Outside-in TDD with Test Doubles
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The document discusses software design patterns, focusing on interfaces related to sales and barcode scanning functionalities. It compares and contrasts different testing concepts such as stubs, spies, and mocks. Additionally, it mentions display elements like lcd2x16display and spydisplay, indicating their roles in showing information.
Outside-in TDD with Test Doubles
- 2. Wri a l un s Mak te p Ref r
- 3. Wri a l un s Mak te p Ref r Wri a l ac t e t
- 5. Sale + scan(barcode: String) Lcd2x16Display + showLine(line: String)
- 6. Sale + scan(barcode: String) <<interface>> Display + showLine(line: String) Lcd2x16Display + showLine(line: String)
- 8. Sale + scan(barcode: String) <<interface>> Display + showLine(line: String) Lcd2x16Display + showLine(line: String) SpyDisplay - lastLine: String + showLine(line: String) + getLastLine(): String
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- 13. Stub vs Spy vs Mock
- 17. ● ● ● ● ● ●