mukesh agrawal | 3b1d20a | 2016-10-27 14:19:12 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016, The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include <cerrno> |
| 18 | #include <memory> |
| 19 | #include <tuple> |
| 20 | #include <utility> |
| 21 | |
| 22 | #include "gmock/gmock.h" |
| 23 | #include "gtest/gtest.h" |
| 24 | |
| 25 | #include "wifilogd/tests/mock_command_processor.h" |
| 26 | #include "wifilogd/tests/mock_os.h" |
| 27 | |
| 28 | #include "wifilogd/main_loop.h" |
| 29 | #include "wifilogd/protocol.h" |
| 30 | |
| 31 | namespace android { |
| 32 | namespace wifilogd { |
| 33 | namespace { |
| 34 | |
| 35 | using ::testing::_; |
| 36 | using ::testing::AnyNumber; |
| 37 | using ::testing::Ge; |
| 38 | using ::testing::Return; |
| 39 | using ::testing::StrictMock; |
| 40 | |
| 41 | constexpr int kControlSocketFd = 100; |
| 42 | constexpr char kFakeSocketName[] = "fake-socket"; |
| 43 | |
| 44 | class MainLoopTest : public ::testing::Test { |
| 45 | public: |
| 46 | MainLoopTest() |
| 47 | : os_(new StrictMock<MockOs>()), |
| 48 | command_processor_(new StrictMock<MockCommandProcessor>()) { |
| 49 | EXPECT_CALL(*os_, GetControlSocket(kFakeSocketName)) |
| 50 | .WillOnce(Return(std::tuple<size_t, Os::Errno>{kControlSocketFd, 0})); |
| 51 | main_loop_ = std::make_unique<MainLoop>( |
| 52 | kFakeSocketName, std::unique_ptr<Os>{os_}, |
| 53 | std::unique_ptr<CommandProcessor>{command_processor_}); |
| 54 | } |
| 55 | |
| 56 | protected: |
| 57 | std::unique_ptr<MainLoop> main_loop_; |
| 58 | // We use raw pointers to access the mocks, since ownership passes |
| 59 | // to |main_loop_|. |
| 60 | StrictMock<MockOs>* os_; |
| 61 | StrictMock<MockCommandProcessor>* command_processor_; |
| 62 | }; |
| 63 | |
| 64 | } // namespace |
| 65 | |
| 66 | TEST_F(MainLoopTest, RunOnceReadsFromCorrectSocket) { |
| 67 | EXPECT_CALL(*os_, ReceiveDatagram(kControlSocketFd, _, _)); |
| 68 | EXPECT_CALL(*command_processor_, ProcessCommand(_, _, _)).Times(AnyNumber()); |
| 69 | main_loop_->RunOnce(); |
| 70 | } |
| 71 | |
| 72 | TEST_F(MainLoopTest, RunOnceReadsWithSufficientlyLargeBuffer) { |
| 73 | EXPECT_CALL(*os_, ReceiveDatagram(_, _, Ge(protocol::kMaxMessageSize))); |
| 74 | EXPECT_CALL(*command_processor_, ProcessCommand(_, _, _)).Times(AnyNumber()); |
| 75 | main_loop_->RunOnce(); |
| 76 | } |
| 77 | |
| 78 | TEST_F(MainLoopTest, RunOncePassesSmallestValidMessageToCommandProcessor) { |
| 79 | EXPECT_CALL(*os_, ReceiveDatagram(_, _, _)) |
| 80 | .WillOnce( |
| 81 | Return(std::tuple<size_t, Os::Errno>{sizeof(protocol::Command), 0})); |
| 82 | EXPECT_CALL(*command_processor_, |
| 83 | ProcessCommand(_, sizeof(protocol::Command), _)); |
| 84 | main_loop_->RunOnce(); |
| 85 | } |
| 86 | |
| 87 | TEST_F(MainLoopTest, RunOncePassesLargestValidMessageToCommandProcessor) { |
| 88 | EXPECT_CALL(*os_, ReceiveDatagram(_, _, _)) |
| 89 | .WillOnce( |
