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Practice

Seams & Doubles — Practice

⭐⭐ intermediate~20 min of coding3 challenges

Build spies by hand, stub async collaborators, and design injection seams that make code testable.

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What you will practice

  1. Hand-Rolled Spy⭐⭐ intermediate
  2. Async Collaborator Stub⭐⭐ intermediate
  3. Injection Seam⭐⭐ intermediate

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