xref: /openbmc/sdeventplus/test/source/io.cpp (revision eaf815f7) 
1 #include <cerrno>
2 #include <functional>
3 #include <gmock/gmock.h>
4 #include <gtest/gtest.h>
5 #include <memory>
6 #include <sdeventplus/event.hpp>
7 #include <sdeventplus/exception.hpp>
8 #include <sdeventplus/source/io.hpp>
9 #include <sdeventplus/test/sdevent.hpp>
10 #include <systemd/sd-event.h>
11 #include <type_traits>
12 #include <utility>
13 
14 namespace sdeventplus
15 {
16 namespace source
17 {
18 namespace
19 {
20 
21 using testing::DoAll;
22 using testing::Return;
23 using testing::SaveArg;
24 using testing::SetArgPointee;
25 
26 using UniqueEvent = std::unique_ptr<Event, std::function<void(Event*)>>;
27 
28 class IOTest : public testing::Test
29 {
30   protected:
31     testing::StrictMock<test::SdEventMock> mock;
32     sd_event_source* const expected_source =
33         reinterpret_cast<sd_event_source*>(1234);
34     sd_event* const expected_event = reinterpret_cast<sd_event*>(2345);
35     UniqueEvent event = make_event(expected_event);
36 
37     UniqueEvent make_event(sd_event* event)
38     {
39         auto deleter = [this, event](Event* e) {
40             EXPECT_CALL(this->mock, sd_event_unref(event))
41                 .WillOnce(Return(nullptr));
42             delete e;
43         };
44         return UniqueEvent(new Event(event, std::false_type(), &mock), deleter);
45     }
46 
47     void expect_destruct()
48     {
49         {
50             testing::InSequence sequence;
51             EXPECT_CALL(mock, sd_event_source_set_enabled(expected_source,
52                                                           SD_EVENT_OFF))
53                 .WillOnce(Return(0));
54             EXPECT_CALL(mock, sd_event_source_unref(expected_source))
55                 .WillOnce(Return(nullptr));
56         }
57         EXPECT_CALL(mock, sd_event_unref(expected_event))
58             .WillOnce(Return(nullptr));
59     }
60 };
61 
62 TEST_F(IOTest, ConstructSuccess)
63 {
64     const int fd = 10;
65     const uint32_t events = EPOLLIN | EPOLLET;
66 
67     EXPECT_CALL(mock, sd_event_ref(expected_event))
68         .WillOnce(Return(expected_event));
69     sd_event_io_handler_t handler;
70     EXPECT_CALL(mock, sd_event_add_io(expected_event, testing::_, fd, events,
71                                       testing::_, nullptr))
72         .WillOnce(DoAll(SetArgPointee<1>(expected_source), SaveArg<4>(&handler),
73                         Return(0)));
74     void* userdata;
75     EXPECT_CALL(mock, sd_event_source_set_userdata(expected_source, testing::_))
76         .WillOnce(DoAll(SaveArg<1>(&userdata), Return(nullptr)));
77     int completions = 0;
78     int return_fd;
79     uint32_t return_revents;
80     IO::Callback callback = [&](IO&, int fd, uint32_t revents) {
81         return_fd = fd;
82         return_revents = revents;
83         completions++;
84     };
85     IO io(*event, fd, events, std::move(callback));
86     EXPECT_FALSE(callback);
87     EXPECT_EQ(&io, userdata);
88     EXPECT_EQ(0, completions);
89 
90     EXPECT_EQ(0, handler(nullptr, 5, EPOLLIN, &io));
91     EXPECT_EQ(1, completions);
92     EXPECT_EQ(5, return_fd);
93     EXPECT_EQ(EPOLLIN, return_revents);
94 
95     expect_destruct();
96 }
97 
98 TEST_F(IOTest, ConstructError)
99 {
100     const int fd = 10;
101     const uint32_t events = EPOLLIN | EPOLLET;
102 
103     EXPECT_CALL(mock, sd_event_add_io(expected_event, testing::_, fd, events,
104                                       testing::_, nullptr))
105         .WillOnce(Return(-EINVAL));
106     int completions = 0;
107     IO::Callback callback = [&completions](IO&, int, uint32_t) {
108         completions++;
109     };
110     EXPECT_THROW(IO(*event, fd, events, std::move(callback)), SdEventError);
