tests/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 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 #include <glib.h>
  23
  24 #include "qapi/error.h"
  25 #include "qemu/base64.h"
  26
  27 static void test_base64_good(void)
  28 {
  29     const char input[] =
  30         "QmVjYXVzZSB3ZSBmb2N1c2VkIG9uIHRoZSBzbmFrZSwgd2UgbW\n"
  31         "lzc2VkIHRoZSBzY29ycGlvbi4=";
  32     const char expect[] = "Because we focused on the snake, "
  33         "we missed the scorpion.";
  34
  35     size_t len;
  36     uint8_t *actual = qbase64_decode(input,
  37                                      -1,
  38                                      &len,
  39                                      &error_abort);
  40
  41     g_assert(actual != NULL);
  42     g_assert_cmpint(len, ==, strlen(expect));
  43     g_assert_cmpstr((char *)actual, ==, expect);
  44     g_free(actual);
  45 }
  46
  47
  48 static void test_base64_bad(const char *input,
  49                             size_t input_len)
  50 {
  51     size_t len;
  52     Error *err = NULL;
  53     uint8_t *actual = qbase64_decode(input,
  54                                      input_len,
  55                                      &len,
  56                                      &err);
  57
  58     g_assert(err != NULL);
  59     g_assert(actual == NULL);
  60     g_assert_cmpint(len, ==, 0);
  61     error_free(err);
  62 }
  63
  64
  65 static void test_base64_embedded_nul(void)
  66 {
  67     /* We put a NUL character in the middle of the base64
  68      * text which is invalid data, given the expected length */
  69     const char input[] =
  70         "QmVjYXVzZSB3ZSBmb2N1c2VkIG9uIHRoZSBzbmFrZSwgd2UgbW\0"
  71         "lzc2VkIHRoZSBzY29ycGlvbi4=";
  72
  73     test_base64_bad(input, G_N_ELEMENTS(input) - 1);
  74 }
  75
  76
  77 static void test_base64_not_nul_terminated(void)
  78 {
  79     const char input[] =
  80         "QmVjYXVzZSB3ZSBmb2N1c2VkIG9uIHRoZSBzbmFrZSwgd2UgbW\n"
  81         "lzc2VkIHRoZSBzY29ycGlvbi4=";
  82
  83     /* Using '-2' to make us drop the trailing NUL, thus
  84      * creating an invalid base64 sequence for decoding */
  85     test_base64_bad(input, G_N_ELEMENTS(input) - 2);
  86 }
  87
  88
  89 static void test_base64_invalid_chars(void)
  90 {
  91     /* We put a single quote character in the middle
  92      * of the base64 text which is invalid data */
  93     const char input[] =
  94         "QmVjYXVzZSB3ZSBmb2N1c2VkIG9uIHRoZSBzbmFrZSwgd2UgbW'"
  95         "lzc2VkIHRoZSBzY29ycGlvbi4=";
  96
  97     test_base64_bad(input, strlen(input));
  98 }
  99
 100
 101 int main(int argc, char **argv)
 102 {
 103     g_test_init(&argc, &argv, NULL);
 104     g_test_add_func("/util/base64/good", test_base64_good);
 105     g_test_add_func("/util/base64/embedded-nul", test_base64_embedded_nul);
 106     g_test_add_func("/util/base64/not-nul-terminated",
 107                     test_base64_not_nul_terminated);
 108     g_test_add_func("/util/base64/invalid-chars", test_base64_invalid_chars);
 109     return g_test_run();
 110 }