Automation is a prerequisite for fast feedback. Continuous Delivery pipeline steps should run with the least human intervention as possible. The same is true for test scenarios. Executing software tests and validating their results should run completely and reliably without human interaction.

The test cases define the functionality's expected behavior and validate the outcome against it. The test will then reliably pass without additional notice or fail with a detailed explanation. Passing tests should not require any further human interaction.

A scenarios with huge or complex test data in particular represent a certain challenge in automating test cases. In order to deal with this issue, engineers should craft test cases in a maintainable way.