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litest.c
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litest.c
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/*
* Copyright © 2013 Red Hat, Inc.
* Copyright © 2013 Marcin Slusarz <marcin.slusarz@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include "config.h"
#include <check.h>
#include <dirent.h>
#include <errno.h>
#include <libgen.h>
#include <fcntl.h>
#include <fnmatch.h>
#include <getopt.h>
#include <poll.h>
#include <signal.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <time.h>
#include <unistd.h>
#include "linux/input.h"
#include <sys/ptrace.h>
#include <sys/resource.h>
#include <sys/sendfile.h>
#include <sys/timerfd.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <libudev.h>
#if HAVE_LIBSYSTEMD
#include <systemd/sd-bus.h>
#endif
#include "litest.h"
#include "litest-int.h"
#include "libinput-util.h"
#include "quirks.h"
#include <linux/kd.h>
#define UDEV_RULES_D "/run/udev/rules.d"
#define UDEV_RULE_PREFIX "99-litest-"
#define UDEV_HWDB_D "/etc/udev/hwdb.d"
#define UDEV_MODEL_QUIRKS_RULE_FILE UDEV_RULES_D \
"/91-litest-model-quirks-REMOVEME-XXXXXX.rules"
#define UDEV_MODEL_QUIRKS_HWDB_FILE UDEV_HWDB_D \
"/91-litest-model-quirks-REMOVEME-XXXXXX.hwdb"
#define UDEV_TEST_DEVICE_RULE_FILE UDEV_RULES_D \
"/91-litest-test-device-REMOVEME-XXXXXXX.rules"
#define UDEV_DEVICE_GROUPS_FILE UDEV_RULES_D \
"/80-libinput-device-groups-litest-XXXXXX.rules"
static int jobs = 8;
static int in_debugger = -1;
static int verbose = 0;
const char *filter_test = NULL;
const char *filter_device = NULL;
const char *filter_group = NULL;
static struct quirks_context *quirks_context;
struct created_file {
struct list link;
char *path;
};
struct list created_files_list; /* list of all files to remove at the end of
the test run */
static void litest_init_udev_rules(struct list *created_files_list);
static void litest_remove_udev_rules(struct list *created_files_list);
static char *litest_install_quirks(struct list *created_files_list);
/* defined for the litest selftest */
#ifndef LITEST_DISABLE_BACKTRACE_LOGGING
#define litest_log(...) fprintf(stderr, __VA_ARGS__)
#define litest_vlog(format_, args_) vfprintf(stderr, format_, args_)
#else
#define litest_log(...) { /* __VA_ARGS__ */ }
#define litest_vlog(...) { /* __VA_ARGS__ */ }
#endif
#if HAVE_LIBUNWIND
#define UNW_LOCAL_ONLY
#include <libunwind.h>
#include <dlfcn.h>
static char cwd[PATH_MAX];
static bool
litest_backtrace_get_lineno(const char *executable,
unw_word_t addr,
char *file_return,
int *line_return)
{
#if HAVE_ADDR2LINE
FILE* f;
char buffer[PATH_MAX];
char *s;
unsigned int i;
if (!cwd[0]) {
if (getcwd(cwd, sizeof(cwd)) == NULL)
cwd[0] = 0; /* contents otherwise undefined. */
}
sprintf (buffer,
ADDR2LINE " -C -e %s -i %lx",
executable,
(unsigned long) addr);
f = popen(buffer, "r");
if (f == NULL) {
litest_log("Failed to execute: %s\n", buffer);
return false;
}
buffer[0] = '?';
if (fgets(buffer, sizeof(buffer), f) == NULL) {
pclose(f);
return false;
}
pclose(f);
if (buffer[0] == '?')
