func testStorageUnlockNode(storage cluster.Storage, t *testing.T) {
node := cluster.Node{Address: "addr-xyz"}
defer storage.RemoveNode("addr-xyz")
err := storage.StoreNode(node)
assertIsNil(err, t)
locked, err := storage.LockNodeForHealing("addr-xyz", true, 200*time.Millisecond)
assertIsNil(err, t)
err = storage.UnlockNode("addr-xyz")
assertIsNil(err, t)
locked, err = storage.LockNodeForHealing("addr-xyz", true, 200*time.Millisecond)
assertIsNil(err, t)
if !locked {
t.Fatal("Expected LockNodeForHealing to return true after unlocking")
}
}