Don't share attribute matchers between classes [#3216 state:resolved]

Allows separate models that include ActiveModel::AttributeMethods to
use different sets of attribute matchers.

Signed-off-by: Joshua Peek <josh@joshpeek.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/activemodel/test/cases/attribute_methods_test.rb b/activemodel/test/cases/attribute_methods_test.rb
new file mode 100644
index 0000000000..614c4a3645
--- /dev/null
+++ b/activemodel/test/cases/attribute_methods_test.rb
@@ -0,0 +1,20 @@
+require 'cases/helper'
+
+class ModelWithAttributes
+  include ActiveModel::AttributeMethods
+  
+  attribute_method_suffix ''
+end
+
+class ModelWithAttributes2
+  include ActiveModel::AttributeMethods
+  
+  attribute_method_suffix '_test'
+end
+
+class AttributeMethodsTest < ActiveModel::TestCase
+  test 'unrelated classes should not share attribute method matchers' do
+    assert_not_equal ModelWithAttributes.send(:attribute_method_matchers),
+                     ModelWithAttributes2.send(:attribute_method_matchers)
+  end
+end