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v811_spc009/external/libbrillo/brillo/streams/file_stream_test.cc

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// Copyright 2015 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <brillo/streams/file_stream.h>
#include <sys/stat.h>
#include <limits>
#include <numeric>
#include <string>
#include <utility>
#include <vector>
#include <base/bind.h>
#include <base/files/file_util.h>
#include <base/files/scoped_temp_dir.h>
#include <base/message_loop/message_loop.h>
#include <base/rand_util.h>
#include <base/run_loop.h>
#include <brillo/errors/error_codes.h>
#include <brillo/message_loops/base_message_loop.h>
#include <brillo/message_loops/message_loop_utils.h>
#include <brillo/streams/stream_errors.h>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
using testing::DoAll;
using testing::InSequence;
using testing::Return;
using testing::ReturnArg;
using testing::SaveArg;
using testing::SetErrnoAndReturn;
using testing::_;
namespace brillo {
namespace {
// gmock action that would return a blocking situation from a read() or write().
ACTION(ReturnWouldBlock) {
errno = EWOULDBLOCK;
return -1;
}
// Helper function to read one byte from the stream.
inline int ReadByte(Stream* stream) {
uint8_t byte = 0;
return stream->ReadAllBlocking(&byte, sizeof(byte), nullptr) ? byte : -1;
}
// Helper function to write one byte from the stream.
inline bool WriteByte(Stream* stream, uint8_t byte) {
return stream->WriteAllBlocking(&byte, sizeof(byte), nullptr);
}
// Helper function to test file stream workflow on newly created file.
void TestCreateFile(Stream* stream) {
ASSERT_TRUE(stream->IsOpen());
// Set up a sample data buffer.
std::vector<uint8_t> in_buffer(256);
std::iota(in_buffer.begin(), in_buffer.end(), 0);
// Initial assumptions about empty file stream.
EXPECT_TRUE(stream->CanRead());
EXPECT_TRUE(stream->CanWrite());
EXPECT_TRUE(stream->CanSeek());
EXPECT_TRUE(stream->CanGetSize());
EXPECT_EQ(0, stream->GetPosition());
EXPECT_EQ(0, stream->GetSize());
// Write sample data.
EXPECT_TRUE(stream->WriteAllBlocking(in_buffer.data(), in_buffer.size(),
nullptr));
EXPECT_EQ(in_buffer.size(), stream->GetPosition());
EXPECT_EQ(in_buffer.size(), stream->GetSize());
// Rewind the stream to the beginning.
uint64_t pos = 0;
EXPECT_TRUE(stream->Seek(0, Stream::Whence::FROM_BEGIN, &pos, nullptr));
EXPECT_EQ(0, pos);
EXPECT_EQ(0, stream->GetPosition());
EXPECT_EQ(in_buffer.size(), stream->GetSize());
// Read the file contents back.
std::vector<uint8_t> out_buffer(256);
EXPECT_TRUE(stream->ReadAllBlocking(out_buffer.data(), out_buffer.size(),
nullptr));
EXPECT_EQ(out_buffer.size(), stream->GetPosition());
EXPECT_EQ(out_buffer.size(), stream->GetSize());
// Make sure the data read matches those written.
EXPECT_EQ(in_buffer, out_buffer);
// Random read/write
EXPECT_TRUE(stream->Seek(10, Stream::Whence::FROM_BEGIN, &pos, nullptr));
EXPECT_EQ(10, pos);
// Since our data buffer contained values from 0 to 255, the byte at position
// 10 will contain the value of 10.
EXPECT_EQ(10, ReadByte(stream));
EXPECT_EQ(11, ReadByte(stream));
EXPECT_EQ(12, ReadByte(stream));
EXPECT_TRUE(stream->Seek(7, Stream::Whence::FROM_CURRENT, nullptr, nullptr));
EXPECT_EQ(20, ReadByte(stream));
EXPECT_EQ(21, stream->GetPosition());
EXPECT_TRUE(stream->Seek(-2, Stream::Whence::FROM_CURRENT, &pos, nullptr));
EXPECT_EQ(19, pos);
EXPECT_TRUE(WriteByte(stream, 100));
EXPECT_EQ(20, ReadByte(stream));
EXPECT_TRUE(stream->Seek(-2, Stream::Whence::FROM_CURRENT, nullptr, nullptr));
EXPECT_EQ(100, ReadByte(stream));
EXPECT_EQ(20, ReadByte(stream));
EXPECT_TRUE(stream->Seek(-1, Stream::Whence::FROM_END, &pos, nullptr));
EXPECT_EQ(255, pos);
EXPECT_EQ(255, ReadByte(stream));
EXPECT_EQ(-1, ReadByte(stream));
}
// Helper functions for base::Bind.
void SetSizeT(size_t* target, size_t source) {
*target = source;
}
void SetToTrue(bool* target, const Error* /* error */) {
*target = true;
}
} // anonymous namespace
// A mock file descriptor wrapper to test low-level file API used by FileStream.
class MockFileDescriptor : public FileStream::FileDescriptorInterface {
public:
MOCK_METHOD(bool, IsOpen, (), (const, override));
MOCK_METHOD(ssize_t, Read, (void*, size_t), (override));
MOCK_METHOD(ssize_t, Write, (const void*, size_t), (override));
MOCK_METHOD(off64_t, Seek, (off64_t, int), (override));
MOCK_METHOD(mode_t, GetFileMode, (), (const, override));
MOCK_METHOD(uint64_t, GetSize, (), (const, override));
MOCK_METHOD(int, Truncate, (off64_t), (const, override));
MOCK_METHOD(int, Close, (), (override));
MOCK_METHOD(bool,
WaitForData,
(Stream::AccessMode, const DataCallback&, ErrorPtr*),
(override));
MOCK_METHOD(int,
WaitForDataBlocking,
(Stream::AccessMode, base::TimeDelta, Stream::AccessMode*),
(override));
MOCK_METHOD(void, CancelPendingAsyncOperations, (), (override));
};
class FileStreamTest : public testing::Test {
public:
void SetUp() override {
CreateStream(S_IFREG, Stream::AccessMode::READ_WRITE);
}
MockFileDescriptor& fd_mock() {
return *static_cast<MockFileDescriptor*>(stream_->fd_interface_.get());
}
void CreateStream(mode_t file_mode, Stream::AccessMode access_mode) {
std::unique_ptr<MockFileDescriptor> fd{new MockFileDescriptor{}};
EXPECT_CALL(*fd, GetFileMode()).WillOnce(Return(file_mode));
stream_.reset(new FileStream(std::move(fd), access_mode));
EXPECT_CALL(fd_mock(), IsOpen()).WillRepeatedly(Return(true));
}
void ExpectStreamClosed(const ErrorPtr& error) const {
EXPECT_EQ(errors::stream::kDomain, error->GetDomain());
EXPECT_EQ(errors::stream::kStreamClosed, error->GetCode());
EXPECT_EQ("Stream is closed", error->GetMessage());
}
void ExpectStreamOffsetTooLarge(const ErrorPtr& error) const {
EXPECT_EQ(errors::stream::kDomain, error->GetDomain());
EXPECT_EQ(errors::stream::kInvalidParameter, error->GetCode());
EXPECT_EQ("The stream offset value is out of range", error->GetMessage());
}
inline static char* IntToPtr(int addr) {
return reinterpret_cast<char*>(addr);
}
inline static const char* IntToConstPtr(int addr) {
return reinterpret_cast<const char*>(addr);
}
bool CallWaitForData(Stream::AccessMode mode, ErrorPtr* error) {
return stream_->WaitForData(mode, {}, error);
}
std::unique_ptr<FileStream> stream_;
const uint64_t kMaxSize = std::numeric_limits<int64_t>::max();
const uint64_t kTooLargeSize = std::numeric_limits<uint64_t>::max();
// Dummy buffer pointer values to make sure that input pointer values
// are delegated to the file interface without a change.
