274 lines
		
	
	
		
			9.9 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			274 lines
		
	
	
		
			9.9 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| from __future__ import unicode_literals, print_function
 | |
| 
 | |
| from nose.tools import assert_raises
 | |
| 
 | |
| import boto3
 | |
| from moto import mock_dynamodb2, mock_dynamodbstreams
 | |
| 
 | |
| 
 | |
| class TestCore:
 | |
|     stream_arn = None
 | |
|     mocks = []
 | |
| 
 | |
|     def setup(self):
 | |
|         self.mocks = [mock_dynamodb2(), mock_dynamodbstreams()]
 | |
|         for m in self.mocks:
 | |
|             m.start()
 | |
| 
 | |
|         # create a table with a stream
 | |
|         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},
 | |
|             StreamSpecification={
 | |
|                 "StreamEnabled": True,
 | |
|                 "StreamViewType": "NEW_AND_OLD_IMAGES",
 | |
|             },
 | |
|         )
 | |
|         self.stream_arn = resp["TableDescription"]["LatestStreamArn"]
 | |
| 
 | |
|     def teardown(self):
 | |
|         conn = boto3.client("dynamodb", region_name="us-east-1")
 | |
|         conn.delete_table(TableName="test-streams")
 | |
|         self.stream_arn = None
 | |
| 
 | |
|         for m in self.mocks:
 | |
|             m.stop()
 | |
| 
 | |
|     def test_verify_stream(self):
 | |
|         conn = boto3.client("dynamodb", region_name="us-east-1")
 | |
|         resp = conn.describe_table(TableName="test-streams")
 | |
|         assert "LatestStreamArn" in resp["Table"]
 | |
| 
 | |
|     def test_describe_stream(self):
 | |
|         conn = boto3.client("dynamodbstreams", region_name="us-east-1")
 | |
| 
 | |
|         resp = conn.describe_stream(StreamArn=self.stream_arn)
 | |
|         assert "StreamDescription" in resp
 | |
|         desc = resp["StreamDescription"]
 | |
|         assert desc["StreamArn"] == self.stream_arn
 | |
|         assert desc["TableName"] == "test-streams"
 | |
| 
 | |
|     def test_list_streams(self):
 | |
|         conn = boto3.client("dynamodbstreams", region_name="us-east-1")
 | |
| 
 | |
|         resp = conn.list_streams()
 | |
|         assert resp["Streams"][0]["StreamArn"] == self.stream_arn
 | |
| 
 | |
|         resp = conn.list_streams(TableName="no-stream")
 | |
|         assert not resp["Streams"]
 | |
| 
 | |
|     def test_get_shard_iterator(self):
 | |
|         conn = boto3.client("dynamodbstreams", region_name="us-east-1")
 | |
| 
 | |
|         resp = conn.describe_stream(StreamArn=self.stream_arn)
 | |
|         shard_id = resp["StreamDescription"]["Shards"][0]["ShardId"]
 | |
| 
 | |
|         resp = conn.get_shard_iterator(
 | |
|             StreamArn=self.stream_arn,
 | |
|             ShardId=shard_id,
 | |
|             ShardIteratorType="TRIM_HORIZON",
 | |
|         )
 | |
|         assert "ShardIterator" in resp
 | |
| 
 | |
|     def test_get_shard_iterator_at_sequence_number(self):
 | |
|         conn = boto3.client("dynamodbstreams", region_name="us-east-1")
 | |
| 
 | |
|         resp = conn.describe_stream(StreamArn=self.stream_arn)
 | |
|         shard_id = resp["StreamDescription"]["Shards"][0]["ShardId"]
 | |
| 
 | |
|         resp = conn.get_shard_iterator(
 | |
|             StreamArn=self.stream_arn,
 | |
|             ShardId=shard_id,
 | |
|             ShardIteratorType="AT_SEQUENCE_NUMBER",
 | |
|             SequenceNumber=resp["StreamDescription"]["Shards"][0][
 | |
|                 "SequenceNumberRange"
 | |
|             ]["StartingSequenceNumber"],
 | |
|         )
 | |
|         assert "ShardIterator" in resp
 | |
| 
 | |
|     def test_get_shard_iterator_after_sequence_number(self):
 | |
|         conn = boto3.client("dynamodbstreams", region_name="us-east-1")
 | |
| 
 | |
|         resp = conn.describe_stream(StreamArn=self.stream_arn)
 | |
|         shard_id = resp["StreamDescription"]["Shards"][0]["ShardId"]
 | |
| 
 | |
|         resp = conn.get_shard_iterator(
 | |
|             StreamArn=self.stream_arn,
 | |
|             ShardId=shard_id,
 | |
|             ShardIteratorType="AFTER_SEQUENCE_NUMBER",
 | |
|             SequenceNumber=resp["StreamDescription"]["Shards"][0][
 | |
|                 "SequenceNumberRange"
 | |
|             ]["StartingSequenceNumber"],
 | |
|         )
 | |
|         assert "ShardIterator" in resp
 | |
| 
 | |
|     def test_get_records_empty(self):
 | |
