mirror of
https://github.com/prometheus/alertmanager
synced 2024-12-29 09:32:16 +00:00
587 lines
15 KiB
Go
587 lines
15 KiB
Go
// Copyright 2018 Prometheus Team
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package v1
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import (
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"bytes"
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"net/http"
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"net/http/httptest"
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"regexp"
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"testing"
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"time"
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"github.com/prometheus/common/model"
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"github.com/stretchr/testify/require"
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"github.com/prometheus/alertmanager/config"
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"github.com/prometheus/alertmanager/dispatch"
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"github.com/prometheus/alertmanager/pkg/labels"
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"github.com/prometheus/alertmanager/provider"
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"github.com/prometheus/alertmanager/types"
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)
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// fakeAlerts is a struct implementing the provider.Alerts interface for tests.
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type fakeAlerts struct {
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fps map[model.Fingerprint]int
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alerts []*types.Alert
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err error
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}
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func newFakeAlerts(alerts []*types.Alert, withErr bool) *fakeAlerts {
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fps := make(map[model.Fingerprint]int)
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for i, a := range alerts {
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fps[a.Fingerprint()] = i
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}
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f := &fakeAlerts{
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alerts: alerts,
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fps: fps,
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}
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if withErr {
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f.err = errors.New("error occurred")
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}
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return f
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}
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func (f *fakeAlerts) Subscribe() provider.AlertIterator { return nil }
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func (f *fakeAlerts) Get(model.Fingerprint) (*types.Alert, error) { return nil, nil }
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func (f *fakeAlerts) Put(alerts ...*types.Alert) error {
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return f.err
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}
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func (f *fakeAlerts) GetPending() provider.AlertIterator {
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ch := make(chan *types.Alert)
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done := make(chan struct{})
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go func() {
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defer close(ch)
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for _, a := range f.alerts {
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ch <- a
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}
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}()
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return provider.NewAlertIterator(ch, done, f.err)
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}
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func newGetAlertStatus(f *fakeAlerts) func(model.Fingerprint) types.AlertStatus {
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return func(fp model.Fingerprint) types.AlertStatus {
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status := types.AlertStatus{SilencedBy: []string{}, InhibitedBy: []string{}}
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i, ok := f.fps[fp]
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if !ok {
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return status
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}
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alert := f.alerts[i]
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switch alert.Labels["state"] {
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case "active":
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status.State = types.AlertStateActive
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case "unprocessed":
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status.State = types.AlertStateUnprocessed
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case "suppressed":
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status.State = types.AlertStateSuppressed
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}
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if alert.Labels["silenced_by"] != "" {
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status.SilencedBy = append(status.SilencedBy, string(alert.Labels["silenced_by"]))
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}
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if alert.Labels["inhibited_by"] != "" {
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status.InhibitedBy = append(status.InhibitedBy, string(alert.Labels["inhibited_by"]))
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}
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return status
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}
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}
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func TestAddAlerts(t *testing.T) {
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now := func(offset int) time.Time {
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return time.Now().Add(time.Duration(offset) * time.Second)
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}
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for i, tc := range []struct {
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start, end time.Time
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err bool
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code int
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}{
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{time.Time{}, time.Time{}, false, 200},
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{now(0), time.Time{}, false, 200},
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{time.Time{}, now(-1), false, 200},
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{time.Time{}, now(0), false, 200},
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{time.Time{}, now(1), false, 200},
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{now(-2), now(-1), false, 200},
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{now(1), now(2), false, 200},
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{now(1), now(0), false, 400},
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{now(0), time.Time{}, true, 500},
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} {
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alerts := []model.Alert{{
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StartsAt: tc.start,
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EndsAt: tc.end,
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Labels: model.LabelSet{"label1": "test1"},
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Annotations: model.LabelSet{"annotation1": "some text"},
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}}
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b, err := json.Marshal(&alerts)
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if err != nil {
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t.Errorf("Unexpected error %v", err)
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}
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alertsProvider := newFakeAlerts([]*types.Alert{}, tc.err)
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api := New(alertsProvider, nil, newGetAlertStatus(alertsProvider), nil, nil, nil)
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defaultGlobalConfig := config.DefaultGlobalConfig()
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route := config.Route{}
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api.Update(&config.Config{
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Global: &defaultGlobalConfig,
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Route: &route,
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})
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r, err := http.NewRequest("POST", "/api/v1/alerts", bytes.NewReader(b))
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w := httptest.NewRecorder()
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if err != nil {
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t.Errorf("Unexpected error %v", err)
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}
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api.addAlerts(w, r)
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res := w.Result()
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body, _ := io.ReadAll(res.Body)
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require.Equal(t, tc.code, w.Code, fmt.Sprintf("test case: %d, StartsAt %v, EndsAt %v, Response: %s", i, tc.start, tc.end, string(body)))
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}
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}
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func TestListAlerts(t *testing.T) {
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now := time.Now()
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alerts := []*types.Alert{
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{
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Alert: model.Alert{
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Labels: model.LabelSet{"state": "active", "alertname": "alert1"},
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StartsAt: now.Add(-time.Minute),
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},
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},
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{
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Alert: model.Alert{
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Labels: model.LabelSet{"state": "unprocessed", "alertname": "alert2"},
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StartsAt: now.Add(-time.Minute),
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},
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},
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{
