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annotate tests/test-getdelim.c @ 16201:8250f2777afc

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maint: update all copyright year number ranges Run "make update-copyright".
author Jim Meyering <meyering@redhat.com>
date Sun, 01 Jan 2012 10:04:58 +0100
parents 97fc9a21a8fb
children bb182ee4a09d
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1 /* Test of getdelim() function.
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2 Copyright (C) 2007-2012 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, or (at your option)
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7 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, write to the Free Software Foundation,
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16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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17
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18 /* Written by Eric Blake <ebb9@byu.net>, 2007. */
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19
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20 #include <config.h>
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21
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22 #include <stdio.h>
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23
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24 #include "signature.h"
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25 SIGNATURE_CHECK (getdelim, ssize_t, (char **, size_t *, int, FILE *));
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26
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27 #include <stdlib.h>
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28 #include <string.h>
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29
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30 #include "macros.h"
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31
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32 int
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33 main (void)
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34 {
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35 FILE *f;
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36 char *line;
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37 size_t len;
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38 ssize_t result;
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39
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40 /* Create test file. */
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41 f = fopen ("test-getdelim.txt", "wb");
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42 if (!f || fwrite ("anAnbcnd\0f", 1, 10, f) != 10 || fclose (f) != 0)
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43 {
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44 fputs ("Failed to create sample file.\n", stderr);
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45 remove ("test-getdelim.txt");
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46 return 1;
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47 }
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48 f = fopen ("test-getdelim.txt", "rb");
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49 if (!f)
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50 {
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51 fputs ("Failed to reopen sample file.\n", stderr);
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52 remove ("test-getdelim.txt");
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53 return 1;
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54 }
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55
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56 /* Test initial allocation, which must include trailing NUL. */
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57 line = NULL;
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58 len = 0;
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59 result = getdelim (&line, &len, 'n', f);
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60 ASSERT (result == 2);
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61 ASSERT (strcmp (line, "an") == 0);
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62 ASSERT (2 < len);
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63 free (line);
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64
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65 /* Test initial allocation again, with line = NULL and len != 0. */
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66 line = NULL;
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67 len = (size_t)(~0) / 4;
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68 result = getdelim (&line, &len, 'n', f);
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69 ASSERT (result == 2);
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70 ASSERT (strcmp (line, "An") == 0);
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71 ASSERT (2 < len);
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72 free (line);
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73
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74 /* Test growth of buffer. */
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75 line = malloc (1);
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76 len = 1;
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77 result = getdelim (&line, &len, 'n', f);
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78 ASSERT (result == 3);
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79 ASSERT (strcmp (line, "bcn") == 0);
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80 ASSERT (3 < len);
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81
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82 /* Test embedded NULs and EOF behavior. */
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83 result = getdelim (&line, &len, 'n', f);
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84 ASSERT (result == 3);
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85 ASSERT (memcmp (line, "d\0f", 4) == 0);
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86 ASSERT (3 < len);
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87
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88 result = getdelim (&line, &len, 'n', f);
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89 ASSERT (result == -1);
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90
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91 free (line);
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92 fclose (f);
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93 remove ("test-getdelim.txt");
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94 return 0;
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95 }