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-rw-r--r--activemodel/test/cases/serializers/json_serialization_test.rb10
1 files changed, 10 insertions, 0 deletions
diff --git a/activemodel/test/cases/serializers/json_serialization_test.rb b/activemodel/test/cases/serializers/json_serialization_test.rb
index 40fdcf20ca..a754d610b9 100644
--- a/activemodel/test/cases/serializers/json_serialization_test.rb
+++ b/activemodel/test/cases/serializers/json_serialization_test.rb
@@ -206,4 +206,14 @@ class JsonSerializationTest < ActiveModel::TestCase
assert_no_match %r{"preferences":}, json
end
+ test "custom as_json options should be extendible" do
+ def @contact.as_json(options = {}); super(options.merge(:only => [:name])); end
+ json = @contact.to_json
+
+ assert_match %r{"name":"Konata Izumi"}, json
+ assert_no_match %r{"created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}}, json
+ assert_no_match %r{"awesome":}, json
+ assert_no_match %r{"preferences":}, json
+ end
+
end