public void CustomerManager_GetCustomersByRegion_InProcessorCacheTest()
{
var cache = new InProcessorCache.Cache <IEnumerable <Customer> >();
var customerManager = new CustomersManager(cache);
long executionTimeWithoutCaching = 0;
long executionTimeWithCaching = 0;
var region = "RJ";
_stopwatch.Start();
var inProcessorCacheResult1 = customerManager.GetCustomersByRegion(region);
_stopwatch.Stop();
executionTimeWithoutCaching = _stopwatch.ElapsedMilliseconds;
_stopwatch.Restart();
var inProcessorCacheResult2 = customerManager.GetCustomersByRegion(region);
_stopwatch.Stop();
executionTimeWithCaching = _stopwatch.ElapsedMilliseconds;
Assert.IsTrue(executionTimeWithoutCaching > executionTimeWithCaching);
}