* createOutput(DataModelDefinition, ImporterDescription, TestContext)}.
* @throws IOException if failed
*/
@Test
public void open() throws IOException {
Desc desc = MockImporterPreparator.create();
ClassLoader cl = register(ImporterPreparator.class, MockImporterPreparator.class);
SpiImporterPreparator target = new SpiImporterPreparator(cl);
ModelOutput<? super String> source = target.createOutput(ValueDefinition.of(String.class), desc, EMPTY);
source.write("Hello, world!");
source.close();