# Exercise: Writing Unit Tests

Exercise: Writing Unit Tests: Exercise: Writing Unit Tests.

Updated: November 3, 2026

1. [Exercise: Writing Unit Tests](https://www.ask-codey.com/lessons/exercise-writing-unit-tests) (Apprentice): Three finished classes each hide one bug. Plan scenarios from their requirements, write MSTest tests that find the bugs, and fix the code.

Source: https://www.ask-codey.com/courses/csharp-full-stack-bootcamp/topics/exercise-writing-unit-tests