Yasuke/moto
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Tweak functionality and add tests

Browse Source
This commit is contained in:
Karl Gutwin 2018-11-08 13:22:24 -05:00
parent ff6a57f443
commit 9d190aa04e
2 changed files with 108 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
moto/dynamodb2/models.py
View File

@ -406,10 +406,13 @@ class Table(BaseModel):
def set_stream_specification(self, streams):
self.stream_specification = streams
if streams and streams.get('StreamEnabled'):
if streams and (streams.get('StreamEnabled')
or streams.get('StreamViewType')):
self.stream_specification['StreamEnabled'] = True
self.latest_stream_label = datetime.datetime.utcnow().isoformat()
self.stream_shard = StreamShard(self)
else:
self.stream_specification = {'StreamEnabled': False}
self.latest_stream_label = None
self.stream_shard = None
@ -429,11 +432,11 @@ class Table(BaseModel):
'LocalSecondaryIndexes': [index for index in self.indexes],
}
}
if self.stream_specification:
if self.stream_specification and self.stream_specification['StreamEnabled']:
results[base_key]['StreamSpecification'] = self.stream_specification
if self.latest_stream_label:
results[base_key]['LatestStreamLabel'] = self.latest_stream_label
results[base_key]['LatestStreamArn'] = self.table_arn + '/stream/' + self.latest_stream_label
if self.latest_stream_label:
results[base_key]['LatestStreamLabel'] = self.latest_stream_label
results[base_key]['LatestStreamArn'] = self.table_arn + '/stream/' + self.latest_stream_label
return results
def __len__(self):
@ -779,7 +782,9 @@ class DynamoDBBackend(BaseBackend):
def update_table_streams(self, name, stream_specification):
table = self.tables[name]
if stream_specification['StreamEnabled'] and table.latest_stream_label:
if ((stream_specification.get('StreamEnabled')
or stream_specification.get('StreamViewType'))
and table.latest_stream_label):
raise ValueError('Table already has stream enabled')
table.set_stream_specification(stream_specification)
return table

99
tests/test_dynamodbstreams/test_dynamodbstreams.py
View File

@ -1,10 +1,12 @@
from __future__ import unicode_literals, print_function
from nose.tools import assert_raises
import boto3
from moto import mock_dynamodb2, mock_dynamodbstreams
class TestClass():
class TestCore():
stream_arn = None
mocks = []
@ -84,7 +86,7 @@ class TestClass():
resp = conn.get_shard_iterator(
StreamArn=self.stream_arn,
ShardId=shard_id,
ShardIteratorType='TRIM_HORIZON'
ShardIteratorType='LATEST'
)
iterator_id = resp['ShardIterator']
@ -137,3 +139,96 @@ class TestClass():
# empty
resp = conn.get_records(ShardIterator=resp['NextShardIterator'])
assert len(resp['Records']) == 0
class TestEdges():
mocks = []
def setup(self):
self.mocks = [mock_dynamodb2(), mock_dynamodbstreams()]
for m in self.mocks:
m.start()
def teardown(self):
for m in self.mocks:
m.stop()
def test_enable_stream_on_table(self):
conn = boto3.client('dynamodb', region_name='us-east-1')
resp = conn.create_table(
TableName='test-streams',
KeySchema=[{'AttributeName': 'id', 'KeyType': 'HASH'}],
AttributeDefinitions=[{'AttributeName': 'id',
'AttributeType': 'S'}],
ProvisionedThroughput={'ReadCapacityUnits': 1,
'WriteCapacityUnits': 1}
)
assert 'StreamSpecification' not in resp['TableDescription']
resp = conn.update_table(
TableName='test-streams',
StreamSpecification={
'StreamViewType': 'KEYS_ONLY'
}
)
assert 'StreamSpecification' in resp['TableDescription']
assert resp['TableDescription']['StreamSpecification'] == {
'StreamEnabled': True,
'StreamViewType': 'KEYS_ONLY'
}
assert 'LatestStreamLabel' in resp['TableDescription']
# now try to enable it again
with assert_raises(ValueError):
resp = conn.update_table(
TableName='test-streams',
StreamSpecification={
'StreamViewType': 'OLD_IMAGES'
}
)
def test_stream_with_range_key(self):
dyn = boto3.client('dynamodb', region_name='us-east-1')
resp = dyn.create_table(
TableName='test-streams',
KeySchema=[{'AttributeName': 'id', 'KeyType': 'HASH'},
{'AttributeName': 'color', 'KeyType': 'RANGE'}],
AttributeDefinitions=[{'AttributeName': 'id',
'AttributeType': 'S'},
{'AttributeName': 'color',
'AttributeType': 'S'}],
ProvisionedThroughput={'ReadCapacityUnits': 1,
'WriteCapacityUnits': 1},
StreamSpecification={
'StreamViewType': 'NEW_IMAGES'
}
)
stream_arn = resp['TableDescription']['LatestStreamArn']
streams = boto3.client('dynamodbstreams', region_name='us-east-1')
resp = streams.describe_stream(StreamArn=stream_arn)
shard_id = resp['StreamDescription']['Shards'][0]['ShardId']
resp = streams.get_shard_iterator(
StreamArn=stream_arn,
ShardId=shard_id,
ShardIteratorType='LATEST'
)
iterator_id = resp['ShardIterator']
dyn.put_item(
TableName='test-streams',
Item={'id': {'S': 'row1'}, 'color': {'S': 'blue'}}
)
dyn.put_item(
TableName='test-streams',
Item={'id': {'S': 'row2'}, 'color': {'S': 'green'}}
)
resp = streams.get_records(ShardIterator=iterator_id)
assert len(resp['Records']) == 2
assert resp['Records'][0]['eventName'] == 'INSERT'
assert resp['Records'][1]['eventName'] == 'INSERT'