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How we cut CI from 45 minutes to 8 minutes — a practical breakdownSix months ago our test pipeline blocked PRs for 45 minutes. Today it's 8 minutes. Here's every change we made, in…
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Playwright trace viewer completely changed how I debug failing CI testsBefore trace viewer, debugging a CI failure meant adding console.log, pushing, waiting 8 minutes for CI, repeat.…
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What is your systematic approach when a test passes locally but fails in CI?This is the most frustrating debugging scenario I encounter regularly. Test passes 100% locally, fails 30–80% in CI. My…
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How do you parallelise 1000+ tests to run in under 10 minutes in CI?Our test suite: 1200 Playwright tests, currently runs serially in ~55 minutes. Target: under 10 minutes for the PR…
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Has your team shifted performance testing left (earlier in the dev cycle)?0 votes · select an option to vote
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k6 vs JMeter vs Gatling in 2026 — which would you choose for a new project?Starting a new performance testing initiative. Our stack: Node.js microservices, REST APIs, ~50k requests/day in…
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Cross-browser testing — how many browsers do you actually test against?Theoretically we should test Chrome, Firefox, Safari, Edge. In practice: - Chrome is 65% of our user base - Safari is…
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Flaky test quarantine in CI — auto-retry, dedicated quarantine job, or just fix them?Our flake rate is ~4% per test in CI (down from 9% after a big cleanup push). With 800 tests that means ~32 flaky…
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GitHub Actions vs GitLab CI for running test suites — practical comparison?We're moving off Jenkins and evaluating GitHub Actions vs GitLab CI (we're already on GitLab for source control). For…
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How involved should SDETs be in security testing — and what skills does it require?My company is adding basic security testing requirements. Leadership wants SDETs to own it since we already own…
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Is contract testing with Pact worth the setup cost for a 2-team API boundary?We have two teams: one owns a user service (Python/FastAPI), one owns a frontend (Next.js). The user service API is the…
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Shared test environments vs per-test isolation — how do you decide?We have two camps on our team: Camp A (shared environment): Tests run against a shared staging server. Fast to set up,…
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How do you write meaningful performance assertions in your load tests?Most load test examples I see just report numbers (p95, p99, RPS) without failing the test definitively. I want our…
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Best approach for secrets management for test credentials in CI?We have test credentials (API keys for sandbox environments, DB passwords, OAuth tokens) that need to be available in…
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Is there a practical upper limit on how long a single automated test should run?We have a handful of E2E tests that take 4–6 minutes each. They cover complex user journeys (onboarding flow,…
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Is Selenium Grid 4 still worth self-hosting or should we just use cloud providers?We're running Selenium Grid 3 on 6 VMs and it's a maintenance headache — node crashes, session leaks, version…
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pytest-xdist vs pytest-parallel — which is more reliable for parallel test execution?We need to parallelise a 600-test pytest suite. Current serial runtime is ~22 minutes, target is under 8 minutes. I've…
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What test metrics do you actually report from CI to Slack or Teams?We want to add test result notifications to our Slack channel after each CI run. Before I build this out I want to know…
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How do you handle API rate limiting in automated test suites?Our test suite hits a third-party API (Stripe sandbox) and we occasionally get 429s in CI, causing random test…
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