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PlayOwl

Coding · Grade 7

Automated Tests, Debugging and Version History

Learners write automated tests with assert and test functions, design test cases from a specification that catch hidden buggy versions, and follow a systematic debugging process (reproduce, isolate, fix, re-test). They finish by using version history (commits, messages, diffs and reverting) to find when a bug appeared and to keep a project safe.

  • 4 lessons
  • About 85 minutes
  • Check what you learned: 8 questions
  • Ways to answer: choose an answer, put code in order, trace code, highlight a text, match pairs and put in order
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What learners will discover

  • Write automated tests with assert and test functions, and predict whether each test passes or fails.
  • Design test cases from a specification, including edge cases, that catch likely bugs.
  • Apply a systematic debugging process: reproduce, isolate with prints or checks, fix and re-test.
  • Explain version history (commits, messages, diffs, reverting) and use it to find when a bug was introduced.

Lessons

  1. Tests that run themselves 6 steps3 practiceabout 20 min
  2. Designing tests that find bugs 5 steps3 practiceabout 20 min
  3. A debugging process 5 steps3 practiceabout 20 min
  4. Version history 6 steps3 practiceabout 18 min
  5. Check what you learned 8 questions at the end

Keep exploring

Games to practice with

  • Bug DetectiveA robot program almost works. Run it, spot the buggy block, and fix it.
  • Sorting FactoryTurn a work order into if/else rules and watch the conveyor sort every item.
  • Garden AutomationProgram a garden robot with sensor rules — then watch a whole day play out.

More 7th grade coding

Guide for grown-ups