From 5de340e79f1d11973b7c7bbec82f320fc92b9c99 Mon Sep 17 00:00:00 2001
From: Joshua Peek <josh@joshpeek.com>
Date: Tue, 19 Aug 2008 19:20:10 -0500
Subject: Ensure objects cached with MemoryStore are immutable

---
 activesupport/test/caching_test.rb | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'activesupport/test')

diff --git a/activesupport/test/caching_test.rb b/activesupport/test/caching_test.rb
index ce27b464f8..9ea9389448 100644
--- a/activesupport/test/caching_test.rb
+++ b/activesupport/test/caching_test.rb
@@ -120,4 +120,10 @@ class MemoryStoreTest < Test::Unit::TestCase
   def test_fetch_with_forced_cache_miss
     @cache.fetch('foo', :force => true) { 'bar' }
   end
+
+  def test_store_objects_should_be_immutable
+    @cache.write('foo', 'bar')
+    assert_raise(ActiveSupport::FrozenObjectError) { @cache.read('foo').gsub!(/.*/, 'baz') }
+    assert_equal 'bar', @cache.read('foo')
+  end
 end
-- 
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