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annotate tests/unistr/test-strchr.h @ 40224:5d9b82ca550a

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tests: Free allocated memory. Reported by <deltatau@protonmail.com> via Assaf Gordon. * tests/test-astrxfrm.c (main): Free allocated memory. * tests/test-bitset.c (compare, check_attributes): Free allocated bitsets. * tests/test-filenamecat.c (main): Free allocated memory. * tests/test-freadahead.c (main): Free allocated memory and close stdin. * tests/test-freadptr.c (main): Likewise. * tests/test-freadptr2.c (main): Free allocated memory. * tests/test-freadseek.c (main): Likewise. * tests/test-gc-arcfour.c (main): Close allocated context. * tests/test-gc-arctwo.c (main): Likewise. * tests/test-gc-des.c (main): Close all allocated contexts. * tests/test-pipe-filter-gi1.c (main): Free allocated memory. * tests/test-pipe-filter-ii1.c (main): Likewise. * tests/test-posix_spawn_file_actions_addchdir.c (main): Destroy the allocated file actions. * tests/test-posix_spawn_file_actions_addclose.c (main): Likewise. * tests/test-posix_spawn_file_actions_adddup2.c (main): Likewise. * tests/test-posix_spawn_file_actions_addopen.c (main): Likewise. * tests/test-sameacls.c (main): Free allocated memory and ACLs. * tests/test-strfmon_l.c (main): Free allocated locales. * tests/test-striconveh.c (main): Free allocated iconv_t objects. * tests/uniconv/test-u8-conv-to-enc.c (main): Free allocated memory. * tests/uniconv/test-u16-conv-to-enc.c (main): Likewise. * tests/uniconv/test-u32-conv-to-enc.c (main): Likewise. * tests/unistr/test-chr.h (main): Free input32. * tests/unistr/test-strchr.h (test_strchr): Likewise.
author Bruno Haible <bruno@clisp.org>
date Sun, 10 Mar 2019 14:05:09 +0100
parents b06060465f09
children
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1 /* Test of uN_strchr() functions.
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2 Copyright (C) 2008-2019 Free Software Foundation, Inc.
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3
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4 This program is free software: you can redistribute it and/or modify
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5 it under the terms of the GNU General Public License as published by
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6 the Free Software Foundation; either version 3 of the License, or
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7 (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 GNU General Public License for more details.
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13
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14 You should have received a copy of the GNU General Public License
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15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
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16
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17 /* Written by Paolo Bonzini <bonzini@gnu.org>, 2010.
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18 Based on test-chr.h, by Eric Blake and Bruno Haible. */
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19
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20 static void
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21 test_strchr (void)
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22 {
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23 size_t size = 0x100000;
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24 size_t length;
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25 size_t i;
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26 UNIT *input;
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27 uint32_t *input32 = (uint32_t *) malloc ((size + 1) * sizeof (uint32_t));
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28 ASSERT (input32);
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29
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30 input32[0] = 'a';
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31 input32[1] = 'b';
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32 u32_set (input32 + 2, 'c', 1024);
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33 for (i = 1026; i < size - 2; i += 63)
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34 {
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35 size_t last = i + 63 < size - 2 ? i + 63 : size - 2;
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36 ucs4_t uc = 'd' | (i - 1026);
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37 if (uc >= 0xd800 && uc <= 0xdfff)
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38 uc |= 0x100000;
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39 u32_set (input32 + i, uc, last - i);
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40 }
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41 input32[size - 2] = 'e';
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42 input32[size - 1] = 'a';
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43 input32[size] = 0;
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44
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45 input = U32_TO_U (input32, size + 1, NULL, &length);
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46 ASSERT (input);
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47
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48 /* Basic behavior tests. */
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49 ASSERT (U_STRCHR (input, 'a') == input);
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50 ASSERT (U_STRCHR (input, 'b') == input + 1);
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51 ASSERT (U_STRCHR (input, 'c') == input + 2);
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52
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53 {
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54 UNIT *exp = input + 1026;
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55 UNIT *prev = input + 2;
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56
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57 for (i = 1026; i < size - 2; i += 63)
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58 {
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59 UNIT c[6];
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60 size_t n;
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61 ucs4_t uc = 'd' | (i - 1026);
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62 if (uc >= 0xd800 && uc <= 0xdfff)
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63 uc |= 0x100000;
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64 n = U_UCTOMB (c, uc, 6);
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65 ASSERT (exp < input + length - 2);
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66 ASSERT (U_STRCHR (prev, uc) == exp);
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67 ASSERT (memcmp (exp, c, n * sizeof (UNIT)) == 0);
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68 prev = exp;
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69 exp += n * 63;
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70 }
