Katrina Owen Sandi Metz

99 Bottles of OOP

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209 printed pages
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Quotes

  • b0405531252has quoted3 years ago
    Alignment - Steer towards the average heading of neighbors

    Separation - Don’t get too close to a neighbor

    Cohesion - Steer towards the average position of the flock
  • b0405531252has quoted3 years ago
    , if you rearrange code without changing behavior and tests begin to fail, then the tests themselves are flawed. Tests that make assertions about how things are done, rather than what actually happens, are the prime contributors to this predicament.
  • b0405531252has quoted3 years ago
    The "open" principle says that you should not conflate the process of moving code around, of refactoring, with the act of adding new features. You should instead separate these two operations. When faced with a new requirement, first rearrange the existing code such that it’s open to the new feature, and once that’s complete, then add the new code.

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