@Override
    public String getProviderServiceProperty(String service, String key) {
        return config.getProperty(DynamicConfigKeyHelper.buildProviderServiceProKey(service, key),
            DynamicHelper.DEFAULT_DYNAMIC_VALUE);
    }
@Test
    public void getProviderServiceProperty() {
        String result = apolloDynamicConfigManager.getProviderServiceProperty("serviceName", "timeout");
        Assert.assertEquals(DynamicHelper.DEFAULT_DYNAMIC_VALUE, result);
    }