1 files changed, 12 insertions, 0 deletions
diff --git a/spec/ruby/core/io/to_i_spec.rb b/spec/ruby/core/io/to_i_spec.rb
new file mode 100644
index 0000000000..1d0cf2a1f6
--- /dev/null
+++ b/spec/ruby/core/io/to_i_spec.rb
@@ -0,0 +1,12 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+
+describe "IO#to_i" do
+  it "returns the numeric file descriptor of the given IO object" do
+    $stdout.to_i.should == 1
+  end
+
+  it "raises IOError on closed stream" do
+    -> { IOSpecs.closed_io.to_i }.should.raise(IOError)
+  end
+end