From 48379c7309a0603186f6a450f73ea2178185589a Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 27 Mar 2009 23:49:52 +0000
Subject: * sprintf.c (rb_str_format): checks if named argument given twice.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@23090 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_sprintf.rb | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_sprintf.rb b/test/ruby/test_sprintf.rb
index c2669a7131..15424d98ac 100644
--- a/test/ruby/test_sprintf.rb
+++ b/test/ruby/test_sprintf.rb
@@ -273,4 +273,10 @@ class TestSprintf < Test::Unit::TestCase
     b2 = (/\.\./ =~ s2) != nil
     assert(b1 == b2, "[ruby-dev:33224]")
   end
+
+  def test_named
+    assert_equal("value", sprintf("%<key>s", :key => "value"))
+    assert_raise(ArgumentError) {sprintf("%1$<key2>s", :key => "value")}
+    assert_raise(ArgumentError) {sprintf("%<key><key2>s", :key => "value")}
+  end
 end
-- 
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