return false;
s = strrchr(buffer, ':');
if (!s)
return false;
*s = '\0';
s++;
sscanf(s, "%d", line_return);
/* now strip cwd from buffer */
s = buffer;
i = 0;
while(i < strlen(cwd) && *s != '\0' && cwd[i] == *s) {
*s = '\0';
s++;
i++;
}
if (i > 0)
*(--s) = '.';
strcpy(file_return, s);
return true;
#else /* HAVE_ADDR2LINE */
return false;
#endif
}
static void
litest_backtrace(void)
{
unw_cursor_t cursor;
unw_context_t context;
unw_word_t off;
unw_proc_info_t pip;
int ret;
char procname[256];
Dl_info dlinfo;
/* filename and i are unused ifdef LITEST_SHUTUP */
pip.unwind_info = NULL;
ret = unw_getcontext(&context);
if (ret) {
litest_log("unw_getcontext failed: %s [%d]\n",
unw_strerror(ret),
ret);
return;
}
ret = unw_init_local(&cursor, &context);
if (ret) {
litest_log("unw_init_local failed: %s [%d]\n",
unw_strerror(ret),
ret);
return;
}
litest_log("\nBacktrace:\n");
ret = unw_step(&cursor);
while (ret > 0) {
char file[PATH_MAX];
int line;
bool have_lineno = false;
const char *filename = "?";
int i = 0;
ret = unw_get_proc_info(&cursor, &pip);
if (ret) {
litest_log("unw_get_proc_info failed: %s [%d]\n",
unw_strerror(ret),
ret);
break;
}
ret = unw_get_proc_name(&cursor, procname, 256, &off);
if (ret && ret != -UNW_ENOMEM) {
if (ret != -UNW_EUNSPEC)
litest_log("unw_get_proc_name failed: %s [%d]\n",
unw_strerror(ret),
ret);
procname[0] = '?';
procname[1] = 0;
}
if (dladdr((void *)(pip.start_ip + off), &dlinfo) &&
dlinfo.dli_fname &&
*dlinfo.dli_fname) {
filename = dlinfo.dli_fname;
have_lineno = litest_backtrace_get_lineno(filename,
(pip.start_ip + off),
file,
&line);
}
if (have_lineno) {
litest_log("%d: %s() (%s:%d)\n",
i,
procname,
file,
line);
} else {
litest_log("%d: %s (%s%s+%#x) [%p]\n",
i,
filename,
procname,
ret == -UNW_ENOMEM ? "..." : "",
(int)off,
(void *)(pip.start_ip + off));
}
i++;
ret = unw_step(&cursor);
if (ret < 0)
litest_log("unw_step failed: %s [%d]\n",
unw_strerror(ret),
ret);
}
litest_log("\n");
}
#else /* HAVE_LIBUNWIND */
static inline void
litest_backtrace(void)
{
/* thou shall install libunwind */
}
#endif
LIBINPUT_ATTRIBUTE_PRINTF(5, 6)
__attribute__((noreturn))
void
litest_fail_condition(const char *file,
int line,
const char *func,
const char *condition,
const char *message,
...)
{
litest_log("FAILED: %s\n", condition);
if (message) {
va_list args;
va_start(args, message);
litest_vlog(message, args);
va_end(args);
}
litest_log("in %s() (%s:%d)\n", func, file, line);
litest_backtrace();
abort();
}
__attribute__((noreturn))
void
litest_fail_comparison_int(const char *file,
int line,
const char *func,
const char *operator,
int a,
int b,
const char *astr,
const char *bstr)
{
litest_log("FAILED COMPARISON: %s %s %s\n", astr, operator, bstr);
litest_log("Resolved to: %d %s %d\n", a, operator, b);
litest_log("in %s() (%s:%d)\n", func, file, line);
litest_backtrace();
abort();
}
__attribute__((noreturn))
void
litest_fail_comparison_ptr(const char *file,
int line,
const char *func,
const char *comparison)
{
litest_log("FAILED COMPARISON: %s\n", comparison);
litest_log("in %s() (%s:%d)\n", func, file, line);
litest_backtrace();
abort();
}
struct test {
struct list node;
char *name;
char *devname;
void *func;
void *setup;
void *teardown;
struct range range;
};
struct suite {
struct list node;
struct list tests;
char *name;
};
static struct litest_device *current_device;
struct litest_device *litest_current_device(void)
{
return current_device;
}
void litest_set_current_device(struct litest_device *device)
{
current_device = device;
}
void litest_generic_device_teardown(void)
{
litest_delete_device(current_device);
current_device = NULL;
}
struct litest_test_device** devices;
static struct list all_tests;
static inline void
litest_system(const char *command)
{
int ret;
ret = system(command);
if (ret == -1) {
litest_abort_msg("Failed to execute: %s", command);
} else if (WIFEXITED(ret)) {
if (WEXITSTATUS(ret))
litest_abort_msg("'%s' failed with %d",
command,
WEXITSTATUS(ret));
} else if (WIFSIGNALED(ret)) {
litest_abort_msg("'%s' terminated with signal %d",
command,
WTERMSIG(ret));
}
}
static void
litest_reload_udev_rules(void)
{
litest_system("udevadm control --reload-rules");
litest_system("udevadm hwdb --update");
}
static void
litest_add_tcase_for_device(struct suite *suite,
const char *funcname,
void *func,
const struct litest_test_device *dev,
const struct range *range)
{
struct test *t;
t = zalloc(sizeof(*t));
t->name = safe_strdup(funcname);
t->devname = safe_strdup(dev->shortname);
t->func = func;
t->setup = dev->setup;
t->teardown = dev->teardown ?
