add dynamodb collection

layercake/tests/conftest.py

@@ -1,7 +1,44 @@
 import boto3
 import pytest
 
+import layercake.jsonl as jsonl
+from layercake.dynamodb import DynamoDBPersistenceLayer
+
+table_name = 'pytest'
+dynamodb_endpoint_url = 'http://127.0.0.1:8000'
+
+
+@pytest.fixture
+def dynamodb_client():
+    client = boto3.client('dynamodb', endpoint_url=dynamodb_endpoint_url)
+    client.create_table(
+        AttributeDefinitions=[
+            {'AttributeName': 'id', 'AttributeType': 'S'},
+            {'AttributeName': 'sk', 'AttributeType': 'S'},
+        ],
+        TableName=table_name,
+        KeySchema=[
+            {'AttributeName': 'id', 'KeyType': 'HASH'},
+            {'AttributeName': 'sk', 'KeyType': 'RANGE'},
+        ],
+        ProvisionedThroughput={
+            'ReadCapacityUnits': 123,
+            'WriteCapacityUnits': 123,
+        },
+    )
+
+    yield client
+
+    client.delete_table(TableName=table_name)
+
 
 @pytest.fixture()
-def dynamodb_client():
-    return boto3.client('dynamodb', endpoint_url='http://127.0.0.1:8000')
+def dynamodb_persistence_layer(dynamodb_client) -> DynamoDBPersistenceLayer:
+    return DynamoDBPersistenceLayer(table_name, dynamodb_client)
+
+
+@pytest.fixture()
+def dynamodb_seeds(dynamodb_client):
+    with jsonl.readlines('tests/seeds.jsonl') as lines:
+        for line in lines:
+            dynamodb_client.put_item(TableName=table_name, Item=line)