@Override
    public void onClose(final int i, final String s, final boolean b) {
        this.close();
    }
@Test
    public void testOnClose() {
        shenyuWebsocketClient = spy(shenyuWebsocketClient);
        doNothing().when(shenyuWebsocketClient).close();
        shenyuWebsocketClient.onClose(1, "shenyu-plugin-grpc", true);
        verify(shenyuWebsocketClient).close();
    }