dev->teardown : litest_generic_device_teardown;
if (range)
t->range = *range;
list_insert(&suite->tests, &t->node);
}
static void
litest_add_tcase_no_device(struct suite *suite,
void *func,
const char *funcname,
const struct range *range)
{
struct test *t;
const char *test_name = funcname;
if (filter_device &&
fnmatch(filter_device, test_name, 0) != 0)
return;
t = zalloc(sizeof(*t));
t->name = safe_strdup(test_name);
t->devname = safe_strdup("no device");
t->func = func;
if (range)
t->range = *range;
t->setup = NULL;
t->teardown = NULL;
list_insert(&suite->tests, &t->node);
}
static struct suite *
get_suite(const char *name)
{
struct suite *s;
list_for_each(s, &all_tests, node) {
if (streq(s->name, name))
return s;
}
s = zalloc(sizeof(*s));
s->name = safe_strdup(name);
list_init(&s->tests);
list_insert(&all_tests, &s->node);
return s;
}
static void
litest_add_tcase(const char *suite_name,
const char *funcname,
void *func,
enum litest_device_feature required,
enum litest_device_feature excluded,
const struct range *range)
{
struct litest_test_device **dev = devices;
struct suite *suite;
bool added = false;
litest_assert(required >= LITEST_DISABLE_DEVICE);
litest_assert(excluded >= LITEST_DISABLE_DEVICE);
if (filter_test &&
fnmatch(filter_test, funcname, 0) != 0)
return;
if (filter_group &&
fnmatch(filter_group, suite_name, 0) != 0)
return;
suite = get_suite(suite_name);
if (required == LITEST_DISABLE_DEVICE &&
excluded == LITEST_DISABLE_DEVICE) {
litest_add_tcase_no_device(suite, func, funcname, range);
added = true;
} else if (required != LITEST_ANY || excluded != LITEST_ANY) {
for (; *dev; dev++) {
if ((*dev)->features & LITEST_IGNORED)
continue;
if (filter_device &&
fnmatch(filter_device, (*dev)->shortname, 0) != 0)
continue;
if (((*dev)->features & required) != required ||
((*dev)->features & excluded) != 0)
continue;
litest_add_tcase_for_device(suite,
funcname,
func,
*dev,
range);
added = true;
}
} else {
for (; *dev; dev++) {
if ((*dev)->features & LITEST_IGNORED)
continue;
if (filter_device &&
fnmatch(filter_device, (*dev)->shortname, 0) != 0)
continue;
litest_add_tcase_for_device(suite,
funcname,
func,
*dev,
range);
added = true;
}
}
if (!added &&
filter_test == NULL &&
filter_device == NULL &&
filter_group == NULL) {
fprintf(stderr, "Test '%s' does not match any devices. Aborting.\n", funcname);
abort();
}
}
void
_litest_add_no_device(const char *name, const char *funcname, void *func)
{
_litest_add(name, funcname, func, LITEST_DISABLE_DEVICE, LITEST_DISABLE_DEVICE);
}
void
_litest_add_ranged_no_device(const char *name,
const char *funcname,
void *func,
const struct range *range)
{
_litest_add_ranged(name,
funcname,
func,
LITEST_DISABLE_DEVICE,
LITEST_DISABLE_DEVICE,
range);
}
void
_litest_add(const char *name,
const char *funcname,
void *func,
enum litest_device_feature required,
enum litest_device_feature excluded)
{
_litest_add_ranged(name,
funcname,
func,
required,
excluded,
NULL);
}
void
_litest_add_ranged(const char *name,
const char *funcname,
void *func,
enum litest_device_feature required,
enum litest_device_feature excluded,
const struct range *range)
{
litest_add_tcase(name, funcname, func, required, excluded, range);
}
void
_litest_add_for_device(const char *name,
const char *funcname,
void *func,
enum litest_device_type type)
{
_litest_add_ranged_for_device(name, funcname, func, type, NULL);
}
void
_litest_add_ranged_for_device(const char *name,
const char *funcname,
void *func,
enum litest_device_type type,
const struct range *range)
{
struct suite *s;
struct litest_test_device **dev = devices;
bool device_filtered = false;
litest_assert(type < LITEST_NO_DEVICE);
