Ruby Snippets I Like

good_reads.md

https://www.leanpanda.com/blog/2016/04/11/smart-integration.testing/

Snippets.md

Initialization:
source: https://github.com/jekyll/classifier-reborn/blob/master/lib/classifier-reborn/bayes.rb#L21

def initialize(*args)
  @categories = {}
  options = { language:         'en',
              auto_categorize:  false,
              enable_threshold: false,
              threshold:        0.0,
              enable_stemmer:   true
            }
  args.flatten.each do |arg|
    if arg.is_a?(Hash)
      options.merge!(arg)
    else
      add_category(arg)
    end
  end
end

Let accepts params from later defined let blocks
Source: https://www.leanpanda.com/blog/2015/08/24/machine-learning-automatic-classification/

let(:command) { described_class.new(advertisements, training) }
let(:advertisements) { [build(:advertisement, title: 'foo')] }
let(:training) do
  [
    { title: 'foo baz', category_id: 1 },
  ]
end