1 files changed, 11 insertions, 0 deletions
diff --git a/spec/ruby/core/io/io_spec.rb b/spec/ruby/core/io/io_spec.rb
new file mode 100644
index 0000000000..0feb1a8774
--- /dev/null
+++ b/spec/ruby/core/io/io_spec.rb
@@ -0,0 +1,11 @@
+require_relative '../../spec_helper'
+
+describe "IO" do
+  it "includes File::Constants" do
+    IO.include?(File::Constants).should == true
+  end
+
+  it "includes Enumerable" do
+    IO.include?(Enumerable).should == true
+  end
+end