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RSpec

DevDev notes

  • RSpec shared examples are a way of DRY-ing up specs. A shared example describes some behaviour that is common between specs

    • the shared examples are pulled into a context using either include_examples or it_behaves_like
    • include_examples simply pastes the shared examples into the current scope "blindly"
    • it_behaves_like will pull in the shared examples into a new context block

  • subject defaults to an instance of the described class under test

  • SPIES: you can ensure that an object has received a method, and with certain arguments. Some examples:

    • expect(MyObject).to have_received(:a_method).(3).times
    • expect(MyObject).to have_received(:a_method).with("an_argument")

  • Check out this article by Martin Fowler: https://martinfowler.com/articles/mocksArentStubs.html#TheDifferenceBetweenMocksAndStubs

  • Shane recommends checking out Haskell, which is a functional programming language

  • "Domain Driven Design Quickly" - check out this book

  • If you want to try DDD, think about it carefully and also be familiar with SOLID principles