Move spec/rubyspec to spec/ruby for consistency

* Other ruby implementations use the spec/ruby directory.
  [Misc #13792] [ruby-core:82287]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

spec/ruby/core/io/output_spec.rb

@@ -0,0 +1,27 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes', __FILE__)
+
+describe "IO#<<" do
+  it "writes an object to the IO stream" do
+    lambda {
+      $stderr << "Oh noes, an error!"
+    }.should output_to_fd("Oh noes, an error!", $stderr)
+  end
+
+  it "calls #to_s on the object to print it" do
+    lambda {
+      $stderr << 1337
+    }.should output_to_fd("1337", $stderr)
+  end
+
+  it "raises an error if the stream is closed" do
+    io = IOSpecs.closed_io
+    lambda { io << "test" }.should raise_error(IOError)
+  end
+
+  it "returns self" do
+    lambda {
+      ($stderr << "to_stderr").should == $stderr
+    }.should output(nil, "to_stderr")
+  end
+end