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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "remoting/host/file_transfer/buffered_file_writer.h"
#include "base/functional/bind.h"
#include "base/test/task_environment.h"
#include "remoting/host/file_transfer/fake_file_operations.h"
#include "remoting/host/file_transfer/test_byte_vector_utils.h"
#include "remoting/protocol/file_transfer_helpers.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace remoting {
class BufferedFileWriterTest : public testing::Test {
public:
BufferedFileWriterTest();
~BufferedFileWriterTest() override;
// testing::Test implementation.
void SetUp() override;
void TearDown() override;
protected:
const base::FilePath kTestFilename{FILE_PATH_LITERAL("test-file.txt")};
const std::vector<std::uint8_t> kTestDataOne =
ByteArrayFrom("this is the first test string");
const std::vector<std::uint8_t> kTestDataTwo =
ByteArrayFrom("this is the second test string");
const std::vector<std::uint8_t> kTestDataThree =
ByteArrayFrom("this is the third test string");
void OnCompleted();
void OnError(protocol::FileTransfer_Error error);
bool complete_called_ = false;
std::optional<protocol::FileTransfer_Error> error_ = std::nullopt;
base::test::TaskEnvironment task_environment_;
};
BufferedFileWriterTest::BufferedFileWriterTest() = default;
BufferedFileWriterTest::~BufferedFileWriterTest() = default;
void BufferedFileWriterTest::SetUp() {}
void BufferedFileWriterTest::TearDown() {}
void BufferedFileWriterTest::OnCompleted() {
ASSERT_TRUE(!complete_called_ && !error_);
complete_called_ = true;
}
void BufferedFileWriterTest::OnError(protocol::FileTransfer_Error error) {
ASSERT_TRUE(!complete_called_ && !error_);
error_ = std::move(error);
}
// Verifies BufferedFileWriter creates, writes to, and closes a Writer
// without errors.
TEST_F(BufferedFileWriterTest, WritesThreeChunks) {
FakeFileOperations::TestIo test_io;
auto file_operations = std::make_unique<FakeFileOperations>(&test_io);
BufferedFileWriter writer(
file_operations->CreateWriter(),
base::BindOnce(
&BufferedFileWriterTest_WritesThreeChunks_Test::OnCompleted,
base::Unretained(this)),
base::BindOnce(&BufferedFileWriterTest_WritesThreeChunks_Test::OnError,
base::Unretained(this)));
writer.Start(kTestFilename);
task_environment_.RunUntilIdle();
writer.Write(kTestDataOne);
task_environment_.RunUntilIdle();
writer.Write(kTestDataTwo);
task_environment_.RunUntilIdle();
writer.Write(kTestDataThree);
task_environment_.RunUntilIdle();
writer.Close();
ASSERT_EQ(false, complete_called_);
task_environment_.RunUntilIdle();
ASSERT_EQ(true, complete_called_);
ASSERT_EQ(1ul, test_io.files_written.size());
ASSERT_EQ(false, test_io.files_written[0].failed);
std::vector<std::vector<std::uint8_t>> expected_chunks = {
kTestDataOne, kTestDataTwo, kTestDataThree};
ASSERT_EQ(expected_chunks, test_io.files_written[0].chunks);
}
// Verifies BufferedFileWriter properly queues up file operations.
TEST_F(BufferedFileWriterTest, QueuesOperations) {
FakeFileOperations::TestIo test_io;
auto file_operations = std::make_unique<FakeFileOperations>(&test_io);
BufferedFileWriter writer(
file_operations->CreateWriter(),
base::BindOnce(&BufferedFileWriterTest_QueuesOperations_Test::OnCompleted,
base::Unretained(this)),
base::BindOnce(&BufferedFileWriterTest_QueuesOperations_Test::OnError,
base::Unretained(this)));
// FakeFileWriter will CHECK that BufferedFileWriter properly serializes
// file operations.
writer.Start(kTestFilename);
writer.Write(kTestDataOne);
writer.Write(kTestDataTwo);
writer.Write(kTestDataThree);
writer.Close();
ASSERT_EQ(false, complete_called_);
task_environment_.RunUntilIdle();
ASSERT_EQ(true, complete_called_);
ASSERT_EQ(1ul, test_io.files_written.size());
ASSERT_EQ(false, test_io.files_written[0].failed);
std::vector<std::vector<std::uint8_t>> expected_chunks = {
kTestDataOne, kTestDataTwo, kTestDataThree};
ASSERT_EQ(expected_chunks, test_io.files_written[0].chunks);
}
// Verifies BufferedFileWriter calls the error callback in the event of an
// error.
TEST_F(BufferedFileWriterTest, HandlesWriteError) {
FakeFileOperations::TestIo test_io;
auto file_operations = std::make_unique<FakeFileOperations>(&test_io);
BufferedFileWriter writer(
file_operations->CreateWriter(),
base::BindOnce(
&BufferedFileWriterTest_HandlesWriteError_Test::OnCompleted,
base::Unretained(this)),
base::BindOnce(&BufferedFileWriterTest_HandlesWriteError_Test::OnError,
base::Unretained(this)));
protocol::FileTransfer_Error fake_error = protocol::MakeFileTransferError(
FROM_HERE, protocol::FileTransfer_Error_Type_IO_ERROR);
writer.Start(kTestFilename);
writer.Write(kTestDataOne);
writer.Write(kTestDataTwo);
task_environment_.RunUntilIdle();
test_io.io_error = fake_error;
writer.Write(kTestDataThree);
writer.Close();
task_environment_.RunUntilIdle();
ASSERT_TRUE(error_);
ASSERT_EQ(fake_error.SerializeAsString(), error_->SerializeAsString());
ASSERT_EQ(1ul, test_io.files_written.size());
ASSERT_EQ(true, test_io.files_written[0].failed);
std::vector<std::vector<std::uint8_t>> expected_chunks = {kTestDataOne,
kTestDataTwo};
ASSERT_EQ(expected_chunks, test_io.files_written[0].chunks);
}
// Verifies canceling BufferedFileWriter cancels the underlying writer.
TEST_F(BufferedFileWriterTest, CancelsWriter) {
FakeFileOperations::TestIo test_io;
auto file_operations = std::make_unique<FakeFileOperations>(&test_io);
{
BufferedFileWriter writer(
file_operations->CreateWriter(),
base::BindOnce(&BufferedFileWriterTest_CancelsWriter_Test::OnCompleted,
base::Unretained(this)),
base::BindOnce(&BufferedFileWriterTest_CancelsWriter_Test::OnError,
base::Unretained(this)));
protocol::FileTransfer_Error fake_error = protocol::MakeFileTransferError(
FROM_HERE, protocol::FileTransfer_Error_Type_IO_ERROR);
writer.Start(kTestFilename);
writer.Write(kTestDataOne);
writer.Write(kTestDataTwo);
task_environment_.RunUntilIdle();
writer.Write(kTestDataThree);
}
task_environment_.RunUntilIdle();
ASSERT_TRUE(!complete_called_ && !error_);
ASSERT_EQ(1ul, test_io.files_written.size());
ASSERT_EQ(true, test_io.files_written[0].failed);
std::vector<std::vector<std::uint8_t>> expected_chunks = {kTestDataOne,
kTestDataTwo};
ASSERT_EQ(expected_chunks, test_io.files_written[0].chunks);
}
} // namespace remoting
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