| /* |
| * Copyright (C) 2016, The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <string.h> |
| |
| #include <memory> |
| |
| #include <android-base/logging.h> |
| #include <android-base/unique_fd.h> |
| #include <gtest/gtest.h> |
| #include <utils/Errors.h> |
| #include <utils/StopWatch.h> |
| |
| #include "wificond/looper_backed_event_loop.h" |
| |
| namespace { |
| |
| const int kTimingToleranceMs = 25; |
| |
| // Adapt from libutils/tests/TestHelpers.h |
| class Pipe { |
| public: |
| android::base::unique_fd send_fd; |
| android::base::unique_fd receive_fd; |
| |
| Pipe() { |
| int fds[2]; |
| ::pipe(fds); |
| |
| receive_fd = android::base::unique_fd(fds[0]); |
| send_fd = android::base::unique_fd(fds[1]); |
| } |
| |
| bool writeSignal() { |
| ssize_t n_written = ::write(send_fd, "*", 1); |
| if (n_written != 1) { |
| LOG(ERROR) << "Failed to write signal to pipe: " << strerror(errno); |
| return false; |
| } |
| return true; |
| } |
| |
| bool readSignal() { |
| char buf[1]; |
| ssize_t n_read = ::read(receive_fd, buf, 1); |
| if (n_read != 1) { |
| if (n_read == 0) { |
| LOG(ERROR) << "No data from pipe"; |
| } else { |
| LOG(ERROR) << "Failed to read signal from pipe: " << strerror(errno); |
| } |
| return false; |
| } |
| return true; |
| } |
| }; |
| |
| } // namespace |
| |
| namespace android { |
| namespace wificond { |
| |
| class WificondLooperBackedEventLoopTest : public ::testing::Test { |
| protected: |
| std::unique_ptr<LooperBackedEventLoop> event_loop_; |
| |
| virtual void SetUp() { |
| event_loop_.reset(new LooperBackedEventLoop()); |
| } |
| }; |
| |
| TEST_F(WificondLooperBackedEventLoopTest, LooperBackedEventLoopPostTaskTest) { |
| bool task_executed = false; |
| event_loop_->PostTask([this, &task_executed]() mutable { |
| task_executed = true; event_loop_->TriggerExit();}); |
| EXPECT_FALSE(task_executed); |
| event_loop_->Poll(); |
| EXPECT_TRUE(task_executed); |
| } |
| |
| TEST_F(WificondLooperBackedEventLoopTest, |
| LooperBackedEventLoopPostDelayedTaskTest) { |
| bool task_executed = false; |
| event_loop_->PostDelayedTask([this, &task_executed]() mutable { |
| task_executed = true; event_loop_->TriggerExit();}, 500); |
| EXPECT_FALSE(task_executed); |
| StopWatch stopWatch("DelayedTask"); |
| event_loop_->Poll(); |
| int32_t elapsedMillis = ns2ms(stopWatch.elapsedTime()); |
| EXPECT_NEAR(500, elapsedMillis, kTimingToleranceMs); |
| EXPECT_TRUE(task_executed); |
| } |
| |
| TEST_F(WificondLooperBackedEventLoopTest, LooperBackedEventLoopWatchFdInputReadyTest) { |
| Pipe pipe; |
| bool read_result = false; |
| bool write_result = false; |
| event_loop_->PostTask([&write_result, &pipe]() {write_result = pipe.writeSignal();}); |
| // Read data from pipe when fd is ready for input. |
| EXPECT_TRUE(event_loop_->WatchFileDescriptor( |
| pipe.receive_fd, |
| EventLoop::kModeInput, |
| [&read_result, &pipe, this](int fd) { |
| read_result = pipe.readSignal(); |
| event_loop_->TriggerExit();})); |
| event_loop_->Poll(); |
| EXPECT_EQ(true, read_result); |
| EXPECT_EQ(true, write_result); |
| } |
| |
| TEST_F(WificondLooperBackedEventLoopTest, LooperBackedEventLoopWatchFdOutputReadyTest) { |
| Pipe pipe; |
| bool write_result = false; |
| // Write data to pipe when fd is ready for output. |
| EXPECT_TRUE(event_loop_->WatchFileDescriptor( |
| pipe.send_fd, |
| EventLoop::kModeOutput, |
| [&write_result, &pipe, this](int fd) { |
| write_result = pipe.writeSignal(); |
| event_loop_->TriggerExit();})); |
| event_loop_->Poll(); |
| EXPECT_EQ(true, write_result); |
| EXPECT_EQ(true, pipe.readSignal()); |
| } |
| |
| TEST_F(WificondLooperBackedEventLoopTest, LooperBackedEventLoopStopWatchFdTest) { |
| Pipe pipe; |
| bool read_result = false; |
| bool write_result = false; |
| event_loop_->PostTask([&write_result, &pipe]() {write_result = pipe.writeSignal();}); |
| // Read data from pipe when fd is ready for input. |
| EXPECT_TRUE(event_loop_->WatchFileDescriptor( |
| pipe.receive_fd, |
| EventLoop::kModeInput, |
| [&read_result, &pipe, this](int fd) { |
| read_result = pipe.readSignal(); |
| event_loop_->TriggerExit();})); |
| // Stop watching the file descriptor. |
| EXPECT_TRUE(event_loop_->StopWatchFileDescriptor(pipe.receive_fd)); |
| event_loop_->Poll(); |
| // We wrote to pipe successfully. |
| EXPECT_EQ(true, write_result); |
| // No data was read from the pipe because we stopped watching the file |
| // descriptor. |read_result| is not set to true; |
| EXPECT_EQ(false, read_result); |
| } |
| |
| } // namespace wificond |
| } // namespace android |