func testStorageStoreRetrieveNode(storage cluster.Storage, t *testing.T) {
node1 := cluster.Node{Address: "my-addr-1", Metadata: map[string]string{"abc": "def"}}
defer storage.RemoveNode("my-addr-1")
err := storage.StoreNode(node1)
assertIsNil(err, t)
nd, err := storage.RetrieveNode("my-addr-1")
assertIsNil(err, t)
if !reflect.DeepEqual(nd, node1) {
t.Errorf("unexpected node, expected: %#v, got: %#v", node1, nd)
}
_, err = storage.RetrieveNode("my-addr-xxxx")
if err != cstorage.ErrNoSuchNode {
t.Errorf("Expected ErrNoSuchNode got: %#v", err)
}
}
func testStorageStoreAlreadyLocked(storage cluster.Storage, t *testing.T) {
node1 := cluster.Node{
Address: "my-addr-locked",
Metadata: map[string]string{},
Healing: cluster.HealingData{LockedUntil: time.Now().UTC().Add(5 * time.Second), IsFailure: true},
}
defer storage.RemoveNode("my-addr-locked")
err := storage.StoreNode(node1)
assertIsNil(err, t)
nd, err := storage.RetrieveNode("my-addr-locked")
assertIsNil(err, t)
duration := nd.Healing.LockedUntil.Sub(node1.Healing.LockedUntil)
if duration < 0 {
duration = -duration
}
if duration > 1*time.Second {
t.Errorf("unexpected node, expected: %#v, got: %#v", node1, nd)
}
}
func testStorageLockNodeHealing(storage cluster.Storage, t *testing.T) {
defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(100))
node := cluster.Node{Address: "addr-xyz"}
defer storage.RemoveNode("addr-xyz")
err := storage.StoreNode(node)
assertIsNil(err, t)
successCount := 0
wg := sync.WaitGroup{}
wg.Add(50)
for i := 0; i < 50; i++ {
go func() {
defer wg.Done()
locked, err := storage.LockNodeForHealing("addr-xyz", true, 5*time.Second)
assertIsNil(err, t)
if locked {
successCount++
}
}()
}
wg.Wait()
if successCount != 1 {
t.Fatalf("Expected success in only one goroutine, got: %d", successCount)
}
dbNode, err := storage.RetrieveNode("addr-xyz")
assertIsNil(err, t)
if dbNode.Healing.LockedUntil.IsZero() {
t.Fatal("Expected node Healing.LockedUntil not to be zero")
}
if !dbNode.Healing.IsFailure {
t.Fatal("Expected node healing.isFailure to be true")
}
dbNode.Healing = cluster.HealingData{}
err = storage.UpdateNode(dbNode)
assertIsNil(err, t)
dbNode, err = storage.RetrieveNode("addr-xyz")
assertIsNil(err, t)
if !dbNode.Healing.LockedUntil.IsZero() {
t.Fatal("Expected node Healing.LockedUntil to be zero")
}
if dbNode.Healing.IsFailure {
t.Fatal("Expected node Healing.IsFailure to be false")
}
}