lib/util/charset/tests/util_unistr.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    test suite for the util_unistr utility functions
   4
   5    Copyright (C) Catalyst.Net Ltd. 2023
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include "torture/torture.h"
  23
  24 #undef strcasecmp
  25 #undef strncasecmp
  26
  27 struct torture_suite *torture_local_util_unistr(TALLOC_CTX *mem_ctx);
  28
  29 static bool test_utf16_len(struct torture_context *tctx)
  30 {
  31         static const uint16_t empty_string[] = {'\0'};
  32         static const uint16_t foo_bar[] = {
  33                 'f', 'o', 'o', ' ', 'b', 'a', 'r', '\0'};
  34         static const uint16_t foo_bar_alternative[] = {0xd83c,
  35                                                        0xdd75,
  36                                                        0xd83c,
  37                                                        0xdd7e,
  38                                                        0xd83c,
  39                                                        0xdd7e,
  40                                                        ' ',
  41                                                        0xd83c,
  42                                                        0xdd31,
  43                                                        0xd83c,
  44                                                        0xdd30,
  45                                                        0xd83c,
  46                                                        0xdd41,
  47                                                        '\0'};
  48
  49         torture_assert_size_equal(tctx,
  50                                   utf16_len(empty_string),
  51                                   0,
  52                                   "length of empty string");
  53         torture_assert_size_equal(tctx,
  54                                   utf16_null_terminated_len(empty_string),
  55                                   2,
  56                                   "null‐terminated length of empty string");
  57         torture_assert_size_equal(tctx,
  58                                   utf16_len(foo_bar),
  59                                   14,
  60                                   "length of “foo bar”");
  61         torture_assert_size_equal(tctx,
  62                                   utf16_null_terminated_len(foo_bar),
  63                                   16,
  64                                   "null‐terminated length of “foo bar”");
  65         torture_assert_size_equal(tctx,
  66                                   utf16_len(foo_bar_alternative),
  67                                   26,
  68                                   "length of “🅵🅾🅾 🄱🄰🅁”");
  69         torture_assert_size_equal(tctx,
  70                                   utf16_null_terminated_len(
  71                                           foo_bar_alternative),
  72                                   28,
  73                                   "null‐terminated length of “🅵🅾🅾 🄱🄰🅁”");
  74
  75         return true;
  76 }
  77
  78 static bool test_utf16_len_n(struct torture_context *tctx)
  79 {
  80         static const uint16_t empty_string[] = {'\0'};
  81         static const uint16_t foo_bar[] = {'f', 'o', 'o', ' ', 'b', 'a', 'r'};
  82         static const uint16_t null_terminated_foo_bar[] = {
  83                 'f', 'o', 'o', ' ', 'b', 'a', 'r', '\0'};
  84         static const uint16_t twice_null_terminated_abc[] = {
  85                 'a', 'b', 'c', '\0', '\0'};
  86
  87         torture_assert_size_equal(tctx,
  88                                   utf16_len_n(empty_string, 0),
  89                                   0,
  90                                   "length of empty string");
  91         torture_assert_size_equal(tctx,
  92                                   utf16_null_terminated_len_n(empty_string, 0),
  93                                   0,
  94                                   "null‐terminated length of empty string");
  95
  96         torture_assert_size_equal(tctx,
  97                                   utf16_len_n(empty_string,
  98                                               sizeof empty_string),
  99                                   0,
 100                                   "length of null‐terminated empty string");
 101         torture_assert_size_equal(
 102                 tctx,
 103                 utf16_null_terminated_len_n(empty_string, sizeof empty_string),
 104                 2,
 105                 "null‐terminated length of null‐terminated empty string");
 106
 107         torture_assert_size_equal(tctx,
 108                                   utf16_len_n(foo_bar, sizeof foo_bar),
 109                                   14,
 110                                   "length of “foo bar”");
 111         torture_assert_size_equal(tctx,
 112                                   utf16_null_terminated_len_n(foo_bar,
 113                                                               sizeof foo_bar),
 114                                   14,
 115                                   "null‐terminated length of “foo bar”");
 116
 117         torture_assert_size_equal(tctx,
 118                                   utf16_len_n(null_terminated_foo_bar,
 119                                               sizeof null_terminated_foo_bar),
 120                                   14,
 121                                   "length of null‐terminated “foo bar”");
 122         torture_assert_size_equal(
 123                 tctx,
 124                 utf16_null_terminated_len_n(null_terminated_foo_bar,
 125                                             sizeof null_terminated_foo_bar),
 126                 16,
 127                 "null‐terminated length of null‐terminated “foo bar”");
 128
 129         torture_assert_size_equal(tctx,
 130                                   utf16_len_n(null_terminated_foo_bar,
 131                                               sizeof null_terminated_foo_bar -
 132                                                       1),
 133                                   14,
 134                                   "length of “foo bar” minus one byte");
 135         torture_assert_size_equal(
 136                 tctx,
 137                 utf16_null_terminated_len_n(null_terminated_foo_bar,
 138                                             sizeof null_terminated_foo_bar - 1),
 139                 14,
 140                 "null‐terminated length of “foo bar” minus one byte");
 141
 142         torture_assert_size_equal(tctx,
 143                                   utf16_len_n(twice_null_terminated_abc,
 144                                               sizeof twice_null_terminated_abc),
 145                                   6,
 146                                   "length of twice–null‐terminated “abc”");
 147         torture_assert_size_equal(
 148                 tctx,
 149                 utf16_null_terminated_len_n(twice_null_terminated_abc,
 150                                             sizeof twice_null_terminated_abc),
 151                 8,
 152                 "null‐terminated length of twice–null‐terminated “abc”");
 153
 154         return true;
 155 }
 156
 157 struct torture_suite *torture_local_util_unistr(TALLOC_CTX *mem_ctx)
 158 {
 159         struct torture_suite *suite = torture_suite_create(mem_ctx,
 160                                                            "util_unistr");
 161
 162         torture_suite_add_simple_test(suite, "utf16_len", test_utf16_len);
 163         torture_suite_add_simple_test(suite, "utf16_len_n", test_utf16_len_n);
 164
 165         return suite;
 166 }