Method: Fast.experiment

Defined in:
lib/fast/experiment.rb

.experiment(name, &block) ⇒ Object

Fast.experiment is a shortcut to define new experiments and allow them to work together in experiment combinations.

The following experiment look into ‘spec` folder and try to remove `before` and `after` blocks on testing code. Sometimes they’re not effective and we can avoid the hard work of do it manually.

If the spec does not fail, it keeps the change.

Examples:

Remove useless before and after block

Fast.experiment("RSpec/RemoveUselessBeforeAfterHook") do
  lookup 'spec'
  search "(block (send nil {before after}))"
  edit { |node| remove(node.loc.expression) }
  policy { |new_file| system("rspec --fail-fast #{new_file}") }
end



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# File 'lib/fast/experiment.rb', line 25

def experiment(name, &block)
  @experiments ||= {}
  @experiments[name] = Experiment.new(name, &block)
end