private TestScriptEngine testScriptEngine;
    private ScriptEngineFactory scriptEngineFactory;

    @Override
    public void setUp() throws Exception {
        super.setUp();
        scriptEngineFactory = new ScriptEngineFactory();
        ComponentUtil.register(scriptEngineFactory, "scriptEngineFactory");
        testScriptEngine = new TestScriptEngine();
    }

    @Override

        super.setUp();
        scriptExecutor = new ScriptExecutor();
        scriptEngineFactory = new ScriptEngineFactory();
        testScriptEngine = new TestScriptEngine();
        ComponentUtil.register(scriptEngineFactory, "scriptEngineFactory");
    }

    @Override
    public void tearDown() throws Exception {
        ComponentUtil.register(null, "scriptEngineFactory");
        super.tearDown();
    }

        scriptEngineFactory.add("engine1", engine1);
        scriptEngineFactory.add("engine2", engine2);
        scriptEngineFactory.add("custom", customEngine);

        // Verify all engines are accessible by their registered names
        assertEquals(engine1, scriptEngineFactory.getScriptEngine("engine1"));
        assertEquals(engine2, scriptEngineFactory.getScriptEngine("engine2"));