Unit Testing a Workflow

workflow_spec.rb

describe Document do
  context "with a scan" do
    subject {FactoryGirl.build(:scannable)}
    it {should have_events([:scan])}
  end
  
  context "taggable" do
    subject { FactoryGirl.build(:taggable) }

    it {should have_events([:to_edit])}
    
    [:complete, :incomplete, :checker_reject, :checker_accept, :user_reject, :user_accept].each do |e|
      it {should_not have_event(e)}
    end
    
  end
  
  context "editing" do
    subject {FactoryGirl.build(:editing)}
    it { should have_events([:tag_complete, :tag_incomplete, :tag_illegible, :user_accept])}
  end
  
  context "completed" do
    subject {FactoryGirl.build(:completed)}
    it { should have_events([:to_edit, :checker_accept, :checker_reject])}
  end
  
  context "incomplete" do
    subject {FactoryGirl.build(:incomplete)}
    it { should have_events([:to_edit, :tag_complete, :tag_incomplete, :tag_illegible])}
  end
  
  context "checker rejected" do
    subject {FactoryGirl.build(:checker_rejected)}
    it { should have_events([:to_edit]) }
  end        
  
  context "checker accepted" do
    subject {FactoryGirl.build(:checker_accepted)}
    it { should have_events([:to_edit, :user_reject, :user_accept]) }
  end
  
  context "user accepted" do
    subject {FactoryGirl.build(:user_accepted, :user => @customer)}
    it { should have_events([:to_edit])}
  end

  context "it should check authorization" do
    @a = Ability.new
    @a.stub(:can?).and_return(false)
    @doc = FactoryGirl.create(:document)
    expect {@doc.scan!(@a)}.to raise_error
  end

end