1 files changed, 30 insertions, 2 deletions
diff --git a/spec/ruby/core/random/default_spec.rb b/spec/ruby/core/random/default_spec.rb
index f9270ac7bb..b4ffcb81f4 100644
--- a/spec/ruby/core/random/default_spec.rb
+++ b/spec/ruby/core/random/default_spec.rb
@@ -1,7 +1,7 @@
 require_relative '../../spec_helper'
 
-ruby_version_is ''...'3.2' do
-  describe "Random::DEFAULT" do
+describe "Random::DEFAULT" do
+  ruby_version_is ''...'3.2' do
     it "returns a random number generator" do
       suppress_warning do
         Random::DEFAULT.should respond_to(:rand)
@@ -13,5 +13,33 @@ ruby_version_is ''...'3.2' do
       seed2 = ruby_exe('p Random::DEFAULT.seed', options: '--disable-gems')
       seed1.should != seed2
     end
+
+    ruby_version_is ''...'3.0' do
+      it "returns a Random instance" do
+        suppress_warning do
+          Random::DEFAULT.should be_an_instance_of(Random)
+        end
+      end
+    end
+
+    ruby_version_is '3.0' do
+      it "refers to the Random class" do
+        suppress_warning do
+          Random::DEFAULT.should.equal?(Random)
+        end
+      end
+
+      it "is deprecated" do
+        -> {
+          Random::DEFAULT.should.equal?(Random)
+        }.should complain(/constant Random::DEFAULT is deprecated/)
+      end
+    end
+  end
+
+  ruby_version_is '3.2' do
+    it "is no longer defined" do
+      Random.should_not.const_defined?(:DEFAULT)
+    end
   end
 end