### Question:
Config { public synchronized static Config getInstance () { if (null == instance) { instance = new Config(); } return instance; } private  Config(); double getEpsilon(); double getLambda(); double getTouFactor(); double getInterruptibilityFactor(); double getVariablePricingFactor(); double getTieredRateFactor(); int getMinDefaultDuration(); int getMaxDefaultDuration(); double getRationalityFactor(); double getNsInertia(); double getBrokerSwitchFactor(); double getWeightInconvenience(); int getTariffCount(); int getProfileLength(); @Deprecated void configure(); void configure(ServerConfiguration configSource); Map<String, Collection<?>> getBeans(); synchronized static Config getInstance(); synchronized static void recycle();  }### Answer:
@Test public void testGetInstance () { Config item = Config.getInstance(); assertNotNull(item, "Config created"); }