vendor/rails/activerecord/test/cases/class_inheritable_attributes_test.rb

   1 require 'test/unit'
   2 require "cases/helper"
   3 require 'active_support/core_ext/class/inheritable_attributes'
   4
   5 class A
   6   include ClassInheritableAttributes
   7 end
   8
   9 class B < A
  10   write_inheritable_array "first", [ :one, :two ]
  11 end
  12
  13 class C < A
  14   write_inheritable_array "first", [ :three ]
  15 end
  16
  17 class D < B
  18   write_inheritable_array "first", [ :four ]
  19 end
  20
  21
  22 class ClassInheritableAttributesTest < ActiveRecord::TestCase
  23   def test_first_level
  24     assert_equal [ :one, :two ], B.read_inheritable_attribute("first")
  25     assert_equal [ :three ], C.read_inheritable_attribute("first")
  26   end
  27
  28   def test_second_level
  29     assert_equal [ :one, :two, :four ], D.read_inheritable_attribute("first")
  30     assert_equal [ :one, :two ], B.read_inheritable_attribute("first")
  31   end
  32 end