Neat Class.all pattern

team.rb

class Team
  TEAMS = []
  attr_reader :name

  def initialize(params)
    @name = params[:team][:name]
    TEAMS << self
  end

  def self.all
    TEAMS
  end
end

# allows you to create multiple instances of the model and do Team.all in a rails-y way with no database.

I'm having trouble in my RSpec tests with this so have abandoned it for now; the constant was remaining populated throughout multiple examples and not 'resetting'. I couldn't reset it manually because Ruby won't do dynamic assignment (there is a hacky way around this but I don't like 'hacky'!), and I couldn't work out how to make the file reload (a 'require' in the before/each block didn't work), thinking that might have sorted it.