lib/ostruct.rb: Use frozen literals.

Patch adapted from Espartaco Palma. [GH-1714] [Bug #14000]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60406 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 0 deletions

diff --git a/test/ostruct/test_ostruct.rb b/test/ostruct/test_ostruct.rb
index 32eb73a89d..24ffb77380 100644
--- a/test/ostruct/test_ostruct.rb
+++ b/test/ostruct/test_ostruct.rb
@@ -52,12 +52,14 @@ class TC_OpenStruct < Test::Unit::TestCase
     foo.bar = 1
     foo.baz = 2
     assert_equal("#<OpenStruct bar=1, baz=2>", foo.inspect)
+    assert_equal(false, foo.inspect.frozen?)
 
     foo = OpenStruct.new
     foo.bar = OpenStruct.new
     assert_equal('#<OpenStruct bar=#<OpenStruct>>', foo.inspect)
     foo.bar.foo = foo
     assert_equal('#<OpenStruct bar=#<OpenStruct foo=#<OpenStruct ...>>>', foo.inspect)
+    assert_equal(false, foo.inspect.frozen?)
   end
 
   def test_frozen