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/*
* Copyright © Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 or 3 as
* published by the Free Software Foundation.
*
* 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 "mir/fd.h"
#include <gtest/gtest.h>
#include <gmock/gmock.h>
#include <unistd.h>
#include <fcntl.h>
namespace
{
bool fd_is_open(int fd)
{
return fcntl(fd, F_GETFD) != -1;
}
struct Fd : public testing::Test
{
Fd() :
raw_fd(::open("/dev/null", 0))
{
}
~Fd()
{
if (fd_is_open(raw_fd))
::close(raw_fd);
}
int const raw_fd;
};
}
TEST_F(Fd, does_not_close_if_construction_doesnt_intend_to_transfer_ownership)
{
EXPECT_TRUE(fd_is_open(raw_fd));
{
mir::Fd fd(mir::IntOwnedFd{raw_fd});
}
EXPECT_TRUE(fd_is_open(raw_fd));
}
TEST_F(Fd, closes_when_refcount_is_zero)
{
EXPECT_TRUE(fd_is_open(raw_fd));
mir::Fd fd2(-1);
{
mir::Fd fd(raw_fd);
{
mir::Fd fd1(fd);
fd2 = fd1;
}
}
EXPECT_TRUE(fd_is_open(raw_fd));
fd2 = mir::Fd(-1);
EXPECT_FALSE(fd_is_open(raw_fd));
}
TEST_F(Fd, moves_around)
{
EXPECT_TRUE(fd_is_open(raw_fd));
mir::Fd fd0(-1);
fd0 = mir::Fd(raw_fd);
mir::Fd fd1(std::move(fd0));
mir::Fd fd2(fd1);
EXPECT_TRUE(fd_is_open(raw_fd));
fd1 = mir::Fd(-1);
EXPECT_TRUE(fd_is_open(raw_fd));
fd2 = mir::Fd(-1);
EXPECT_FALSE(fd_is_open(raw_fd));
}
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