src/test/test-strbuf.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   This file is part of systemd.
   4
   5   Copyright 2013 Thomas H.P. Andersen
   6 ***/
   7
   8 #include <stdlib.h>
   9 #include <string.h>
  10
  11 #include "strbuf.h"
  12 #include "string-util.h"
  13 #include "strv.h"
  14 #include "util.h"
  15
  16 static ssize_t add_string(struct strbuf *sb, const char *s) {
  17         return strbuf_add_string(sb, s, strlen(s));
  18 }
  19
  20 static void test_strbuf(void) {
  21         struct strbuf *sb;
  22         _cleanup_strv_free_ char **l;
  23         ssize_t a, b, c, d, e, f, g, h;
  24
  25         sb = strbuf_new();
  26
  27         a = add_string(sb, "waldo");
  28         b = add_string(sb, "foo");
  29         c = add_string(sb, "bar");
  30         d = add_string(sb, "waldo");   /* duplicate */
  31         e = add_string(sb, "aldo");    /* duplicate */
  32         f = add_string(sb, "do");      /* duplicate */
  33         g = add_string(sb, "waldorf"); /* not a duplicate: matches from tail */
  34         h = add_string(sb, "");
  35
  36         /* check the content of the buffer directly */
  37         l = strv_parse_nulstr(sb->buf, sb->len);
  38
  39         assert_se(streq(l[0], "")); /* root */
  40         assert_se(streq(l[1], "waldo"));
  41         assert_se(streq(l[2], "foo"));
  42         assert_se(streq(l[3], "bar"));
  43         assert_se(streq(l[4], "waldorf"));
  44         assert_se(l[5] == NULL);
  45
  46         assert_se(sb->nodes_count == 5); /* root + 4 non-duplicates */
  47         assert_se(sb->dedup_count == 4);
  48         assert_se(sb->in_count == 8);
  49
  50         assert_se(sb->in_len == 29);    /* length of all strings added */
  51         assert_se(sb->dedup_len == 11); /* length of all strings duplicated */
  52         assert_se(sb->len == 23);       /* buffer length: in - dedup + \0 for each node */
  53
  54         /* check the returned offsets and the respective content in the buffer */
  55         assert_se(a == 1);
  56         assert_se(b == 7);
  57         assert_se(c == 11);
  58         assert_se(d == 1);
  59         assert_se(e == 2);
  60         assert_se(f == 4);
  61         assert_se(g == 15);
  62         assert_se(h == 0);
  63
  64         assert_se(streq(sb->buf + a, "waldo"));
  65         assert_se(streq(sb->buf + b, "foo"));
  66         assert_se(streq(sb->buf + c, "bar"));
  67         assert_se(streq(sb->buf + d, "waldo"));
  68         assert_se(streq(sb->buf + e, "aldo"));
  69         assert_se(streq(sb->buf + f, "do"));
  70         assert_se(streq(sb->buf + g, "waldorf"));
  71         assert_se(streq(sb->buf + h, ""));
  72
  73         strbuf_complete(sb);
  74         assert_se(sb->root == NULL);
  75
  76         strbuf_cleanup(sb);
  77 }
  78
  79 int main(int argc, const char *argv[]) {
  80         test_strbuf();
  81
  82         return 0;
  83 }