lib/wind/test-utf8.c

   1 /*
   2  * Copyright (c) 2004 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #ifdef HAVE_CONFIG_H
  35 #include <config.h>
  36 #endif
  37 #include <stdio.h>
  38 #include <string.h>
  39 #include <err.h>
  40 #include "windlocl.h"
  41
  42 static const char *failing_testcases[] = {
  43     "\x80",
  44     "\xFF",
  45     "\xC0",
  46     "\xDF",
  47     "\xE0",
  48     "\xEF",
  49     "\xF0",
  50     "\xF7",
  51     "\xC0\x01",
  52     "\xC0\x7F",
  53     "\xC0\xFF",
  54     "\xC0\x80\x80",
  55     "\xE0\x01",
  56     "\xE0\x7F",
  57     "\xE0\x80",
  58     "\xE0\xFF",
  59     "\xE0\x80\x20",
  60     "\xE0\x80\xFF",
  61     "\xE0\x80\x80\x80",
  62     "\xF0\x01",
  63     "\xF0\x80",
  64     "\xF0\x80\x01",
  65     "\xF0\x80\x80",
  66     "\xF0\x80\x80\x01",
  67     "\xF0\x80\x80\xFF",
  68     NULL
  69 };
  70
  71 #define MAX_LENGTH 10
  72
  73 struct testcase {
  74     const char *utf8_str;
  75     size_t len;
  76     uint32_t u[MAX_LENGTH];
  77     int invalid_ucs2;
  78 };
  79
  80 static const struct testcase testcases[] = {
  81     {"", 0, {}},
  82     {"\x01", 1, {1}},
  83     {"\x7F", 1, {0x7F}},
  84     {"\x01\x7F", 2, {0x01, 0x7F}},
  85     {"\xC0\x80", 1, {0}},
  86     {"\xC0\x81", 1, {1}},
  87     {"\xC1\x80", 1, {0x40}},
  88     {"\xDF\xBF", 1, {0x7FF}},
  89     {"\xE0\x80\x80", 1, {0}},
  90     {"\xE0\x80\x81", 1, {1}},
  91     {"\xE0\x81\x80", 1, {0x40}},
  92     {"\xE1\x80\x80", 1, {0x1000}},
  93     {"\xEF\xBF\xBF", 1, {0xFFFF}},
  94     {"\xF0\x80\x80\x80", 1, {0}},
  95     {"\xF0\x80\x80\x81", 1, {1}},
  96     {"\xF0\x80\x81\x80", 1, {0x40}},
  97     {"\xF0\x81\x80\x80", 1, {0x1000}},
  98     {"\xF1\x80\x80\x80", 1, {0x40000}},
  99     {"\xF7\xBF\xBF\xBF", 1, {0X1FFFFF}, 1},
 100 };
 101
 102 int
 103 main(void)
 104 {
 105     unsigned failures = 0;
 106     unsigned i;
 107     const char **s;
 108     int ret;
 109     size_t len, len2;
 110     uint32_t u[MAX_LENGTH];
 111     char str[MAX_LENGTH * 4];
 112
 113     for (s = failing_testcases; *s != NULL; ++s) {
 114         len = MAX_LENGTH;
 115         ret = wind_utf8ucs4(*s, u, &len);
 116         if (ret == 0) {
 117             printf("utf8 decode of \"%s\" should have failed\n", *s);
 118             ++failures;
 119         }
 120     }
 121
 122     for (i = 0; i < sizeof(testcases)/sizeof(testcases[0]); ++i) {
 123         const struct testcase *t = &testcases[i];
 124
 125         ret = wind_utf8ucs4_length(t->utf8_str, &len);
 126         if (ret) {
 127             printf("utf8ucs4 length of \"%s\" should have succeeded\n",
 128                    t->utf8_str);
 129             ++failures;
 130             continue;
 131         }
 132         if (len != t->len) {
 133             printf("utf8ucs4_length of \"%s\" has wrong length: "
 134                    "expected: %u, actual: %u\n",
 135                    t->utf8_str, (unsigned int)t->len, (unsigned int)len);
 136             ++failures;
 137             continue;
 138         }
 139
 140         len = MAX_LENGTH;
 141         ret = wind_utf8ucs4(t->utf8_str, u, &len);
 142         if (ret) {
 143             printf("utf8 decode of \"%s\" should have succeeded\n",
 144                    t->utf8_str);
 145             ++failures;
 146             continue;
 147         }
 148         if (len != t->len) {
 149             printf("utf8 decode of \"%s\" has wrong length: "
 150                    "expected: %u, actual: %u\n",
 151                    t->utf8_str, (unsigned int)t->len, (unsigned int)len);
 152             ++failures;
 153             continue;
 154         }
 155         if (memcmp(t->u, u, len * sizeof(uint32_t)) != 0) {
 156             printf("utf8 decode of \"%s\" has wrong data\n",
 157                    t->utf8_str);
 158             ++failures;
 159             continue;
 160         }
 161         if (t->invalid_ucs2 == 0) {
 162             len2 = sizeof(str);
 163             ret = wind_ucs4utf8(u, len, str, &len2);
 164             if (ret) {
 165                 printf("ucs4 decode of \"%s\" should have succeeded\n",
 166                        t->utf8_str);
 167                 ++failures;
 168                 continue;
 169             }
 170         }
 171     }
 172
 173     return failures != 0;
 174 }