void export_sqlite_to_flatfile(void** state);
void import_flatfile_to_sqlite(void** state);
void export_idempotent_no_duplicates(void** state);
void export_lmc_correction_survives(void** state);
void switch_preserves_old_backend_data(void** state);
void export_all_contacts(void** state);
void import_double_dedup(void** state);
void verify_after_export(void** state);
void switch_backends_independent_messages(void** state);
void export_empty_contact(void** state);