rwppm/tests/test.cpp

#include <iostream>
#include "../src/pnm.cpp"


void make_test_img() {
    try {
        pnm::PPM image;
        
        const uint32_t width = 512;
        const uint32_t height = 512;

        for (uint32_t y = 0; y < height; y++) {
            for (uint32_t x = 0; x < width; x++) {                
                image.put_pixel(x, y, pnm::RGB(x / 2, y / 2, x / 2 + y / 2));
            }
        }

        image.save("test_img512x512.ppm");
    } catch(const std::exception& e) {
        std::string error_message("make_test_img: ", e.what());
        throw std::runtime_error(error_message);
    }
}

void green_rectangle_on_top_of_existing_image() {
    try {
        pnm::PPM image;
        image.read("test_img512x512.ppm");
        // image.read("img.ppm");

        uint32_t rec_width = 100;
        uint32_t rec_height = 100;
        
        for (uint32_t y = 0; y < rec_height; y++) {
            for (uint32_t x = 0; x < rec_width; x++) {
                image.put_pixel(x, y, pnm::RGB(0, 255, 0));
            }
        }

        image.save("result_image.ppm");
    } catch(const std::exception& e) {
        std::string error_message("green_rectangle_on_top_of_existing_image: ", e.what());
        throw std::runtime_error(error_message);
    }
}

void no_pixel_assign() {
    try {
        pnm::PPM image;
        image.save("result_image.ppm");

        std::string error_message("no_pixel_assign: should`ve gotten an error, but there weren`t any thrown");
        throw std::runtime_error(error_message);
    } catch(const std::exception& e) {}
}

int main() {
    try {
        make_test_img();
        green_rectangle_on_top_of_existing_image();
        no_pixel_assign();

    } catch(const std::exception& e) {
        std::cout << "[ERROR] " << e.what() << "\n";
        return 1;
    }

    std::cout << "[ALL TESTS WERE COMPLETED SUCCESSFULLY]\n";

    return 0;
}