[]int{},
		},
	}

	for _, tc := range testCases {
		t.Run(tc.description, func(t *testing.T) {
			acc := newCPUAccumulator(tc.topo, tc.availableCPUs, 0)
			result := acc.freeSockets()
			sort.Ints(result)
			if !reflect.DeepEqual(result, tc.expect) {
				t.Errorf("expected %v to equal %v", result, tc.expect)

			}
		})
	}
}

		if a.isNUMANodeFree(numa) {
			free = append(free, numa)
		}
	}
	return free
}

// Returns free socket IDs as a slice sorted by sortAvailableSockets().
func (a *cpuAccumulator) freeSockets() []int {
	free := []int{}
	for _, socket := range a.sortAvailableSockets() {
		if a.isSocketFree(socket) {
			free = append(free, socket)
		}
	}
	return free
}