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file_stream_unittest.cc
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file_stream_unittest.cc
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// Copyright (c) 2012 The Chromium 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 "net/base/file_stream.h"
#include "base/bind.h"
#include "base/callback.h"
#include "base/file_util.h"
#include "base/message_loop/message_loop.h"
#include "base/message_loop/message_loop_proxy.h"
#include "base/path_service.h"
#include "base/platform_file.h"
#include "base/run_loop.h"
#include "base/synchronization/waitable_event.h"
#include "base/test/test_timeouts.h"
#include "net/base/capturing_net_log.h"
#include "net/base/io_buffer.h"
#include "net/base/net_errors.h"
#include "net/base/test_completion_callback.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/platform_test.h"
#if defined(OS_ANDROID)
#include "base/test/test_file_util.h"
#endif
namespace net {
namespace {
const char kTestData[] = "0123456789";
const int kTestDataSize = arraysize(kTestData) - 1;
// Creates an IOBufferWithSize that contains the kTestDataSize.
IOBufferWithSize* CreateTestDataBuffer() {
IOBufferWithSize* buf = new IOBufferWithSize(kTestDataSize);
memcpy(buf->data(), kTestData, kTestDataSize);
return buf;
}
} // namespace
class FileStreamTest : public PlatformTest {
public:
virtual void SetUp() {
PlatformTest::SetUp();
base::CreateTemporaryFile(&temp_file_path_);
file_util::WriteFile(temp_file_path_, kTestData, kTestDataSize);
}
virtual void TearDown() {
EXPECT_TRUE(base::DeleteFile(temp_file_path_, false));
// FileStreamContexts must be asynchronously closed on the file task runner
// before they can be deleted. Pump the RunLoop to avoid leaks.
base::RunLoop().RunUntilIdle();
PlatformTest::TearDown();
}
const base::FilePath temp_file_path() const { return temp_file_path_; }
private:
base::FilePath temp_file_path_;
};
namespace {
TEST_F(FileStreamTest, BasicOpenClose) {
base::PlatformFile file = base::kInvalidPlatformFileValue;
{
FileStream stream(NULL, base::MessageLoopProxy::current());
int rv = stream.OpenSync(temp_file_path(),
base::PLATFORM_FILE_OPEN | base::PLATFORM_FILE_READ);
EXPECT_EQ(OK, rv);
EXPECT_TRUE(stream.IsOpen());
file = stream.GetPlatformFileForTesting();
}
EXPECT_NE(base::kInvalidPlatformFileValue, file);
base::PlatformFileInfo info;
// The file should be closed.
EXPECT_FALSE(base::GetPlatformFileInfo(file, &info));
}
TEST_F(FileStreamTest, BasicOpenExplicitClose) {
base::PlatformFile file = base::kInvalidPlatformFileValue;
FileStream stream(NULL);
int rv = stream.OpenSync(temp_file_path(),
base::PLATFORM_FILE_OPEN | base::PLATFORM_FILE_READ);
EXPECT_EQ(OK, rv);
EXPECT_TRUE(stream.IsOpen());
file = stream.GetPlatformFileForTesting();
EXPECT_NE(base::kInvalidPlatformFileValue, file);
EXPECT_EQ(OK, stream.CloseSync());
EXPECT_FALSE(stream.IsOpen());
base::PlatformFileInfo info;
// The file should be closed.
EXPECT_FALSE(base::GetPlatformFileInfo(file, &info));
}
TEST_F(FileStreamTest, AsyncOpenExplicitClose) {
base::PlatformFile file = base::kInvalidPlatformFileValue;
TestCompletionCallback callback;
FileStream stream(NULL);
int flags = base::PLATFORM_FILE_OPEN |
base::PLATFORM_FILE_READ |
base::PLATFORM_FILE_ASYNC;
int rv = stream.Open(temp_file_path(), flags, callback.callback());
EXPECT_EQ(ERR_IO_PENDING, rv);
EXPECT_EQ(OK, callback.WaitForResult());
EXPECT_TRUE(stream.IsOpen());
file = stream.GetPlatformFileForTesting();
EXPECT_EQ(ERR_IO_PENDING, stream.Close(callback.callback()));
EXPECT_EQ(OK, callback.WaitForResult());
EXPECT_FALSE(stream.IsOpen());
base::PlatformFileInfo info;
// The file should be closed.
