From 3b1c30c99ff1f3f5e970e3fa696d3291d5897bd7 Mon Sep 17 00:00:00 2001
From: Vasiliy Ermolovich <younash@gmail.com>
Date: Fri, 18 May 2012 18:17:43 +0300
Subject: doesn't modify params in SafeBuffer#%

---
 activesupport/test/core_ext/string_ext_test.rb | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'activesupport/test/core_ext')

diff --git a/activesupport/test/core_ext/string_ext_test.rb b/activesupport/test/core_ext/string_ext_test.rb
index eee2caa60e..d3f52c04c4 100644
--- a/activesupport/test/core_ext/string_ext_test.rb
+++ b/activesupport/test/core_ext/string_ext_test.rb
@@ -463,6 +463,13 @@ class OutputSafetyTest < ActiveSupport::TestCase
     assert @other_string.html_safe?
   end
 
+  test "Concatting with % doesn't modify a string" do
+    @other_string = ["<p>", "<b>", "<h1>"]
+    "%s %s %s".html_safe % @other_string
+
+    assert_equal ["<p>", "<b>", "<h1>"], @other_string
+  end
+
   test "Concatting a fixnum to safe always yields safe" do
     string = @string.html_safe
     string = string.concat(13)
-- 
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