path: root/activerecord/test/cases/validations/absence_validation_test.rb

require "cases/helper"
require 'models/face'
require 'models/interest'
require 'models/man'
require 'models/topic'

class AbsenceValidationTest < ActiveRecord::TestCase
  def test_non_association
    boy_klass = Class.new(Man) do
      def self.name; "Boy" end
      validates_absence_of :name
    end

    assert boy_klass.new.valid?
    assert_not boy_klass.new(name: "Alex").valid?
  end

  def test_has_one_marked_for_destruction
    boy_klass = Class.new(Man) do
      def self.name; "Boy" end
      validates_absence_of :face
    end

    boy = boy_klass.new(face: Face.new)
    assert_not boy.valid?, "should not be valid if has_one association is present"
    assert_equal 1, boy.errors[:face].size, "should only add one error"

    boy.face.mark_for_destruction
    assert boy.valid?, "should be valid if association is marked for destruction"
  end

  def test_has_many_marked_for_destruction
    boy_klass = Class.new(Man) do
      def self.name; "Boy" end
      validates_absence_of :interests
    end
    boy = boy_klass.new
    boy.interests << [i1 = Interest.new, i2 = Interest.new]
    assert_not boy.valid?, "should not be valid if has_many association is present"

    i1.mark_for_destruction
    assert_not boy.valid?, "should not be valid if has_many association is present"

    i2.mark_for_destruction
    assert boy.valid?
  end

  def test_does_not_call_to_a_on_associations
    boy_klass = Class.new(Man) do
      def self.name; "Boy" end
      validates_absence_of :face
    end

    face_with_to_a = Face.new
    def face_with_to_a.to_a; ['(/)', '(\)']; end

    assert_nothing_raised { boy_klass.new(face: face_with_to_a).valid? }
  end

  def test_validates_absence_of_virtual_attribute_on_model
    repair_validations(Interest) do
      Interest.send(:attr_accessor, :token)
      Interest.validates_absence_of(:token)

      interest = Interest.create!(topic: 'Thought Leadering')
      assert interest.valid?

      interest.token = 'tl'

      assert interest.invalid?
    end
  end
end