### Question:
RDBRepository implements Repository { @Override public void export(Format format, UID context, OutputStream out) { export(format, Namespaces.DEFAULT, context, out); } RDBRepository(
            Configuration configuration,
            DataSource dataSource,
            SQLTemplates templates,
            IdSequence idSequence,
            RDFSource... sources); @Override void close(); @Override RT execute(RDFConnectionCallback<RT> operation); @Override void export(Format format, UID context, OutputStream out); @Override void export(Format format, Map<String, String> ns2prefix, UID context, OutputStream out); @Override void load(Format format, InputStream is, @Nullable UID context, boolean replace); @Override void initialize(); @Override RDBConnection openConnection();  }### Answer:
@Test public void Export() { ByteArrayOutputStream baos = new ByteArrayOutputStream(); repository.export(Format.TURTLE, null, baos); }