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/*
* Copyright © 2014 Ran Benita <ran234@gmail.com>
* Copyright © 2023 Pierre Le Marre <dev@wismill.eu>
*
* 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 <stdio.h>
#include <spawn.h>
#include <assert.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/wait.h>
#include "test.h"
#include "xvfb-wrapper.h"
#include "xkbcommon/xkbcommon-x11.h"
int
xvfb_wrapper(int (*test_func)(char* display))
{
int ret = 0;
FILE * display_fd;
char display_fd_string[32];
char *xvfb_argv[] = {
(char *) "Xvfb", (char *) "-displayfd", display_fd_string, NULL
};
char *envp[] = { NULL };
pid_t xvfb_pid = 0;
char display[32] = ":";
size_t length;
/* File descriptor to retrieve the display number */
display_fd = tmpfile();
if (display_fd == NULL){
fprintf(stderr, "Unable to create temporary file.\n");
goto err_display_fd;
}
snprintf(display_fd_string, sizeof(display_fd_string), "%d", fileno(display_fd));
/*
* Xvfb command: let the server find an available display.
*
* Note that it may generate multiple times the following output in stderr:
* _XSERVTransSocketUNIXCreateListener: ...SocketCreateListener() failed
* It is expected: this is the server trying the ports until it finds one
* that works.
*/
ret = posix_spawnp(&xvfb_pid, "Xvfb", NULL, NULL, xvfb_argv, envp);
if (ret != 0) {
ret = SKIP_TEST;
goto err_xvfd;
}
/* Wait for Xvfb fully waking up to accept a connection from a client. */
sleep(1);
/* Retrieve the display number: Xvfd writes the display number as a newline-
* terminated string; copy this number to form a proper display string. */
rewind(display_fd);
length = fread(&display[1], 1, sizeof(display) - 1, display_fd);
if (length <= 0) {
ret = SKIP_TEST;
goto err_xvfd;
} else {
/* Drop the newline character */
display[length] = '\0';
}
/* Run the function requiring a running X server */
ret = test_func(display);
err_xvfd:
if (xvfb_pid > 0)
kill(xvfb_pid, SIGTERM);
fclose(display_fd);
err_display_fd:
return ret;
}
/* All X11_TEST functions are in the test_functions_section ELF section.
* __start and __stop point to the start and end of that section. See the
* __attribute__(section) documentation.
*/
extern const struct test_function __start_test_functions_section, __stop_test_functions_section;
int
x11_tests_run()
{
size_t count = 1; /* For NULL-terminated entry */
for (const struct test_function *t = &__start_test_functions_section;
t < &__stop_test_functions_section;
t++)
count++;
int rc;
for (const struct test_function *t = &__start_test_functions_section;
t < &__stop_test_functions_section;
t++) {
fprintf(stderr, "Running test: %s from %s\n", t->name, t->file);
rc = xvfb_wrapper(t->func);
if (rc != 0) {
break;
}
}
return rc;
}
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