💡A build that passes smoke can still fail in production because smoke is too shallow to guarantee stability.
We often breathe a sigh of relief when a hotfix or build “passes smoke.” But let’s be honest, smoke testing only tells us that the system isn’t on fire. It doesn’t tell us if the foundation is strong.
Here’s why relying only on smoke is risky:
✅ Limited coverage – usually <10% of real functionality.
✅ False safety – “green smoke” ≠ production-ready.
✅ Integration blind spots – APIs, DBs, and 3rd parties often go untested.
✅ Real-world gaps – concurrency, scale, and edge cases slip through.
Passing smoke is like starting a car engine. Great it runs. But would you drive it across the country without checking the brakes, tires, and fuel? Probably not.
👉 Use smoke as the first filter, not the final gate. Layer it with regression, integration, and exploratory testing even for hotfix builds. That’s how you build real confidence in stability.
👉 How does your team balance speed vs. depth in testing when shipping critical fixes?
Testlio #SoftwareTesting #QualityAssurance #DevOps #Agile #smoketesting #manualtesting #automationtesting
Ph.D, Computer Science Engineer
1mostill, there are version/state constraints between components that are clearly hopeless with a shared test environment. And prod environment must be perfectly clear and stable for the version of the different components (and, yes, the exact match of versions have to be tested in QA/Preprod before) - not messy. So I assume you're writing about Preprod and indeed, it has to be on-par with Prod, so if it breaks, it will break in Prod. But tha's actually the objective, not a problem!