1 files changed, 36 insertions, 0 deletions
diff --git a/actionmailer/test/old_base/adv_attr_test.rb b/actionmailer/test/old_base/adv_attr_test.rb
new file mode 100644
index 0000000000..f22d733bc5
--- /dev/null
+++ b/actionmailer/test/old_base/adv_attr_test.rb
@@ -0,0 +1,36 @@
+require 'abstract_unit'
+require 'action_mailer/adv_attr_accessor'
+
+class AdvAttrTest < ActiveSupport::TestCase
+  class Person
+    cattr_reader :protected_instance_variables
+    @@protected_instance_variables = []
+
+    extend ActionMailer::AdvAttrAccessor
+    adv_attr_accessor :name
+  end
+
+  def setup
+    @person = Person.new
+  end
+
+  def test_adv_attr
+    assert_nil @person.name
+    @person.name 'Bob'
+    assert_equal 'Bob', @person.name
+  end
+
+  def test_adv_attr_writer
+    assert_nil @person.name
+    @person.name = 'Bob'
+    assert_equal 'Bob', @person.name
+  end
+
+  def test_raise_an_error_with_multiple_args
+    assert_raise(ArgumentError) { @person.name('x', 'y') }
+  end
+
+  def test_ivar_is_added_to_protected_instnace_variables
+    assert Person.protected_instance_variables.include?('@name')
+  end
+end