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/*
* SPDX-FileCopyrightText: 2013 Canonical Ltd.
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* Author: Martin Pitt <martin.pitt@ubuntu.com>
*/
#include <locale.h>
#include <unistd.h>
#include <stdio.h>
#include <sys/wait.h>
#include <glib.h>
#include <gio/gio.h>
#include <umockdev.h>
#include <gudev/gudev.h>
typedef struct {
UMockdevTestbed *testbed;
} Fixture;
static void
fixture_setup (Fixture *f, G_GNUC_UNUSED const void *data)
{
f->testbed = umockdev_testbed_new ();
g_assert (umockdev_in_mock_environment ());
}
static GUdevDevice*
create_single_dev (Fixture *f, const char *device)
{
g_autoptr(GError) error = NULL;
g_autoptr(GUdevClient) client = NULL;
g_autolist(GUdevDevice) devices;
GUdevDevice *dev;
if (!umockdev_testbed_add_from_string (f->testbed, device, &error))
g_error ("Failed to add test device: %s", error->message);
client = g_udev_client_new (NULL);
devices = g_udev_client_query_by_subsystem (client, NULL);
g_assert_cmpint (g_list_length (devices), ==, 1);
dev = devices->data;
devices = g_list_delete_link (devices, devices);
return dev;
}
static void
fixture_teardown (Fixture *f, G_GNUC_UNUSED const void *data)
{
g_clear_object (&f->testbed);
}
static void
write_sysfs_attr (GUdevDevice *dev, const char *attr, const char *value)
{
g_autofree char *path = NULL;
FILE *sysfsfp;
path = g_build_filename (g_udev_device_get_sysfs_path (dev), attr, NULL);
sysfsfp = fopen (path, "w");
fwrite (value, strlen(value), 1, sysfsfp);
fclose (sysfsfp);
}
static void
test_uncached_sysfs_attr (Fixture *f, G_GNUC_UNUSED const void *data)
{
g_autoptr(GUdevDevice) dev = NULL;
dev = create_single_dev (f, "P: /devices/dev1\n"
"E: SUBSYSTEM=platform\n"
"A: dytc_lapmode=1\n"
"A: console=Y\\n\n"
"E: ID_MODEL=KoolGadget");
/* First access */
g_assert_true (g_udev_device_get_sysfs_attr_as_boolean (dev, "dytc_lapmode"));
g_assert_cmpstr (g_udev_device_get_sysfs_attr (dev, "dytc_lapmode"), ==, "1");
write_sysfs_attr (dev, "dytc_lapmode", "0\n");
/* This is cached */
g_assert_true (g_udev_device_get_sysfs_attr_as_boolean (dev, "dytc_lapmode"));
/* This is uncached, and updates the cache */
g_assert_false (g_udev_device_get_sysfs_attr_as_boolean_uncached (dev, "dytc_lapmode"));
g_assert_false (g_udev_device_get_sysfs_attr_as_boolean (dev, "dytc_lapmode"));
g_assert_cmpstr (g_udev_device_get_sysfs_attr (dev, "dytc_lapmode"), ==, "0");
/* Test N/Y and trailing linefeeds */
g_assert_true (g_udev_device_get_sysfs_attr_as_boolean (dev, "console"));
write_sysfs_attr (dev, "console", "N\n");
g_assert_false (g_udev_device_get_sysfs_attr_as_boolean_uncached (dev, "console"));
write_sysfs_attr (dev, "console", "Y");
g_assert_true (g_udev_device_get_sysfs_attr_as_boolean_uncached (dev, "console"));
}
static void
test_sysfs_attr_keys (Fixture *f, G_GNUC_UNUSED const void *data)
{
const char *expected[] = { "console", "dytc_lapmode", "subsystem", "uevent", NULL };
g_autoptr(GUdevDevice) dev = NULL;
dev = create_single_dev (f, "P: /devices/dev1\n"
"E: SUBSYSTEM=platform\n"
"A: dytc_lapmode=1\n"
"A: console=Y\\n\n"
"E: ID_MODEL=KoolGadget");
g_assert_cmpstrv (g_udev_device_get_sysfs_attr_keys (dev), expected);
}
static void
test_sysfs_attr_as_strv (Fixture *f, G_GNUC_UNUSED const void *data)
{
const char *expected[] = { "1", "2", "3", "4", "5", "6", NULL };
const char *empty[] = { NULL };
g_autoptr(GUdevDevice) dev = NULL;
dev = create_single_dev (f, "P: /devices/dev1\n"
"E: SUBSYSTEM=platform\n"
"A: test=1\\n2 3\\r4\\t5 \\t\\n6\n"
"E: ID_MODEL=KoolGadget");
/* Reading gives the expected result, even after updating the file */
g_assert_cmpstrv (g_udev_device_get_sysfs_attr_as_strv (dev, "test"), expected);
write_sysfs_attr (dev, "test", "\n");
g_assert_cmpstrv (g_udev_device_get_sysfs_attr_as_strv (dev, "test"), expected);
/* _uncached variant gets the new content and updates the cache */
g_assert_cmpstrv (g_udev_device_get_sysfs_attr_as_strv_uncached (dev, "test"), empty);
g_assert_cmpstrv (g_udev_device_get_sysfs_attr_as_strv (dev, "test"), empty);
}
int main(int argc, char **argv)
{
setlocale (LC_ALL, NULL);
g_test_init (&argc, &argv, NULL);
g_test_add ("/gudev/uncached_sysfs_attr", Fixture, NULL,
fixture_setup,
test_uncached_sysfs_attr,
fixture_teardown);
g_test_add ("/gudev/sysfs_attr_keys", Fixture, NULL,
fixture_setup,
test_sysfs_attr_keys,
fixture_teardown);
g_test_add ("/gudev/sysfs_attr_as_strv", Fixture, NULL,
fixture_setup,
test_sysfs_attr_as_strv,
fixture_teardown);
return g_test_run ();
}
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