char* const test_read_buffer_ = IntToPtr(12345);
const char* const test_write_buffer_ = IntToConstPtr(67890);
};
TEST_F(FileStreamTest, IsOpen) {
EXPECT_TRUE(stream_->IsOpen());
EXPECT_CALL(fd_mock(), IsOpen()).WillOnce(Return(false));
EXPECT_FALSE(stream_->IsOpen());
}
TEST_F(FileStreamTest, CanRead) {
CreateStream(S_IFREG, Stream::AccessMode::READ_WRITE);
EXPECT_TRUE(stream_->CanRead());
EXPECT_CALL(fd_mock(), IsOpen()).WillRepeatedly(Return(false));
EXPECT_FALSE(stream_->CanRead());
CreateStream(S_IFREG, Stream::AccessMode::READ);
EXPECT_TRUE(stream_->CanRead());
CreateStream(S_IFREG, Stream::AccessMode::WRITE);
EXPECT_FALSE(stream_->CanRead());
}
TEST_F(FileStreamTest, CanWrite) {
CreateStream(S_IFREG, Stream::AccessMode::READ_WRITE);
EXPECT_TRUE(stream_->CanWrite());
EXPECT_CALL(fd_mock(), IsOpen()).WillRepeatedly(Return(false));
EXPECT_FALSE(stream_->CanWrite());
CreateStream(S_IFREG, Stream::AccessMode::READ);
EXPECT_FALSE(stream_->CanWrite());
CreateStream(S_IFREG, Stream::AccessMode::WRITE);
EXPECT_TRUE(stream_->CanWrite());
}
TEST_F(FileStreamTest, CanSeek) {
CreateStream(S_IFBLK, Stream::AccessMode::READ_WRITE);
EXPECT_TRUE(stream_->CanSeek());
CreateStream(S_IFDIR, Stream::AccessMode::READ_WRITE);
EXPECT_TRUE(stream_->CanSeek());
CreateStream(S_IFREG, Stream::AccessMode::READ_WRITE);
EXPECT_TRUE(stream_->CanSeek());
CreateStream(S_IFLNK, Stream::AccessMode::READ_WRITE);
EXPECT_TRUE(stream_->CanSeek());
CreateStream(S_IFCHR, Stream::AccessMode::READ_WRITE);
EXPECT_FALSE(stream_->CanSeek());
CreateStream(S_IFSOCK, Stream::AccessMode::READ_WRITE);
EXPECT_FALSE(stream_->CanSeek());
CreateStream(S_IFIFO, Stream::AccessMode::READ_WRITE);
EXPECT_FALSE(stream_->CanSeek());
CreateStream(S_IFREG, Stream::AccessMode::READ);
EXPECT_TRUE(stream_->CanSeek());
CreateStream(S_IFREG, Stream::AccessMode::WRITE);
EXPECT_TRUE(stream_->CanSeek());
}
TEST_F(FileStreamTest, CanGetSize) {
CreateStream(S_IFBLK, Stream::AccessMode::READ_WRITE);
EXPECT_TRUE(stream_->CanGetSize());
CreateStream(S_IFDIR, Stream::AccessMode::READ_WRITE);
EXPECT_TRUE(stream_->CanGetSize());
CreateStream(S_IFREG, Stream::AccessMode::READ_WRITE);
EXPECT_TRUE(stream_->CanGetSize());
CreateStream(S_IFLNK, Stream::AccessMode::READ_WRITE);
EXPECT_TRUE(stream_->CanGetSize());
CreateStream(S_IFCHR, Stream::AccessMode::READ_WRITE);
EXPECT_FALSE(stream_->CanGetSize());
CreateStream(S_IFSOCK, Stream::AccessMode::READ_WRITE);
EXPECT_FALSE(stream_->CanGetSize());
CreateStream(S_IFIFO, Stream::AccessMode::READ_WRITE);
EXPECT_FALSE(stream_->CanGetSize());
CreateStream(S_IFREG, Stream::AccessMode::READ);
EXPECT_TRUE(stream_->CanGetSize());
CreateStream(S_IFREG, Stream::AccessMode::WRITE);
EXPECT_TRUE(stream_->CanGetSize());
}
TEST_F(FileStreamTest, GetSize) {
EXPECT_CALL(fd_mock(), GetSize()).WillRepeatedly(Return(12345));
EXPECT_EQ(12345u, stream_->GetSize());
EXPECT_CALL(fd_mock(), IsOpen()).WillOnce(Return(false));
EXPECT_EQ(0u, stream_->GetSize());
}
TEST_F(FileStreamTest, SetSizeBlocking) {
EXPECT_CALL(fd_mock(), Truncate(0)).WillOnce(Return(0));
EXPECT_TRUE(stream_->SetSizeBlocking(0, nullptr));
EXPECT_CALL(fd_mock(), Truncate(123)).WillOnce(Return(0));
EXPECT_TRUE(stream_->SetSizeBlocking(123, nullptr));
EXPECT_CALL(fd_mock(), Truncate(kMaxSize)).WillOnce(Return(0));
EXPECT_TRUE(stream_->SetSizeBlocking(kMaxSize, nullptr));
}
TEST_F(FileStreamTest, SetSizeBlocking_Fail) {
brillo::ErrorPtr error;
EXPECT_CALL(fd_mock(), Truncate(1235)).WillOnce(SetErrnoAndReturn(EIO, -1));
EXPECT_FALSE(stream_->SetSizeBlocking(1235, &error));
EXPECT_EQ(errors::system::kDomain, error->GetDomain());
EXPECT_EQ("EIO", error->GetCode());
error.reset();
EXPECT_FALSE(stream_->SetSizeBlocking(kTooLargeSize, &error));
ExpectStreamOffsetTooLarge(error);
error.reset();
EXPECT_CALL(fd_mock(), IsOpen()).WillOnce(Return(false));
EXPECT_FALSE(stream_->SetSizeBlocking(1235, &error));
ExpectStreamClosed(error);
}
TEST_F(FileStreamTest, GetRemainingSize) {
EXPECT_CALL(fd_mock(), Seek(0, SEEK_CUR)).WillOnce(Return(234));
EXPECT_CALL(fd_mock(), GetSize()).WillOnce(Return(1234));
EXPECT_EQ(1000u, stream_->GetRemainingSize());
EXPECT_CALL(fd_mock(), Seek(0, SEEK_CUR)).WillOnce(Return(1234));
EXPECT_CALL(fd_mock(), GetSize()).WillOnce(Return(1000));
EXPECT_EQ(0u, stream_->GetRemainingSize());
}
TEST_F(FileStreamTest, Seek_Set) {
uint64_t pos = 0;