EXPECT_FALSE(base::GetPlatformFileInfo(file, &info));
}
TEST_F(FileStreamTest, AsyncOpenExplicitCloseOrphaned) {
base::PlatformFile file = base::kInvalidPlatformFileValue;
TestCompletionCallback callback;
base::PlatformFileInfo info;
scoped_ptr<FileStream> stream(new FileStream(
NULL, base::MessageLoopProxy::current()));
int flags = base::PLATFORM_FILE_OPEN |
base::PLATFORM_FILE_READ |
base::PLATFORM_FILE_ASYNC;
int rv = stream->Open(temp_file_path(), flags, callback.callback());
EXPECT_EQ(ERR_IO_PENDING, rv);
EXPECT_EQ(OK, callback.WaitForResult());
EXPECT_TRUE(stream->IsOpen());
file = stream->GetPlatformFileForTesting();
EXPECT_EQ(ERR_IO_PENDING, stream->Close(callback.callback()));
stream.reset();
// File isn't actually closed yet.
EXPECT_TRUE(base::GetPlatformFileInfo(file, &info));
base::RunLoop runloop;
runloop.RunUntilIdle();
// The file should now be closed, though the callback has not been called.
EXPECT_FALSE(base::GetPlatformFileInfo(file, &info));
}
TEST_F(FileStreamTest, FileHandleNotLeftOpen) {
bool created = false;
ASSERT_EQ(kTestDataSize,
file_util::WriteFile(temp_file_path(), kTestData, kTestDataSize));
int flags = base::PLATFORM_FILE_OPEN_ALWAYS | base::PLATFORM_FILE_READ;
base::PlatformFile file = base::CreatePlatformFile(
temp_file_path(), flags, &created, NULL);
{
// Seek to the beginning of the file and read.
FileStream read_stream(file, flags, NULL,
base::MessageLoopProxy::current());
EXPECT_TRUE(read_stream.IsOpen());
}
EXPECT_NE(base::kInvalidPlatformFileValue, file);
base::PlatformFileInfo info;
// The file should be closed.
EXPECT_FALSE(base::GetPlatformFileInfo(file, &info));
}
// Test the use of FileStream with a file handle provided at construction.
TEST_F(FileStreamTest, UseFileHandle) {
bool created = false;
// 1. Test reading with a file handle.
ASSERT_EQ(kTestDataSize,
file_util::WriteFile(temp_file_path(), kTestData, kTestDataSize));
int flags = base::PLATFORM_FILE_OPEN_ALWAYS | base::PLATFORM_FILE_READ;
base::PlatformFile file = base::CreatePlatformFile(
temp_file_path(), flags, &created, NULL);
// Seek to the beginning of the file and read.
scoped_ptr<FileStream> read_stream(
new FileStream(file, flags, NULL, base::MessageLoopProxy::current()));
ASSERT_EQ(0, read_stream->SeekSync(FROM_BEGIN, 0));
ASSERT_EQ(kTestDataSize, read_stream->Available());
// Read into buffer and compare.
char buffer[kTestDataSize];
ASSERT_EQ(kTestDataSize,
read_stream->ReadSync(buffer, kTestDataSize));
ASSERT_EQ(0, memcmp(kTestData, buffer, kTestDataSize));
read_stream.reset();
// 2. Test writing with a file handle.
base::DeleteFile(temp_file_path(), false);
flags = base::PLATFORM_FILE_OPEN_ALWAYS | base::PLATFORM_FILE_WRITE;
file = base::CreatePlatformFile(temp_file_path(), flags, &created, NULL);
scoped_ptr<FileStream> write_stream(
new FileStream(file, flags, NULL, base::MessageLoopProxy::current()));
ASSERT_EQ(0, write_stream->SeekSync(FROM_BEGIN, 0));
ASSERT_EQ(kTestDataSize,
write_stream->WriteSync(kTestData, kTestDataSize));
write_stream.reset();
// Read into buffer and compare to make sure the handle worked fine.
ASSERT_EQ(kTestDataSize,
base::ReadFile(temp_file_path(), buffer, kTestDataSize));
ASSERT_EQ(0, memcmp(kTestData, buffer, kTestDataSize));
}
TEST_F(FileStreamTest, UseClosedStream) {
FileStream stream(NULL, base::MessageLoopProxy::current());
EXPECT_FALSE(stream.IsOpen());
// Try seeking...
int64 new_offset = stream.SeekSync(FROM_BEGIN, 5);
EXPECT_EQ(ERR_UNEXPECTED, new_offset);
// Try available...
int64 avail = stream.Available();
EXPECT_EQ(ERR_UNEXPECTED, avail);
// Try reading...
