@Before
public final void setUp() throws Exception {
engine = new DefaultKnittingEngine(knittingFactory);
List<Needle> needles = new ArrayList<Needle>();
needles.add(initialNeedle);
engine.useNeedles(needles);
engine.castOn(40, true);
assertOriginalState();
save();
}
@Test
public void checkNeedleReturned() throws Exception {
Needle newNeedle = knittingFactory.createNeedle("new-needle", NeedleStyle.CIRCULAR);
List<Needle> needles = new ArrayList<Needle>();
needles.add(newNeedle);
engine.useNeedles(needles);
engine.castOn(5);
restore();
// note that needles which were not in the engine
// are not affected by the restore
assertEquals(5, newNeedle.getTotalStitches());
}