EXPECT_CALL(fd_mock(), Seek(0, SEEK_SET)).WillOnce(Return(0));
EXPECT_TRUE(stream_->Seek(0, Stream::Whence::FROM_BEGIN, &pos, nullptr));
EXPECT_EQ(0u, pos);
EXPECT_CALL(fd_mock(), Seek(123456, SEEK_SET)).WillOnce(Return(123456));
EXPECT_TRUE(stream_->Seek(123456, Stream::Whence::FROM_BEGIN, &pos, nullptr));
EXPECT_EQ(123456u, pos);
EXPECT_CALL(fd_mock(), Seek(kMaxSize, SEEK_SET))
.WillRepeatedly(Return(kMaxSize));
EXPECT_TRUE(stream_->Seek(kMaxSize, Stream::Whence::FROM_BEGIN, &pos,
nullptr));
EXPECT_EQ(kMaxSize, pos);
EXPECT_TRUE(stream_->Seek(kMaxSize, Stream::Whence::FROM_BEGIN, nullptr,
nullptr));
}
TEST_F(FileStreamTest, Seek_Cur) {
uint64_t pos = 0;
EXPECT_CALL(fd_mock(), Seek(0, SEEK_CUR)).WillOnce(Return(100));
EXPECT_TRUE(stream_->Seek(0, Stream::Whence::FROM_CURRENT, &pos, nullptr));
EXPECT_EQ(100u, pos);
EXPECT_CALL(fd_mock(), Seek(234, SEEK_CUR)).WillOnce(Return(1234));
EXPECT_TRUE(stream_->Seek(234, Stream::Whence::FROM_CURRENT, &pos, nullptr));
EXPECT_EQ(1234u, pos);
EXPECT_CALL(fd_mock(), Seek(-100, SEEK_CUR)).WillOnce(Return(900));
EXPECT_TRUE(stream_->Seek(-100, Stream::Whence::FROM_CURRENT, &pos, nullptr));
EXPECT_EQ(900u, pos);
}
TEST_F(FileStreamTest, Seek_End) {
uint64_t pos = 0;
EXPECT_CALL(fd_mock(), Seek(0, SEEK_END)).WillOnce(Return(1000));
EXPECT_TRUE(stream_->Seek(0, Stream::Whence::FROM_END, &pos, nullptr));
EXPECT_EQ(1000u, pos);
EXPECT_CALL(fd_mock(), Seek(234, SEEK_END)).WillOnce(Return(10234));
EXPECT_TRUE(stream_->Seek(234, Stream::Whence::FROM_END, &pos, nullptr));
EXPECT_EQ(10234u, pos);
EXPECT_CALL(fd_mock(), Seek(-100, SEEK_END)).WillOnce(Return(9900));
EXPECT_TRUE(stream_->Seek(-100, Stream::Whence::FROM_END, &pos, nullptr));
EXPECT_EQ(9900u, pos);
}
TEST_F(FileStreamTest, Seek_Fail) {
brillo::ErrorPtr error;
EXPECT_CALL(fd_mock(), Seek(0, SEEK_SET))
.WillOnce(SetErrnoAndReturn(EPIPE, -1));
EXPECT_FALSE(stream_->Seek(0, Stream::Whence::FROM_BEGIN, nullptr, &error));
EXPECT_EQ(errors::system::kDomain, error->GetDomain());
EXPECT_EQ("EPIPE", error->GetCode());
}
TEST_F(FileStreamTest, ReadAsync) {
size_t read_size = 0;
bool failed = false;
FileStream::FileDescriptorInterface::DataCallback data_callback;
EXPECT_CALL(fd_mock(), Read(test_read_buffer_, 100))
.WillOnce(ReturnWouldBlock());
EXPECT_CALL(fd_mock(), WaitForData(Stream::AccessMode::READ, _, _))
.WillOnce(DoAll(SaveArg<1>(&data_callback), Return(true)));
EXPECT_TRUE(stream_->ReadAsync(test_read_buffer_, 100,
base::Bind(&SetSizeT, &read_size),
base::Bind(&SetToTrue, &failed),
nullptr));
EXPECT_EQ(0u, read_size);
EXPECT_FALSE(failed);
EXPECT_CALL(fd_mock(), Read(test_read_buffer_, 100)).WillOnce(Return(83));
data_callback.Run(Stream::AccessMode::READ);
EXPECT_EQ(83u, read_size);
EXPECT_FALSE(failed);
}
TEST_F(FileStreamTest, ReadNonBlocking) {
size_t size = 0;
bool eos = false;
EXPECT_CALL(fd_mock(), Read(test_read_buffer_, _))
.WillRepeatedly(ReturnArg<1>());
EXPECT_TRUE(stream_->ReadNonBlocking(test_read_buffer_, 100, &size, &eos,
nullptr));
EXPECT_EQ(100u, size);
EXPECT_FALSE(eos);
EXPECT_TRUE(stream_->ReadNonBlocking(test_read_buffer_, 0, &size, &eos,
nullptr));
EXPECT_EQ(0u, size);
EXPECT_FALSE(eos);
EXPECT_CALL(fd_mock(), Read(test_read_buffer_, _)).WillOnce(Return(0));
EXPECT_TRUE(stream_->ReadNonBlocking(test_read_buffer_, 100, &size, &eos,
nullptr));
EXPECT_EQ(0u, size);
EXPECT_TRUE(eos);
EXPECT_CALL(fd_mock(), Read(test_read_buffer_, _))
.WillOnce(SetErrnoAndReturn(EAGAIN, -1));
EXPECT_TRUE(stream_->ReadNonBlocking(test_read_buffer_, 100, &size, &eos,
nullptr));
EXPECT_EQ(0u, size);
EXPECT_FALSE(eos);
}
TEST_F(FileStreamTest, ReadNonBlocking_Fail) {
size_t size = 0;
brillo::ErrorPtr error;
EXPECT_CALL(fd_mock(), Read(test_read_buffer_, _))
.WillOnce(SetErrnoAndReturn(EACCES, -1));
EXPECT_FALSE(stream_->ReadNonBlocking(test_read_buffer_, 100, &size, nullptr,
&error));
EXPECT_EQ(errors::system::kDomain, error->GetDomain());
EXPECT_EQ("EACCES", error->GetCode());
}
TEST_F(FileStreamTest, ReadBlocking) {
size_t size = 0;
EXPECT_CALL(fd_mock(), Read(test_read_buffer_, 100)).WillOnce(Return(20));
EXPECT_TRUE(stream_->ReadBlocking(test_read_buffer_, 100, &size, nullptr));
EXPECT_EQ(20u, size);
{
InSequence seq;
EXPECT_CALL(fd_mock(), Read(test_read_buffer_, 80))
.WillOnce(SetErrnoAndReturn(EAGAIN, -1));
EXPECT_CALL(fd_mock(), WaitForDataBlocking(Stream::AccessMode::READ, _, _))