char buf[10];
int rv = stream.ReadSync(buf, arraysize(buf));
EXPECT_EQ(ERR_UNEXPECTED, rv);
}
TEST_F(FileStreamTest, BasicRead) {
int64 file_size;
bool ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
FileStream stream(NULL, base::MessageLoopProxy::current());
int flags = base::PLATFORM_FILE_OPEN |
base::PLATFORM_FILE_READ;
int rv = stream.OpenSync(temp_file_path(), flags);
EXPECT_EQ(OK, rv);
int64 total_bytes_avail = stream.Available();
EXPECT_EQ(file_size, total_bytes_avail);
int total_bytes_read = 0;
std::string data_read;
for (;;) {
char buf[4];
rv = stream.ReadSync(buf, arraysize(buf));
EXPECT_LE(0, rv);
if (rv <= 0)
break;
total_bytes_read += rv;
data_read.append(buf, rv);
}
EXPECT_EQ(file_size, total_bytes_read);
EXPECT_EQ(kTestData, data_read);
}
TEST_F(FileStreamTest, AsyncRead) {
int64 file_size;
bool ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
FileStream stream(NULL, base::MessageLoopProxy::current());
int flags = base::PLATFORM_FILE_OPEN |
base::PLATFORM_FILE_READ |
base::PLATFORM_FILE_ASYNC;
TestCompletionCallback callback;
int rv = stream.Open(temp_file_path(), flags, callback.callback());
EXPECT_EQ(ERR_IO_PENDING, rv);
EXPECT_EQ(OK, callback.WaitForResult());
int64 total_bytes_avail = stream.Available();
EXPECT_EQ(file_size, total_bytes_avail);
int total_bytes_read = 0;
std::string data_read;
for (;;) {
scoped_refptr<IOBufferWithSize> buf = new IOBufferWithSize(4);
rv = stream.Read(buf.get(), buf->size(), callback.callback());
if (rv == ERR_IO_PENDING)
rv = callback.WaitForResult();
EXPECT_LE(0, rv);
if (rv <= 0)
break;
total_bytes_read += rv;
data_read.append(buf->data(), rv);
}
EXPECT_EQ(file_size, total_bytes_read);
EXPECT_EQ(kTestData, data_read);
}
TEST_F(FileStreamTest, AsyncRead_EarlyDelete) {
int64 file_size;
bool ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
scoped_ptr<FileStream> stream(
new FileStream(NULL, base::MessageLoopProxy::current()));
int flags = base::PLATFORM_FILE_OPEN |
base::PLATFORM_FILE_READ |
base::PLATFORM_FILE_ASYNC;
TestCompletionCallback callback;
int rv = stream->Open(temp_file_path(), flags, callback.callback());
EXPECT_EQ(ERR_IO_PENDING, rv);
EXPECT_EQ(OK, callback.WaitForResult());
int64 total_bytes_avail = stream->Available();
EXPECT_EQ(file_size, total_bytes_avail);
scoped_refptr<IOBufferWithSize> buf = new IOBufferWithSize(4);
rv = stream->Read(buf.get(), buf->size(), callback.callback());
stream.reset(); // Delete instead of closing it.
if (rv < 0) {
EXPECT_EQ(ERR_IO_PENDING, rv);
// The callback should not be called if the request is cancelled.
