1 files changed, 5 insertions, 35 deletions
diff --git a/spec/ruby/core/string/uminus_spec.rb b/spec/ruby/core/string/uminus_spec.rb
index 3a81b64126..800dca5044 100644
--- a/spec/ruby/core/string/uminus_spec.rb
+++ b/spec/ruby/core/string/uminus_spec.rb
@@ -31,43 +31,13 @@ describe 'String#-@' do
     (-"unfrozen string").should_not equal(-"another unfrozen string")
   end
 
-  ruby_version_is ""..."2.6" do
-    it "does not deduplicate already frozen strings" do
-      dynamic = %w(this string is frozen).join(' ').freeze
+  it "deduplicates frozen strings" do
+    dynamic = %w(this string is frozen).join(' ').freeze
 
-      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_not equal(-"this string is frozen".freeze)
-      (-dynamic).should == "this string is frozen"
-    end
-
-    it "does not deduplicate tainted strings" do
-      dynamic = %w(this string is frozen).join(' ')
-      dynamic.taint
-      (-dynamic).should_not equal("this string is frozen".freeze)
-      (-dynamic).should_not equal(-"this string is frozen".freeze)
-      (-dynamic).should == "this string is frozen"
-    end
-
-    it "does not deduplicate strings with additional instance variables" do
-      dynamic = %w(this string is frozen).join(' ')
-      dynamic.instance_variable_set(:@foo, :bar)
-      (-dynamic).should_not equal("this string is frozen".freeze)
-      (-dynamic).should_not equal(-"this string is frozen".freeze)
-      (-dynamic).should == "this string is frozen"
-    end
-  end
-
-  ruby_version_is "2.6" do
-    it "deduplicates frozen strings" do
-      dynamic = %w(this string is frozen).join(' ').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
+    (-dynamic).should equal("this string is frozen".freeze)
+    (-dynamic).should equal(-"this string is frozen".freeze)
   end
 
   ruby_version_is "3.0" do