require File.expand_path('../../../spec_helper', __FILE__) describe :enum_rewind, shared: true do before :each do @enum = 1.upto(3) end it "resets the enumerator to its initial state" do @enum.next.should == 1 @enum.next.should == 2 @enum.rewind @enum.next.should == 1 end it "returns self" do @enum.rewind.should == @enum end it "has no effect on a new enumerator" do @enum.rewind @enum.next.should == 1 end it "has no effect if called multiple, consecutive times" do @enum.next.should == 1 @enum.rewind @enum.rewind @enum.next.should == 1 end it "works with peek to reset the position" do @enum.next @enum.next @enum.rewind @enum.next @enum.peek.should == 2 end end