base::RunLoop().RunUntilIdle();
EXPECT_FALSE(callback.have_result());
} else {
EXPECT_EQ(std::string(kTestData, rv), std::string(buf->data(), rv));
}
}
TEST_F(FileStreamTest, BasicRead_FromOffset) {
int64 file_size;
bool ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
FileStream stream(NULL, base::MessageLoopProxy::current());
int flags = base::PLATFORM_FILE_OPEN |
base::PLATFORM_FILE_READ;
int rv = stream.OpenSync(temp_file_path(), flags);
EXPECT_EQ(OK, rv);
const int64 kOffset = 3;
int64 new_offset = stream.SeekSync(FROM_BEGIN, kOffset);
EXPECT_EQ(kOffset, new_offset);
int64 total_bytes_avail = stream.Available();
EXPECT_EQ(file_size - kOffset, total_bytes_avail);
int64 total_bytes_read = 0;
std::string data_read;
for (;;) {
char buf[4];
rv = stream.ReadSync(buf, arraysize(buf));
EXPECT_LE(0, rv);
if (rv <= 0)
break;
total_bytes_read += rv;
data_read.append(buf, rv);
}
EXPECT_EQ(file_size - kOffset, total_bytes_read);
EXPECT_TRUE(data_read == kTestData + kOffset);
EXPECT_EQ(kTestData + kOffset, data_read);
}
TEST_F(FileStreamTest, AsyncRead_FromOffset) {
int64 file_size;
bool ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
FileStream stream(NULL, base::MessageLoopProxy::current());
int flags = base::PLATFORM_FILE_OPEN |
base::PLATFORM_FILE_READ |
base::PLATFORM_FILE_ASYNC;
TestCompletionCallback callback;
int rv = stream.Open(temp_file_path(), flags, callback.callback());
EXPECT_EQ(ERR_IO_PENDING, rv);
EXPECT_EQ(OK, callback.WaitForResult());
TestInt64CompletionCallback callback64;
const int64 kOffset = 3;
rv = stream.Seek(FROM_BEGIN, kOffset, callback64.callback());
ASSERT_EQ(ERR_IO_PENDING, rv);
int64 new_offset = callback64.WaitForResult();
EXPECT_EQ(kOffset, new_offset);
int64 total_bytes_avail = stream.Available();
EXPECT_EQ(file_size - kOffset, total_bytes_avail);
int total_bytes_read = 0;
std::string data_read;
for (;;) {
scoped_refptr<IOBufferWithSize> buf = new IOBufferWithSize(4);
rv = stream.Read(buf.get(), buf->size(), callback.callback());
if (rv == ERR_IO_PENDING)
rv = callback.WaitForResult();
EXPECT_LE(0, rv);
if (rv <= 0)
break;
total_bytes_read += rv;
data_read.append(buf->data(), rv);
}
EXPECT_EQ(file_size - kOffset, total_bytes_read);
EXPECT_EQ(kTestData + kOffset, data_read);
}
TEST_F(FileStreamTest, SeekAround) {
FileStream stream(NULL, base::MessageLoopProxy::current());
int flags = base::PLATFORM_FILE_OPEN |
base::PLATFORM_FILE_READ;
int rv = stream.OpenSync(temp_file_path(), flags);
EXPECT_EQ(OK, rv);
const int64 kOffset = 3;
int64 new_offset = stream.SeekSync(FROM_BEGIN, kOffset);
EXPECT_EQ(kOffset, new_offset);
new_offset = stream.SeekSync(FROM_CURRENT, kOffset);
EXPECT_EQ(2 * kOffset, new_offset);
new_offset = stream.SeekSync(FROM_CURRENT, -kOffset);
EXPECT_EQ(kOffset, new_offset);
const int kTestDataLen = arraysize(kTestData) - 1;
new_offset = stream.SeekSync(FROM_END, -kTestDataLen);
EXPECT_EQ(0, new_offset);
}
TEST_F(FileStreamTest, AsyncSeekAround) {
FileStream stream(NULL, base::MessageLoopProxy::current());
int flags = base::PLATFORM_FILE_OPEN |
base::PLATFORM_FILE_ASYNC |
base::PLATFORM_FILE_READ;
TestCompletionCallback callback;
int rv = stream.Open(temp_file_path(), flags, callback.callback());
EXPECT_EQ(ERR_IO_PENDING, rv);
EXPECT_EQ(OK, callback.WaitForResult());
TestInt64CompletionCallback callback64;
const int64 kOffset = 3;
rv = stream.Seek(FROM_BEGIN, kOffset, callback64.callback());
ASSERT_EQ(ERR_IO_PENDING, rv);
int64 new_offset = callback64.WaitForResult();
EXPECT_EQ(kOffset, new_offset);
rv = stream.Seek(FROM_CURRENT, kOffset, callback64.callback());
ASSERT_EQ(ERR_IO_PENDING, rv);
new_offset = callback64.WaitForResult();
EXPECT_EQ(2 * kOffset, new_offset);
rv = stream.Seek(FROM_CURRENT, -kOffset, callback64.callback());
ASSERT_EQ(ERR_IO_PENDING, rv);
new_offset = callback64.WaitForResult();
EXPECT_EQ(kOffset, new_offset);
