platform_is :windows do require 'win32ole' describe "WIN32OLE_METHOD#offset_vtbl" do before :each do ole_type = WIN32OLE_TYPE.new("Microsoft Scripting Runtime", "File") @m_file_name = WIN32OLE_METHOD.new(ole_type, "name") end it "raises ArgumentError if argument is given" do lambda { @m_file_name.offset_vtbl(1) }.should raise_error ArgumentError end it "returns expected value for Scripting Runtime's 'name' method" do pointer_size = PlatformGuard::POINTER_SIZE @m_file_name.offset_vtbl.should == pointer_size end end end