Section: AWS Services / Step Function

[szikszail]

Links:

• https://docs.aws.amazon.com/step-functions/latest/dg/create-sample-projects.html
• https://docs.aws.amazon.com/step-functions/latest/dg/sfn-local.html
• https://jira.epam.com/jira/browse/EPMDEBIP-352

Source: https://github.com/Idea-Pool/aws-testing/blob/main/docs/aws-services/step-function.md

Tasks:

• Introduce steps functions
• Write about testing types and practices
• Make sample stack
• Make tests for the sample stack

Other useful material:
On the Diverse And Fantastical Shapes of Testing.pdf
Testing AWS Step Functions flows - DEV Community.pdf
Testing strategies for Step Functions - Lumigo.pdf

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Tracking of https://jira.epam.com/jira/browse/EPMDEBIP-352

[kornel-filep]

My proposal would be to use 2 (or maybe all 3) from these examples:

• Fan out a batch job using AWS Step Functions
  This seems like a general use-case where we have to fan out a big batch job. As this comes up a lot during development, including an example with this could be interesting and useful for the audience.
• Dynamically process data with a Map state
  Data processing and writing to a DynamoDB would increase the scope of this step function testing, but as step functions are used a lot in data pipelines, this might be an interesting scenario to work on as well.
• Poll for Job Status (Lambda, AWS Batch)
  And this one is just an easy job poller, which when a timeout happens returns with an error. We have a simple condition check in the step function so might as well include it as a simpler example.

@sorosz89 what do you think?

[sorosz89]

Good idea, we can even use a simple one as well: Make a call to API Gateway

[szikszail]

https://github.com/Idea-Pool/poc-aws-step-function-cdk-testing