1 files changed, 72 insertions, 0 deletions
diff --git a/spec/ruby/core/io/shared/pos.rb b/spec/ruby/core/io/shared/pos.rb
new file mode 100644
index 0000000000..fef7ab2bf7
--- /dev/null
+++ b/spec/ruby/core/io/shared/pos.rb
@@ -0,0 +1,72 @@
+describe :io_pos, shared: true do
+  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.send(@method).should == 0
+      f.read 1
+      f.send(@method).should == 1
+      f.read 2
+      f.send(@method).should == 3
+    end
+  end
+
+  it "raises IOError on closed stream" do
+    lambda { IOSpecs.closed_io.send(@method) }.should raise_error(IOError)
+  end
+
+  it "resets #eof?" do
+    open @fname do |io|
+      io.read 1
+      io.read 1
+      io.send(@method)
+      io.eof?.should == false
+    end
+  end
+end
+
+describe :io_set_pos, shared: true do
+  before :each do
+    @fname = tmp('test.txt')
+    File.open(@fname, 'w') { |f| f.write "123" }
+  end
+
+  after :each do
+    rm_r @fname
+  end
+
+  it "sets the offset" do
+    File.open @fname do |f|
+      val1 = f.read 1
+      f.send @method, 0
+      f.read(1).should == val1
+    end
+  end
+
+  it "converts arguments to Integers" do
+    File.open @fname do |io|
+      o = mock("o")
+      o.should_receive(:to_int).and_return(1)
+
+      io.send @method, o
+      io.pos.should == 1
+    end
+  end
+
+  it "does not accept Bignums that don't fit in a C long" do
+    File.open @fname do |io|
+      lambda { io.send @method, 2**128 }.should raise_error(RangeError)
+    end
+  end
+
+  it "raises IOError on closed stream" do
+    lambda { IOSpecs.closed_io.send @method, 0 }.should raise_error(IOError)
+  end
+end