.WillOnce(Return(1));
EXPECT_CALL(fd_mock(), Read(test_read_buffer_, 80)).WillOnce(Return(45));
}
EXPECT_TRUE(stream_->ReadBlocking(test_read_buffer_, 80, &size, nullptr));
EXPECT_EQ(45u, size);
EXPECT_CALL(fd_mock(), Read(test_read_buffer_, 50)).WillOnce(Return(0));
EXPECT_TRUE(stream_->ReadBlocking(test_read_buffer_, 50, &size, nullptr));
EXPECT_EQ(0u, size);
}
TEST_F(FileStreamTest, ReadBlocking_Fail) {
{
InSequence seq;
EXPECT_CALL(fd_mock(), Read(test_read_buffer_, 80))
.WillOnce(SetErrnoAndReturn(EAGAIN, -1));
EXPECT_CALL(fd_mock(), WaitForDataBlocking(Stream::AccessMode::READ, _, _))
.WillOnce(SetErrnoAndReturn(EBADF, -1));
}
brillo::ErrorPtr error;
size_t size = 0;
EXPECT_FALSE(stream_->ReadBlocking(test_read_buffer_, 80, &size, &error));
EXPECT_EQ(errors::system::kDomain, error->GetDomain());
EXPECT_EQ("EBADF", error->GetCode());
}
TEST_F(FileStreamTest, ReadAllBlocking) {
{
InSequence seq;
EXPECT_CALL(fd_mock(), Read(test_read_buffer_, 100)).WillOnce(Return(20));
EXPECT_CALL(fd_mock(), Read(test_read_buffer_ + 20, 80))
.WillOnce(SetErrnoAndReturn(EAGAIN, -1));
EXPECT_CALL(fd_mock(), WaitForDataBlocking(Stream::AccessMode::READ, _, _))
.WillOnce(Return(1));
EXPECT_CALL(fd_mock(), Read(test_read_buffer_ + 20, 80))
.WillOnce(Return(45));
EXPECT_CALL(fd_mock(), Read(test_read_buffer_ + 65, 35))
.WillOnce(SetErrnoAndReturn(EAGAIN, -1));
EXPECT_CALL(fd_mock(), WaitForDataBlocking(Stream::AccessMode::READ, _, _))
.WillOnce(Return(1));
EXPECT_CALL(fd_mock(), Read(test_read_buffer_ + 65, 35))
.WillOnce(SetErrnoAndReturn(EAGAIN, -1));
EXPECT_CALL(fd_mock(), WaitForDataBlocking(Stream::AccessMode::READ, _, _))
.WillOnce(Return(1));
EXPECT_CALL(fd_mock(), Read(test_read_buffer_ + 65, 35))
.WillOnce(Return(35));
}
EXPECT_TRUE(stream_->ReadAllBlocking(test_read_buffer_, 100, nullptr));
}
TEST_F(FileStreamTest, ReadAllBlocking_Fail) {
{
InSequence seq;
EXPECT_CALL(fd_mock(), Read(test_read_buffer_, 100)).WillOnce(Return(20));
EXPECT_CALL(fd_mock(), Read(test_read_buffer_ + 20, 80))
.WillOnce(Return(0));
}
brillo::ErrorPtr error;
EXPECT_FALSE(stream_->ReadAllBlocking(test_read_buffer_, 100, &error));
EXPECT_EQ(errors::stream::kDomain, error->GetDomain());
EXPECT_EQ(errors::stream::kPartialData, error->GetCode());
EXPECT_EQ("Reading past the end of stream", error->GetMessage());
}
TEST_F(FileStreamTest, WriteAsync) {
size_t write_size = 0;
bool failed = false;
FileStream::FileDescriptorInterface::DataCallback data_callback;
EXPECT_CALL(fd_mock(), Write(test_write_buffer_, 100))
.WillOnce(ReturnWouldBlock());
EXPECT_CALL(fd_mock(), WaitForData(Stream::AccessMode::WRITE, _, _))
.WillOnce(DoAll(SaveArg<1>(&data_callback), Return(true)));
EXPECT_TRUE(stream_->WriteAsync(test_write_buffer_, 100,
base::Bind(&SetSizeT, &write_size),
base::Bind(&SetToTrue, &failed),
nullptr));
EXPECT_EQ(0u, write_size);
EXPECT_FALSE(failed);
EXPECT_CALL(fd_mock(), Write(test_write_buffer_, 100)).WillOnce(Return(87));
data_callback.Run(Stream::AccessMode::WRITE);
EXPECT_EQ(87u, write_size);
EXPECT_FALSE(failed);
}
TEST_F(FileStreamTest, WriteNonBlocking) {
size_t size = 0;
EXPECT_CALL(fd_mock(), Write(test_write_buffer_, _))
.WillRepeatedly(ReturnArg<1>());
EXPECT_TRUE(stream_->WriteNonBlocking(test_write_buffer_, 100, &size,
nullptr));
EXPECT_EQ(100u, size);
EXPECT_TRUE(stream_->WriteNonBlocking(test_write_buffer_, 0, &size, nullptr));
EXPECT_EQ(0u, size);
EXPECT_CALL(fd_mock(), Write(test_write_buffer_, _)).WillOnce(Return(0));
EXPECT_TRUE(stream_->WriteNonBlocking(test_write_buffer_, 100, &size,
nullptr));
EXPECT_EQ(0u, size);
EXPECT_CALL(fd_mock(), Write(test_write_buffer_, _))
.WillOnce(SetErrnoAndReturn(EAGAIN, -1));
EXPECT_TRUE(stream_->WriteNonBlocking(test_write_buffer_, 100, &size,
nullptr));
EXPECT_EQ(0u, size);
}
TEST_F(FileStreamTest, WriteNonBlocking_Fail) {
size_t size = 0;
brillo::ErrorPtr error;
EXPECT_CALL(fd_mock(), Write(test_write_buffer_, _))
.WillOnce(SetErrnoAndReturn(EACCES, -1));
EXPECT_FALSE(stream_->WriteNonBlocking(test_write_buffer_, 100, &size,
&error));
EXPECT_EQ(errors::system::kDomain, error->GetDomain());
EXPECT_EQ("EACCES", error->GetCode());
}
TEST_F(FileStreamTest, WriteBlocking) {
size_t size = 0;
EXPECT_CALL(fd_mock(), Write(test_write_buffer_, 100)).WillOnce(Return(20));
EXPECT_TRUE(stream_->WriteBlocking(test_write_buffer_, 100, &size, nullptr));
