attribute_will_change! in mongoid-2.3 and earlier

rspec-spec

.....FF....FF

Failures:

  1) Widget without control changes 
     Failure/Error: its(:changes) { should include("ferocious") }
       expected {} to include "ferocious"
       Diff:
       @@ -1,2 +1,2 @@
       -ferocious
       +{}
     # ./spec/models/widget_spec.rb:36:in `block (3 levels) in <top (required)>'

  2) Widget without control ferocious_changed? 
     Failure/Error: its(:ferocious_changed?) { should be_true }
       expected false to be true
     # ./spec/models/widget_spec.rb:37:in `block (3 levels) in <top (required)>'

  3) Widget with control changes 
     Failure/Error: its(:changes) { should include("ferocious") }
       expected {"control"=>[false, true]} to include "ferocious"
       Diff:
       @@ -1,2 +1,2 @@
       -ferocious
       +{"control"=>[false, true]}
     # ./spec/models/widget_spec.rb:52:in `block (3 levels) in <top (required)>'

  4) Widget with control ferocious_changed? 
     Failure/Error: its(:ferocious_changed?) { should be_true }
       expected false to be true
     # ./spec/models/widget_spec.rb:53:in `block (3 levels) in <top (required)>'

Finished in 0.03837 seconds
13 examples, 4 failures

Failed examples:

rspec ./spec/models/widget_spec.rb:36 # Widget without control changes 
rspec ./spec/models/widget_spec.rb:37 # Widget without control ferocious_changed? 
rspec ./spec/models/widget_spec.rb:52 # Widget with control changes 
rspec ./spec/models/widget_spec.rb:53 # Widget with control ferocious_changed? 

spec-models-widget_spec.rb

require "spec_helper"

class Widget
  include Mongoid::Document

  field :ferocious,
    :type => Boolean,
    :default => false

  field :control,
    :type => Boolean,
    :default => false
end

describe Widget do

  subject { Widget.create! }

  # When I tell the model that an attribute will change,
  # I expect the model to obey. Let's see what happens.
  before { subject.ferocious_will_change! }

  # Double-Check:
  its(:changed?) { should be_true }

  context "without control" do
    # Double-Check:
    its(:changed) { should_not include("control") }
    its(:changes) { should_not include("control") }
    its(:control_changed?) { should_not be_true }

    # Passing:
    its(:changed) { should include("ferocious") }

    # Failing:
    its(:changes) { should include("ferocious") }
    its(:ferocious_changed?) { should be_true }
  end

  context "with control" do
    before { subject.control = true }

    # Double-Check:
    its(:changed) { should include("control") }
    its(:changes) { should include("control") }
    its(:control_changed?) { should be_true }

    # Passing:
    its(:changed) { should include("ferocious") }

    # Failing:
    its(:changes) { should include("ferocious") }
    its(:ferocious_changed?) { should be_true }
  end

end