Files
shadowsocks-libev/tests/test_base64_cpp.cpp
Max Lv 678a891ef9 tests: port remaining C unit tests to the C++ test harness
Convert acl, acl_literal, aead2022, base64, buffer, cache (legacy
reference), crypto, ipset, ipset_reference, json, netutils, ppbloom,
process, ref, ssurl and utils tests to test_helpers.hpp. ctest names are
unchanged; every assertion is kept. Build the ported sources with the
strict C++ warning set.
2026-10-15 01:33:51 +08:00

109 lines
2.8 KiB
C++

// SPDX-License-Identifier: GPL-3.0-or-later
// Base64 encoder/decoder (src/base64.cpp): round trips and invalid input.
#include <cstdint>
#include <cstring>
#include "base64.h"
#include "test_helpers.hpp"
namespace {
void test_encode_decode()
{
const uint8_t input[] = "Hello";
char encoded[BASE64_SIZE(5)];
uint8_t decoded[5];
char *ret = base64_encode(encoded, sizeof(encoded), input, 5);
SS_CHECK(ret != nullptr);
SS_CHECK(std::strlen(encoded) > 0);
int decoded_len = base64_decode(decoded, encoded, sizeof(decoded));
SS_CHECK(decoded_len == 5);
SS_CHECK(std::memcmp(decoded, input, 5) == 0);
}
void test_empty_input()
{
char encoded[BASE64_SIZE(0)];
char *ret = base64_encode(encoded, sizeof(encoded), reinterpret_cast<const uint8_t *>(""), 0);
SS_CHECK(ret != nullptr);
SS_CHECK(std::strlen(encoded) == 0);
}
void test_single_byte()
{
const uint8_t input[] = { 0x41 }; // 'A'
char encoded[BASE64_SIZE(1)];
uint8_t decoded[1];
SS_CHECK(base64_encode(encoded, sizeof(encoded), input, 1) != nullptr);
int decoded_len = base64_decode(decoded, encoded, sizeof(decoded));
SS_CHECK(decoded_len == 1);
SS_CHECK(decoded[0] == 0x41);
}
void test_two_bytes()
{
const uint8_t input[] = { 0x41, 0x42 }; // "AB"
char encoded[BASE64_SIZE(2)];
uint8_t decoded[2];
SS_CHECK(base64_encode(encoded, sizeof(encoded), input, 2) != nullptr);
int decoded_len = base64_decode(decoded, encoded, sizeof(decoded));
SS_CHECK(decoded_len == 2);
SS_CHECK(decoded[0] == 0x41);
SS_CHECK(decoded[1] == 0x42);
}
void test_three_bytes()
{
const uint8_t input[] = { 0x00, 0xFF, 0x80 };
char encoded[BASE64_SIZE(3)];
uint8_t decoded[3];
SS_CHECK(base64_encode(encoded, sizeof(encoded), input, 3) != nullptr);
int decoded_len = base64_decode(decoded, encoded, sizeof(decoded));
SS_CHECK(decoded_len == 3);
SS_CHECK(decoded[0] == 0x00);
SS_CHECK(decoded[1] == 0xFF);
SS_CHECK(decoded[2] == 0x80);
}
void test_roundtrip_binary()
{
const uint8_t input[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
char encoded[BASE64_SIZE(17)];
uint8_t decoded[17];
SS_CHECK(base64_encode(encoded, sizeof(encoded), input, 17) != nullptr);
int decoded_len = base64_decode(decoded, encoded, sizeof(decoded));
SS_CHECK(decoded_len == 17);
SS_CHECK(std::memcmp(decoded, input, 17) == 0);
}
void test_invalid_chars()
{
// Character '!' (ASCII 33) is below the base64 range start ('+' = 43).
uint8_t out[4] = {};
SS_CHECK(base64_decode(out, "!!!!", 4) == -1);
}
} // namespace
int main()
{
SS_RUN(test_encode_decode);
SS_RUN(test_empty_input);
SS_RUN(test_single_byte);
SS_RUN(test_two_bytes);
SS_RUN(test_three_bytes);
SS_RUN(test_roundtrip_binary);
SS_RUN(test_invalid_chars);
return 0;
}