1 files changed, 20 insertions, 0 deletions
diff --git a/spec/ruby/core/io/closed_spec.rb b/spec/ruby/core/io/closed_spec.rb
new file mode 100644
index 0000000000..1f10858e28
--- /dev/null
+++ b/spec/ruby/core/io/closed_spec.rb
@@ -0,0 +1,20 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+
+describe "IO#closed?" do
+  before :each do
+    @io = IOSpecs.io_fixture "lines.txt"
+  end
+
+  after :each do
+    @io.close
+  end
+
+  it "returns true on closed stream" do
+    IOSpecs.closed_io.closed?.should == true
+  end
+
+  it "returns false on open stream" do
+    @io.closed?.should == false
+  end
+end