A suite that takes three hours and nobody trusts
- Why it happens
- The regression suite is slow and flaky, so failures are re-run until green.
- How we work it
- Measure flakiness per test, quarantine and fix or delete the worst offenders, parallelise, move slow end-to-end coverage down the pyramid, enforce a policy that quarantined tests are fixed or removed within a window.
- What you end up with
- A faster suite with a measured flake rate and a red build that blocks, because it is believed.