const int kTestDataLen = arraysize(kTestData) - 1;
rv = stream.Seek(FROM_END, -kTestDataLen, callback64.callback());
ASSERT_EQ(ERR_IO_PENDING, rv);
new_offset = callback64.WaitForResult();
EXPECT_EQ(0, new_offset);
}
TEST_F(FileStreamTest, BasicWrite) {
scoped_ptr<FileStream> stream(
new FileStream(NULL, base::MessageLoopProxy::current()));
int flags = base::PLATFORM_FILE_CREATE_ALWAYS |
base::PLATFORM_FILE_WRITE;
int rv = stream->OpenSync(temp_file_path(), flags);
EXPECT_EQ(OK, rv);
int64 file_size;
bool ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
EXPECT_EQ(0, file_size);
rv = stream->WriteSync(kTestData, kTestDataSize);
EXPECT_EQ(kTestDataSize, rv);
stream.reset();
ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
EXPECT_EQ(kTestDataSize, file_size);
}
TEST_F(FileStreamTest, AsyncWrite) {
FileStream stream(NULL, base::MessageLoopProxy::current());
int flags = base::PLATFORM_FILE_CREATE_ALWAYS |
base::PLATFORM_FILE_WRITE |
base::PLATFORM_FILE_ASYNC;
TestCompletionCallback callback;
int rv = stream.Open(temp_file_path(), flags, callback.callback());
EXPECT_EQ(ERR_IO_PENDING, rv);
EXPECT_EQ(OK, callback.WaitForResult());
int64 file_size;
bool ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
EXPECT_EQ(0, file_size);
int total_bytes_written = 0;
scoped_refptr<IOBufferWithSize> buf = CreateTestDataBuffer();
scoped_refptr<DrainableIOBuffer> drainable =
new DrainableIOBuffer(buf.get(), buf->size());
while (total_bytes_written != kTestDataSize) {
rv = stream.Write(
drainable.get(), drainable->BytesRemaining(), callback.callback());
if (rv == ERR_IO_PENDING)
rv = callback.WaitForResult();
EXPECT_LT(0, rv);
if (rv <= 0)
break;
drainable->DidConsume(rv);
total_bytes_written += rv;
}
ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
EXPECT_EQ(file_size, total_bytes_written);
}
TEST_F(FileStreamTest, AsyncWrite_EarlyDelete) {
scoped_ptr<FileStream> stream(
new FileStream(NULL, base::MessageLoopProxy::current()));
int flags = base::PLATFORM_FILE_CREATE_ALWAYS |
base::PLATFORM_FILE_WRITE |
base::PLATFORM_FILE_ASYNC;
TestCompletionCallback callback;
int rv = stream->Open(temp_file_path(), flags, callback.callback());
EXPECT_EQ(ERR_IO_PENDING, rv);
EXPECT_EQ(OK, callback.WaitForResult());
int64 file_size;
bool ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
EXPECT_EQ(0, file_size);
scoped_refptr<IOBufferWithSize> buf = CreateTestDataBuffer();
rv = stream->Write(buf.get(), buf->size(), callback.callback());
stream.reset();
if (rv < 0) {
EXPECT_EQ(ERR_IO_PENDING, rv);
// The callback should not be called if the request is cancelled.
base::RunLoop().RunUntilIdle();
EXPECT_FALSE(callback.have_result());
} else {
ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
EXPECT_EQ(file_size, rv);
}
}
TEST_F(FileStreamTest, BasicWrite_FromOffset) {
scoped_ptr<FileStream> stream(
new FileStream(NULL, base::MessageLoopProxy::current()));
int flags = base::PLATFORM_FILE_OPEN |
base::PLATFORM_FILE_WRITE;
int rv = stream->OpenSync(temp_file_path(), flags);
EXPECT_EQ(OK, rv);
int64 file_size;
bool ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
EXPECT_EQ(kTestDataSize, file_size);
const int64 kOffset = 0;
int64 new_offset = stream->SeekSync(FROM_END, kOffset);
EXPECT_EQ(kTestDataSize, new_offset);
rv = stream->WriteSync(kTestData, kTestDataSize);
EXPECT_EQ(kTestDataSize, rv);
stream.reset();
ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
EXPECT_EQ(kTestDataSize * 2, file_size);
}
TEST_F(FileStreamTest, AsyncWrite_FromOffset) {
int64 file_size;
bool ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
FileStream stream(NULL, base::MessageLoopProxy::current());
int flags = base::PLATFORM_FILE_OPEN |
base::PLATFORM_FILE_WRITE |
base::PLATFORM_FILE_ASYNC;
TestCompletionCallback callback;
int rv = stream.Open(temp_file_path(), flags, callback.callback());
