faster_path 0.0.2

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require File.expand_path('../../../../spec_helper', __FILE__)

describe :numeric_real, shared: true do
  before :each do
    @numbers = [
      20,             # Integer
      398.72,         # Float
      Rational(3, 4), # Rational
      bignum_value, # Bignum
      infinity_value,
      nan_value
    ].map{|n| [n,-n]}.flatten
  end

  it "returns self" do
    @numbers.each do |number|
      if number.to_f.nan?
        number.real.nan?.should be_true
      else
        number.real.should == number
      end
    end
  end

  it "raises an ArgumentError if given any arguments" do
   @numbers.each do |number|
     lambda { number.real(number) }.should raise_error(ArgumentError)
   end
  end
end