From 65dc35a58245f9afa529803450318c8067bca786 Mon Sep 17 00:00:00 2001
From: charliesome <charliesome@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 18 Jun 2013 14:01:32 +0000
Subject: * vm_insnhelper.c (vm_call_method): ensure methods of type  
 VM_METHOD_TYPE_ATTR_SET are called with 1 argument

* test/ruby/test_module.rb (class TestModule): add test

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41389 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_module.rb | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'test')

diff --git a/test/ruby/test_module.rb b/test/ruby/test_module.rb
index 5574bf0567..361a6fe993 100644
--- a/test/ruby/test_module.rb
+++ b/test/ruby/test_module.rb
@@ -1167,6 +1167,14 @@ class TestModule < Test::Unit::TestCase
     assert_equal(1, c.x, bug3406)
   end
 
+  def test_attr_writer_with_no_arguments
+    bug8540 = "[ruby-core:55543]"
+    c = Class.new do
+      attr_writer :foo
+    end
+    assert_raise(ArgumentError) { c.new.send :foo= }
+  end
+
   def test_private_constant
     c = Class.new
     c.const_set(:FOO, "foo")
-- 
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