111     EXPECT_TRUE(callback);
112     EXPECT_EQ(0, completions);
113 }
114 
115 class IOMethodTest : public IOTest
116 {
117   protected:
118     std::unique_ptr<IO> io;
119 
120     void SetUp()
121     {
122         const int fd = 7;
123         const int events = EPOLLOUT;
124 
125         EXPECT_CALL(mock, sd_event_ref(expected_event))
126             .WillOnce(Return(expected_event));
127         EXPECT_CALL(mock, sd_event_add_io(expected_event, testing::_, fd,
128                                           events, testing::_, nullptr))
129             .WillOnce(DoAll(SetArgPointee<1>(expected_source), Return(0)));
130         EXPECT_CALL(mock,
131                     sd_event_source_set_userdata(expected_source, testing::_))
132             .WillOnce(Return(nullptr));
133         io =
134             std::make_unique<IO>(*event, fd, events, [](IO&, int, uint32_t) {});
135     }
136 
137     void TearDown()
138     {
139         expect_destruct();
140         io.reset();
141     }
142 };
143 
144 TEST_F(IOMethodTest, GetFdSuccess)
145 {
146     const int fd = 5;
147     EXPECT_CALL(mock, sd_event_source_get_io_fd(expected_source))
148         .WillOnce(Return(fd));
149     EXPECT_EQ(fd, io->get_fd());
150 }
151 
152 TEST_F(IOMethodTest, GetFdError)
153 {
154     EXPECT_CALL(mock, sd_event_source_get_io_fd(expected_source))
155         .WillOnce(Return(-EINVAL));
156     EXPECT_THROW(io->get_fd(), SdEventError);
157 }
158 
159 TEST_F(IOMethodTest, SetFdSuccess)
160 {
161     const int fd = 5;
162     EXPECT_CALL(mock, sd_event_source_set_io_fd(expected_source, fd))
163         .WillOnce(Return(0));
164     io->set_fd(fd);
165 }
166 
167 TEST_F(IOMethodTest, SetFdError)
168 {
169     const int fd = 3;
170     EXPECT_CALL(mock, sd_event_source_set_io_fd(expected_source, fd))
171         .WillOnce(Return(-EINVAL));
172     EXPECT_THROW(io->set_fd(fd), SdEventError);
173 }
174 
175 TEST_F(IOMethodTest, GetEventsSuccess)
176 {
177     const uint32_t events = EPOLLIN | EPOLLOUT;
178     EXPECT_CALL(mock,
179                 sd_event_source_get_io_events(expected_source, testing::_))
180         .WillOnce(DoAll(SetArgPointee<1>(events), Return(0)));
181     EXPECT_EQ(events, io->get_events());
182 }
183 
184 TEST_F(IOMethodTest, GetEventsError)
185 {
186     EXPECT_CALL(mock,
187                 sd_event_source_get_io_events(expected_source, testing::_))
188         .WillOnce(Return(-EINVAL));
189     EXPECT_THROW(io->get_events(), SdEventError);
190 }
191 
192 TEST_F(IOMethodTest, SetEventsSuccess)
193 {
194     const uint32_t events = EPOLLIN | EPOLLOUT;
195     EXPECT_CALL(mock, sd_event_source_set_io_events(expected_source, events))
196         .WillOnce(Return(0));
197     io->set_events(events);
198 }
199 
200 TEST_F(IOMethodTest, SetEventsError)
201 {
202     const uint32_t events = EPOLLIN | EPOLLOUT;
203     EXPECT_CALL(mock, sd_event_source_set_io_events(expected_source, events))
204         .WillOnce(Return(-EINVAL));
205     EXPECT_THROW(io->set_events(events), SdEventError);
206 }
207 
208 TEST_F(IOMethodTest, GetREventsSuccess)
209 {
210     const uint32_t revents = EPOLLOUT;
211     EXPECT_CALL(mock,
212                 sd_event_source_get_io_revents(expected_source, testing::_))
213         .WillOnce(DoAll(SetArgPointee<1>(revents), Return(0)));
214     EXPECT_EQ(revents, io->get_revents());
215 }
216 
217 TEST_F(IOMethodTest, GetREventsError)
218 {
219     EXPECT_CALL(mock,
220                 sd_event_source_get_io_revents(expected_source, testing::_))
221         .WillOnce(Return(-EINVAL));
222     EXPECT_THROW(io->get_revents(), SdEventError);
223 }
224 
225 } // namespace
226 } // namespace source
227 } // namespace sdeventplus
228