libcryfs/test/fspp/testutils/InMemoryFile.h
2018-09-15 14:32:58 -07:00

42 lines
1.0 KiB
C++

#pragma once
#ifndef MESSMER_FSPP_TEST_TESTUTILS_INMEMORYFILE_H_
#define MESSMER_FSPP_TEST_TESTUTILS_INMEMORYFILE_H_
#include <cpp-utils/data/Data.h>
#include <fspp/fs_interface/Types.h>
class InMemoryFile {
public:
InMemoryFile(cpputils::Data data);
virtual ~InMemoryFile();
fspp::num_bytes_t read(void *buf, fspp::num_bytes_t count, fspp::num_bytes_t offset) const;
const void *data() const;
fspp::num_bytes_t size() const;
bool fileContentEquals(const cpputils::Data &expected, fspp::num_bytes_t offset) const;
protected:
cpputils::Data _data;
};
class WriteableInMemoryFile: public InMemoryFile {
public:
WriteableInMemoryFile(cpputils::Data data);
void write(const void *buf, fspp::num_bytes_t count, fspp::num_bytes_t offset);
bool sizeUnchanged() const;
bool regionUnchanged(fspp::num_bytes_t offset, fspp::num_bytes_t count) const;
private:
void _extendFileSizeIfNecessary(fspp::num_bytes_t size);
void _extendFileSize(fspp::num_bytes_t size);
cpputils::Data _originalData;
};
#endif