EXPECT_EQ(20u, size);
{
InSequence seq;
EXPECT_CALL(fd_mock(), Write(test_write_buffer_, 80))
.WillOnce(SetErrnoAndReturn(EAGAIN, -1));
EXPECT_CALL(fd_mock(), WaitForDataBlocking(Stream::AccessMode::WRITE, _, _))
.WillOnce(Return(1));
EXPECT_CALL(fd_mock(), Write(test_write_buffer_, 80)).WillOnce(Return(45));
}
EXPECT_TRUE(stream_->WriteBlocking(test_write_buffer_, 80, &size, nullptr));
EXPECT_EQ(45u, size);
{
InSequence seq;
EXPECT_CALL(fd_mock(), Write(test_write_buffer_, 50)).WillOnce(Return(0));
EXPECT_CALL(fd_mock(), WaitForDataBlocking(Stream::AccessMode::WRITE, _, _))
.WillOnce(Return(1));
EXPECT_CALL(fd_mock(), Write(test_write_buffer_, 50)).WillOnce(Return(1));
}
EXPECT_TRUE(stream_->WriteBlocking(test_write_buffer_, 50, &size, nullptr));
EXPECT_EQ(1u, size);
}
TEST_F(FileStreamTest, WriteBlocking_Fail) {
{
InSequence seq;
EXPECT_CALL(fd_mock(), Write(test_write_buffer_, 80))
.WillOnce(SetErrnoAndReturn(EAGAIN, -1));
EXPECT_CALL(fd_mock(), WaitForDataBlocking(Stream::AccessMode::WRITE, _, _))
.WillOnce(SetErrnoAndReturn(EBADF, -1));
}
brillo::ErrorPtr error;
size_t size = 0;
EXPECT_FALSE(stream_->WriteBlocking(test_write_buffer_, 80, &size, &error));
EXPECT_EQ(errors::system::kDomain, error->GetDomain());
EXPECT_EQ("EBADF", error->GetCode());
}
TEST_F(FileStreamTest, WriteAllBlocking) {
{
InSequence seq;
EXPECT_CALL(fd_mock(), Write(test_write_buffer_, 100)).WillOnce(Return(20));
EXPECT_CALL(fd_mock(), Write(test_write_buffer_ + 20, 80))
.WillOnce(SetErrnoAndReturn(EAGAIN, -1));
EXPECT_CALL(fd_mock(), WaitForDataBlocking(Stream::AccessMode::WRITE, _, _))
.WillOnce(Return(1));
EXPECT_CALL(fd_mock(), Write(test_write_buffer_ + 20, 80))
.WillOnce(Return(45));
EXPECT_CALL(fd_mock(), Write(test_write_buffer_ + 65, 35))
.WillOnce(SetErrnoAndReturn(EAGAIN, -1));
EXPECT_CALL(fd_mock(), WaitForDataBlocking(Stream::AccessMode::WRITE, _, _))
.WillOnce(Return(1));
EXPECT_CALL(fd_mock(), Write(test_write_buffer_ + 65, 35))
.WillOnce(SetErrnoAndReturn(EAGAIN, -1));
EXPECT_CALL(fd_mock(), WaitForDataBlocking(Stream::AccessMode::WRITE, _, _))
.WillOnce(Return(1));
EXPECT_CALL(fd_mock(), Write(test_write_buffer_ + 65, 35))
.WillOnce(Return(35));
}
EXPECT_TRUE(stream_->WriteAllBlocking(test_write_buffer_, 100, nullptr));
}
TEST_F(FileStreamTest, WriteAllBlocking_Fail) {
{
InSequence seq;
EXPECT_CALL(fd_mock(), Write(test_write_buffer_, 80))
.WillOnce(SetErrnoAndReturn(EAGAIN, -1));
EXPECT_CALL(fd_mock(), WaitForDataBlocking(Stream::AccessMode::WRITE, _, _))
.WillOnce(SetErrnoAndReturn(EBADF, -1));
}
brillo::ErrorPtr error;
EXPECT_FALSE(stream_->WriteAllBlocking(test_write_buffer_, 80, &error));
EXPECT_EQ(errors::system::kDomain, error->GetDomain());
EXPECT_EQ("EBADF", error->GetCode());
}
TEST_F(FileStreamTest, WaitForDataBlocking_Timeout) {
EXPECT_CALL(fd_mock(), WaitForDataBlocking(Stream::AccessMode::WRITE, _, _))
.WillOnce(Return(0));
brillo::ErrorPtr error;
EXPECT_FALSE(stream_->WaitForDataBlocking(Stream::AccessMode::WRITE, {},
nullptr, &error));
EXPECT_EQ(errors::stream::kDomain, error->GetDomain());
EXPECT_EQ(errors::stream::kTimeout, error->GetCode());
}
TEST_F(FileStreamTest, FlushBlocking) {
EXPECT_TRUE(stream_->FlushBlocking(nullptr));
}
TEST_F(FileStreamTest, CloseBlocking) {
EXPECT_CALL(fd_mock(), Close()).WillOnce(Return(0));
EXPECT_TRUE(stream_->CloseBlocking(nullptr));
EXPECT_CALL(fd_mock(), IsOpen()).WillOnce(Return(false));
EXPECT_TRUE(stream_->CloseBlocking(nullptr));
}
TEST_F(FileStreamTest, CloseBlocking_Fail) {
brillo::ErrorPtr error;
EXPECT_CALL(fd_mock(), Close()).WillOnce(SetErrnoAndReturn(EFBIG, -1));
EXPECT_FALSE(stream_->CloseBlocking(&error));
EXPECT_EQ(errors::system::kDomain, error->GetDomain());
EXPECT_EQ("EFBIG", error->GetCode());
}
TEST_F(FileStreamTest, WaitForData) {
EXPECT_CALL(fd_mock(), WaitForData(Stream::AccessMode::READ, _, _))
.WillOnce(Return(true));
EXPECT_TRUE(CallWaitForData(Stream::AccessMode::READ, nullptr));
EXPECT_CALL(fd_mock(), WaitForData(Stream::AccessMode::WRITE, _, _))
.WillOnce(Return(true));
EXPECT_TRUE(CallWaitForData(Stream::AccessMode::WRITE, nullptr));
EXPECT_CALL(fd_mock(), WaitForData(Stream::AccessMode::READ_WRITE, _, _))
.WillOnce(Return(true));
EXPECT_TRUE(CallWaitForData(Stream::AccessMode::READ_WRITE, nullptr));
EXPECT_CALL(fd_mock(), WaitForData(Stream::AccessMode::READ_WRITE, _, _))
