require File.dirname(__FILE__) + '/../spec_helper'

describe Spree::DigitalLink do

  context 'validation' do
    it { should belong_to(:digital) }
    it { should belong_to(:line_item) }
    it { should have_valid_factory(:digital_link) }
  end

  context "#create" do
    it "should have an appropriately long secret" do
      FactoryGirl.create(:digital_link).secret.length.should == 30
    end
    
    it "should have the access counter being an Integer on zero" do
      FactoryGirl.create(:digital_link).access_counter.should == 0
    end
  end
  
  context "#update" do
    it "should not change the secret when updated" do
      digital_link = FactoryGirl.create(:digital_link)
      secret = digital_link.secret
      digital_link.increment(:access_counter).save
      digital_link.secret.should == secret
    end
    
    it "should enforce to have an associated digital" do
      link = FactoryGirl.create(:digital_link)
      lambda { link.update_attributes!(:digital => nil) }.should raise_error(ActiveRecord::RecordInvalid)
    end

    it "should not allow an empty or too short secret" do
      link = FactoryGirl.create(:digital_link)
      lambda { link.update_attributes!(:secret => nil) }.should raise_error(ActiveRecord::RecordInvalid)
      lambda { link.update_attributes!(:secret => 'x' * 25) }.should raise_error(ActiveRecord::RecordInvalid)
    end
  end
  
  context "authorization" do
   it "should increment the counter using #authorize!" do
     link = FactoryGirl.create(:digital_link)
     link.access_counter.should == 0
     link.authorize!
     link.access_counter.should == 1
   end
   
   it "should not be #authorized? when the access_counter is too high" do
     link = FactoryGirl.create(:digital_link)
     link.stub(:access_counter => Spree::DigitalConfiguration[:authorized_clicks] - 1)
     link.authorizable?.should be_true
     link.stub(:access_counter => Spree::DigitalConfiguration[:authorized_clicks])
     link.authorizable?.should be_false
   end
      
   it "should not be #authorize! when the created_at date is too far in the past" do
     link = FactoryGirl.create(:digital_link)
     link.authorize!.should be_true
     link.stub(:created_at => (Spree::DigitalConfiguration[:authorized_days] * 24 - 1).hours.ago)
     link.authorize!.should be_true
     link.stub(:created_at => (Spree::DigitalConfiguration[:authorized_days] * 24 + 1).hours.ago)
     link.authorize!.should be_false
   end
   
   it "should not be #authorized? when both access_counter and created_at are invalid" do
     link = FactoryGirl.create(:digital_link)
     link.authorizable?.should be_true
     link.stub(:access_counter => Spree::DigitalConfiguration[:authorized_clicks], :created_at => (Spree::DigitalConfiguration[:authorized_days] * 24 + 1).hours.ago)
     link.authorizable?.should be_false
   end
   
  end
  
end