Polymorphism as a tool for updating and versioning of software senior casual dating

01-Feb-2017 21:06

polymorphism as a tool for updating and versioning of software-17

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Feaping Creaturitis Driven (FCD) – A project built using FCD never, ever has a cycle that completes appropriately.Just when you can see the horizon, someone on the team adds yet another nozzle or value that they are desperately in love with.Replace them with interfaces and calls to instance methods on injected objects.More Reading Static Methods are Death to Testability Source Vestigial Structures Pattern (VSP) – When features are removed that span multiple tiers, the bits that are no longer used are left behind “just in case.” As in biology, Vestigial Structures are usually in a degenerate, atrophied, or rudimentary condition, and tend to be much more variable than similar parts.Define with the customer what should happen when the unexpected occurs, and treat this behavior like any other feature.Write one test for the “happy (expected) path” but write several tests for various “sad paths” where things could go wrong.If your class has more than one responsibility, it should be split into several classes.

polymorphism as a tool for updating and versioning of software-15

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” “Who would try to put a script file through this image upload form?This is classic “cowboy coder” or “duct tape programmer” thinking, and sometimes management may be OK with dictating that for a given feature or prototype, speed is more important than anything else.However, for typical, long-term projects where someone is going to have to maintain the application for years to come, this can be a very expensive principle to follow.Although structures usually called "vestigial" are largely or entirely functionless, a vestigial structure may retain lesser functions or develop minor new ones. Delete it if it’s not used; if you end up needing it, pull it back out of source control.