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/*****************************************************************************
*
* X testing environment - Google Test environment feat. dummy x server
*
* Copyright (C) 2011 Canonical Ltd.
*
* 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 3 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will 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, see <http://www.gnu.org/licenses/>.
*
****************************************************************************/
#include "xorg/gtest/environment.h"
#include "xorg/gtest/process.h"
#include "defines.h"
#include <sys/types.h>
#include <unistd.h>
#include <cerrno>
#include <csignal>
#include <cstdlib>
#include <cstring>
#include <iostream>
#include <stdexcept>
#include <X11/Xlib.h>
struct xorg::testing::Environment::Private {
Private()
: path_to_conf(DUMMY_CONF_PATH), path_to_log_file(DEFAULT_XORG_LOGFILE),
path_to_server(DEFAULT_XORG_SERVER), display(DEFAULT_DISPLAY) {
}
std::string path_to_conf;
std::string path_to_log_file;
std::string path_to_server;
int display;
Process process;
};
xorg::testing::Environment::Environment()
: d_(new Private) {
}
xorg::testing::Environment::~Environment() {}
void xorg::testing::Environment::set_log_file(const std::string& path_to_log_file)
{
d_->path_to_log_file = path_to_log_file;
}
const std::string& xorg::testing::Environment::log_file() const
{
return d_->path_to_log_file;
}
void xorg::testing::Environment::set_conf_file(const std::string& path_conf_file)
{
d_->path_to_conf = path_conf_file;
}
const std::string& xorg::testing::Environment::conf_file() const
{
return d_->path_to_conf;
}
void xorg::testing::Environment::set_server(const std::string& path_to_server)
{
d_->path_to_server = path_to_server;
}
const std::string& xorg::testing::Environment::server() const
{
return d_->path_to_server;
}
void xorg::testing::Environment::set_display(int display_num)
{
d_->display = display_num;
}
int xorg::testing::Environment::display() const
{
return d_->display;
}
void xorg::testing::Environment::SetUp() {
static char display_string[6];
snprintf(display_string, 6, ":%d", d_->display);
d_->process.Start(d_->path_to_server, d_->path_to_server.c_str(),
display_string,
"-logfile", d_->path_to_log_file.c_str(),
"-config", d_->path_to_conf.c_str(),
NULL);
Process::SetEnv("DISPLAY", display_string, true);
for (int i = 0; i < 10; ++i) {
Display* display = XOpenDisplay(NULL);
if (display) {
XCloseDisplay(display);
return;
}
int status;
int pid = waitpid(d_->process.Pid(), &status, WNOHANG);
if (pid == d_->process.Pid())
throw std::runtime_error("Dummy X server failed to start, did you run as "
"root?");
else if (pid == 0)
sleep(1); /* Give the dummy X server some time to start */
else if (pid == -1)
throw std::runtime_error("Could not get status of dummy X server "
"process");
else
throw std::runtime_error("Invalid child PID returned by Process::Wait()");
}
throw std::runtime_error("Unable to open connection to dummy X server");
}
void xorg::testing::Environment::TearDown() {
if (!d_->process.Terminate()) {
std::cerr << "Warning: Failed to terminate dummy Xorg server: "
<< std::strerror(errno) << "\n";
if (!d_->process.Kill())
std::cerr << "Warning: Failed to kill dummy Xorg server: "
<< std::strerror(errno) << "\n";
}
}
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