String#uminus dedupes unconditionally

[Feature #14478] [ruby-core:85669]

Thanks-to: Sam Saffron <sam.saffron@gmail.com>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63566 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 5 deletions

diff --git a/spec/ruby/core/string/uminus_spec.rb b/spec/ruby/core/string/uminus_spec.rb
index f79683cb74..f5f77f0d2e 100644
--- a/spec/ruby/core/string/uminus_spec.rb
+++ b/spec/ruby/core/string/uminus_spec.rb
@@ -31,14 +31,12 @@ describe 'String#-@' do
       (-"unfrozen string").should_not equal(-"another unfrozen string")
     end
 
-    it "is an identity function if the string is frozen" do
+    it "deduplicates frozen strings" do
       dynamic = %w(this string is frozen).join(' ').freeze
 
-      (-dynamic).should equal(dynamic)
-
       dynamic.should_not equal("this string is frozen".freeze)
-      (-dynamic).should_not equal("this string is frozen".freeze)
-      (-dynamic).should_not equal(-"this string is frozen".freeze)
+      (-dynamic).should equal("this string is frozen".freeze)
+      (-dynamic).should equal(-"this string is frozen".freeze)
     end
   end
 end