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Adding transaction handling to Unit Tests
- 1. Adding transaction handling to Unit Tests The why, the how and the journey
- 2. 1992 - 2012 Deployment was mostly a manual process No unit tests Feature branches VisualWorks & GemStone
- 3. 2012 - 2019 90 % Deployment automated 55000 methods Trunk based development 8000 unit tests
- 4. No transaction handling in unit tests
- 7. Koos Piet Sannie Commit both Koos Sannie Piet Koos Piet Sannie Abort nested Koos Piet Koos Piet Sannie Commit nested, Abort outer (unit tests) Koos Piet Sannie Commit nested, Abort nested, Commit outer Koos Sannie Piet Marie 1 2 bT bNT cT cT
- 8. Auto mode
- 9. Transaction level 2 Transaction level 1 beginTransaction abortTransaction beginNestedTransaction Check transaction level Transaction level 2 Transaction level 1 abortTransaction abortTransaction beginNestedTransaction Check transaction level
- 10. Transaction level 2 Transaction level 1 commitTransaction commitTransaction beginNestedTransaction Check transaction level Transaction level 2 Transaction level 1 inTransaction Check transaction level
- 11. Manual mode
- 12. Transaction level 2 Transaction level 1 beginTransaction System abortTransaction System beginNestedTransaction Check transaction level Transaction level 2 Transaction level 1 abortTransactionSystem abortTransaction System beginNestedTransaction Check transaction level beginTransactionExplicityCalled := true beginTransactionExplicityCalled := false
- 13. Transaction level 2 Transaction level 1 commitTransaction commitTransaction beginNestedTransaction Check transaction level Transaction level 2 Transaction level 1 inTransaction Check transaction level Check beginTransactionExplicityCalled beginTransactionExplicityCalled := false Check beginTransactionExplicityCalled
- 14. Commit fails
- 15. methodA self commit self methodB methodB self commit methodA self methodB methodB self commit
- 16. Using framework Commit test setup (especially when in manual mode) Override defaultTransactionMode
- 17. Limitations Can’t use nested transactions in our production code Canonical framework