test-stringutils.c

   1 #include "test_utils.h"
   2 #include "string_utils.h"
   3 #include <stdlib.h>
   4 #include <string.h>
   5 #define T_ASSERT(pred, msg) do {\
   6         if ((pred)) { t_pass("%s: %s", __FUNCTION__, msg); } else { t_fail("%s: %s", __FUNCTION__, msg); } \
   7         } while (0)
   8
   9 void test_unescape_newlines() {
  10         char *src = "foo\nbar\\n\\baz\\n";
  11         char *expected = "foo\nbar\n\\baz\n";
  12         char *dest = (char *)malloc(strlen(src));
  13         size_t len = 0, expected_size = 0;
  14         len = unescape_newlines(dest, src, strlen(src) + 1);
  15         T_ASSERT(0 == strcmp(expected, dest), "newlines unescaped as expected");
  16         expected_size = strlen(expected) + 1;
  17         T_ASSERT(len == expected_size, "returned length is correct");
  18         expected_size = strlen(dest) + 1;
  19         T_ASSERT(len == expected_size, "destination buffer is of correct length");
  20         free(dest);
  21
  22         /*test binary safe-ness*/
  23         src = "foo\nbar\\nboll\0kaka";
  24         expected = "foo\nbar\nboll\0kaka";
  25         expected_size = 18;
  26         dest = (char *)malloc(expected_size);
  27         len = unescape_newlines(dest, src, 19);
  28         T_ASSERT(expected_size == len, "returned length is correct");
  29         T_ASSERT(0 == memcmp(expected, dest, len), "length argument is respected");
  30         free(dest);
  31
  32         /* test quoted backslash */
  33         src = "foo\\\\nbar";
  34         expected = "foo\\nbar";
  35         expected_size = 9;
  36         dest = (char *)malloc(expected_size);
  37         len = unescape_newlines(dest, src, strlen(src) + 1);
  38         T_ASSERT(expected_size == len, "returned length is correct");
  39         T_ASSERT(0 == memcmp(expected, dest, len), "length argument is respected");
  40         free(dest);
  41
  42         char in[] = "abc\\n";
  43         char out[16] = {0,};
  44         memset(out, 0, 16);
  45         len = unescape_newlines(out, in, 4);
  46         T_ASSERT(4 == len, "returned length is correct");
  47         T_ASSERT(4 == strlen(out), "only the correct number of bytes copied");
  48         T_ASSERT(out[3] == '\\', "half an escaped newline isn't parsed");
  49 }
  50
  51 int main(int argc, char *argv[]) {
  52         t_set_colors(0);
  53         t_verbose = 1;
  54
  55         t_start("testing string utilities");
  56         test_unescape_newlines();
  57
  58         t_end();
  59         return 0;
  60 }