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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 use pytest.mark.parametrize with complex nested data structures?I need to parametrize a test with inputs that are dictionaries containing lists, some optional keys, and some keys that…
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How do you test accessibility (a11y) effectively — tools and approach that actually work?We want to add accessibility testing to our suite. We have a React app with ~60 pages. Current thinking: - axe-core +…
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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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Strategy for testing APIs that call third-party services — mock, contract, or live?Our payments API calls Stripe, our notifications API calls SendGrid, and our geolocation API calls Google Maps. All…
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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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Managing test data in pytest — factory pattern, fixtures, or external files?As our API test suite grows I'm realising ad-hoc test data in each test function is a maintenance nightmare. Three…
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How do you handle visual regression testing at scale?We want to add visual regression tests for our design system components (50+ components) and a few key pages. Tools…
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What is your actual test pyramid ratio in practice — unit, integration, E2E?The classic answer is 70% unit / 20% integration / 10% E2E. But I've never worked on a team that actually hits that…
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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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Headless vs headed browser testing — when do you run headed locally?Most people run headed during development and headless in CI. But I'm curious about the exceptions: - When do you run…
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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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How granular is your test tagging strategy and does it actually get used?We use pytest marks for test organisation: @pytest.mark.slow, @pytest.mark.integration, @pytest.mark.smoke. In theory:…
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BDD with Cucumber and Gherkin — genuine value or just an abstraction layer nobody asked for?My new company uses Cucumber for all E2E tests. Feature files are written in Gherkin, step definitions in Java. After 2…
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Database testing strategies when your team does not own the database schema?We're an SDET team testing a service that uses a database we don't own — the schema is managed by a platform team and…
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ISTQB certification in 2026 — is it worth the time and money for career advancement?I'm considering ISTQB Foundation and Advanced (Test Automation Engineer) certifications. Combined cost with study…
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