GuideIntermediate

Testing with Claude Code

Master TDD and professional testing with AI assistance. Learn the spec-first methodology — define tests as specifications before implementing — and let Claude Code handle the implementation. From unit tests to E2E, from mocking to CI pipelines, build software you can trust at AI speed.

48
lessons
8
modules
English · Spanish
available in
Free
access
NIEVA

Outcomes

What you'll be able to do

  • Apply spec-first methodology: define tests as specifications before any implementation
  • Generate professional unit tests with Claude Code using pytest
  • Build complete test pyramids: unit, integration, and E2E tests
  • Execute the full TDD cycle (red-green-refactor) with Claude Code as implementer
  • Achieve 90%+ coverage with AI-assisted edge case discovery
  • Create mocking strategies, reusable fixtures, and automated validation loops
  • Set up CI pipelines with GitHub Actions for automated testing
  • Build a complete application 100% with TDD + Claude Code

Before you start

What you need to bring

It's for you if...

  • Developers using Claude Code who want a systematic method to validate AI-generated code
  • Teams adopting agentic development who need testing standards and quality gates
  • Professionals who know testing but want to integrate AI into their TDD workflow
  • Python developers who want to accelerate test writing without sacrificing quality
  • Anyone building with AI tools who wants confidence that generated code actually works

Requirements and materials

  • Completed guides #1-6 of the Claude Code Agentic Development Path (or equivalent Claude Code experience)
  • Intermediate Python (functions, classes, modules, error handling)
  • Basic pytest familiarity (helpful but not required — reinforced in Module 2)
  • Git and GitHub basics (commits, push, pull requests)
  • No prior TDD experience required (taught from scratch)

Content

The syllabus, module by module

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Common questions

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