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Testing Overview: The Importance of Contracts and Equivalence Classes in Unit Testing

Explore the significance of contracts, logging, and equivalence classes in unit testing. Learn how preconditions, postconditions, and invariants play a crucial role in software development. Understand the value of regression testing and test-driven development.

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Testing Overview: The Importance of Contracts and Equivalence Classes in Unit Testing

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  1. Chapter 10 Testing

  2. Overview

  3. The First Computer Bug

  4. Fail Early

  5. Contracts

  6. Contracts preconditions - relationships that must hold before a function is executed, postconditions- relationships that must hold after a function is executed, invariants - relationships that must hold while a function is executed.

  7. Contracts

  8. Contracts

  9. Logging

  10. Logging

  11. Log Categories

  12. Logging

  13. Logging

  14. Logging

  15. Logging Output

  16. Unit Testing

  17. Unit Testing

  18. Unit Testing

  19. Unit Testing

  20. Unit Testing

  21. Equivalence Classes The equivalence classes we might consider for this code include: even positive numbers odd positive numbers even negative numbers odd negative numbers zero

  22. Equivalence Classes

  23. Regression Testing

  24. Test Driven Development

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