activerecord/test/class_inheritable_attributes_test.rb


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33

$:.unshift(File.dirname(__FILE__) + '/../lib')

require 'test/unit'
require 'active_record/support/class_inheritable_attributes'

class A
  include ClassInheritableAttributes
end

class B < A
  write_inheritable_array "first", [ :one, :two ]
end

class C < A
  write_inheritable_array "first", [ :three ]
end

class D < B
  write_inheritable_array "first", [ :four ]
end


class ClassInheritableAttributesTest < Test::Unit::TestCase
  def test_first_level
    assert_equal [ :one, :two ], B.read_inheritable_attribute("first")
    assert_equal [ :three ], C.read_inheritable_attribute("first")
  end
  
  def test_second_level
    assert_equal [ :one, :two, :four ], D.read_inheritable_attribute("first")
    assert_equal [ :one, :two ], B.read_inheritable_attribute("first")
  end
end