### Question:
SqlDao implements AutoCloseable { public void initializeTables() throws SQLException { if (hasTable("permissions")) { return; } String database = conn.getMetaData().getDatabaseProductName().toLowerCase(); try (InputStream res = SqlDao.class.getResourceAsStream("deploy/" + database + ".sql")) { if (res == null) { throw new SQLException("No initial schema available for " + database + " databases!"); } try (BufferedReader read = new BufferedReader(new InputStreamReader(res, StandardCharsets.UTF_8))) { executeStream(read); } } catch (IOException e) { throw new SQLException(e); } } SqlDao(SqlDataStore ds); PreparedStatement prepareStatement(String query); LegacyDao legacy(); Optional<String> getGlobalParameter(String key); void setGlobalParameter(String key, String value); Optional<SubjectRef> getSubjectRef(int id); Optional<SubjectRef> getSubjectRef(String type, String name); boolean removeSubject(SubjectRef ref); boolean removeSubject(String type, String name); SubjectRef getOrCreateSubjectRef(String type, String name); void allocateSubjectRef(SubjectRef ref); int getIdAllocating(SubjectRef ref); List<Segment> getSegments(SubjectRef ref); Segment addSegment(SubjectRef ref); void updateFullSegment(SubjectRef ref, Segment segment); void setContexts(Segment seg, Set<ContextValue<?>> contexts); void allocateSegment(SubjectRef subject, Segment val); boolean removeSegment(Segment segment); Set<String> getAllIdentifiers(String type); Set<String> getRegisteredTypes(); void initializeTables(); void clearOption(Segment segment, String option); void setOptions(Segment seg, Map<String, String> options); void setOption(Segment segment, String key, String value); void setPermission(Segment segment, String permission, int value); void clearPermission(Segment segment, String permission); void setPermissions(Segment segment, Map<String, Integer> permissions); void setDefaultValue(Segment segment, Integer permissionDefault); void addParent(Segment seg, SubjectRef parent); void removeParent(Segment segment, SubjectRef parent); void setParents(Segment segment, List<SubjectRef> parents); SqlContextInheritance getContextInheritance(); void setContextInheritance(ContextValue<?> child, List<ContextValue<?>> parents); RankLadder getRankLadder(String name); boolean hasEntriesForRankLadder(String name); void setRankLadder(String name, RankLadder ladder); Iterable<String> getAllRankLadderNames(); Iterable<SubjectRef> getAllSubjectRefs(); Set<String> getUsedContextKeys(); @Override void close(); void renameTable(String oldName, String newName); void deleteTable(String table); int getSchemaVersion(); void setSchemaVersion(int version); SqlDataStore getDataStore(); Connection getConnection();  }### Answer:
@Test public void testInitializeTables() throws SQLException { try (SqlDao dao = sqlStore.getDao()) { dao.initializeTables(); } }