1/* Test of u8_to_u32() function.
2   Copyright (C) 2010 Free Software Foundation, Inc.
3
4   This program is free software: you can redistribute it and/or modify
5   it under the terms of the GNU General Public License as published by
6   the Free Software Foundation; either version 3 of the License, or
7   (at your option) any later version.
8
9   This program is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12   GNU General Public License for more details.
13
14   You should have received a copy of the GNU General Public License
15   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
16
17/* Written by Bruno Haible <bruno@clisp.org>, 2010.  */
18
19#include <config.h>
20
21#include "unistr.h"
22
23#include <errno.h>
24
25#include "macros.h"
26
27static int
28check (const uint8_t *input, size_t input_length,
29       const uint32_t *expected, size_t expected_length)
30{
31  size_t length;
32  uint32_t *result;
33
34  /* Test return conventions with resultbuf == NULL.  */
35  result = u8_to_u32 (input, input_length, NULL, &length);
36  if (!(result != NULL))
37    return 1;
38  if (!(length == expected_length))
39    return 2;
40  if (!(u32_cmp (result, expected, expected_length) == 0))
41    return 3;
42  free (result);
43
44  /* Test return conventions with resultbuf too small.  */
45  if (expected_length > 0)
46    {
47      uint32_t *preallocated;
48
49      length = expected_length - 1;
50      preallocated = (uint32_t *) malloc (length * sizeof (uint32_t));
51      result = u8_to_u32 (input, input_length, preallocated, &length);
52      if (!(result != NULL))
53        return 4;
54      if (!(result != preallocated))
55        return 5;
56      if (!(length == expected_length))
57        return 6;
58      if (!(u32_cmp (result, expected, expected_length) == 0))
59        return 7;
60      free (result);
61      free (preallocated);
62    }
63
64  /* Test return conventions with resultbuf large enough.  */
65  {
66    uint32_t *preallocated;
67
68    length = expected_length;
69    preallocated = (uint32_t *) malloc (length * sizeof (uint32_t));
70    result = u8_to_u32 (input, input_length, preallocated, &length);
71    if (!(result != NULL))
72      return 8;
73    if (!(preallocated == NULL || result == preallocated))
74      return 9;
75    if (!(length == expected_length))
76      return 10;
77    if (!(u32_cmp (result, expected, expected_length) == 0))
78      return 11;
79    free (preallocated);
80  }
81
82  return 0;
83}
84
85int
86main ()
87{
88  /* Empty string.  */
89  ASSERT (check (NULL, 0, NULL, 0) == 0);
90
91  /* Simple string.  */
92  { /* "Gr���� Gott. ������������������������! x=(-b��sqrt(b��-4ac))/(2a)  ���������,������,������" */
93    static const uint8_t input[] =
94      { 'G', 'r', 0xC3, 0xBC, 0xC3, 0x9F, ' ', 'G', 'o', 't', 't', '.', ' ',
95        0xD0, 0x97, 0xD0, 0xB4, 0xD1, 0x80, 0xD0, 0xB0, 0xD0, 0xB2, 0xD1, 0x81,
96        0xD1, 0x82, 0xD0, 0xB2, 0xD1, 0x83, 0xD0, 0xB9, 0xD1, 0x82, 0xD0, 0xB5,
97        '!', ' ', 'x', '=', '(', '-', 'b', 0xC2, 0xB1, 's', 'q', 'r', 't', '(',
98        'b', 0xC2, 0xB2, '-', '4', 'a', 'c', ')', ')', '/', '(', '2', 'a', ')',
99        ' ', ' ', 0xE6, 0x97, 0xA5, 0xE6, 0x9C, 0xAC, 0xE8, 0xAA, 0x9E, ',',
100        0xE4, 0xB8, 0xAD, 0xE6, 0x96, 0x87, ',',
101        0xED, 0x95, 0x9C, 0xEA, 0xB8, 0x80, '\n'
102      };
103    static const uint32_t expected[] =
104      { 'G', 'r', 0x00FC, 0x00DF, ' ', 'G', 'o', 't', 't', '.', ' ',
105        0x0417, 0x0434, 0x0440, 0x0430, 0x0432, 0x0441, 0x0442, 0x0432, 0x0443,
106        0x0439, 0x0442, 0x0435, '!', ' ',
107        'x', '=', '(', '-', 'b', 0x00B1, 's', 'q', 'r', 't', '(', 'b', 0x00B2,
108        '-', '4', 'a', 'c', ')', ')', '/', '(', '2', 'a', ')', ' ', ' ',
109        0x65E5, 0x672C, 0x8A9E, ',', 0x4E2D, 0x6587, ',', 0xD55C, 0xAE00, '\n'
110      };
111    ASSERT (check (input, SIZEOF (input), expected, SIZEOF (expected)) == 0);
112  }
113
114  /* String with characters outside the BMP.  */
115  {
116    static const uint8_t input[] =
117      { '-', '(', 0xF0, 0x9D, 0x94, 0x9E, 0xC3, 0x97, 0xF0, 0x9D, 0x94, 0x9F,
118        ')', '=', 0xF0, 0x9D, 0x94, 0x9F, 0xC3, 0x97, 0xF0, 0x9D, 0x94, 0x9E
119      };
120    static const uint32_t expected[] =
121      { '-', '(', 0x1D51E, 0x00D7, 0x1D51F, ')', '=',
122        0x1D51F, 0x00D7, 0x1D51E
123      };
124    ASSERT (check (input, SIZEOF (input), expected, SIZEOF (expected)) == 0);
125  }
126
127  /* Invalid input.  */
128  {
129    static const uint8_t input[] = { 'x', 0xC2, 0xC3, 'y' };
130#if 0 /* Currently invalid input is rejected, not accommodated.  */
131    static const uint32_t expected[] = { 'x', 0xFFFD, 0xFFFD, 'y' };
132    ASSERT (check (input, SIZEOF (input), expected, SIZEOF (expected)) == 0);
133#else
134    size_t length;
135    uint32_t *result;
136    uint32_t preallocated[10];
137
138    /* Test return conventions with resultbuf == NULL.  */
139    result = u8_to_u32 (input, SIZEOF (input), NULL, &length);
140    ASSERT (result == NULL);
141    ASSERT (errno == EILSEQ);
142
143    /* Test return conventions with resultbuf too small.  */
144    length = 1;
145    result = u8_to_u32 (input, SIZEOF (input), preallocated, &length);
146    ASSERT (result == NULL);
147    ASSERT (errno == EILSEQ);
148
149    /* Test return conventions with resultbuf large enough.  */
150    length = SIZEOF (preallocated);
151    result = u8_to_u32 (input, SIZEOF (input), preallocated, &length);
152    ASSERT (result == NULL);
153    ASSERT (errno == EILSEQ);
154#endif
155  }
156
157  return 0;
158}
159