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/* GLib testing framework examples and tests
*
* Copyright © 2001 Hidetoshi Tajima
* Copyright © 2001 Ron Steinke
* Copyright © 2001 Owen Taylor
* Copyright © 2002 Manish Singh
* Copyright © 2011 Sjoerd Simons
* Copyright © 2012 Simon McVittie
* Copyright © 2013 Stef Walter
* Copyright © 2005, 2006, 2008, 2012, 2013 Matthias Clasen
* Copyright © 2020 Endless Mobile, Inc.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
* Author: Philip Withnall <withnall@endlessm.com>
*/
#include <glib.h>
#include <glib/gstdio.h>
static void
test_small_writes (void)
{
GIOChannel *io;
GIOStatus status = G_IO_STATUS_ERROR;
guint bytes_remaining;
gchar tmp;
GError *local_error = NULL;
io = g_io_channel_new_file ("iochannel-test-outfile", "w", &local_error);
g_assert_no_error (local_error);
g_io_channel_set_encoding (io, NULL, NULL);
g_io_channel_set_buffer_size (io, 1022);
bytes_remaining = 2 * g_io_channel_get_buffer_size (io);
tmp = 0;
while (bytes_remaining)
{
status = g_io_channel_write_chars (io, &tmp, 1, NULL, NULL);
if (status == G_IO_STATUS_ERROR)
break;
if (status == G_IO_STATUS_NORMAL)
bytes_remaining--;
}
g_assert_cmpint (status, ==, G_IO_STATUS_NORMAL);
g_io_channel_unref (io);
g_remove ("iochannel-test-outfile");
}
static void
test_read_write (void)
{
GIOChannel *gio_r, *gio_w ;
GError *local_error = NULL;
GString *buffer;
char *filename;
gint rlength = 0;
glong wlength = 0;
gsize length_out;
const gchar *encoding = "EUC-JP";
GIOStatus status;
const gsize buffer_size_bytes = 1024;
filename = g_test_build_filename (G_TEST_DIST, "iochannel-test-infile", NULL);
setbuf (stdout, NULL); /* For debugging */
gio_r = g_io_channel_new_file (filename, "r", &local_error);
g_assert_no_error (local_error);
gio_w = g_io_channel_new_file ("iochannel-test-outfile", "w", &local_error);
g_assert_no_error (local_error);
g_io_channel_set_encoding (gio_r, encoding, &local_error);
g_assert_no_error (local_error);
g_io_channel_set_buffer_size (gio_r, buffer_size_bytes);
status = g_io_channel_set_flags (gio_r, G_IO_FLAG_NONBLOCK, &local_error);
if (status == G_IO_STATUS_ERROR)
{
#ifdef G_OS_WIN32
g_test_message ("FIXME: not implemented on win32");
#else
/* Errors should not happen */
g_assert_no_error (local_error);
#endif
g_clear_error (&local_error);
}
buffer = g_string_sized_new (buffer_size_bytes);
while (TRUE)
{
do
status = g_io_channel_read_line_string (gio_r, buffer, NULL, &local_error);
while (status == G_IO_STATUS_AGAIN);
if (status != G_IO_STATUS_NORMAL)
break;
rlength += buffer->len;
do
status = g_io_channel_write_chars (gio_w, buffer->str, buffer->len,
&length_out, &local_error);
while (status == G_IO_STATUS_AGAIN);
if (status != G_IO_STATUS_NORMAL)
break;
wlength += length_out;
/* Ensure the whole line was written */
g_assert_cmpuint (length_out, ==, buffer->len);
g_test_message ("%s", buffer->str);
g_string_truncate (buffer, 0);
}
switch (status)
{
case G_IO_STATUS_EOF:
break;
case G_IO_STATUS_ERROR:
/* Errors should not happen */
g_assert_no_error (local_error);
g_clear_error (&local_error);
break;
default:
g_assert_not_reached ();
break;
}
do
status = g_io_channel_flush (gio_w, &local_error);
while (status == G_IO_STATUS_AGAIN);
if (status == G_IO_STATUS_ERROR)
{
/* Errors should not happen */
g_assert_no_error (local_error);
g_clear_error (&local_error);
}
g_test_message ("read %d bytes, wrote %ld bytes", rlength, wlength);
g_io_channel_unref (gio_r);
g_io_channel_unref (gio_w);
test_small_writes ();
g_free (filename);
g_string_free (buffer, TRUE);
}
static void
test_read_line_embedded_nuls (void)
{
const guint8 test_data[] = { 'H', 'i', '!', '\0', 'y', 'o', 'u', '\n', ':', ')', '\n' };
gint fd;
gchar *filename = NULL;
GIOChannel *channel = NULL;
GError *local_error = NULL;
gchar *line = NULL;
gsize line_length, terminator_pos;
GIOStatus status;
g_test_summary ("Test that reading a line containing embedded nuls works "
"when using non-standard line terminators.");
/* Write out a temporary file. */
fd = g_file_open_tmp ("glib-test-io-channel-XXXXXX", &filename, &local_error);
g_assert_no_error (local_error);
g_close (fd, NULL);
fd = -1;
g_file_set_contents (filename, (const gchar *) test_data, sizeof (test_data), &local_error);
g_assert_no_error (local_error);
/* Create the channel. */
channel = g_io_channel_new_file (filename, "r", &local_error);
g_assert_no_error (local_error);
/* Only break on newline characters, not nuls.
* Use length -1 here to exercise glib#2323; the case where length > 0
* is covered in glib/tests/protocol.c. */
g_io_channel_set_line_term (channel, "\n", -1);
g_io_channel_set_encoding (channel, NULL, &local_error);
g_assert_no_error (local_error);
status = g_io_channel_read_line (channel, &line, &line_length,
&terminator_pos, &local_error);
g_assert_no_error (local_error);
g_assert_cmpint (status, ==, G_IO_STATUS_NORMAL);
g_assert_cmpuint (line_length, ==, 8);
g_assert_cmpuint (terminator_pos, ==, 7);
g_assert_cmpmem (line, line_length, test_data, 8);
g_free (line);
g_io_channel_unref (channel);
g_free (filename);
}
int
main (int argc,
char *argv[])
{
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/io-channel/read-write", test_read_write);
g_test_add_func ("/io-channel/read-line/embedded-nuls", test_read_line_embedded_nuls);
return g_test_run ();
}
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