public void ShouldRenderTheExistingPackagedCssBundleInsteadOfCreatingANewOne()
        {
            var testFile = "/myfilename_combined_3_234448i484884844848848484484844848.css";

            PackagerTests.delete_all_the_test_files();
            PackagerTests.write_a_test_file_to_the_file_system(testFile);

            //make sure the file reader does not try to load the added files

            var tag = cssBundle
                      .Add("~/css/test.css")
                      .AsPackageable()
                      .Render("~/myfilename_combined_#.css");

            Assert.AreEqual("<link rel=\"stylesheet\" type=\"text/css\"  href=\"/myfilename_combined_3_234448i484884844848848484484844848.css\" />", tag);
        }
        public void ShouldRenderTheExistingPackagedJavaScriptBundleInsteadOfCreatingANewOne()
        {
            var testFile = "/myfilename_combined_3_234448i484884844848848484484844848.js";

            PackagerTests.delete_all_the_test_files();
            PackagerTests.write_a_test_file_to_the_file_system(testFile);

            //make sure the file reader does not try to load the added files

            var tag = javaScriptBundle
                      .Add("~/js/test.js")
                      .AsPackageable()
                      .Render("~/myfilename_combined_#.js");

            Assert.AreEqual("<script type=\"text/javascript\" src=\"/myfilename_combined_3_234448i484884844848848484484844848.js\"></script>", tag);
        }