// Test constructor
    @Test
    public void test_constructor() {
        assertNotNull(new ImplementedInvokerAssistant());
    }

    // Test assistCurrentDBDef
    @Test
    public void test_assistCurrentDBDef() {
        DBDef result = invokerAssistant.assistCurrentDBDef();
        assertNull(result);
    }

    // Test assistDataSource
    @Test
    public void test_assistDataSource() {