.WillOnce(Return(false));
EXPECT_FALSE(CallWaitForData(Stream::AccessMode::READ_WRITE, nullptr));
}
TEST_F(FileStreamTest, CreateTemporary) {
StreamPtr stream = FileStream::CreateTemporary(nullptr);
ASSERT_NE(nullptr, stream.get());
TestCreateFile(stream.get());
}
TEST_F(FileStreamTest, OpenRead) {
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
base::FilePath path = temp_dir.GetPath().Append(base::FilePath{"test.dat"});
std::vector<char> buffer(1024 * 1024);
base::RandBytes(buffer.data(), buffer.size());
int file_size = buffer.size(); // Stupid base::WriteFile taking "int" size.
ASSERT_EQ(file_size, base::WriteFile(path, buffer.data(), file_size));
StreamPtr stream = FileStream::Open(path,
Stream::AccessMode::READ,
FileStream::Disposition::OPEN_EXISTING,
nullptr);
ASSERT_NE(nullptr, stream.get());
ASSERT_TRUE(stream->IsOpen());
EXPECT_TRUE(stream->CanRead());
EXPECT_FALSE(stream->CanWrite());
EXPECT_TRUE(stream->CanSeek());
EXPECT_TRUE(stream->CanGetSize());
EXPECT_EQ(0u, stream->GetPosition());
EXPECT_EQ(buffer.size(), stream->GetSize());
std::vector<char> buffer2(buffer.size());
EXPECT_TRUE(stream->ReadAllBlocking(buffer2.data(), buffer2.size(), nullptr));
EXPECT_EQ(buffer2, buffer);
EXPECT_TRUE(stream->CloseBlocking(nullptr));
}
TEST_F(FileStreamTest, OpenWrite) {
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
base::FilePath path = temp_dir.GetPath().Append(base::FilePath{"test.dat"});
std::vector<char> buffer(1024 * 1024);
base::RandBytes(buffer.data(), buffer.size());
StreamPtr stream = FileStream::Open(path,
Stream::AccessMode::WRITE,
FileStream::Disposition::CREATE_ALWAYS,
nullptr);
ASSERT_NE(nullptr, stream.get());
ASSERT_TRUE(stream->IsOpen());
EXPECT_FALSE(stream->CanRead());
EXPECT_TRUE(stream->CanWrite());
EXPECT_TRUE(stream->CanSeek());
EXPECT_TRUE(stream->CanGetSize());
EXPECT_EQ(0u, stream->GetPosition());
EXPECT_EQ(0u, stream->GetSize());
EXPECT_TRUE(stream->WriteAllBlocking(buffer.data(), buffer.size(), nullptr));
EXPECT_TRUE(stream->CloseBlocking(nullptr));
std::vector<char> buffer2(buffer.size());
int file_size = buffer2.size(); // Stupid base::ReadFile taking "int" size.
ASSERT_EQ(file_size, base::ReadFile(path, buffer2.data(), file_size));
EXPECT_EQ(buffer2, buffer);
}
TEST_F(FileStreamTest, Open_OpenExisting) {
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
base::FilePath path = temp_dir.GetPath().Append(base::FilePath{"test.dat"});
std::string data{"Lorem ipsum dolor sit amet ..."};
int data_size = data.size(); // I hate ints for data size...
ASSERT_EQ(data_size, base::WriteFile(path, data.data(), data_size));
StreamPtr stream = FileStream::Open(path,
Stream::AccessMode::READ_WRITE,
FileStream::Disposition::OPEN_EXISTING,
nullptr);
ASSERT_NE(nullptr, stream.get());
EXPECT_TRUE(stream->CanRead());
EXPECT_TRUE(stream->CanWrite());
EXPECT_TRUE(stream->CanSeek());
EXPECT_TRUE(stream->CanGetSize());
EXPECT_EQ(0u, stream->GetPosition());
EXPECT_EQ(data.size(), stream->GetSize());
EXPECT_TRUE(stream->CloseBlocking(nullptr));
}
TEST_F(FileStreamTest, Open_OpenExisting_Fail) {
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
base::FilePath path = temp_dir.GetPath().Append(base::FilePath{"test.dat"});
ErrorPtr error;
StreamPtr stream = FileStream::Open(path,
Stream::AccessMode::READ_WRITE,
FileStream::Disposition::OPEN_EXISTING,
&error);
ASSERT_EQ(nullptr, stream.get());
EXPECT_EQ(errors::system::kDomain, error->GetDomain());
EXPECT_EQ("ENOENT", error->GetCode());
}
TEST_F(FileStreamTest, Open_CreateAlways_New) {
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
base::FilePath path = temp_dir.GetPath().Append(base::FilePath{"test.dat"});
StreamPtr stream = FileStream::Open(path,
Stream::AccessMode::READ_WRITE,
FileStream::Disposition::CREATE_ALWAYS,
nullptr);
ASSERT_NE(nullptr, stream.get());
EXPECT_TRUE(stream->CanRead());
EXPECT_TRUE(stream->CanWrite());
EXPECT_TRUE(stream->CanSeek());
EXPECT_TRUE(stream->CanGetSize());
EXPECT_EQ(0u, stream->GetPosition());
EXPECT_EQ(0u, stream->GetSize());
EXPECT_TRUE(stream->CloseBlocking(nullptr));
}
TEST_F(FileStreamTest, Open_CreateAlways_Existing) {
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
base::FilePath path = temp_dir.GetPath().Append(base::FilePath{"test.dat"});
std::string data{"Lorem ipsum dolor sit amet ..."};
int data_size = data.size(); // I hate ints for data size...
