rspec_table_spec.rb

RSpec.describe "Using a table for multiple examples" do
  def self.define_data_table(name, table_doc)
    fields, *records = *table_doc.lines.map { |l| l.split('|').map(&:strip).reject(&:empty?) }
    define_singleton_method(name) { records.map { |r| Hash[fields.map(&:to_sym).zip(r)] } }
  end

  define_data_table(:users, <<~USERS)
    | name   | email              | twitter         |
    | Aslak  | aslak@cucumber.io  | @aslak_hellesoy |
    | Julien | julien@cucumber.io | @jbpros         |
    | Matt   | matt@cucumber.io   | @mattwynne      |
  USERS

  users.each do |user|
    it "should have the correct email for #{user[:name]}" do
      expect(user[:email]).to eq("#{user[:name].downcase}@cucumber.io")
    end
  end
end