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What?
RSpec shared examples are a utility that is used in Ruby applications to cut down on the amount of code repetition that occurs in tests. They let programmers describe a certain action or situation only once and then use it in a number of different tests and specifications. This results in a time saving, a reduction in the complexity of the code, and an increase in the maintainability and readability of the tests.
Shared examples can also take parameters, which makes them more flexible and lets developers use the same example to test a number of different situations. Shared examples, despite the fact that they may have some potential drawbacks, can be an effective tool if they are used appropriately and with naming conventions that are both obvious and consistent.
Why?
Shared examples can be very useful for testing complex applications that have many different behaviors and edge cases. They allow developers to write more comprehensive tests without sacrificing readability or maintainability. By reusing common test examples across multiple tests or specs, developers can save time and reduce the risk of introducing bugs into their code.
DRY principle
By minimizing code duplication in their tests, shared examples help developers…
