cs-lab34/unittest.cpp

#define DOCTEST_CINFIG_NO_MULTITHREADING
#define DOCTEST_CINFIG_IMOLEMENT_WITH_MAIN
#include "doctest.h"
#include "histogram_internal.h"
#include "svg.h"
#include <string>
#include <fstream>

TEST_CASE("distinct positive numbers") {
    double min = 0;
    double max = 0;
    find_minmax({ 1, 2 }, min, max);
    CHECK(min == 1);
    CHECK(max == 2);
}

TEST_CASE("check if vector is only one in length") {
    double min = 3;
    double max = 3;
    find_minmax({ 3 }, min, max);
    CHECK(min == 3);
    CHECK(max == 3);
}
TEST_CASE("all numbers are the same") {
    double min = 1;
    double max = 1;
    find_minmax({ 1, 1, 1, 1, 1, 1, 1, }, min, max);
    CHECK(min == 1);
    CHECK(max == 1);
}
TEST_CASE("all numbers are the same") {
    double min = 0;
    double max = 0;
    CHECK(!find_minmax({}, min, max));
}

TEST_CASE("histogram for 10 variant is correct") {
    std::fstream in, compare;
    std::string line, compline;
    bool flag = 0;
    in.open("result.txt");
    compare.open("compare.txt");
    while (std::getline(in, line) && std::getline(compare, compline) && !flag) {
        if (line != compline) {
            flag = 1;
        }
    }
    CHECK(flag == 0);
}