/** Test of fillMilkTank method, of class AdvancedCoffeeMachine. */
@Test
public void testFillMilkTank() {
System.out.println("fillMilkTank");
int amount = 50;
AdvancedCoffeeMachine instance = new AdvancedCoffeeMachine();
String expResult = "\"message\":\"Finished filling up " + amount + "ml of milk\"";
String result = instance.fillMilkTank(amount);
assertEquals(expResult, result);
}