EXPECT_EQ(ERR_IO_PENDING, rv);
EXPECT_EQ(OK, callback.WaitForResult());
TestInt64CompletionCallback callback64;
const int64 kOffset = 0;
rv = stream.Seek(FROM_END, kOffset, callback64.callback());
ASSERT_EQ(ERR_IO_PENDING, rv);
int64 new_offset = callback64.WaitForResult();
EXPECT_EQ(kTestDataSize, new_offset);
int total_bytes_written = 0;
scoped_refptr<IOBufferWithSize> buf = CreateTestDataBuffer();
scoped_refptr<DrainableIOBuffer> drainable =
new DrainableIOBuffer(buf.get(), buf->size());
while (total_bytes_written != kTestDataSize) {
rv = stream.Write(
drainable.get(), drainable->BytesRemaining(), callback.callback());
if (rv == ERR_IO_PENDING)
rv = callback.WaitForResult();
EXPECT_LT(0, rv);
if (rv <= 0)
break;
drainable->DidConsume(rv);
total_bytes_written += rv;
}
ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
EXPECT_EQ(file_size, kTestDataSize * 2);
}
TEST_F(FileStreamTest, BasicReadWrite) {
int64 file_size;
bool ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
scoped_ptr<FileStream> stream(
new FileStream(NULL, base::MessageLoopProxy::current()));
int flags = base::PLATFORM_FILE_OPEN |
base::PLATFORM_FILE_READ |
base::PLATFORM_FILE_WRITE;
int rv = stream->OpenSync(temp_file_path(), flags);
EXPECT_EQ(OK, rv);
int64 total_bytes_avail = stream->Available();
EXPECT_EQ(file_size, total_bytes_avail);
int total_bytes_read = 0;
std::string data_read;
for (;;) {
char buf[4];
rv = stream->ReadSync(buf, arraysize(buf));
EXPECT_LE(0, rv);
if (rv <= 0)
break;
total_bytes_read += rv;
data_read.append(buf, rv);
}
EXPECT_EQ(file_size, total_bytes_read);
EXPECT_TRUE(data_read == kTestData);
rv = stream->WriteSync(kTestData, kTestDataSize);
EXPECT_EQ(kTestDataSize, rv);
stream.reset();
ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
EXPECT_EQ(kTestDataSize * 2, file_size);
}
TEST_F(FileStreamTest, BasicWriteRead) {
int64 file_size;
bool ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
scoped_ptr<FileStream> stream(
new FileStream(NULL, base::MessageLoopProxy::current()));
int flags = base::PLATFORM_FILE_OPEN |
base::PLATFORM_FILE_READ |
base::PLATFORM_FILE_WRITE;
int rv = stream->OpenSync(temp_file_path(), flags);
EXPECT_EQ(OK, rv);
int64 total_bytes_avail = stream->Available();
EXPECT_EQ(file_size, total_bytes_avail);
int64 offset = stream->SeekSync(FROM_END, 0);
EXPECT_EQ(offset, file_size);
rv = stream->WriteSync(kTestData, kTestDataSize);
EXPECT_EQ(kTestDataSize, rv);
offset = stream->SeekSync(FROM_BEGIN, 0);
EXPECT_EQ(0, offset);
int64 total_bytes_read = 0;
std::string data_read;
for (;;) {
char buf[4];
rv = stream->ReadSync(buf, arraysize(buf));
EXPECT_LE(0, rv);
if (rv <= 0)
break;
total_bytes_read += rv;
data_read.append(buf, rv);
}
stream.reset();
ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
EXPECT_EQ(kTestDataSize * 2, file_size);
EXPECT_EQ(kTestDataSize * 2, total_bytes_read);
const std::string kExpectedFileData =
std::string(kTestData) + std::string(kTestData);
EXPECT_EQ(kExpectedFileData, data_read);
}
TEST_F(FileStreamTest, BasicAsyncReadWrite) {
int64 file_size;
bool ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
scoped_ptr<FileStream> stream(
new FileStream(NULL, base::MessageLoopProxy::current()));
int flags = base::PLATFORM_FILE_OPEN |
base::PLATFORM_FILE_READ |
base::PLATFORM_FILE_WRITE |
base::PLATFORM_FILE_ASYNC;
TestCompletionCallback callback;
int rv = stream->Open(temp_file_path(), flags, callback.callback());
EXPECT_EQ(ERR_IO_PENDING, rv);
EXPECT_EQ(OK, callback.WaitForResult());
int64 total_bytes_avail = stream->Available();
EXPECT_EQ(file_size, total_bytes_avail);
int64 total_bytes_read = 0;
std::string data_read;
for (;;) {
scoped_refptr<IOBufferWithSize> buf = new IOBufferWithSize(4);
rv = stream->Read(buf.get(), buf->size(), callback.callback());
if (rv == ERR_IO_PENDING)
rv = callback.WaitForResult();
EXPECT_LE(0, rv);
if (rv <= 0)
