source/signal: Implement
diff --git a/test/source/signal.cpp b/test/source/signal.cpp
new file mode 100644
index 0000000..c99aa6b
--- /dev/null
+++ b/test/source/signal.cpp
@@ -0,0 +1,160 @@
+#include <cerrno>
+#include <functional>
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+#include <memory>
+#include <sdeventplus/event.hpp>
+#include <sdeventplus/exception.hpp>
+#include <sdeventplus/source/signal.hpp>
+#include <sdeventplus/test/sdevent.hpp>
+#include <signal.h>
+#include <systemd/sd-event.h>
+#include <type_traits>
+#include <utility>
+
+namespace sdeventplus
+{
+namespace source
+{
+namespace
+{
+
+using testing::DoAll;
+using testing::Return;
+using testing::SaveArg;
+using testing::SetArgPointee;
+
+using UniqueEvent = std::unique_ptr<Event, std::function<void(Event*)>>;
+
+class SignalTest : public testing::Test
+{
+ protected:
+ testing::StrictMock<test::SdEventMock> mock;
+ sd_event_source* const expected_source =
+ reinterpret_cast<sd_event_source*>(1234);
+ sd_event* const expected_event = reinterpret_cast<sd_event*>(2345);
+ UniqueEvent event = make_event(expected_event);
+
+ UniqueEvent make_event(sd_event* event)
+ {
+ auto deleter = [this, event](Event* e) {
+ EXPECT_CALL(this->mock, sd_event_unref(event))
+ .WillOnce(Return(nullptr));
+ delete e;
+ };
+ return UniqueEvent(new Event(event, std::false_type(), &mock), deleter);
+ }
+
+ void expect_destruct()
+ {
+ {
+ testing::InSequence sequence;
+ EXPECT_CALL(mock, sd_event_source_set_enabled(expected_source,
+ SD_EVENT_OFF))
+ .WillOnce(Return(0));
+ EXPECT_CALL(mock, sd_event_source_unref(expected_source))
+ .WillOnce(Return(nullptr));
+ }
+ EXPECT_CALL(mock, sd_event_unref(expected_event))
+ .WillOnce(Return(nullptr));
+ }
+};
+
+TEST_F(SignalTest, ConstructSuccess)
+{
+ const int sig = SIGALRM;
+
+ EXPECT_CALL(mock, sd_event_ref(expected_event))
+ .WillOnce(Return(expected_event));
+ sd_event_signal_handler_t handler;
+ EXPECT_CALL(mock, sd_event_add_signal(expected_event, testing::_, sig,
+ testing::_, nullptr))
+ .WillOnce(DoAll(SetArgPointee<1>(expected_source), SaveArg<3>(&handler),
+ Return(0)));
+ void* userdata;
+ EXPECT_CALL(mock, sd_event_source_set_userdata(expected_source, testing::_))
+ .WillOnce(DoAll(SaveArg<1>(&userdata), Return(nullptr)));
+ int completions = 0;
+ const struct signalfd_siginfo* return_si;
+ Signal::Callback callback = [&](Signal&,
+ const struct signalfd_siginfo* si) {
+ return_si = si;
+ completions++;
+ };
+ Signal signal(*event, sig, std::move(callback));
+ EXPECT_FALSE(callback);
+ EXPECT_EQ(&signal, userdata);
+ EXPECT_EQ(0, completions);
+
+ const struct signalfd_siginfo* expected_si =
+ reinterpret_cast<struct signalfd_siginfo*>(865);
+ EXPECT_EQ(0, handler(nullptr, expected_si, &signal));
+ EXPECT_EQ(1, completions);
+ EXPECT_EQ(expected_si, return_si);
+
+ expect_destruct();
+}
+
+TEST_F(SignalTest, ConstructError)
+{
+ const int sig = SIGALRM;
+
+ EXPECT_CALL(mock, sd_event_add_signal(expected_event, testing::_, sig,
+ testing::_, nullptr))
+ .WillOnce(Return(-EINVAL));
+ int completions = 0;
+ Signal::Callback callback = [&completions](Signal&,
+ const struct signalfd_siginfo*) {
+ completions++;
+ };
+ EXPECT_THROW(Signal(*event, sig, std::move(callback)), SdEventError);
+ EXPECT_TRUE(callback);
+ EXPECT_EQ(0, completions);
+}
+
+class SignalMethodTest : public SignalTest
+{
+ protected:
+ std::unique_ptr<Signal> signal;
+
+ void SetUp()
+ {
+ const int sig = SIGINT;
+
+ EXPECT_CALL(mock, sd_event_ref(expected_event))
+ .WillOnce(Return(expected_event));
+ EXPECT_CALL(mock, sd_event_add_signal(expected_event, testing::_, sig,
+ testing::_, nullptr))
+ .WillOnce(DoAll(SetArgPointee<1>(expected_source), Return(0)));
+ EXPECT_CALL(mock,
+ sd_event_source_set_userdata(expected_source, testing::_))
+ .WillOnce(Return(nullptr));
+ signal = std::make_unique<Signal>(
+ *event, sig, [](Signal&, const struct signalfd_siginfo*) {});
+ }
+
+ void TearDown()
+ {
+ expect_destruct();
+ signal.reset();
+ }
+};
+
+TEST_F(SignalMethodTest, GetSignalSuccess)
+{
+ const int sig = SIGTERM;
+ EXPECT_CALL(mock, sd_event_source_get_signal(expected_source))
+ .WillOnce(Return(sig));
+ EXPECT_EQ(sig, signal->get_signal());
+}
+
+TEST_F(SignalMethodTest, GetSignalError)
+{
+ EXPECT_CALL(mock, sd_event_source_get_signal(expected_source))
+ .WillOnce(Return(-EINVAL));
+ EXPECT_THROW(signal->get_signal(), SdEventError);
+}
+
+} // namespace
+} // namespace source
+} // namespace sdeventplus