fsfw/unittests/mocks/FilesystemMock.h

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#ifndef FSFW_MOCKS_FILESYSTEMMOCK_H
#define FSFW_MOCKS_FILESYSTEMMOCK_H
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#include <fstream>
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#include <map>
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#include <queue>
#include <string>
#include <utility>
#include "fsfw/filesystem.h"
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/**
* 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 {
public:
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struct FileWriteInfo {
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FileWriteInfo(std::string filename, size_t offset, const uint8_t *data, size_t len)
: filename(std::move(filename)), offset(offset) {
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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;
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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;
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ReturnValue_t feedFile(const std::string &filename, std::ifstream &file);
ReturnValue_t writeToFile(FileOpParams params, const uint8_t *data) override;
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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;
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ReturnValue_t rename(const char *oldPath, const char *newPath, FileSystemArgsIF *args) override;
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void reset();
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using HasFileSystemIF::createDirectory;
using HasFileSystemIF::createFile;
using HasFileSystemIF::readFromFile;
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private:
void createOrAddToFile(FileOpParams params, const uint8_t *data);
};
#endif // FSFW_MOCKS_FILESYSTEMMOCK_H