[LTP] [PATCH v2 3/7] Refactor input03 test
Andrea Cervesato
andrea.cervesato@suse.de
Mon Dec 2 11:12:47 CET 2024
From: Andrea Cervesato <andrea.cervesato@suse.com>
Reviewed-by: Li Wang <liwang@redhat.com>
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
---
testcases/kernel/input/Makefile | 4 +-
testcases/kernel/input/input03.c | 176 ++++++++++++++++-----------------------
2 files changed, 73 insertions(+), 107 deletions(-)
diff --git a/testcases/kernel/input/Makefile b/testcases/kernel/input/Makefile
index 5bc729802d1e302d7d52d71be0b6b22a20efb852..8c302dbc8c75cf4fd42bc162b4bb8a9882237164 100644
--- a/testcases/kernel/input/Makefile
+++ b/testcases/kernel/input/Makefile
@@ -8,8 +8,8 @@ LTPLIBS = uinput
include $(top_srcdir)/include/mk/testcases.mk
FILTER_OUT_MAKE_TARGETS := input_helper
-input01 input02: LDLIBS += -lltpuinput
+input01 input02 input03: LDLIBS += -lltpuinput
include $(top_srcdir)/include/mk/generic_leaf_target.mk
-input03 input04 input05 input06: %: input_helper.o
+input04 input05 input06: %: input_helper.o
diff --git a/testcases/kernel/input/input03.c b/testcases/kernel/input/input03.c
index 6cd753d0b1bf98ce671dfa739cde817b4c52c547..4a3eb464ee0322b134f44158a08dbb4ed000216f 100644
--- a/testcases/kernel/input/input03.c
+++ b/testcases/kernel/input/input03.c
@@ -1,145 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2015 Cedric Hnyda <chnyda@suse.com>
- *
- * This program 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 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it would 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 this program; if not, write the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * Copyright (C) 2024 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
*/
- /*
- * Create a virtual device (mouse), send events to /dev/uinput
- * and check that the events are well received in /dev/input/mice
- */
+/*\
+ * [Description]
+ *
+ * Verify that /dev/input/mice receive events sent from a virtual device,
+ * that in our case is a mouse. The events are a sequence of mouse right click.
+ */
-#include <linux/input.h>
#include <linux/uinput.h>
-#include "test.h"
-#include "safe_macros.h"
-#include "lapi/fcntl.h"
-#include "input_helper.h"
+#include "input_common.h"
-#define NB_TEST 10
+#define NUM_EVENTS 10
#define PS2_RIGHT_BTN 0x02
+#define MOUSE_DEV "/dev/input/mice"
-static void setup(void);
-static void send_events(void);
-static int check_events(void);
-static void cleanup(void);
+static int fd_send = -1;
+static int fd_recv = -1;
-static int fd, fd2;
-
-char *TCID = "input03";
-
-int main(int ac, char **av)
+static void recv_data(void)
{
- int lc;
- int pid;
-
- tst_parse_opts(ac, av, NULL, NULL);
-
- setup();
-
- for (lc = 0; TEST_LOOPING(lc); ++lc) {
- pid = tst_fork();
-
- switch (pid) {
- case 0:
- send_events();
- exit(0);
- case -1:
- tst_brkm(TBROK | TERRNO, cleanup, "fork() failed");
- default:
- if (check_events())
- tst_resm(TFAIL, "Wrong data received");
- else
- tst_resm(TPASS,
- "Data received in /dev/input/mice");
- break;
- }
+ tst_res(TINFO, "Reading events back");
- SAFE_WAITPID(NULL, pid, NULL, 0);
- }
+ char buf[30];
+ int events = 0;
+ int pressed = 0;
+ int num_bytes = 0;
- cleanup();
- tst_exit();
-}
+ TST_CHECKPOINT_WAKE(0);
-static void setup(void)
-{
- tst_require_root();
+ while (events < NUM_EVENTS) {
+ memset(buf, 0, sizeof(buf));
- fd = open_uinput();
+ num_bytes = SAFE_READ(0, fd_recv, buf, sizeof(buf));
- setup_mouse_events(fd);
- SAFE_IOCTL(NULL, fd, UI_SET_EVBIT, EV_KEY);
- SAFE_IOCTL(NULL, fd, UI_SET_KEYBIT, BTN_RIGHT);
+ for (int i = 0; i < num_bytes / 3; i++) {
+ if (buf[3*i] & PS2_RIGHT_BTN)
+ pressed = 1;
- create_device(fd);
+ if (pressed == 1 && !(buf[3*i] & PS2_RIGHT_BTN)) {
+ pressed = 0;
+ events++;
+ }
+ }
+ }
- fd2 = SAFE_OPEN(NULL, "/dev/input/mice", O_RDONLY);
+ TST_EXP_EQ_LI(events, NUM_EVENTS);
}
-static void send_events(void)
+static void send_mouse_events(void)
{
- int nb;
+ tst_res(TINFO, "Sending right click");
+
+ TST_CHECKPOINT_WAIT(0);
- for (nb = 0; nb < NB_TEST; ++nb) {
- send_event(fd, EV_KEY, BTN_RIGHT, 1);
- send_event(fd, EV_SYN, 0, 0);
+ for (int i = 0; i < NUM_EVENTS; i++) {
+ send_event(fd_send, EV_KEY, BTN_RIGHT, 1);
+ send_event(fd_send, EV_SYN, 0, 0);
usleep(1000);
- send_event(fd, EV_KEY, BTN_RIGHT, 0);
- send_event(fd, EV_SYN, 0, 0);
+
+ send_event(fd_send, EV_KEY, BTN_RIGHT, 0);
+ send_event(fd_send, EV_SYN, 0, 0);
usleep(1000);
}
}
-static int check_events(void)
+static void run(void)
{
- int nb, rd, i, pressed = 0;
- char buf[30];
-
- nb = 0;
-
- while (nb < NB_TEST) {
- rd = read(fd2, buf, sizeof(buf));
+ if (!SAFE_FORK()) {
+ send_mouse_events();
+ exit(0);
+ }
- if (rd < 0)
- tst_brkm(TBROK | TERRNO, NULL, "read() failed");
+ recv_data();
+}
- if (rd % 3) {
- tst_resm(TINFO, "read() returned %i", rd);
- return 1;
- }
+static void setup(void)
+{
+ fd_send = open_uinput();
- for (i = 0; i < rd / 3; i++) {
- if (buf[3*i] & PS2_RIGHT_BTN)
- pressed = 1;
+ setup_mouse_events(fd_send);
+ SAFE_IOCTL(fd_send, UI_SET_EVBIT, EV_KEY);
+ SAFE_IOCTL(fd_send, UI_SET_KEYBIT, BTN_RIGHT);
- if (pressed == 1 && !(buf[3*i] & PS2_RIGHT_BTN)) {
- pressed = 0;
- nb++;
- }
- }
- }
+ create_input_device(fd_send);
- return nb != NB_TEST;
+ fd_recv = SAFE_OPEN(MOUSE_DEV, O_RDONLY);
}
static void cleanup(void)
{
- if (fd2 > 0 && close(fd2))
- tst_resm(TWARN, "close(fd2) failed");
+ if (fd_send != -1)
+ destroy_input_device(fd_send);
- destroy_device(fd);
+ if (fd_recv != -1)
+ SAFE_CLOSE(fd_recv);
}
+
+static struct tst_test test = {
+ .test_all = run,
+ .setup = setup,
+ .cleanup = cleanup,
+ .forks_child = 1,
+ .needs_root = 1,
+ .needs_checkpoints = 1,
+};
--
2.43.0
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