def test_s3event_construct():
event = stubs.generate_event()['Records'][0]
ev = S3event(event)
assert ev.bucket == event['s3']['bucket']['name']
assert ev.etag == event['s3']['object']['eTag']
assert ev.key == event['s3']['object']['key']
assert ev.name == event['eventName']
assert ev.region == event['awsRegion']
assert ev.sequencer == event['s3']['object']['sequencer']
assert ev.source == event['eventSource']
assert ev.time == event['eventTime']
assert hasattr(ev.datetime, 'isoformat')
def test_parse_aws_event():
message = stubs.generate_event()
result = parse_aws_event(message)
assert len(result) == 1
assert type(result[0]) == S3event