Update to ruby/spec@a0b7d0d

1 files changed, 5 insertions, 0 deletions

diff --git a/spec/ruby/core/io/internal_encoding_spec.rb b/spec/ruby/core/io/internal_encoding_spec.rb
index 10ebf28707..210e969c7b 100644
--- a/spec/ruby/core/io/internal_encoding_spec.rb
+++ b/spec/ruby/core/io/internal_encoding_spec.rb
@@ -1,4 +1,5 @@
 require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
 
 describe :io_internal_encoding, shared: true do
   describe "when Encoding.default_internal is not set" do
@@ -112,6 +113,10 @@ describe "IO#internal_encoding" do
     Encoding.default_internal = @internal
   end
 
+  it "raises an IOError on closed stream" do
+    -> { IOSpecs.closed_io.internal_encoding }.should raise_error(IOError)
+  end
+
   describe "with 'r' mode" do
     it_behaves_like :io_internal_encoding, nil, "r"
   end