break;
total_bytes_read += rv;
data_read.append(buf->data(), rv);
}
EXPECT_EQ(file_size, total_bytes_read);
EXPECT_TRUE(data_read == kTestData);
int total_bytes_written = 0;
scoped_refptr<IOBufferWithSize> buf = CreateTestDataBuffer();
scoped_refptr<DrainableIOBuffer> drainable =
new DrainableIOBuffer(buf.get(), buf->size());
while (total_bytes_written != kTestDataSize) {
rv = stream->Write(
drainable.get(), drainable->BytesRemaining(), callback.callback());
if (rv == ERR_IO_PENDING)
rv = callback.WaitForResult();
EXPECT_LT(0, rv);
if (rv <= 0)
break;
drainable->DidConsume(rv);
total_bytes_written += rv;
}
stream.reset();
ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
EXPECT_EQ(kTestDataSize * 2, file_size);
}
TEST_F(FileStreamTest, BasicAsyncWriteRead) {
int64 file_size;
bool ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
scoped_ptr<FileStream> stream(
new FileStream(NULL, base::MessageLoopProxy::current()));
int flags = base::PLATFORM_FILE_OPEN |
base::PLATFORM_FILE_READ |
base::PLATFORM_FILE_WRITE |
base::PLATFORM_FILE_ASYNC;
TestCompletionCallback callback;
int rv = stream->Open(temp_file_path(), flags, callback.callback());
EXPECT_EQ(ERR_IO_PENDING, rv);
EXPECT_EQ(OK, callback.WaitForResult());
int64 total_bytes_avail = stream->Available();
EXPECT_EQ(file_size, total_bytes_avail);
TestInt64CompletionCallback callback64;
rv = stream->Seek(FROM_END, 0, callback64.callback());
ASSERT_EQ(ERR_IO_PENDING, rv);
int64 offset = callback64.WaitForResult();
EXPECT_EQ(offset, file_size);
int total_bytes_written = 0;
scoped_refptr<IOBufferWithSize> buf = CreateTestDataBuffer();
scoped_refptr<DrainableIOBuffer> drainable =
new DrainableIOBuffer(buf.get(), buf->size());
while (total_bytes_written != kTestDataSize) {
rv = stream->Write(
drainable.get(), drainable->BytesRemaining(), callback.callback());
if (rv == ERR_IO_PENDING)
rv = callback.WaitForResult();
EXPECT_LT(0, rv);
if (rv <= 0)
break;
drainable->DidConsume(rv);
total_bytes_written += rv;
}
EXPECT_EQ(kTestDataSize, total_bytes_written);
rv = stream->Seek(FROM_BEGIN, 0, callback64.callback());
ASSERT_EQ(ERR_IO_PENDING, rv);
offset = callback64.WaitForResult();
EXPECT_EQ(0, offset);
int total_bytes_read = 0;
std::string data_read;
for (;;) {
scoped_refptr<IOBufferWithSize> buf = new IOBufferWithSize(4);
rv = stream->Read(buf.get(), buf->size(), callback.callback());
if (rv == ERR_IO_PENDING)
rv = callback.WaitForResult();
EXPECT_LE(0, rv);
if (rv <= 0)
break;
total_bytes_read += rv;
data_read.append(buf->data(), rv);
}
stream.reset();
ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
EXPECT_EQ(kTestDataSize * 2, file_size);
EXPECT_EQ(kTestDataSize * 2, total_bytes_read);
const std::string kExpectedFileData =
std::string(kTestData) + std::string(kTestData);
EXPECT_EQ(kExpectedFileData, data_read);
}
class TestWriteReadCompletionCallback {
public:
TestWriteReadCompletionCallback(FileStream* stream,
int* total_bytes_written,
int* total_bytes_read,
std::string* data_read)
: result_(0),
have_result_(false),
waiting_for_result_(false),
stream_(stream),
total_bytes_written_(total_bytes_written),
total_bytes_read_(total_bytes_read),
data_read_(data_read),
callback_(base::Bind(&TestWriteReadCompletionCallback::OnComplete,
base::Unretained(this))),
test_data_(CreateTestDataBuffer()),
drainable_(new DrainableIOBuffer(test_data_.get(), kTestDataSize)) {}
int WaitForResult() {
DCHECK(!waiting_for_result_);
while (!have_result_) {
waiting_for_result_ = true;
base::RunLoop().Run();
waiting_for_result_ = false;
}
have_result_ = false; // auto-reset for next callback
return result_;
}
const CompletionCallback& callback() const { return callback_; }
private:
void OnComplete(int result) {
DCHECK_LT(0, result);
*total_bytes_written_ += result;
int rv;
if (*total_bytes_written_ != kTestDataSize) {
// Recurse to finish writing all data.
