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#ifndef CERT_TRANS_UTIL_TEST_DB_H_
#define CERT_TRANS_UTIL_TEST_DB_H_
#include <gflags/gflags.h>
#include <glog/logging.h>
#include <stdlib.h>
#include "base/macros.h"
#include "util/util.h"
DEFINE_string(database_test_dir, "/tmp",
"Test directory for databases that use the disk. We attempt to "
"remove all created files and directories but data may be left "
"behind if the program does not exit cleanly.");
class TmpStorage {
public:
TmpStorage() : tmp_dir_(FLAGS_database_test_dir) {
file_base_ = util::CreateTemporaryDirectory(tmp_dir_ + "/ctlogXXXXXX");
CHECK_EQ(tmp_dir_ + "/ctlog", file_base_.substr(0, tmp_dir_.size() + 6));
CHECK_EQ(tmp_dir_.size() + 12, file_base_.length());
}
~TmpStorage() {
// Check again that it is safe to empty file_base_.
CHECK_EQ(tmp_dir_ + "/ctlog", file_base_.substr(0, tmp_dir_.size() + 6));
CHECK_EQ(tmp_dir_.size() + 12, file_base_.length());
std::string command = "rm -r " + file_base_;
CHECK_ERR(system(command.c_str()))
<< "Failed to delete temporary directory in " << file_base_;
}
std::string TmpStorageDir() const {
return file_base_;
}
private:
std::string tmp_dir_;
std::string file_base_;
};
// Helper for generating test instances of the databases for typed tests.
template <class T>
class TestDB {
public:
TestDB() : tmp_() {
Setup();
}
void Setup();
T* db() const {
return db_.get();
}
// Build a second database from the current disk state. Caller owns result.
// Meant to be used for testing resumes from disk.
// Concurrent behaviour is undefined (depends on the Database
// implementation).
T* SecondDB();
private:
TmpStorage tmp_;
std::unique_ptr<T> db_;
DISALLOW_COPY_AND_ASSIGN(TestDB);
};
#endif // CERT_TRANS_UTIL_TEST_DB_H_
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