| 90 | Return(std::tuple<size_t, Os::Errno>{protocol::kMaxMessageSize, 0})); |
| 91 | EXPECT_CALL(*command_processor_, |
| 92 | ProcessCommand(_, protocol::kMaxMessageSize, _)); |
| 93 | main_loop_->RunOnce(); |
| 94 | } |
| 95 | |
| 96 | TEST_F(MainLoopTest, RunOncePassesRuntMessageToCommandProcessor) { |
| 97 | EXPECT_CALL(*os_, ReceiveDatagram(_, _, _)) |
| 98 | .WillOnce(Return(std::tuple<size_t, Os::Errno>{0, 0})); |
| 99 | EXPECT_CALL(*command_processor_, ProcessCommand(_, 0, _)); |
| 100 | main_loop_->RunOnce(); |
| 101 | } |
| 102 | |
| 103 | TEST_F(MainLoopTest, RunOnceLimitsMaxSizeReportedToCommandProcessor) { |
| 104 | EXPECT_CALL(*os_, ReceiveDatagram(_, _, _)) |
| 105 | .WillOnce(Return( |
| 106 | std::tuple<size_t, Os::Errno>{protocol::kMaxMessageSize + 1, 0})); |
| 107 | EXPECT_CALL(*command_processor_, |
| 108 | ProcessCommand(_, protocol::kMaxMessageSize, _)); |
| 109 | main_loop_->RunOnce(); |
| 110 | } |
| 111 | |
mukesh agrawal | fd59221 | 2016-11-11 16:20:15 -0800 | [diff] [blame] | 112 | TEST_F(MainLoopTest, RunOnceSleepsAndDoesNotPassDataToCommandProcessorOnError) { |
mukesh agrawal | 3b1d20a | 2016-10-27 14:19:12 -0700 | [diff] [blame] | 113 | EXPECT_CALL(*os_, ReceiveDatagram(_, _, protocol::kMaxMessageSize)) |
| 114 | .WillOnce(Return(std::tuple<size_t, Os::Errno>{0, EINTR})); |
mukesh agrawal | fd59221 | 2016-11-11 16:20:15 -0800 | [diff] [blame] | 115 | EXPECT_CALL(*os_, Nanosleep(_)); |
mukesh agrawal | 3b1d20a | 2016-10-27 14:19:12 -0700 | [diff] [blame] | 116 | EXPECT_CALL(*command_processor_, ProcessCommand(_, _, _)).Times(0); |
| 117 | main_loop_->RunOnce(); |
| 118 | } |
| 119 | |
| 120 | // Per |
| 121 | // github.com/google/googletest/blob/master/googletest/docs/AdvancedGuide.md#death-tests, |
| 122 | // death tests should be specially named. |
| 123 | using MainLoopDeathTest = MainLoopTest; |
| 124 | |
| 125 | TEST_F(MainLoopDeathTest, CtorFailureToFetchControlSocketCausesDeath) { |
| 126 | auto os = std::make_unique<StrictMock<MockOs>>(); |
| 127 | auto command_processor = std::make_unique<StrictMock<MockCommandProcessor>>(); |
| 128 | ON_CALL(*os, GetControlSocket(kFakeSocketName)) |
| 129 | .WillByDefault(Return(std::tuple<size_t, Os::Errno>{-1, ERANGE})); |
| 130 | EXPECT_DEATH( |
| 131 | MainLoop(kFakeSocketName, std::move(os), std::move(command_processor)), |
| 132 | "Failed to get control socket"); |
| 133 | } |
| 134 | |
mukesh agrawal | fd59221 | 2016-11-11 16:20:15 -0800 | [diff] [blame] | 135 | TEST_F(MainLoopDeathTest, RunOnceTerminatesOnUnexpectedError) { |
| 136 | ON_CALL(*os_, ReceiveDatagram(_, _, protocol::kMaxMessageSize)) |
| 137 | .WillByDefault(Return(std::tuple<size_t, Os::Errno>{0, EFAULT})); |
| 138 | EXPECT_DEATH(main_loop_->RunOnce(), "Unexpected error"); |
| 139 | } |
| 140 | |
mukesh agrawal | 3b1d20a | 2016-10-27 14:19:12 -0700 | [diff] [blame] | 141 | } // namespace wifilogd |
| 142 | } // namespace android |