105. Integration Testing on AWS
In this episode, we discuss integration testing event-driven systems and explore AWS's new Integration Application Test Kit (IATK). We cover the challenges of testing events and common approaches like logging, end-to-end testing, and using temporary queues. We then introduce IATK, walk through how to use it for EventBridge testing, and share our experience trying out the X-Ray trace validation. We found IATK promising but still rough around the edges, though overall a useful addition to help test complex event flows.
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🔖 Chapters:
00:00 Introduction to integration testing challenges
00:54 Overview of integration testing approaches
04:30 Common techniques for testing events
06:01 Difference between integration tests and end-to-end (E2E) tests
06:44 Existing tools like SLS Test Tools
08:14 Introducing AWS IATK
09:34 Using IATK for EventBridge testing
12:09 Walkthrough of creating IATK tests
15:12 Validating traces with IATK and X-Ray
19:01 Issues faced with trace validation
21:06 Generating mock events with IATK
23:02 Thoughts and pros and cons of IATK
27:37 Closing notes
In this episode, we mentioned the following resources:
sls-test-tools on GitHub: https://github.com/aleios-cloud/sls-t...
Sarah Hamilton’s article on Integration testing and how to use sls-test-tool: / bridge-integrity-integration-testing-strat...
Our previous episode on building a cross-account Event Bridge deployment: https://awsbites.com/39-how-do-you-bu...
Our IATK tests for the cross-account Event Bridge project: https://github.com/fourTheorem/cross-...
IATK tutorial: https://awslabs.github.io/aws-iatk/tu...
IATK examples: https://awslabs.github.io/aws-iatk/tu...
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