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-rw-r--r--tests/chargen.c109
1 files changed, 109 insertions, 0 deletions
diff --git a/tests/chargen.c b/tests/chargen.c
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index 0000000..a3b3290
--- a/dev/null
+++ b/tests/chargen.c
@@ -0,0 +1,109 @@
+/* This file is part of GNU Pies testsuite.
+ Copyright (C) 2019 Sergey Poznyakoff
+
+ GNU Pies is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ GNU Pies is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GNU Pies. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <config.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <c-ctype.h>
+#include <libpies.h>
+
+enum { LINESIZ = 72 };
+
+static int
+next_char (int stop)
+{
+ static int ch = 0;
+ static int i = 0;
+ static int c;
+ int ret;
+
+ switch (i++)
+ {
+ case 0:
+ do
+ ch = (ch + 1) % 128;
+ while (!c_isprint (ch));
+ if (ch == stop)
+ return 0;
+ c = ch;
+ break;
+
+ case LINESIZ:
+ return '\r';
+
+ case LINESIZ+1:
+ i = 0;
+ return '\n';
+ }
+
+ ret = c;
+ do
+ c = (c + 1) % 128;
+ while (!c_isprint (c));
+
+ return ret;
+}
+
+int
+main (int argc, char **argv)
+{
+ struct pies_url *url;
+ int fd;
+ FILE *fp;
+ unsigned n;
+ int c, first;
+ char *progname = argv[0];
+
+ if (argc != 2)
+ {
+ fprintf (stderr, "usage: %s URL\n", progname);
+ fprintf (stderr, "Tests the character generator protocol\n");
+ return 64;
+ }
+
+ if (pies_url_create (&url, argv[1]))
+ {
+ perror (argv[0]);
+ return 64;
+ }
+
+ fd = url_connect (url, NULL);
+ fp = fdopen (fd, "r");
+
+ first = next_char (0);
+ c = first;
+ do
+ {
+ int in = fgetc (fp);
+ if (in == EOF)
+ {
+ fprintf (stderr, "%s: unexpected EOF in %u\n", progname, n);
+ return 1;
+ }
+ if (in != c)
+ {
+ fprintf (stderr, "%s: got %d instead of %d in %u\n",
+ progname, in, c, n);
+ return 1;
+ }
+ n++;
+ }
+ while ((c = next_char (first)) != 0);
+ return 0;
+}
+
+
+

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