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Test Driven Development: By Example
book

Test Driven Development: By Example

by Kent Beck
November 2002
Intermediate to advanced
240 pages
5h 9m
English
Addison-Wesley Professional
Content preview from Test Driven Development: By Example

Chapter 8

Makin’ Objects

The two implementations of times() are remarkably similar:

Franc

Click here to view code image

Franc times(int multiplier) {
   return new Franc(amount * multiplier);
}

Dollar

Franc

Click here to view code image

Dollar times(int multiplier) {
   return new Dollar(amount * multiplier);
}

We can take a step toward reconciling them by making them both return a Money:

Franc

Click here to view code image

Money times(int multiplier) {
   return new Franc(amount * multiplier); } ...
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Publisher Resources

ISBN: 0321146530Purchase book