ChannelPulse
Testing and shipping safely at machine speed
When changes arrive faster than people can check them, testing and deploy have to catch problems without a person in the loop on the happy path. This lesson covers goal-based tests that an agent runs against the real app, tests that maintain themselves, validating in batches after merge, and progressive rollout with automatic rollback.
What you'll be able to do
- Describe a goal-based end-to-end test and why a second check must judge its result before it can gate a merge
- Explain probation for new and flaky tests, and self-healing tests, with their risks
- Design post-merge batch validation with a culprit finder, and choose between fixing forward and reverting
- Describe progressive rollout (promote, bake, health check, roll back) and use it in a system design answer
Before this: review-as-a-risk-tiered-gate
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When changes arrive faster than people can check them, testing and deploy have to catch problems without a person in the loop on the happy path. This lesson covers goal-based tests that an agent runs against the real app, tests that maintain themselves, validating in batches after merge, and progressive rollout with automatic rollback. This walkthrough runs about 14 minutes, with runnable code you can edit and re-run as you read. A new account gets 7 days of Pro free, no card required.
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