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Testing & QA

Testing pyramid, unit testing frameworks (Jest/PyTest), integration testing, end-to-end automation (Playwright), and TDD.

1Test Pyramid Strategy & Unit Testing Basics

Test Automation Pyramid, Ice Cream Cone anti-pattern, AAA test pattern, and Gerard Meszaros Test Double taxonomy.

Test Pyramid Strategy & Unit Testing Basics

Master the Test Pyramid, unit test execution economics, the Arrange-Act-Assert pattern, and FIRST testing principles.

Test Pyramid Strategy & Unit Testing Basics

Master testing foundations, analyzing the Test Automation Pyramid, the Arrange-Act-Assert pattern, FIRST unit testing principles, and Gerard Meszaros' test double taxonomy.

2Mocking, Stubbing & Test-Driven Development (TDD)

TDD Red-Green-Refactor cycle, London vs Detroit TDD schools, dynamic monkeypatching, and function spies.

Mocking, Stubbing & Test-Driven Development (TDD)

Master the Red-Green-Refactor rhythm, contrast London versus Detroit TDD, and implement function spies and mocks.

Mocking, Stubbing & Test-Driven Development (TDD)

Master Test-Driven Development (TDD), contrast London and Detroit schools, avoid brittle over-mocking anti-patterns, and build function spies.

3Integration & Contract Testing Strategies

Ephemeral Testcontainers, database transaction rollbacks, Consumer-Driven Contract Testing (Pact), and provider verification.

Integration & Contract Testing Strategies

Understand ephemeral Testcontainers integration testing, database rollback isolation, and Consumer-Driven Contract Testing via Pact.

Integration & Contract Testing Strategies

Deploy integration tests using ephemeral Testcontainers, maintain database isolation via transaction rollbacks, and eliminate distributed testing bottlenecks with Consumer-Driven Contracts (Pact).

4End-to-End Automation & Continuous Testing

Playwright WebSocket architecture, flaky test quarantine engineering, code coverage traps, and Mutation Testing engines.

End-to-End Automation & Continuous Testing

Master modern Playwright browser automation, CDP DevTools protocols, flaky test quarantine buckets, and Mutation Testing scores.

End-to-End Automation & Continuous Testing

Implement modern Playwright browser automation via Chrome DevTools Protocol, architect automated flaky test quarantine pipelines, and assess test suite adequacy via Mutation Testing.