if (filter_test &&
fnmatch(filter_test, funcname, 0) != 0)
return;
if (filter_group &&
fnmatch(filter_group, name, 0) != 0)
return;
s = get_suite(name);
for (; *dev; dev++) {
if (filter_device &&
fnmatch(filter_device, (*dev)->shortname, 0) != 0) {
device_filtered = true;
continue;
}
if ((*dev)->type == type) {
litest_add_tcase_for_device(s,
funcname,
func,
*dev,
range);
return;
}
}
/* only abort if no filter was set, that's a bug */
if (!device_filtered)
litest_abort_msg("Invalid test device type\n");
}
LIBINPUT_ATTRIBUTE_PRINTF(3, 0)
static void
litest_log_handler(struct libinput *libinput,
enum libinput_log_priority pri,
const char *format,
va_list args)
{
static int is_tty = -1;
const char *priority = NULL;
const char *color;
if (is_tty == -1)
is_tty = isatty(STDERR_FILENO);
switch(pri) {
case LIBINPUT_LOG_PRIORITY_INFO:
priority = "info ";
color = ANSI_HIGHLIGHT;
break;
case LIBINPUT_LOG_PRIORITY_ERROR:
priority = "error";
color = ANSI_BRIGHT_RED;
break;
case LIBINPUT_LOG_PRIORITY_DEBUG:
priority = "debug";
color = ANSI_NORMAL;
break;
default:
abort();
}
if (!is_tty)
color = "";
else if (strstr(format, "tap:"))
color = ANSI_BLUE;
else if (strstr(format, "thumb state:"))
color = ANSI_YELLOW;
else if (strstr(format, "button state:"))
color = ANSI_MAGENTA;
else if (strstr(format, "touch-size:") ||
strstr(format, "pressure:"))
color = ANSI_GREEN;
else if (strstr(format, "palm:") ||
strstr(format, "thumb:"))
color = ANSI_CYAN;
else if (strstr(format, "edge-scroll:"))
color = ANSI_BRIGHT_GREEN;
fprintf(stderr, "%slitest %s ", color, priority);
vfprintf(stderr, format, args);
if (is_tty)
fprintf(stderr, ANSI_NORMAL);
if (strstr(format, "client bug: ") ||
strstr(format, "libinput bug: ")) {
/* valgrind is too slow and some of our offsets are too
* short, don't abort if during a valgrind run we get a
* negative offset */
if (!getenv("USING_VALGRIND") ||
!strstr(format, "offset negative"))
litest_abort_msg("libinput bug triggered, aborting.\n");
}
}
static char *
litest_init_device_udev_rules(struct litest_test_device *dev);
static void
litest_init_all_device_udev_rules(struct list *created_files)
{
struct litest_test_device **dev = devices;
while (*dev) {
char *udev_file;
udev_file = litest_init_device_udev_rules(*dev);
if (udev_file) {
struct created_file *file = zalloc(sizeof(*file));
file->path = udev_file;
list_insert(created_files, &file->link);
}
dev++;
}
}
static int
open_restricted(const char *path, int flags, void *userdata)
{
int fd = open(path, flags);
return fd < 0 ? -errno : fd;
}
static void
close_restricted(int fd, void *userdata)
{
close(fd);
}
struct libinput_interface interface = {
.open_restricted = open_restricted,
.close_restricted = close_restricted,
};
static void
litest_signal(int sig)
{
struct created_file *f, *tmp;
list_for_each_safe(f, tmp, &created_files_list, link) {
list_remove(&f->link);
unlink(f->path);
rmdir(f->path);
/* in the sighandler, we can't free */
}
if (fork() == 0) {
/* child, we can run system() */
litest_reload_udev_rules();
exit(0);
}
exit(1);
}
static inline void
litest_setup_sighandler(int sig)
{
struct sigaction act, oact;
int rc;
sigemptyset(&act.sa_mask);
sigaddset(&act.sa_mask, sig);
act.sa_flags = 0;
act.sa_handler = litest_signal;
rc = sigaction(sig, &act, &oact);
litest_assert_int_ne(rc, -1);
}
static void
litest_free_test_list(struct list *tests)
{
struct suite *s, *snext;
list_for_each_safe(s, snext, tests, node) {
struct test *t, *tnext;
list_for_each_safe(t, tnext, &s->tests, node) {
free(t->name);
free(t->devname);
list_remove(&t->node);
free(t);
}
list_remove(&s->node);
free(s->name);
free(s);
}
}
LIBINPUT_ATTRIBUTE_PRINTF(3, 0)
static inline void
