require 'spec_helper'

describe NotEqualsValidator do

  # Undo validations after each test
  before { Test.reset_callbacks(:validate) }
  
  context "without an :allow_nil key given:" do

    before { Test.validates :finish, not_equals: { to: :start }}
    let!(:test) { Test.new }

    context "if the attributes' values differ" do

      before do
        test.start = 2.days.ago.to_date
        test.finish = 1.day.ago.to_date
      end

      it "validation passes" do
        test.should be_valid
        test.errors.should be_blank
      end
    end

    context "if the attributes' values are equal" do

      before { test.start = test.finish = 1.day.ago.to_date }

      it "validation fails" do
        test.should_not be_valid
        test.errors.should_not be_blank
      end
    end

    context "if both the attributes' values aren't set" do

      before do
        test.start  = nil
        test.finish = nil
      end

      it "validation fails" do
        test.should_not be_valid
        test.errors.should_not be_blank
      end
    end
  end

  context "with an :allow_nil option set to true:" do

    before { Test.validates :finish, not_equals: { to: :start, allow_nil: true }}
    let!(:test) { Test.new }

    context "if both the attributes' values aren't set" do

      before do
        test.start  = nil
        test.finish = nil
      end

      it "validation passes" do
        test.should be_valid
        test.errors.should be_blank
      end
    end
  end
end