@Test
public void createInstanceFromOldEvents() throws Exception {
CalculatorAggregate aggregate =
new CalculatorAggregate(
"xyz",
Arrays.asList(
new NumberAddedEvent(1), new NumberAddedEvent(2), new NumberAddedEvent(3)));
assertEquals(6, aggregate.sum);
assertFalse(aggregate.isDirty());
}
@Test
public void addAdditionalNumber() throws Exception {
CalculatorAggregate aggregate =
new CalculatorAggregate(
"xyz",
Arrays.asList(
new NumberAddedEvent(1), new NumberAddedEvent(2), new NumberAddedEvent(3)));
aggregate.addNumber(5);
assertTrue(aggregate.isDirty());
assertEquals(Collections.singletonList(new NumberAddedEvent(5)), aggregate.dirtyEvents());
}
