def test(self):
# Open an account.
account = BankAccount.open(
full_name="Alice",
email_address="*****@*****.**",
)
# Credit the account.
account.append_transaction(Decimal("10.00"))
account.append_transaction(Decimal("25.00"))
account.append_transaction(Decimal("30.00"))
# Collect pending events.
pending = account.collect_events()
# Construct event store.
transcoder = JSONTranscoder()
transcoder.register(UUIDAsHex())
transcoder.register(DecimalAsStr())
transcoder.register(DatetimeAsISO())
transcoder.register(EmailAddressAsStr())
recorder = SQLiteAggregateRecorder(SQLiteDatastore(":memory:"))
event_store = EventStore(
mapper=Mapper(transcoder),
recorder=recorder,
)
recorder.create_table()
# Get last event.
last_event = event_store.get(account.id, desc=True, limit=1)
assert list(last_event) == []
# Store pending events.
event_store.put(pending)
# Get domain events.
domain_events = event_store.get(account.id)
# Reconstruct the bank account.
copy = None
for domain_event in domain_events:
copy = domain_event.mutate(copy)
# Check copy has correct attribute values.
assert copy.id == account.id
assert copy.balance == Decimal("65.00")
# Get last event.
events = event_store.get(account.id, desc=True, limit=1)
events = list(events)
assert len(events) == 1
last_event = events[0]
assert last_event.originator_id == account.id
assert type(last_event) == BankAccount.TransactionAppended
def test(self):
# Open an account.
account = BankAccount.open(
full_name="Alice",
email_address="*****@*****.**",
)
# Credit the account.
account.append_transaction(Decimal("10.00"))
account.append_transaction(Decimal("25.00"))
account.append_transaction(Decimal("30.00"))
transcoder = JSONTranscoder()
transcoder.register(UUIDAsHex())
transcoder.register(DecimalAsStr())
transcoder.register(DatetimeAsISO())
transcoder.register(EmailAddressAsStr())
snapshot_store = EventStore(
mapper=Mapper(transcoder=transcoder),
recorder=SQLiteAggregateRecorder(
SQLiteDatastore(":memory:"),
events_table_name="snapshots",
),
)
snapshot_store.recorder.create_table()
# Clear pending events.
account.collect_events()
# Take a snapshot.
snapshot = Snapshot.take(account)
self.assertNotIn("pending_events", snapshot.state)
# Store snapshot.
snapshot_store.put([snapshot])
# Get snapshot.
snapshots = snapshot_store.get(account.id, desc=True, limit=1)
snapshot = next(snapshots)
assert isinstance(snapshot, Snapshot)
# Reconstruct the bank account.
copy = snapshot.mutate()
assert isinstance(copy, BankAccount)
# Check copy has correct attribute values.
assert copy.id == account.id
assert copy.balance == Decimal("65.00")