quirk_log_handler(struct libinput *unused,
enum libinput_log_priority priority,
const char *format,
va_list args)
{
if (priority < LIBINPUT_LOG_PRIORITY_ERROR)
return;
vfprintf(stderr, format, args);
}
static int
litest_run_suite(struct list *tests, int which, int max, int error_fd)
{
int failed = 0;
SRunner *sr = NULL;
struct suite *s;
struct test *t;
int count = -1;
struct name {
struct list node;
char *name;
};
struct name *n, *tmp;
struct list testnames;
quirks_context = quirks_init_subsystem(getenv("LIBINPUT_DATA_DIR"),
NULL,
quirk_log_handler,
NULL,
QLOG_LIBINPUT_LOGGING);
/* Check just takes the suite/test name pointers but doesn't strdup
* them - we have to keep them around */
list_init(&testnames);
/* For each test, create one test suite with one test case, then
add it to the test runner. The only benefit suites give us in
check is that we can filter them, but our test runner has a
--filter-group anyway. */
list_for_each(s, tests, node) {
list_for_each(t, &s->tests, node) {
Suite *suite;
TCase *tc;
char *sname, *tname;
count = (count + 1) % max;
if (max != 1 && (count % max) != which)
continue;
xasprintf(&sname,
"%s:%s:%s",
s->name,
t->name,
t->devname);
litest_assert(sname != NULL);
n = zalloc(sizeof(*n));
n->name = sname;
list_insert(&testnames, &n->node);
xasprintf(&tname,
"%s:%s",
t->name,
t->devname);
litest_assert(tname != NULL);
n = zalloc(sizeof(*n));
n->name = tname;
list_insert(&testnames, &n->node);
tc = tcase_create(tname);
tcase_add_checked_fixture(tc,
t->setup,
t->teardown);
if (t->range.upper != t->range.lower)
tcase_add_loop_test(tc,
t->func,
t->range.lower,
t->range.upper);
else
tcase_add_test(tc, t->func);
suite = suite_create(sname);
suite_add_tcase(suite, tc);
if (!sr)
sr = srunner_create(suite);
else
srunner_add_suite(sr, suite);
}
}
if (!sr)
goto out;
srunner_run_all(sr, CK_ENV);
failed = srunner_ntests_failed(sr);
if (failed) {
TestResult **trs;
trs = srunner_failures(sr);
for (int i = 0; i < failed; i++) {
dprintf(error_fd,
":: Failure: %s:%d:%s\n",
tr_lfile(trs[i]),
tr_lno(trs[i]),
tr_tcname(trs[i]));
}
free(trs);
}
srunner_free(sr);
out:
list_for_each_safe(n, tmp, &testnames, node) {
free(n->name);
free(n);
}
quirks_context_unref(quirks_context);
return failed;
}
static int
litest_fork_subtests(struct list *tests, int max_forks)
{
int failed = 0;
int status;
pid_t pid;
int f;
int pipes[max_forks];
for (f = 0; f < max_forks; f++) {
int rc;
int pipefd[2];
rc = pipe2(pipefd, O_NONBLOCK|O_NONBLOCK);
assert(rc != -1);
pid = fork();
if (pid == 0) {
close(pipefd[0]);
failed = litest_run_suite(tests,
f,
max_forks,
pipefd[1]);
litest_free_test_list(&all_tests);
exit(failed);
/* child always exits here */
} else {
pipes[f] = pipefd[0];
close(pipefd[1]);
}
}
/* parent process only */
while (wait(&status) != -1 && errno != ECHILD) {
if (WEXITSTATUS(status) != 0)
failed = 1;
}
for (f = 0; f < max_forks; f++) {
char buf[1024] = {0};
int rc;
while ((rc = read(pipes[f], buf, sizeof(buf) - 1)) > 0) {
buf[rc] = '\0';
fprintf(stderr, "%s", buf);
}
close(pipes[f]);
}
return failed;
}
static inline int
inhibit(void)
{
int lock_fd = -1;
#if HAVE_LIBSYSTEMD
sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus_message *m = NULL;
sd_bus *bus = NULL;
int rc;
rc = sd_bus_open_system(&bus);
if (rc != 0) {
fprintf(stderr, "Warning: inhibit failed: %s\n", strerror(-rc));
goto out;
}
rc = sd_bus_call_method(bus,
"org.freedesktop.login1",
"/org/freedesktop/login1",
"org.freedesktop.login1.Manager",
"Inhibit",
&error,
&m,
"ssss",
"handle-lid-switch:handle-power-key:handle-suspend-key:handle-hibernate-key",
"libinput test-suite runner",
"testing in progress",
"block");
if (rc < 0) {