blob: c9f07f02487c6d187fbe7392dd135d0f8cf134c6 [file] [log] [blame]
// 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.
// This file defines MockFileStream, a test class for FileStream.
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/files/file_path.h"
#include "base/memory/weak_ptr.h"
#include "net/base/file_stream.h"
#include "net/base/net_errors.h"
namespace net {
class IOBuffer;
namespace testing {
class MockFileStream : public net::FileStream {
explicit MockFileStream(const scoped_refptr<base::TaskRunner>& task_runner);
MockFileStream(base::File file,
const scoped_refptr<base::TaskRunner>& task_runner);
virtual ~MockFileStream();
// FileStream methods.
virtual int Seek(net::Whence whence, int64 offset,
const Int64CompletionCallback& callback) OVERRIDE;
virtual int Read(IOBuffer* buf,
int buf_len,
const CompletionCallback& callback) OVERRIDE;
virtual int Write(IOBuffer* buf,
int buf_len,
const CompletionCallback& callback) OVERRIDE;
virtual int Flush(const CompletionCallback& callback) OVERRIDE;
void set_forced_error_async(int error) {
forced_error_ = error;
async_error_ = true;
void set_forced_error(int error) {
forced_error_ = error;
async_error_ = false;
void clear_forced_error() {
forced_error_ = net::OK;
async_error_ = false;
int forced_error() const { return forced_error_; }
const base::FilePath& get_path() const { return path_; }
// Throttles all asynchronous callbacks, including forced errors, until a
// matching ReleaseCallbacks call.
void ThrottleCallbacks();
// Resumes running asynchronous callbacks and runs any throttled callbacks.
void ReleaseCallbacks();
int ReturnError(int function_error) {
if (forced_error_ != net::OK) {
int ret = forced_error_;
return ret;
return function_error;
int64 ReturnError64(int64 function_error) {
if (forced_error_ != net::OK) {
int64 ret = forced_error_;
return ret;
return function_error;
// Wrappers for callbacks to make them honor ThrottleCallbacks and
// ReleaseCallbacks.
void DoCallback(const CompletionCallback& callback, int result);
void DoCallback64(const Int64CompletionCallback& callback, int64 result);
// Depending on |async_error_|, either synchronously returns |forced_error_|
// asynchronously calls |callback| with |async_error_|.
int ErrorCallback(const CompletionCallback& callback);
int64 ErrorCallback64(const Int64CompletionCallback& callback);
int forced_error_;
bool async_error_;
bool throttled_;
base::Closure throttled_task_;
base::FilePath path_;
base::WeakPtrFactory<MockFileStream> weak_factory_;
} // namespace testing
} // namespace net