How can I configure RSpec for advanced testing scenarios?

How can I configure RSpec for advanced testing scenarios?

You can configure RSpec for advanced scenarios by using custom matchers, shared examples, and hooks. Would you like to know more about any specific feature?

What are custom matchers and how do I create one?

Custom matchers allow you to define your own expectations in a more readable way. You can create one by defining a class that includes RSpec::Matchers and implementing the match method.

Can you give me an example of a custom matcher?

Sure! Here's a simple example:

RSpec::Matchers.define :be_even do
  match do |actual|
    actual.even?
  end
end

You can then use it in your tests like this: expect(4).to be_even.

What are shared examples and when should I use them?

Shared examples allow you to define a set of tests that can be reused across different contexts. Use them when you have common behavior that multiple tests share.