libfprint/tests/test-utils.c

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/*
* Unit tests for libfprint
* Copyright (C) 2019 Marco Trevisan <marco.trevisan@canonical.com>
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <libfprint/fprint.h>
#include <glib/gstdio.h>
#include "test-utils.h"
void
fpt_teardown_virtual_device_environment (void)
{
const char *path = g_getenv ("FP_VIRTUAL_IMAGE");
if (path)
{
g_autofree char *temp_dir = g_path_get_dirname (path);
g_unsetenv ("FP_VIRTUAL_IMAGE");
g_unlink (path);
g_rmdir (temp_dir);
}
}
static void
on_signal_event (int sig)
{
fpt_teardown_virtual_device_environment ();
}
void
fpt_setup_virtual_device_environment (void)
{
g_autoptr(GError) error = NULL;
g_autofree char *temp_dir = NULL;
g_autofree char *temp_path = NULL;
g_assert_null (g_getenv ("FP_VIRTUAL_IMAGE"));
temp_dir = g_dir_make_tmp ("libfprint-XXXXXX", &error);
g_assert_no_error (error);
temp_path = g_build_filename (temp_dir, "virtual-image.socket", NULL);
g_setenv ("FP_VIRTUAL_IMAGE", temp_path, TRUE);
signal (SIGKILL, on_signal_event);
signal (SIGABRT, on_signal_event);
signal (SIGSEGV, on_signal_event);
signal (SIGTERM, on_signal_event);
signal (SIGQUIT, on_signal_event);
signal (SIGPIPE, on_signal_event);
}
FptContext *
fpt_context_new (void)
{
FptContext *tctx;
tctx = g_new0 (FptContext, 1);
tctx->fp_context = fp_context_new ();
return tctx;
}
FptContext *
fpt_context_new_with_virtual_imgdev (void)
{
FptContext *tctx;
GPtrArray *devices;
unsigned int i;
fpt_setup_virtual_device_environment ();
tctx = fpt_context_new ();
devices = fp_context_get_devices (tctx->fp_context);
g_assert_nonnull (devices);
g_assert_cmpuint (devices->len, ==, 1);
for (i = 0; i < devices->len; ++i)
{
FpDevice *device = devices->pdata[i];
if (g_strcmp0 (fp_device_get_driver (device), "virtual_image") == 0)
{
tctx->device = device;
break;
}
}
g_assert_true (FP_IS_DEVICE (tctx->device));
g_object_add_weak_pointer (G_OBJECT (tctx->device), (gpointer) & tctx->device);
return tctx;
}
void
fpt_context_free (FptContext *tctx)
{
if (tctx->device && fp_device_is_open (tctx->device))
{
g_autoptr(GError) error = NULL;
fp_device_close_sync (tctx->device, NULL, &error);
g_assert_no_error (error);
}
g_clear_object (&tctx->fp_context);
g_free (tctx);
fpt_teardown_virtual_device_environment ();
}