@Test
  public void testPurchaseThreeDayPass() {

    PurchasingManager pm = new PurchasingManager();

    PurchaseThreeDayPassRequest request = new PurchaseThreeDayPassRequest();
    request.setDate(new Date(123123123l));
    request.setMobileDeviceMAC("234234234");
    request.setVersion(1);
    PurchaseThreeDayPassCommand command = mock(PurchaseThreeDayPassCommand.class);
    doNothing().when(command).execute();

    PurchaseThreeDayPassResponse res = pm.purchaseThreeDayPass(request);
    assertNotNull(res);
  }