public void test_add_multipleSameNameSequential() {
        TestScriptEngine engine1 = new TestScriptEngine("v1");
        TestScriptEngine engine2 = new TestScriptEngine("v2");
        TestScriptEngine engine3 = new TestScriptEngine("v3");

        scriptEngineFactory.add("engine", engine1);
        scriptEngineFactory.add("engine", engine2);

        Map<String, Object> lastParams = testScriptEngine.getLastParams();
        assertNotNull(lastParams);
        assertEquals(scriptExecutor, lastParams.get("executor"));
    }

    public void test_execute_withMultipleEngines() {
        // Setup multiple script engines
        TestScriptEngine engine1 = new TestScriptEngine("engine1");
        TestScriptEngine engine2 = new TestScriptEngine("engine2");

        assertNotNull(retrievedByClassName);
        assertEquals(testScriptEngine, retrievedByClassName);
    }

    // Test register method with multiple engines
    public void test_register_multipleEngines() {
        TestScriptEngine engine1 = new TestScriptEngine("engine1");
        TestScriptEngine engine2 = new TestScriptEngine("engine2");

        engine1.register();

    private ScriptEngine scriptEngine;

    @Override
    public void setUp() throws Exception {
        super.setUp();
        // Create a test implementation of ScriptEngine
        scriptEngine = new TestScriptEngine();
    }

    // Test evaluate method with valid template and parameters
    public void test_evaluate_withValidTemplateAndParams() {
        String template = "Hello ${name}";