@Test
public void failedTransaction2() throws ExecutionException, InterruptedException {
Stage stage = createStage();
Bank bank = Actor.getReference(Bank.class, "jimmy");
Inventory inventory = Actor.getReference(Inventory.class, "jimmy");
Store store = Actor.getReference(Store.class, "all");
bank.increment(15).join();
fakeSync.put("proceed", "ok");
// this item is invalid but the bank balance is decreased first.
store.buyItem(bank, inventory, "candy", 10).join();
store.buyItem(bank, inventory, "chocolate", 1).join();
try {
store.buyItem(bank, inventory, "ice cream", 50).join();
fail("expecting an exception");
} catch (CompletionException ex) {
System.out.println(ex.getCause().getMessage());
}
// the bank credits must be restored.
eventually(() -> assertEquals((Integer) 4, bank.getBalance().join()));
// no items were given
eventually(() -> assertEquals(2, inventory.getItems().join().size()));
dumpMessages();
}
@Test
public void successfulTransaction() throws ExecutionException, InterruptedException {
Stage stage = createStage();
Bank bank = Actor.getReference(Bank.class, "jimmy");
Inventory inventory = Actor.getReference(Inventory.class, "jimmy");
Store store = Actor.getReference(Store.class, "all");
bank.increment(15).join();
// this allows the store to proceed without blocking
fakeSync.put("proceed", "ok");
store.buyItem(bank, inventory, "candy", 10).join();
// the balance was decreased
assertEquals((Integer) 5, bank.getBalance().join());
// got the item
assertTrue(inventory.getItems().join().get(0).startsWith("candy:"));
Thread.sleep(1000);
dumpMessages();
}
@Test
public void failedTransaction() throws ExecutionException, InterruptedException {
Stage stage = createStage();
Bank bank = Actor.getReference(Bank.class, "jimmy");
Inventory inventory = Actor.getReference(Inventory.class, "jimmy");
Store store = Actor.getReference(Store.class, "all");
bank.increment(15).join();
fakeSync.put("proceed", "fail");
// this item is invalid but the bank balance is decreased first.
expectException(() -> store.buyItem(bank, inventory, "ice cream", 10).join());
// the bank credits must be restored.
eventually(() -> assertEquals((Integer) 15, bank.getBalance().join()));
// no items were given
assertEquals(0, inventory.getItems().join().size());
dumpMessages();
}