require "spec_helper"

class Foo
  include Mongoid::Document
  field :range, type: Array
end

describe "Mongoid::Document" do

  before do
    [ Foo ].each(&:delete_all)
  end
  
  describe "field" do
  
    let(:foo) do
      Foo.new
    end
    
    it "saves the relationship" do
      foo.range = [1000.0, 1000.0]
      foo.save! # works
      foo.range = nil
      foo.save! # fails
    end
    
  end
  
end

     Failure/Error: foo.save!
     NoMethodError:
       undefined method `-' for nil:NilClass
     # ./lib/mongoid/dirty.rb:120:in `block (2 levels) in setters'
     # ./lib/mongoid/dirty.rb:114:in `each_pair'
     # ./lib/mongoid/dirty.rb:114:in `block in setters'
     # ./lib/mongoid/dirty.rb:113:in `tap'
     # ./lib/mongoid/dirty.rb:113:in `setters'