32 lines
613 B
Ruby
32 lines
613 B
Ruby
require File.dirname(__FILE__) + '/../../abstract_unit'
|
|
|
|
module AttributeAliasing
|
|
class Content
|
|
attr_accessor :title
|
|
|
|
def title?
|
|
!title.nil?
|
|
end
|
|
end
|
|
|
|
class Email < Content
|
|
alias_attribute :subject, :title
|
|
end
|
|
end
|
|
|
|
class AttributeAliasingTest < Test::Unit::TestCase
|
|
def test_attribute_alias
|
|
e = AttributeAliasing::Email.new
|
|
|
|
assert !e.subject?
|
|
|
|
e.title = "Upgrade computer"
|
|
assert_equal "Upgrade computer", e.subject
|
|
assert e.subject?
|
|
|
|
e.subject = "We got a long way to go"
|
|
assert_equal "We got a long way to go", e.title
|
|
assert e.title?
|
|
end
|
|
end
|