82 lines
2.8 KiB

#include <fstream>
#include <map>
#include <queue>
#include <string>
#include <utility>
#include "fsfw/filesystem.h"
* This mock models a filesystem in the RAM. It can be used to verify correct behaviour of
* a component using a filesystem without relying on an actual OS filesystem implementation.
* Please note that this object does not actually check paths for validity. The file API was
* built in a way to allow reading a file back after it was written while also remembering
* the specific file segments which were inserted in write calls.
class FilesystemMock : public HasFileSystemIF {
struct FileWriteInfo {
FileWriteInfo(std::string filename, size_t offset, const uint8_t *data, size_t len)
: filename(std::move(filename)), offset(offset) {
this->data.insert(this->data.end(), data, data + len);
std::string filename;
size_t offset;
std::vector<uint8_t> data;
using FileSegmentQueue = std::queue<FileWriteInfo>;
struct FileInfo {
FileSegmentQueue fileSegQueue;
std::vector<uint8_t> fileRaw;
std::map<std::string, FileInfo> fileMap;
struct DirInfo {
size_t createCallCount = 0;
size_t delCallCount = 0;
std::queue<bool> wihParentDir;
std::queue<bool> recursiveDeletion;
std::map<std::string, DirInfo> dirMap;
struct RenameInfo {
RenameInfo(std::string oldName, std::string newName)
: oldName(std::move(oldName)), newName(std::move(newName)) {}
std::string oldName;
std::string newName;
std::queue<RenameInfo> renameQueue;
std::string truncateCalledOnFile;
ReturnValue_t feedFile(const std::string &filename, std::ifstream &file);
bool fileExists(FilesystemParams params) override;
ReturnValue_t truncateFile(FilesystemParams params) override;
ReturnValue_t writeToFile(FileOpParams params, const uint8_t *data) override;
ReturnValue_t readFromFile(FileOpParams params, uint8_t **buffer, size_t &readSize,
size_t maxSize) override;
ReturnValue_t createFile(FilesystemParams params, const uint8_t *data, size_t size) override;
ReturnValue_t removeFile(const char *path, FileSystemArgsIF *args) override;
ReturnValue_t createDirectory(FilesystemParams params, bool createParentDirs) override;
ReturnValue_t removeDirectory(FilesystemParams params, bool deleteRecurively) override;
ReturnValue_t rename(const char *oldPath, const char *newPath, FileSystemArgsIF *args) override;
void reset();
using HasFileSystemIF::createDirectory;
using HasFileSystemIF::createFile;
using HasFileSystemIF::readFromFile;
void createOrAddToFile(FileOpParams params, const uint8_t *data);