2 files changed, 6 insertions, 2 deletions
diff --git a/spec/ruby/core/enumerator/chain/initialize_spec.rb b/spec/ruby/core/enumerator/chain/initialize_spec.rb
index 69484dfcb4..daa30351d7 100644
--- a/spec/ruby/core/enumerator/chain/initialize_spec.rb
+++ b/spec/ruby/core/enumerator/chain/initialize_spec.rb
@@ -22,10 +22,10 @@ describe "Enumerator::Chain#initialize" do
   end
 
   describe "on frozen instance" do
-    it "raises a RuntimeError" do
+    it "raises a FrozenError" do
       -> {
         @uninitialized.freeze.send(:initialize)
-      }.should raise_error(RuntimeError)
+      }.should raise_error(FrozenError)
     end
   end
 end
diff --git a/spec/ruby/core/enumerator/chain/inspect_spec.rb b/spec/ruby/core/enumerator/chain/inspect_spec.rb
index a0450c808a..9b5a442b75 100644
--- a/spec/ruby/core/enumerator/chain/inspect_spec.rb
+++ b/spec/ruby/core/enumerator/chain/inspect_spec.rb
@@ -11,4 +11,8 @@ describe "Enumerator::Chain#inspect" do
     obj.should_receive(:inspect).and_return('some desc')
     Enumerator::Chain.new(obj).inspect.should == "#<Enumerator::Chain: [some desc]>"
   end
+
+  it "returns a not initialized representation if #initialized is not called yet" do
+    Enumerator::Chain.allocate.inspect.should == "#<Enumerator::Chain: uninitialized>"
+  end
 end