int total_bytes_written = 0, total_bytes_read = 0;
std::string data_read;
TestWriteReadCompletionCallback callback(
stream_, &total_bytes_written, &total_bytes_read, &data_read);
rv = stream_->Write(
drainable_.get(), drainable_->BytesRemaining(), callback.callback());
DCHECK_EQ(ERR_IO_PENDING, rv);
rv = callback.WaitForResult();
drainable_->DidConsume(total_bytes_written);
*total_bytes_written_ += total_bytes_written;
*total_bytes_read_ += total_bytes_read;
*data_read_ += data_read;
} else { // We're done writing all data. Start reading the data.
stream_->SeekSync(FROM_BEGIN, 0);
TestCompletionCallback callback;
for (;;) {
scoped_refptr<IOBufferWithSize> buf = new IOBufferWithSize(4);
rv = stream_->Read(buf.get(), buf->size(), callback.callback());
if (rv == ERR_IO_PENDING) {
base::MessageLoop::ScopedNestableTaskAllower allow(
base::MessageLoop::current());
rv = callback.WaitForResult();
}
EXPECT_LE(0, rv);
if (rv <= 0)
break;
*total_bytes_read_ += rv;
data_read_->append(buf->data(), rv);
}
}
result_ = *total_bytes_written_;
have_result_ = true;
if (waiting_for_result_)
base::MessageLoop::current()->Quit();
}
int result_;
bool have_result_;
bool waiting_for_result_;
FileStream* stream_;
int* total_bytes_written_;
int* total_bytes_read_;
std::string* data_read_;
const CompletionCallback callback_;
scoped_refptr<IOBufferWithSize> test_data_;
scoped_refptr<DrainableIOBuffer> drainable_;
DISALLOW_COPY_AND_ASSIGN(TestWriteReadCompletionCallback);
};
TEST_F(FileStreamTest, AsyncWriteRead) {
int64 file_size;
bool ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
scoped_ptr<FileStream> stream(
new FileStream(NULL, base::MessageLoopProxy::current()));
int flags = base::PLATFORM_FILE_OPEN |
base::PLATFORM_FILE_READ |
base::PLATFORM_FILE_WRITE |
base::PLATFORM_FILE_ASYNC;
TestCompletionCallback open_callback;
int rv = stream->Open(temp_file_path(), flags, open_callback.callback());
EXPECT_EQ(ERR_IO_PENDING, rv);
EXPECT_EQ(OK, open_callback.WaitForResult());
int64 total_bytes_avail = stream->Available();
EXPECT_EQ(file_size, total_bytes_avail);
int64 offset = stream->SeekSync(FROM_END, 0);
EXPECT_EQ(offset, file_size);
int total_bytes_written = 0;
int total_bytes_read = 0;
std::string data_read;
TestWriteReadCompletionCallback callback(stream.get(), &total_bytes_written,
&total_bytes_read, &data_read);
scoped_refptr<IOBufferWithSize> buf = CreateTestDataBuffer();
rv = stream->Write(buf.get(), buf->size(), callback.callback());
if (rv == ERR_IO_PENDING)
rv = callback.WaitForResult();
EXPECT_LT(0, rv);
EXPECT_EQ(kTestDataSize, total_bytes_written);
stream.reset();
ok = base::GetFileSize(temp_file_path(), &file_size);
EXPECT_TRUE(ok);
EXPECT_EQ(kTestDataSize * 2, file_size);
EXPECT_EQ(kTestDataSize * 2, total_bytes_read);
const std::string kExpectedFileData =
std::string(kTestData) + std::string(kTestData);
EXPECT_EQ(kExpectedFileData, data_read);
}
class TestWriteCloseCompletionCallback {
public:
TestWriteCloseCompletionCallback(FileStream* stream, int* total_bytes_written)
: result_(0),
have_result_(false),
waiting_for_result_(false),
stream_(stream),
total_bytes_written_(total_bytes_written),
callback_(base::Bind(&TestWriteCloseCompletionCallback::OnComplete,
base::Unretained(this))),
test_data_(CreateTestDataBuffer()),
drainable_(new DrainableIOBuffer(test_data_.get(), kTestDataSize)) {}
int WaitForResult() {
DCHECK(!waiting_for_result_);
while (!have_result_) {
waiting_for_result_ = true;
base::RunLoop().Run();
waiting_for_result_ = false;
}
have_result_ = false; // auto-reset for next callback
return result_;
}