{"ScriptPreparationCode":"var parent = document.getElementById(\u0022parent\u0022);\r\nvar child = document.getElementById(\u0022child\u0022);\r\n","TestCases":[{"Name":"contains","Code":"parent.contains(child);","IsDeferred":false},{"Name":"selector","Code":"parent.querySelectorAll(\u0022#child\u0022).length;","IsDeferred":false}]}