/** Test the getters for resources needs when not known. */
 public void testWithNoNeeds() {
   DefaultVirtualMachine n = new DefaultVirtualMachine("N1", 1, 3, 1024);
   Assert.assertEquals(n.getCPUDemand(), 3);
   Assert.assertEquals(n.getMemoryDemand(), 1024);
   Assert.assertEquals(
       n.getValue(DefaultVirtualMachine.MEMORY_NEED),
       n.getValue(DefaultVirtualMachine.MEMORY_CONSUMPTION));
   Assert.assertEquals(
       n.getValue(DefaultVirtualMachine.CPU_NEED),
       n.getValue(DefaultVirtualMachine.CPU_CONSUMPTION));
 }