public void verifyListener(DelegateListener<? extends BaseDelegateExecution> listener) {
assertTrue(listener instanceof ScriptCaseExecutionListener);
ScriptCaseExecutionListener scriptListener = (ScriptCaseExecutionListener) listener;
ExecutableScript executableScript = scriptListener.getScript();
assertNotNull(executableScript);
assertEquals(SCRIPT_FORMAT, executableScript.getLanguage());
}