Update to ruby/spec@3d7e563

1 files changed, 5 insertions, 0 deletions

diff --git a/spec/ruby/core/io/readpartial_spec.rb b/spec/ruby/core/io/readpartial_spec.rb
index 2fcfaf5203..176c33cf9e 100644
--- a/spec/ruby/core/io/readpartial_spec.rb
+++ b/spec/ruby/core/io/readpartial_spec.rb
@@ -93,6 +93,11 @@ describe "IO#readpartial" do
     @rd.readpartial(0).should == ""
   end
 
+  it "raises IOError if the stream is closed and the length argument is 0" do
+    @rd.close
+    -> { @rd.readpartial(0) }.should raise_error(IOError, "closed stream")
+  end
+
   it "clears and returns the given buffer if the length argument is 0" do
     buffer = +"existing content"
     @rd.readpartial(0, buffer).should == buffer