func TestDedupingNotifier(t *testing.T) {
var (
record = &recordNotifier{}
notifies = provider.NewMemNotifies(provider.NewMemData())
deduper = Dedup(notifies, record)
ctx = context.Background()
)
now := time.Now()
ctx = WithReceiver(ctx, "name")
ctx = WithRepeatInterval(ctx, time.Duration(100*time.Minute))
ctx = WithNow(ctx, now)
alerts := []*types.Alert{
{
Alert: model.Alert{
Labels: model.LabelSet{"alertname": "0"},
},
}, {
Alert: model.Alert{
Labels: model.LabelSet{"alertname": "1"},
EndsAt: now.Add(-5 * time.Minute),
},
},
}
// Set an initial NotifyInfo to ensure that on notification failure
// nothing changes.
nsBefore := []*types.NotifyInfo{
nil,
{
Alert: alerts[1].Fingerprint(),
Receiver: "name",
Resolved: false,
Timestamp: now.Add(-10 * time.Minute),
},
}
if err := notifies.Set(nsBefore...); err != nil {
t.Fatalf("Setting notifies failed: %s", err)
}
deduper.notifier = &failNotifier{}
if err := deduper.Notify(ctx, alerts...); err == nil {
t.Fatalf("Fail notifier did not fail")
}
// After a failing notify the notifies data must be unchanged.
nsCur, err := notifies.Get("name", alerts[0].Fingerprint(), alerts[1].Fingerprint())
if err != nil {
t.Fatalf("Error getting notify info: %s", err)
}
if !reflect.DeepEqual(nsBefore, nsCur) {
t.Fatalf("Notify info data has changed unexpectedly")
}
deduper.notifier = record
if err := deduper.Notify(ctx, alerts...); err != nil {
t.Fatalf("Notify failed: %s", err)
}
if !reflect.DeepEqual(record.alerts, alerts) {
t.Fatalf("Expected alerts %v, got %v", alerts, record.alerts)
}
nsCur, err = notifies.Get("name", alerts[0].Fingerprint(), alerts[1].Fingerprint())
if err != nil {
t.Fatalf("Error getting notifies: %s", err)
}
nsAfter := []*types.NotifyInfo{
{
Alert: alerts[0].Fingerprint(),
Receiver: "name",
Resolved: false,
Timestamp: now,
},
{
Alert: alerts[1].Fingerprint(),
Receiver: "name",
Resolved: true,
Timestamp: now,
},
}
for i, after := range nsAfter {
cur := nsCur[i]
// Hack correct timestamps back in if they are sane.
if cur != nil && after.Timestamp.IsZero() {
if cur.Timestamp.Before(now) {
t.Fatalf("Wrong timestamp for notify %v", cur)
}
after.Timestamp = cur.Timestamp
}
if !reflect.DeepEqual(after, cur) {
t.Errorf("Unexpected notifies, expected: %v, got: %v", after, cur)
}
}
}
func TestDedupingNotifier(t *testing.T) {
var (
record = &recordNotifier{}
notifies = provider.NewMemNotifies(provider.NewMemData())
deduper = Dedup(notifies, record)
ctx = context.Background()
)
now := time.Now()
ctx = WithReceiver(ctx, "name")
ctx = WithRepeatInterval(ctx, time.Duration(100*time.Minute))
ctx = WithNow(ctx, now)
alerts := []*types.Alert{
{
Alert: model.Alert{
Labels: model.LabelSet{"alertname": "0"},
},
}, {
Alert: model.Alert{
Labels: model.LabelSet{"alertname": "1"},
EndsAt: now.Add(-5 * time.Minute),
},
}, {
Alert: model.Alert{
Labels: model.LabelSet{"alertname": "2"},
EndsAt: now.Add(-9 * time.Minute),
},
}, {
Alert: model.Alert{
Labels: model.LabelSet{"alertname": "3"},
EndsAt: now.Add(-10 * time.Minute),
},
}, {
Alert: model.Alert{
Labels: model.LabelSet{"alertname": "4"},
},
}, {
Alert: model.Alert{
Labels: model.LabelSet{"alertname": "5"},
},
},
}
var fps []model.Fingerprint
for _, a := range alerts {
fps = append(fps, a.Fingerprint())
}
nsBefore := []*types.NotifyInfo{
// The first a new alert starting now.
nil,
// The second alert was not previously notified about and
// is already resolved.
nil,
// The third alert is an attempt to resolve a previously
// firing alert.
{
Alert: fps[2],
Receiver: "name",
Resolved: false,
Timestamp: now.Add(-10 * time.Minute),
},
// The fourth alert is an attempt to resolve an alert again
// even though the previous notification succeeded.
{
Alert: fps[3],
Receiver: "name",
Resolved: true,
Timestamp: now.Add(-10 * time.Minute),
},
// The fifth alert resends a previously successful notification
// that was longer than ago than the repeat interval.
{
Alert: fps[4],
Receiver: "name",
Resolved: false,
Timestamp: now.Add(-110 * time.Minute),
},
// The sixth alert is a firing again after being resolved before.
{
Alert: fps[5],
Receiver: "name",
Resolved: true,
Timestamp: now.Add(3 * time.Minute),
},
}
if err := notifies.Set(nsBefore...); err != nil {
t.Fatalf("Setting notifies failed: %s", err)
}
deduper.notifier = &failNotifier{}
if err := deduper.Notify(ctx, alerts...); err == nil {
t.Fatalf("Fail notifier did not fail")
}
// After a failing notify the notifies data must be unchanged.
nsCur, err := notifies.Get("name", fps...)
if err != nil {
t.Fatalf("Error getting notify info: %s", err)
}
if !reflect.DeepEqual(nsBefore, nsCur) {
t.Fatalf("Notify info data has changed unexpectedly")
}
deduper.notifier = record
if err := deduper.Notify(ctx, alerts...); err != nil {
t.Fatalf("Notify failed: %s", err)
}
alertsExp := []*types.Alert{
alerts[0],
alerts[2],
alerts[4],
alerts[5],
}
nsAfter := []*types.NotifyInfo{
{
Alert: fps[0],
Receiver: "name",
Resolved: false,
},
nil,
{
Alert: fps[2],
Receiver: "name",
Resolved: true,
},
nsBefore[3],
{
Alert: fps[4],
Receiver: "name",
Resolved: false,
},
{
Alert: fps[5],
Receiver: "name",
Resolved: false,
},
}
if !reflect.DeepEqual(record.alerts, alertsExp) {
t.Fatalf("Expected alerts %v, got %v", alertsExp, record.alerts)
}
nsCur, err = notifies.Get("name", fps...)
if err != nil {
t.Fatalf("Error getting notifies: %s", err)
}
for i, after := range nsAfter {
cur := nsCur[i]
// Hack correct timestamps back in if they are sane.
if cur != nil && after.Timestamp.IsZero() {
if cur.Timestamp.Before(now) {
t.Fatalf("Wrong timestamp for notify %v", cur)
}
after.Timestamp = cur.Timestamp
}
if !reflect.DeepEqual(after, cur) {
t.Errorf("Unexpected notifies, expected: %v, got: %v", after, cur)
}
}
}