fix string interpolation

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@10025 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 2 deletions

diff --git a/test/ruby/test_objectspace.rb b/test/ruby/test_objectspace.rb
index dab94688ee..14d44f0b39 100644
--- a/test/ruby/test_objectspace.rb
+++ b/test/ruby/test_objectspace.rb
@@ -5,12 +5,13 @@ class TestObjectSpace < Test::Unit::TestCase
     /:(\d+)/ =~ caller[0]
     file = $`
     line = $1.to_i
-    eval <<"End", binding, file, line
+    code = <<"End"
     define_method("test_id2ref_#{line}") {\
       o = ObjectSpace._id2ref(obj.object_id);\
-      assert_equal(obj, o, "didn't round trip: #{obj.inspect}");\
+      assert_equal(obj, o, "didn't round trip: \#{obj.inspect}");\
     }
 End
+    eval code, binding, file, line
   end
 
   deftest_id2ref(-0x4000000000000001)