assertThat(exporterPath, is(notNullValue()));
Location exporterLocation = Location.fromPath(exporterPath, '/');
assertThat(exporterLocation.isPrefix(), is(true));
ModelOutput<Simple> source = tester.openOutput(Simple.class, importerLocation);
Simple model = new Simple();
model.setValueAsString("Hello1, world!");
source.write(model);
model.setValueAsString("Hello2, world!");
source.write(model);
model.setValueAsString("Hello3, world!");
source.write(model);
source.close();
assertThat(tester.runStages(info), is(true));