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71 }
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72
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73 ASSERT (U_STRCHR (input + 1, 'a') == input + length - 2);
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74 ASSERT (U_STRCHR (input + 1, 'e') == input + length - 3);
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75
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76 ASSERT (U_STRCHR (input, 'f') == NULL);
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77 ASSERT (U_STRCHR (input, '\0') == input + length - 1);
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78
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79 /* Check that a very long haystack is handled quickly if the byte is
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80 found near the beginning. */
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81 {
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82 size_t repeat = 10000;
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83 for (; repeat > 0; repeat--)
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84 {
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85 ASSERT (U_STRCHR (input, 'c') == input + 2);
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86 }
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87 }
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88
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89 /* Alignment tests. */
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90 {
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91 int i, j;
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92 for (i = 0; i < 32; i++)
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93 {
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94 for (j = 0; j < 127; j++)
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95 input[i + j] = j + 1;
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96 input[i + 128] = 0;
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97 for (j = 0; j < 127; j++)
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98 {
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99 ASSERT (U_STRCHR (input + i, j + 1) == input + i + j);
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100 }
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101 }
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102 }
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103
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104 /* Check that uN_strchr() does not read past the end of the string. */
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105 {
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106 char *page_boundary = (char *) zerosize_ptr ();
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107 size_t n;
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108
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109 if (page_boundary != NULL)
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110 {
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111 for (n = 2; n <= 500 / sizeof (UNIT); n++)
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112 {
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113 UNIT *mem = (UNIT *) (page_boundary - n * sizeof (UNIT));
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114 U_SET (mem, 'X', n - 2);
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115 mem[n - 2] = 0;
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116 ASSERT (U_STRCHR (mem, 'U') == NULL);
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117 mem[n - 2] = 'X';
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118 mem[n - 1] = 0;
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119 ASSERT (U_STRCHR (mem, 'U') == NULL);
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120 }
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121 }
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122 }
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123
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124 #if 0
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125 /* This check is disabled, because uN_strchr() is allowed to read past the
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126 first occurrence of the byte being searched. In fact, u8_strchr() does
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127 so, on i586 glibc systems: u8_strchr calls strchr, which in
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128 glibc/sysdeps/i386/i586/strchr.S loads the second word before the
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129 handling of the first word has been completed. */
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130 /* Check that uN_strchr() does not read past the first occurrence of the
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131 byte being searched. */
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132 {
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133 char *page_boundary = (char *) zerosize_ptr ();
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134 size_t n;
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135
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136 if (page_boundary != NULL)
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137 {
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138 for (n = 2; n <= 500 / sizeof (UNIT); n++)
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139 {
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140 UNIT *mem = (UNIT *) (page_boundary - n * sizeof (UNIT));
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141 U_SET (mem, 'X', n - 1);
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142 mem[n - 1] = 0;
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143 ASSERT (U_STRCHR (mem, 'U') == NULL);
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144
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145 {
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146 size_t i;
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147
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148 for (i = 0; i < n; i++)
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149 {
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150 mem[i] = 'U';
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151 ASSERT (U_STRCHR (mem, 'U') == mem + i);
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152 mem[i] = 'X';
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153 }
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154 }
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155 }
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156 }
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157 }
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158 #endif
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159
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160 free (input);
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161 if (sizeof (UNIT) != sizeof (uint32_t))
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162 free (input32);
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163 }