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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
The Python package moto bundles mocks for many AWS services, including DynamoDB. The DynamoDB mock behaves mainly like the service - we can create tables, add data, query data, remove data, and much more. Not all features are supported, though - the documentation lists the available API calls. We can use this in combination with pytest to create a simple test setup.
Next, we'll begin by creating a demo project that we will test. I'm opting for a simple Lambda function that accepts an event, queries some data from DynamoDB, and stores an aggregate in DynamoDB. The general idea is to include a few ways of accessing DynamoDB to see how we can test them. This is what our project structure looks like (you can find all of the code on Github):