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Testing

Confidence through verification. From unit tests to chaos engineering, the strategies that let you ship without holding your breath.

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Fundamentals

The Testing Pyramid

Unit, integration, end-to-end — why the ratio matters and what happens when you invert it.

Strategy

Test-Driven Development

Red, green, refactor. Writing tests first as a design tool, not just a safety net.

Integration

Contract Testing

Verifying service boundaries without spinning up the entire stack. Pact, consumer-driven contracts, and schema validation.

Resilience

Chaos Engineering

Intentionally breaking things in production to find weaknesses before your users do.

Performance

Load & Stress Testing

Finding the breaking point before launch day. k6, Gatling, Locust, and what the numbers actually mean.

Practice

Flaky Tests & Test Debt

Why test suites rot, how flaky tests erode trust, and strategies for keeping your suite healthy.

Testing