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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.
// This file defines MockFileStream, a test class for FileStream.
#ifndef NET_BASE_MOCK_FILE_STREAM_H_
#define NET_BASE_MOCK_FILE_STREAM_H_
#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 FileStream {
public:
explicit MockFileStream(const scoped_refptr<base::TaskRunner>& task_runner);
MockFileStream(base::File file,
const scoped_refptr<base::TaskRunner>& task_runner);
~MockFileStream() override;
// FileStream methods.
int Seek(base::File::Whence whence,
int64 offset,
const Int64CompletionCallback& callback) override;
int Read(IOBuffer* buf,
int buf_len,
const CompletionCallback& callback) override;
int Write(IOBuffer* buf,
int buf_len,
const CompletionCallback& callback) override;
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_ = 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();
private:
int ReturnError(int function_error) {
if (forced_error_ != OK) {
int ret = forced_error_;
clear_forced_error();
return ret;
}
return function_error;
}
int64 ReturnError64(int64 function_error) {
if (forced_error_ != OK) {
int64 ret = forced_error_;
clear_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
#endif // NET_BASE_MOCK_FILE_STREAM_H_
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