1 files changed, 18 insertions, 4 deletions
diff --git a/spec/ruby/core/encoding/inspect_spec.rb b/spec/ruby/core/encoding/inspect_spec.rb
index 9a930b2a77..ab7f8cf9fc 100644
--- a/spec/ruby/core/encoding/inspect_spec.rb
+++ b/spec/ruby/core/encoding/inspect_spec.rb
@@ -2,12 +2,26 @@ require_relative '../../spec_helper'
 
 describe "Encoding#inspect" do
   it "returns a String" do
-    Encoding::UTF_8.inspect.should be_an_instance_of(String)
+    Encoding::UTF_8.inspect.should.instance_of?(String)
   end
 
-  it "returns #<Encoding:name> for a non-dummy encoding named 'name'" do
-    Encoding.list.to_a.reject {|e| e.dummy? }.each do |enc|
-      enc.inspect.should =~ /#<Encoding:#{enc.name}>/
+  ruby_version_is ""..."3.4" do
+    it "returns #<Encoding:name> for a non-dummy encoding named 'name'" do
+      Encoding.list.to_a.reject {|e| e.dummy? }.each do |enc|
+        enc.inspect.should =~ /#<Encoding:#{enc.name}>/
+      end
+    end
+  end
+
+  ruby_version_is "3.4" do
+    it "returns #<Encoding:name> for a non-dummy encoding named 'name'" do
+      Encoding.list.to_a.reject {|e| e.dummy? }.each do |enc|
+        if enc.name == "ASCII-8BIT"
+          enc.inspect.should == "#<Encoding:BINARY (ASCII-8BIT)>"
+        else
+          enc.inspect.should =~ /#<Encoding:#{enc.name}>/
+        end
+      end
     end
   end