1 files changed, 33 insertions, 0 deletions
diff --git a/spec/ruby/core/encoding/inspect_spec.rb b/spec/ruby/core/encoding/inspect_spec.rb
new file mode 100644
index 0000000000..df96141db9
--- /dev/null
+++ b/spec/ruby/core/encoding/inspect_spec.rb
@@ -0,0 +1,33 @@
+require_relative '../../spec_helper'
+
+describe "Encoding#inspect" do
+  it "returns a String" do
+    Encoding::UTF_8.inspect.should be_an_instance_of(String)
+  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|
+        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
+
+  it "returns #<Encoding:name (dummy)> for a dummy encoding named 'name'" do
+    Encoding.list.to_a.select {|e| e.dummy? }.each do |enc|
+      enc.inspect.should =~ /#<Encoding:#{enc.name} \(dummy\)>/
+    end
+  end
+end