cross_process_sync_test.cpp
Go to the documentation of this file.
/*
* Copyright © 2013 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Thomas Voß <thomas.voss@canonical.com>
*/
#include <core/testing/cross_process_sync.h>
#include <core/testing/fork_and_run.h>
#include <gtest/gtest.h>
TEST(CrossProcessSync, signalling_the_sync_object_results_in_correct_count)
{
core::testing::CrossProcessSync cps;
auto service = [&cps]()
{
for (unsigned int i = 1; i <= 50; i++)
{
EXPECT_NO_THROW(cps.try_signal_ready_for(std::chrono::milliseconds{500}));
}
return ::testing::Test::HasFailure() ?
core::posix::exit::Status::failure : core::posix::exit::Status::success;
};
auto client = [&cps]()
{
std::uint32_t counter = 0;
for (unsigned int i = 1; i <= 50; i++)
{
EXPECT_NO_THROW(counter = cps.wait_for_signal_ready_for(std::chrono::milliseconds{500}));
EXPECT_EQ(i, counter);
}
return ::testing::Test::HasFailure() ?
core::posix::exit::Status::failure : core::posix::exit::Status::success;
};
EXPECT_EQ(core::testing::ForkAndRunResult::empty, core::testing::fork_and_run(service, client));
}
TEST(CrossProcessSync, timed_out_wait_on_sync_object_throws_correct_exception)
{
core::testing::CrossProcessSync cps;
EXPECT_THROW(cps.wait_for_signal_ready_for(std::chrono::milliseconds{1}),
core::testing::CrossProcessSync::Error::Timeout);
}
core::testing::CrossProcessSync
A cross-process synchronization primitive that supports simple wait-condition-like scenarios.
Definition: cross_process_sync.h:37
core::testing::CrossProcessSync::try_signal_ready_for
void try_signal_ready_for(const std::chrono::milliseconds &duration)
Try to signal the other side that we are ready for at most duration milliseconds.
Definition: cross_process_sync.cpp:62
core::testing::CrossProcessSync::wait_for_signal_ready_for
std::uint32_t wait_for_signal_ready_for(const std::chrono::milliseconds &duration)
Wait for the other sides to signal readiness for at most duration milliseconds.
Definition: cross_process_sync.cpp:78
cross_process_sync.h
TEST
TEST(CrossProcessSync, signalling_the_sync_object_results_in_correct_count)
Definition: cross_process_sync_test.cpp:25
fork_and_run.h
core::posix::exit::Status::success
@ success
core::posix::exit::Status::failure
@ failure
core::testing::ForkAndRunResult::empty
@ empty
Special value indicating no bit being set.
core::testing::fork_and_run
CORE_POSIX_DLL_PUBLIC ForkAndRunResult fork_and_run(const std::function< core::posix::exit::Status()> &service, const std::function< core::posix::exit::Status()> &client)
Forks two processes for both the service and the client.
Definition: fork_and_run.cpp:41
core::testing::CrossProcessSync::Error::Timeout
Thrown if any of the *_for functions times out.
Definition: cross_process_sync.h:48