fsqmat) {
    TEST(cycle) {
        test_until_overflow<fsqmat>();
    }
}

SUITE(chmat) {
    TEST(cycle) {
        test_until_overflow<chmat>();
    }
}

int main(int argc, char const *argv[]) {
    bool unknown = false;
    int update_next = 0; // 1 suite, 2 epsilon
    const char *suite = "ldmat";
    const char **param = argv + 1;
    while (*param && !unknown) {
        if (update_next) {
            if (update_next == 1) {
                suite = *param;
            } else {
                double eps = atof(*param);
                if (eps > 0) {
                    epsilon = eps;
                } else {
                    cerr << "invalid epsilon value ignored" << endl;
                }
            }

            update_next = 0;
        } else {
            if (!strcmp(*param, "-c")) {
                update_next = 1;
            } else if (!strcmp(*param, "-e")) {
                update_next = 2;
            } else if (!strcmp(*param, "-f")) {
                fast = true;
            } else {
                unknown = true;
            }
        }

        ++param;
    }

    if (unknown || update_next) {
        cerr << "usage: " << argv[0] << " [ -f ] [ -e epsilon ] [ -c class ]" << endl;
    } else {
        UnitTest::TestReporterStdout reporter;
        UnitTest::TestRunner runner(reporter);
        return runner.RunTestsIf(UnitTest::Test::GetTestList(),
            suite,
            UnitTest::True(),
            0);
    }
}