require File.expand_path('../../../spec_helper', __FILE__) describe "Kernel#__dir__" do it "returns the real name of the directory containing the currently-executing file" do __dir__.should == File.realpath(File.dirname(__FILE__)) end context "when used in eval with top level binding" do it "returns the real name of the directory containing the currently-executing file" do eval("__dir__", binding).should == File.realpath(File.dirname(__FILE__)) end end end