ASSERT_EQ(data_size, base::WriteFile(path, data.data(), data_size));
StreamPtr stream = FileStream::Open(path,
Stream::AccessMode::READ_WRITE,
FileStream::Disposition::CREATE_ALWAYS,
nullptr);
ASSERT_NE(nullptr, stream.get());
EXPECT_TRUE(stream->CanRead());
EXPECT_TRUE(stream->CanWrite());
EXPECT_TRUE(stream->CanSeek());
EXPECT_TRUE(stream->CanGetSize());
EXPECT_EQ(0u, stream->GetPosition());
EXPECT_EQ(0u, stream->GetSize());
EXPECT_TRUE(stream->CloseBlocking(nullptr));
}
TEST_F(FileStreamTest, Open_CreateNewOnly_New) {
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
base::FilePath path = temp_dir.GetPath().Append(base::FilePath{"test.dat"});
StreamPtr stream = FileStream::Open(path,
Stream::AccessMode::READ_WRITE,
FileStream::Disposition::CREATE_NEW_ONLY,
nullptr);
ASSERT_NE(nullptr, stream.get());
EXPECT_TRUE(stream->CanRead());
EXPECT_TRUE(stream->CanWrite());
EXPECT_TRUE(stream->CanSeek());
EXPECT_TRUE(stream->CanGetSize());
EXPECT_EQ(0u, stream->GetPosition());
EXPECT_EQ(0u, stream->GetSize());
EXPECT_TRUE(stream->CloseBlocking(nullptr));
}
TEST_F(FileStreamTest, Open_CreateNewOnly_Existing) {
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
base::FilePath path = temp_dir.GetPath().Append(base::FilePath{"test.dat"});
std::string data{"Lorem ipsum dolor sit amet ..."};
int data_size = data.size(); // I hate ints for data size...
ASSERT_EQ(data_size, base::WriteFile(path, data.data(), data_size));
ErrorPtr error;
StreamPtr stream = FileStream::Open(path,
Stream::AccessMode::READ_WRITE,
FileStream::Disposition::CREATE_NEW_ONLY,
&error);
ASSERT_EQ(nullptr, stream.get());
EXPECT_EQ(errors::system::kDomain, error->GetDomain());
EXPECT_EQ("EEXIST", error->GetCode());
}
TEST_F(FileStreamTest, Open_TruncateExisting_New) {
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
base::FilePath path = temp_dir.GetPath().Append(base::FilePath{"test.dat"});
ErrorPtr error;
StreamPtr stream = FileStream::Open(
path,
Stream::AccessMode::READ_WRITE,
FileStream::Disposition::TRUNCATE_EXISTING,
&error);
ASSERT_EQ(nullptr, stream.get());
EXPECT_EQ(errors::system::kDomain, error->GetDomain());
EXPECT_EQ("ENOENT", error->GetCode());
}
TEST_F(FileStreamTest, Open_TruncateExisting_Existing) {
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
base::FilePath path = temp_dir.GetPath().Append(base::FilePath{"test.dat"});
std::string data{"Lorem ipsum dolor sit amet ..."};
int data_size = data.size(); // I hate ints for data size...
ASSERT_EQ(data_size, base::WriteFile(path, data.data(), data_size));
StreamPtr stream = FileStream::Open(
path,
Stream::AccessMode::READ_WRITE,
FileStream::Disposition::TRUNCATE_EXISTING,
nullptr);
ASSERT_NE(nullptr, stream.get());
EXPECT_TRUE(stream->CanRead());
EXPECT_TRUE(stream->CanWrite());
EXPECT_TRUE(stream->CanSeek());
EXPECT_TRUE(stream->CanGetSize());
EXPECT_EQ(0u, stream->GetPosition());
EXPECT_EQ(0u, stream->GetSize());
EXPECT_TRUE(stream->CloseBlocking(nullptr));
}
TEST_F(FileStreamTest, FromFileDescriptor_StdIn) {
StreamPtr stream =
FileStream::FromFileDescriptor(STDIN_FILENO, false, nullptr);
ASSERT_NE(nullptr, stream.get());
EXPECT_TRUE(stream->IsOpen());
EXPECT_TRUE(stream->CanRead());
EXPECT_FALSE(stream->CanSeek());
EXPECT_FALSE(stream->CanGetSize());
}
TEST_F(FileStreamTest, FromFileDescriptor_StdOut) {
StreamPtr stream =
FileStream::FromFileDescriptor(STDOUT_FILENO, false, nullptr);
ASSERT_NE(nullptr, stream.get());
EXPECT_TRUE(stream->IsOpen());
EXPECT_TRUE(stream->CanWrite());
EXPECT_FALSE(stream->CanSeek());
EXPECT_FALSE(stream->CanGetSize());
}
TEST_F(FileStreamTest, FromFileDescriptor_StdErr) {
StreamPtr stream =
FileStream::FromFileDescriptor(STDERR_FILENO, false, nullptr);
ASSERT_NE(nullptr, stream.get());
EXPECT_TRUE(stream->IsOpen());
EXPECT_TRUE(stream->CanWrite());
EXPECT_FALSE(stream->CanSeek());
EXPECT_FALSE(stream->CanGetSize());
}
TEST_F(FileStreamTest, FromFileDescriptor_ReadNonBlocking) {
int fds[2] = {-1, -1};
ASSERT_EQ(0, pipe(fds));
StreamPtr stream = FileStream::FromFileDescriptor(fds[0], true, nullptr);
ASSERT_NE(nullptr, stream.get());
EXPECT_TRUE(stream->IsOpen());
EXPECT_TRUE(stream->CanRead());
EXPECT_FALSE(stream->CanWrite());
EXPECT_FALSE(stream->CanSeek());
EXPECT_FALSE(stream->CanGetSize());
char buf[10];
size_t read = 0;
bool eos = true;
EXPECT_TRUE(stream->ReadNonBlocking(buf, sizeof(buf), &read, &eos, nullptr));
EXPECT_EQ(0, read);
EXPECT_FALSE(eos);
std::string data{"foo_bar"};
