### Question:
GatewayClient { public GatewayConfigProperties getGatewayConfigProperties() { if (gatewayConfigProperties == null) { throw new GatewayNotAvailableException("No Gateway Instance is available at the moment"); } return gatewayConfigProperties; }  void setGatewayConfigProperties(GatewayConfigProperties gatewayConfigProperties); GatewayConfigProperties getGatewayConfigProperties(); boolean isInitialized();  }### Answer:
@Test public void testGetGatewayConfigProperties_whenItIsNotNull() { assertEquals(gatewayClient.getGatewayConfigProperties(), gatewayConfigProperties); }