public boolean isFailoverSwitch() {
        return failoverReactor.isFailoverSwitch();
    }
@Test
    void testIsFailoverSwitch() throws IllegalAccessException, NoSuchFieldException, NacosException {
        FailoverReactor mock = injectMockFailoverReactor();
        when(mock.isFailoverSwitch()).thenReturn(true);
        assertTrue(holder.isFailoverSwitch());
    }