EXPECT_TRUE(base::WriteFileDescriptor(fds[1], data.data(), data.size()));
EXPECT_TRUE(stream->ReadNonBlocking(buf, sizeof(buf), &read, &eos, nullptr));
EXPECT_EQ(data.size(), read);
EXPECT_FALSE(eos);
EXPECT_EQ(data, (std::string{buf, read}));
EXPECT_TRUE(stream->ReadNonBlocking(buf, sizeof(buf), &read, &eos, nullptr));
EXPECT_EQ(0, read);
EXPECT_FALSE(eos);
close(fds[1]);
EXPECT_TRUE(stream->ReadNonBlocking(buf, sizeof(buf), &read, &eos, nullptr));
EXPECT_EQ(0, read);
EXPECT_TRUE(eos);
EXPECT_TRUE(stream->CloseBlocking(nullptr));
}
TEST_F(FileStreamTest, FromFileDescriptor_WriteNonBlocking) {
int fds[2] = {-1, -1};
ASSERT_EQ(0, pipe(fds));
StreamPtr stream = FileStream::FromFileDescriptor(fds[1], true, nullptr);
ASSERT_NE(nullptr, stream.get());
EXPECT_TRUE(stream->IsOpen());
EXPECT_FALSE(stream->CanRead());
EXPECT_TRUE(stream->CanWrite());
EXPECT_FALSE(stream->CanSeek());
EXPECT_FALSE(stream->CanGetSize());
// Pipe buffer is generally 64K, so 128K should be more than enough.
std::vector<char> buffer(128 * 1024);
base::RandBytes(buffer.data(), buffer.size());
size_t written = 0;
size_t total_size = 0;
// Fill the output buffer of the pipe until we can no longer write any data
// to it.
do {
ASSERT_TRUE(stream->WriteNonBlocking(buffer.data(), buffer.size(), &written,
nullptr));
total_size += written;
} while (written == buffer.size());
EXPECT_TRUE(stream->WriteNonBlocking(buffer.data(), buffer.size(), &written,
nullptr));
EXPECT_EQ(0, written);
std::vector<char> out_buffer(total_size);
EXPECT_TRUE(base::ReadFromFD(fds[0], out_buffer.data(), out_buffer.size()));
EXPECT_TRUE(stream->WriteNonBlocking(buffer.data(), buffer.size(), &written,
nullptr));
EXPECT_GT(written, 0);
out_buffer.resize(written);
EXPECT_TRUE(base::ReadFromFD(fds[0], out_buffer.data(), out_buffer.size()));
EXPECT_TRUE(std::equal(out_buffer.begin(), out_buffer.end(), buffer.begin()));
close(fds[0]);
EXPECT_TRUE(stream->CloseBlocking(nullptr));
}
TEST_F(FileStreamTest, FromFileDescriptor_ReadAsync) {
int fds[2] = {-1, -1};
bool succeeded = false;
bool failed = false;
char buffer[100];
base::MessageLoopForIO base_loop;
BaseMessageLoop brillo_loop{&base_loop};
brillo_loop.SetAsCurrent();
auto success_callback = [](bool* succeeded, char* buffer, size_t size) {
std::string data{buffer, buffer + size};
ASSERT_EQ("abracadabra", data);
*succeeded = true;
};
auto write_data_callback = [](int write_fd) {
std::string data{"abracadabra"};
EXPECT_TRUE(base::WriteFileDescriptor(write_fd, data.data(), data.size()));
};
ASSERT_EQ(0, pipe(fds));
StreamPtr stream = FileStream::FromFileDescriptor(fds[0], true, nullptr);
// Write to the pipe with a bit of delay.
brillo_loop.PostDelayedTask(
FROM_HERE,
base::Bind(write_data_callback, fds[1]),
base::TimeDelta::FromMilliseconds(10));
EXPECT_TRUE(stream->ReadAsync(
buffer, 100, base::Bind(success_callback, &succeeded, buffer),
base::Bind(&SetToTrue, &failed), nullptr));
auto end_condition = [](bool* failed, bool* succeeded) {
return *failed || *succeeded;
};
MessageLoopRunUntil(&brillo_loop,
base::TimeDelta::FromSeconds(1),
base::Bind(end_condition,
base::Unretained(&failed),
base::Unretained(&succeeded)));
EXPECT_TRUE(succeeded);
EXPECT_FALSE(failed);
close(fds[1]);
EXPECT_TRUE(stream->CloseBlocking(nullptr));
}
TEST_F(FileStreamTest, FromFileDescriptor_WriteAsync) {
int fds[2] = {-1, -1};
bool succeeded = false;
bool failed = false;
const std::string data{"abracadabra"};
base::MessageLoopForIO base_loop;
BaseMessageLoop brillo_loop{&base_loop};
brillo_loop.SetAsCurrent();
ASSERT_EQ(0, pipe(fds));
auto success_callback = [](bool* succeeded,
const std::string& data,
int read_fd,
size_t /* size */) {
char buffer[100];
EXPECT_TRUE(base::ReadFromFD(read_fd, buffer, data.size()));
EXPECT_EQ(data, (std::string{buffer, buffer + data.size()}));
*succeeded = true;
};
StreamPtr stream = FileStream::FromFileDescriptor(fds[1], true, nullptr);
EXPECT_TRUE(stream->WriteAsync(
data.data(),
data.size(),
base::Bind(success_callback, base::Unretained(&succeeded), data, fds[0]),
base::Bind(&SetToTrue, &failed),
nullptr));
auto end_condition = [](bool* failed, bool* succeeded) {
return *failed || *succeeded;
};
MessageLoopRunUntil(&brillo_loop,
base::TimeDelta::FromSeconds(1),
base::Bind(end_condition,
base::Unretained(&failed),
base::Unretained(&succeeded)));
EXPECT_TRUE(succeeded);
EXPECT_FALSE(failed);
close(fds[0]);
EXPECT_TRUE(stream->CloseBlocking(nullptr));
}
} // namespace brillo
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