PrusaSlicer/tests/fff_print/test_gcodewriter.cpp

#include <catch2/catch_test_macros.hpp>
#include <catch2/matchers/catch_matchers.hpp>
#include <catch2/matchers/catch_matchers_string.hpp>

#include <memory>

#include "libslic3r/GCode/GCodeWriter.hpp"

using namespace Slic3r;

SCENARIO("set_speed emits values with fixed-point output.", "[GCodeWriter]") {

    GIVEN("GCodeWriter instance") {
        GCodeWriter writer;
        WHEN("set_speed is called to set speed to 99999.123") {
            THEN("Output string is G1 F99999.123") {
                REQUIRE_THAT(writer.set_speed(99999.123), Catch::Matchers::Equals("G1 F99999.123\n"));
            }
        }
        WHEN("set_speed is called to set speed to 1") {
            THEN("Output string is G1 F1") {
                REQUIRE_THAT(writer.set_speed(1.0), Catch::Matchers::Equals("G1 F1\n"));
            }
        }
        WHEN("set_speed is called to set speed to 203.200022") {
            THEN("Output string is G1 F203.2") {
                REQUIRE_THAT(writer.set_speed(203.200022), Catch::Matchers::Equals("G1 F203.2\n"));
            }
        }
        WHEN("set_speed is called to set speed to 203.200522") {
            THEN("Output string is G1 F203.201") {
                REQUIRE_THAT(writer.set_speed(203.200522), Catch::Matchers::Equals("G1 F203.201\n"));
            }
        }
    }
}