1 files changed, 31 insertions, 1 deletions
diff --git a/spec/ruby/core/io/pos_spec.rb b/spec/ruby/core/io/pos_spec.rb
index e6cda2643d..bbe25ce97b 100644
--- a/spec/ruby/core/io/pos_spec.rb
+++ b/spec/ruby/core/io/pos_spec.rb
@@ -3,7 +3,37 @@ require_relative 'fixtures/classes'
 require_relative 'shared/pos'
 
 describe "IO#pos" do
-  it_behaves_like :io_pos, :pos
+  before :each do
+    @fname = tmp('test.txt')
+    File.open(@fname, 'w') { |f| f.write "123" }
+  end
+
+  after :each do
+    rm_r @fname
+  end
+
+  it "gets the offset" do
+    File.open @fname do |f|
+      f.pos.should == 0
+      f.read 1
+      f.pos.should == 1
+      f.read 2
+      f.pos.should == 3
+    end
+  end
+
+  it "raises IOError on closed stream" do
+    -> { IOSpecs.closed_io.pos }.should.raise(IOError)
+  end
+
+  it "resets #eof?" do
+    open @fname do |io|
+      io.read 1
+      io.read 1
+      io.pos
+      io.should_not.eof?
+    end
+  end
 end
 
 describe "IO#pos=" do