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Copy pathtest-hex.cpp
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86 lines (74 loc) · 2.4 KB
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/**
* SPDX-License-Identifier: GPL-2.0-or-later
*
* This file is part of osm2pgsql (https://osm2pgsql.org/).
*
* Copyright (C) 2006-2026 by the osm2pgsql developer community.
* For a full list of authors see the git log.
*/
#include <catch.hpp>
#include "hex.hpp"
#include <string>
TEST_CASE("hex encode a string", "[NoDB]")
{
std::string result;
util::encode_hex("ab~", &result);
REQUIRE(result.size() == 6);
REQUIRE(result == "61627E");
}
TEST_CASE("hex encode a string adding to existing string", "[NoDB]")
{
std::string result{"0x"};
util::encode_hex("\xca\xfe", &result);
REQUIRE(result.size() == 6);
REQUIRE(result == "0xCAFE");
}
TEST_CASE("hex encoding an empty string doesn't change output string", "[NoDB]")
{
std::string result{"foo"};
util::encode_hex("", &result);
REQUIRE(result == "foo");
}
TEST_CASE("wkb hex decode of valid and invalid hex characters")
{
REQUIRE(util::decode_hex_char('0') == 0);
REQUIRE(util::decode_hex_char('9') == 9);
REQUIRE(util::decode_hex_char('a') == 0x0a);
REQUIRE(util::decode_hex_char('f') == 0x0f);
REQUIRE(util::decode_hex_char('A') == 0x0a);
REQUIRE(util::decode_hex_char('F') == 0x0f);
REQUIRE(util::decode_hex_char('#') == 0);
REQUIRE(util::decode_hex_char('@') == 0);
REQUIRE(util::decode_hex_char('g') == 0);
REQUIRE(util::decode_hex_char('G') == 0);
REQUIRE(util::decode_hex_char(0x7f) == 0);
}
TEST_CASE("wkb hex decode of valid hex string")
{
std::string const hex{"0001020F1099FF"};
std::string const data = {0x00,
0x01,
0x02,
0x0f,
0x10,
static_cast<char>(0x99),
static_cast<char>(0xff)};
auto const result = util::decode_hex(hex);
REQUIRE(result.size() == hex.size() / 2);
REQUIRE(result == data);
}
TEST_CASE("wkb hex decode of empty string is okay")
{
std::string const hex{};
REQUIRE(util::decode_hex(hex).empty());
}
TEST_CASE("wkb hex decode of string with odd number of characters fails")
{
REQUIRE_THROWS(util::decode_hex("a"));
REQUIRE_THROWS(util::decode_hex("abc"));
REQUIRE_THROWS(util::decode_hex("00000"));
}
TEST_CASE("hex encode and decode") {
std::string const str{"something somewhere"};
REQUIRE(util::decode_hex(util::encode_hex(str)) == str);
}