LXR qemu/tests/unit/test-base64.c

   1/*
   2 * QEMU base64 helper test
   3 *
   4 * Copyright (c) 2015 Red Hat, Inc.
   5 *
   6 * This library is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU Lesser General Public
   8 * License as published by the Free Software Foundation; either
   9 * version 2.1 of the License, or (at your option) any later version.
  10 *
  11 * This library is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 * Lesser General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU Lesser General Public
  17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18 *
  19 */
  20
  21#include "qemu/osdep.h"
  22
  23#include "qapi/error.h"
  24#include "qemu/base64.h"
  25
  26static void test_base64_good(void)
  27{
  28    const char input[] =
  29        "QmVjYXVzZSB3ZSBmb2N1c2VkIG9uIHRoZSBzbmFrZSwgd2UgbW\n"
  30        "lzc2VkIHRoZSBzY29ycGlvbi4=";
  31    const char expect[] = "Because we focused on the snake, "
  32        "we missed the scorpion.";
  33
  34    size_t len;
  35    uint8_t *actual = qbase64_decode(input,
  36                                     -1,
  37                                     &len,
  38                                     &error_abort);
  39
  40    g_assert(actual != NULL);
  41    g_assert_cmpint(len, ==, strlen(expect));
  42    g_assert_cmpstr((char *)actual, ==, expect);
  43    g_free(actual);
  44}
  45
  46
  47static void test_base64_bad(const char *input,
  48                            size_t input_len)
  49{
  50    size_t len;
  51    Error *err = NULL;
  52    uint8_t *actual = qbase64_decode(input,
  53                                     input_len,
  54                                     &len,
  55                                     &err);
  56
  57    error_free_or_abort(&err);
  58    g_assert(actual == NULL);
  59    g_assert_cmpint(len, ==, 0);
  60}
  61
  62
  63static void test_base64_embedded_nul(void)
  64{
  65    /* We put a NUL character in the middle of the base64
  66     * text which is invalid data, given the expected length */
  67    const char input[] =
  68        "QmVjYXVzZSB3ZSBmb2N1c2VkIG9uIHRoZSBzbmFrZSwgd2UgbW\0"
  69        "lzc2VkIHRoZSBzY29ycGlvbi4=";
  70
  71    test_base64_bad(input, G_N_ELEMENTS(input) - 1);
  72}
  73
  74
  75static void test_base64_not_nul_terminated(void)
  76{
  77    const char input[] =
  78        "QmVjYXVzZSB3ZSBmb2N1c2VkIG9uIHRoZSBzbmFrZSwgd2UgbW\n"
  79        "lzc2VkIHRoZSBzY29ycGlvbi4=";
  80
  81    /* Using '-2' to make us drop the trailing NUL, thus
  82     * creating an invalid base64 sequence for decoding */
  83    test_base64_bad(input, G_N_ELEMENTS(input) - 2);
  84}
  85
  86
  87static void test_base64_invalid_chars(void)
  88{
  89    /* We put a single quote character in the middle
  90     * of the base64 text which is invalid data */
  91    const char input[] =
  92        "QmVjYXVzZSB3ZSBmb2N1c2VkIG9uIHRoZSBzbmFrZSwgd2UgbW'"
  93        "lzc2VkIHRoZSBzY29ycGlvbi4=";
  94
  95    test_base64_bad(input, strlen(input));
  96}
  97
  98
  99int main(int argc, char **argv)
 100{
 101    g_test_init(&argc, &argv, NULL);
 102    g_test_add_func("/util/base64/good", test_base64_good);
 103    g_test_add_func("/util/base64/embedded-nul", test_base64_embedded_nul);
 104    g_test_add_func("/util/base64/not-nul-terminated",
 105                    test_base64_not_nul_terminated);
 106    g_test_add_func("/util/base64/invalid-chars", test_base64_invalid_chars);
 107    return g_test_run();
 108}
 109