return nil
		}
	}
	return fmt.Errorf("node IP: %q not found in the host's network interfaces", nodeIP.String())
}

// nodeStatusHasChanged compares the original node and current node's status and
// returns true if any change happens. The heartbeat timestamp is ignored.
func nodeStatusHasChanged(originalStatus *v1.NodeStatus, status *v1.NodeStatus) bool {
	if originalStatus == nil && status == nil {
		return false
	}

		},
	}
	for _, tc := range testcases {
		t.Run(tc.name, func(t *testing.T) {
			originalStatusCopy := tc.originalStatus.DeepCopy()
			statusCopy := tc.status.DeepCopy()
			changed := nodeStatusHasChanged(tc.originalStatus, tc.status)
			assert.Equal(t, tc.expectChange, changed, "Expect node status change to be %t, but got %t.", tc.expectChange, changed)