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Driver and Stub

Driver and Stub. Testing and Debugging Functions -- Driver. Each function should be tested as a separate unit Testing individual functions facilitates finding mistakes Driver programs allow testing of individual functions

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Driver and Stub

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  1. Driver and Stub

  2. Testing and Debugging Functions -- Driver • Each function should be tested as a separate unit • Testing individual functions facilitates finding mistakes • Driver programs allow testing of individual functions • Once a function is tested, it can be used in the driver program to test other functions • Function get_input is tested in the driver program

  3. Testing and Debugging Functions -- Stub • When a function being tested calls other functionsthat are not yet tested, use a stub • A stub is a simplified version of a function • Stubs are usually provide values for testing ratherthan perform the intended calculation • Stubs should be so simple that you have confidencethey will perform correctly • Function price is used as a stub to test the rest of the supermarket pricing program.

  4. Function Exercises

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