shellmatta/test/unittest/shellmatta_utils/test_utils_shellItoa.cpp

/*
 * Copyright (c) 2019 - 2024 Stefan Strobel <stefan.strobel@shimatta.net>
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/.
 */

/**
 * @file    test_utils_shellItoa.c
 * @brief   unittest for shellmatta utils_shellItoa
 * @author  Stefan Strobel <stefan.strobel@shimatta.net>
 */

#include "test/framework/catch.hpp"
#include "src/shellmatta_utils.c"
#include <string.h>

TEST_CASE( "shellmatta_utils.c - itoa - 123456 base 10") {
    char buffer[64];
    memset(buffer, 0, sizeof(buffer));
    CHECK(utils_shellItoa(123456, buffer, 10) == 6);
    REQUIRE_THAT(buffer, Catch::Matchers::Equals("123456"));
}

TEST_CASE( "shellmatta_utils.c - itoa - 0x0ABBCCDD base 16") {
    char buffer[64];
    memset(buffer, 0, sizeof(buffer));
    CHECK(utils_shellItoa(0x0ABBCCDD, buffer, 16) == 7);
    REQUIRE_THAT(buffer, Catch::Matchers::Equals("ABBCCDD"));
}

TEST_CASE( "shellmatta_utils.c - itoa - -574236 base 10") {
    char buffer[64];
    memset(buffer, 0, sizeof(buffer));
    CHECK(utils_shellItoa(-574236, buffer, 10) == 7);
    REQUIRE_THAT(buffer, Catch::Matchers::Equals("-574236"));
}

TEST_CASE( "shellmatta_utils.c - itoa - 0x80000000 base 2") {
    char buffer[64];
    memset(buffer, 0, sizeof(buffer));
    CHECK(utils_shellItoa(0x80000000, buffer, 2) == 33);
    REQUIRE_THAT(buffer, Catch::Matchers::Equals("-10000000000000000000000000000000"));
}

TEST_CASE( "shellmatta_utils.c - itoa - 0x7FFFFFFF base 2") {
    char buffer[64];
    memset(buffer, 0, sizeof(buffer));
    CHECK(utils_shellItoa(0x7FFFFFFF, buffer, 2) == 31);
    REQUIRE_THAT(buffer, Catch::Matchers::Equals("1111111111111111111111111111111"));
}

TEST_CASE( "shellmatta_utils.c - itoa - 0x7FFFFFFF base 1 - wrong base") {
    char buffer[64];
    memset(buffer, 0, sizeof(buffer));
    CHECK(utils_shellItoa(0x7FFFFFFF, buffer, 1) == 0);
    REQUIRE_THAT(buffer, Catch::Matchers::Equals("\0"));
}

TEST_CASE( "shellmatta_utils.c - itoa - 0x7FFFFFFF base 17 - wrong base") {
    char buffer[64];
    memset(buffer, 0, sizeof(buffer));
    CHECK(utils_shellItoa(0x7FFFFFFF, buffer, 17) == 0);
    REQUIRE_THAT(buffer, Catch::Matchers::Equals("\0"));
}