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/*
* libusb umockdev based tests
*
* Copyright (C) 2022 Benjamin Berg <bberg@redhat.com>
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#include <glib.h>
#include <string.h>
#include <unistd.h>
#include "gusb.h"
#include "umockdev.h"
#define UNUSED_DATA __attribute__((unused)) gconstpointer unused_data
/* avoid leak reports inside assertions; leaking stuff on assertion failures does not matter in
* tests */
#if !defined(__clang__)
#pragma GCC diagnostic ignored "-Wanalyzer-malloc-leak"
#pragma GCC diagnostic ignored "-Wanalyzer-file-leak"
#endif
typedef struct {
UMockdevTestbed *testbed;
GUsbContext *ctx;
} UMockdevTestbedFixture;
static void
test_fixture_setup(UMockdevTestbedFixture *fixture, UNUSED_DATA)
{
fixture->testbed = umockdev_testbed_new();
g_assert(fixture->testbed != NULL);
}
static void
test_fixture_setup_empty(UMockdevTestbedFixture *fixture, UNUSED_DATA)
{
test_fixture_setup(fixture, NULL);
fixture->ctx = g_usb_context_new(NULL);
}
static void
test_fixture_teardown(UMockdevTestbedFixture *fixture, UNUSED_DATA)
{
/* break context -> device -> context cycle */
if (fixture->ctx)
g_object_run_dispose(G_OBJECT(fixture->ctx));
g_clear_object(&fixture->ctx);
g_clear_object(&fixture->testbed);
/* running the mainloop is needed to ensure everything is cleaned up */
while (g_main_context_iteration(NULL, FALSE)) {
}
}
static void
test_fixture_add_canon(UMockdevTestbedFixture *fixture)
{
/* NOTE: there is no device file, so cannot be opened */
/* NOTE: add_device would not create a file, needed for device emulation */
/* XXX: racy, see https://github.com/martinpitt/umockdev/issues/173 */
umockdev_testbed_add_from_string(
fixture->testbed,
"P: /devices/usb1\n"
"N: bus/usb/001/001\n"
"E: SUBSYSTEM=usb\n"
"E: DRIVER=usb\n"
"E: BUSNUM=001\n"
"E: DEVNUM=001\n"
"E: DEVNAME=/dev/bus/usb/001/001\n"
"E: DEVTYPE=usb_device\n"
"A: bConfigurationValue=1\\n\n"
"A: busnum=1\\n\n"
"A: devnum=1\\n\n"
"A: bConfigurationValue=1\\n\n"
"A: speed=480\\n\n"
/* descriptor from a Canon PowerShot SX200; VID 04a9 PID 31c0 */
"H: descriptors="
"1201000200000040a904c03102000102"
"030109022700010100c0010904000003"
"06010100070581020002000705020200"
"020007058303080009\n",
NULL);
}
static void
test_ctx_enumerate(UMockdevTestbedFixture *fixture, UNUSED_DATA)
{
g_autoptr(GPtrArray) devices = NULL;
test_fixture_add_canon(fixture);
g_usb_context_enumerate(fixture->ctx);
devices = g_usb_context_get_devices(fixture->ctx);
g_assert_cmpint(devices->len, ==, 1);
}
static void
count_hotplug_event_cb(GUsbContext *context, GUsbDevice *device, gpointer user_data)
{
int *counter = user_data;
*counter += 1;
}
static void
test_ctx_hotplug(UMockdevTestbedFixture *fixture, UNUSED_DATA)
{
g_autoptr(GPtrArray) devices = NULL;
gint events = 0;
g_signal_connect(fixture->ctx, "device-added", G_CALLBACK(count_hotplug_event_cb), &events);
g_usb_context_enumerate(fixture->ctx);
devices = g_usb_context_get_devices(fixture->ctx);
g_assert_cmpint(devices->len, ==, 0);
g_assert_cmpint(events, ==, 0);
g_clear_pointer(&devices, g_ptr_array_unref);
test_fixture_add_canon(fixture);
/* ensure the event was processed by helper thread */
g_usleep(G_USEC_PER_SEC / 2);
/* still not returned (and no event fired) */
devices = g_usb_context_get_devices(fixture->ctx);
g_assert_cmpint(devices->len, ==, 0);
g_assert_cmpint(events, ==, 0);
g_clear_pointer(&devices, g_ptr_array_unref);
/* run mainloop, which causes the event to be processed */
while (g_main_context_iteration(NULL, FALSE)) {
}
devices = g_usb_context_get_devices(fixture->ctx);
g_assert_cmpint(events, ==, 1);
g_assert_cmpint(devices->len, ==, 1);
g_clear_pointer(&devices, g_ptr_array_unref);
}
static void
test_ctx_hotplug_dispose(UMockdevTestbedFixture *fixture, UNUSED_DATA)
{
g_autoptr(GPtrArray) devices = NULL;
gint events = 0;
g_signal_connect(fixture->ctx, "device-added", G_CALLBACK(count_hotplug_event_cb), &events);
g_usb_context_enumerate(fixture->ctx);
devices = g_usb_context_get_devices(fixture->ctx);
g_assert_cmpint(devices->len, ==, 0);
g_assert_cmpint(events, ==, 0);
g_clear_pointer(&devices, g_ptr_array_unref);
test_fixture_add_canon(fixture);
/* ensure the event was processed by helper thread */
g_usleep(G_USEC_PER_SEC / 2);
/* still not returned (and no event fired) */
g_usb_context_enumerate(fixture->ctx);
devices = g_usb_context_get_devices(fixture->ctx);
g_assert_cmpint(devices->len, ==, 0);
g_assert_cmpint(events, ==, 0);
g_clear_pointer(&devices, g_ptr_array_unref);
/* idle handler is pending, we dispose our context reference */
g_object_run_dispose(G_OBJECT(fixture->ctx));
/* run mainloop, which causes the event to be processed */
while (g_main_context_iteration(NULL, FALSE)) {
}
/* but no signal is fired */
g_assert_cmpint(events, ==, 0);
g_clear_object(&fixture->ctx);
}
int
main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
g_test_add("/gusb/ctx/enumerate",
UMockdevTestbedFixture,
NULL,
test_fixture_setup_empty,
test_ctx_enumerate,
test_fixture_teardown);
g_test_add("/gusb/ctx/hotplug",
UMockdevTestbedFixture,
NULL,
test_fixture_setup_empty,
test_ctx_hotplug,
test_fixture_teardown);
g_test_add("/gusb/ctx/hotplug-dispose",
UMockdevTestbedFixture,
NULL,
test_fixture_setup_empty,
test_ctx_hotplug_dispose,
test_fixture_teardown);
return g_test_run();
}
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