|         conn = boto3.client("dynamodbstreams", region_name="us-east-1")
 | |
| 
 | |
|         resp = conn.describe_stream(StreamArn=self.stream_arn)
 | |
|         shard_id = resp["StreamDescription"]["Shards"][0]["ShardId"]
 | |
| 
 | |
|         resp = conn.get_shard_iterator(
 | |
|             StreamArn=self.stream_arn, ShardId=shard_id, ShardIteratorType="LATEST"
 | |
|         )
 | |
|         iterator_id = resp["ShardIterator"]
 | |
| 
 | |
|         resp = conn.get_records(ShardIterator=iterator_id)
 | |
|         assert "Records" in resp
 | |
|         assert len(resp["Records"]) == 0
 | |
| 
 | |
|     def test_get_records_seq(self):
 | |
|         conn = boto3.client("dynamodb", region_name="us-east-1")
 | |
| 
 | |
|         conn.put_item(
 | |
|             TableName="test-streams",
 | |
|             Item={"id": {"S": "entry1"}, "first_col": {"S": "foo"}},
 | |
|         )
 | |
|         conn.put_item(
 | |
|             TableName="test-streams",
 | |
|             Item={
 | |
|                 "id": {"S": "entry1"},
 | |
|                 "first_col": {"S": "bar"},
 | |
|                 "second_col": {"S": "baz"},
 | |
|             },
 | |
|         )
 | |
|         conn.delete_item(TableName="test-streams", Key={"id": {"S": "entry1"}})
 | |
| 
 | |
|         conn = boto3.client("dynamodbstreams", region_name="us-east-1")
 | |
| 
 | |
|         resp = conn.describe_stream(StreamArn=self.stream_arn)
 | |
|         shard_id = resp["StreamDescription"]["Shards"][0]["ShardId"]
 | |
| 
 | |
|         resp = conn.get_shard_iterator(
 | |
|             StreamArn=self.stream_arn,
 | |
|             ShardId=shard_id,
 | |
|             ShardIteratorType="TRIM_HORIZON",
 | |
|         )
 | |
|         iterator_id = resp["ShardIterator"]
 | |
| 
 | |
|         resp = conn.get_records(ShardIterator=iterator_id)
 | |
|         assert len(resp["Records"]) == 3
 | |
|         assert resp["Records"][0]["eventName"] == "INSERT"
 | |
|         assert resp["Records"][1]["eventName"] == "MODIFY"
 | |
|         assert resp["Records"][2]["eventName"] == "DELETE"
 | |
| 
 | |
|         sequence_number_modify = resp["Records"][1]["dynamodb"]["SequenceNumber"]
 | |
| 
 | |
|         # now try fetching from the next shard iterator, it should be
 | |
|         # empty
 | |
|         resp = conn.get_records(ShardIterator=resp["NextShardIterator"])
 | |
|         assert len(resp["Records"]) == 0
 | |
| 
 | |
|         # check that if we get the shard iterator AT_SEQUENCE_NUMBER will get the MODIFY event
 | |
|         resp = conn.get_shard_iterator(
 | |
|             StreamArn=self.stream_arn,
 | |
|             ShardId=shard_id,
 | |
|             ShardIteratorType="AT_SEQUENCE_NUMBER",
 | |
|             SequenceNumber=sequence_number_modify,
 | |
|         )
 | |
|         iterator_id = resp["ShardIterator"]
 | |
|         resp = conn.get_records(ShardIterator=iterator_id)
 | |
|         assert len(resp["Records"]) == 2
 | |
|         assert resp["Records"][0]["eventName"] == "MODIFY"
 | |
|         assert resp["Records"][1]["eventName"] == "DELETE"
 | |
| 
 | |
|         # check that if we get the shard iterator AFTER_SEQUENCE_NUMBER will get the DELETE event
 | |
|         resp = conn.get_shard_iterator(
 | |
|             StreamArn=self.stream_arn,
 | |
|             ShardId=shard_id,
 | |
|             ShardIteratorType="AFTER_SEQUENCE_NUMBER",
 | |
|             SequenceNumber=sequence_number_modify,
 | |
|         )
 | |
|         iterator_id = resp["ShardIterator"]
 | |
|         resp = conn.get_records(ShardIterator=iterator_id)
 | |
|         assert len(resp["Records"]) == 1
 | |
|         assert resp["Records"][0]["eventName"] == "DELETE"
 | |
| 
 | |
| 
 | |
| 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", "StreamEnabled": True},
 | |
|         )
 | |
|         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(conn.exceptions.ResourceInUseException):
 | |
|             resp = conn.update_table(
 | |
|                 TableName="test-streams",
 | |
|                 StreamSpecification={
 | |
|                     "StreamViewType": "OLD_IMAGES",
 | |
|                     "StreamEnabled": True,
 | |
|                 },
 | |
|             )
 | |
| 
 | |
|     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", "StreamEnabled": True},
 | |
|         )
 | |
|         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"
 |