@Before
public void saveWithExtension() {
TestStorageFormatExtended.register(testFormatRegistry);
AISBuilder aisb = new AISBuilder();
Sequence sequence = aisb.sequence("test", "seq", 0, 1, 0, 1000, true);
TestStorageDescriptionExtended storageDescription = new TestStorageDescriptionExtended(sequence, identifier);
storageDescription.setStorageKey("KEY");
storageDescription.setExtension("PLUS");
assertTrue(isFullDescription(storageDescription));
sequence.setStorageDescription(storageDescription);