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Alert: model.Alert{
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Labels: model.LabelSet{"state": "suppressed", "silenced_by": "abc", "alertname": "alert3"},
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StartsAt: now.Add(-time.Minute),
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},
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},
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{
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Alert: model.Alert{
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Labels: model.LabelSet{"state": "suppressed", "inhibited_by": "abc", "alertname": "alert4"},
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StartsAt: now.Add(-time.Minute),
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},
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},
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{
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Alert: model.Alert{
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Labels: model.LabelSet{"alertname": "alert5"},
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StartsAt: now.Add(-2 * time.Minute),
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EndsAt: now.Add(-time.Minute),
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},
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},
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}
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for i, tc := range []struct {
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err bool
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params map[string]string
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code int
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anames []string
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}{
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{
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false,
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map[string]string{},
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200,
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[]string{"alert1", "alert2", "alert3", "alert4"},
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},
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{
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false,
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map[string]string{"active": "true", "unprocessed": "true", "silenced": "true", "inhibited": "true"},
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200,
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[]string{"alert1", "alert2", "alert3", "alert4"},
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},
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{
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false,
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map[string]string{"active": "false", "unprocessed": "true", "silenced": "true", "inhibited": "true"},
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200,
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[]string{"alert2", "alert3", "alert4"},
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},
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{
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false,
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map[string]string{"active": "true", "unprocessed": "false", "silenced": "true", "inhibited": "true"},
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200,
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[]string{"alert1", "alert3", "alert4"},
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},
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{
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false,
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map[string]string{"active": "true", "unprocessed": "true", "silenced": "false", "inhibited": "true"},
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200,
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[]string{"alert1", "alert2", "alert4"},
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},
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{
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false,
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map[string]string{"active": "true", "unprocessed": "true", "silenced": "true", "inhibited": "false"},
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200,
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[]string{"alert1", "alert2", "alert3"},
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},
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{
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false,
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map[string]string{"filter": "{alertname=\"alert3\""},
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200,
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[]string{"alert3"},
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},
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{
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false,
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map[string]string{"filter": "{alertname"},
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400,
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[]string{},
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},
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{
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false,
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map[string]string{"receiver": "other"},
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200,
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[]string{},
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},
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{
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false,
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map[string]string{"active": "invalid"},
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400,
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[]string{},
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},
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{
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true,
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map[string]string{},
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500,
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[]string{},
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},
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} {
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alertsProvider := newFakeAlerts(alerts, tc.err)
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api := New(alertsProvider, nil, newGetAlertStatus(alertsProvider), nil, nil, nil)
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api.route = dispatch.NewRoute(&config.Route{Receiver: "def-receiver"}, nil)
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r, err := http.NewRequest("GET", "/api/v1/alerts", nil)
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if err != nil {
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t.Fatalf("Unexpected error %v", err)
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}
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q := r.URL.Query()
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for k, v := range tc.params {
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q.Add(k, v)
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}
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r.URL.RawQuery = q.Encode()
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w := httptest.NewRecorder()
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api.listAlerts(w, r)
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body, _ := io.ReadAll(w.Result().Body)
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var res response
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err = json.Unmarshal(body, &res)
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if err != nil {
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t.Fatalf("Unexpected error %v", err)
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}
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require.Equal(t, tc.code, w.Code, fmt.Sprintf("test case: %d, response: %s", i, string(body)))
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if w.Code != 200 {
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continue
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}
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// Data needs to be serialized/deserialized to be converted to the real type.
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b, err := json.Marshal(res.Data)
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if err != nil {
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t.Fatalf("Unexpected error %v", err)
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}
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retAlerts := []*Alert{}
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err = json.Unmarshal(b, &retAlerts)
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if err != nil {
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t.Fatalf("Unexpected error %v", err)
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}
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anames := []string{}
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for _, a := range retAlerts {
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name, ok := a.Labels["alertname"]
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if ok {
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anames = append(anames, string(name))
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}
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}
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require.Equal(t, tc.anames, anames, fmt.Sprintf("test case: %d, alert names are not equal", i))
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}
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}
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func TestAlertFiltering(t *testing.T) {
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type test struct {
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alert *model.Alert
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msg string
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expected bool
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}
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// Equal
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equal, err := labels.NewMatcher(labels.MatchEqual, "label1", "test1")
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if err != nil {
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t.Errorf("Unexpected error %v", err)
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}
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tests := []test{
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{&model.Alert{Labels: model.LabelSet{"label1": "test1"}}, "label1=test1", true},
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{&model.Alert{Labels: model.LabelSet{"label1": "test2"}}, "label1=test2", false},
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{&model.Alert{Labels: model.LabelSet{"label2": "test2"}}, "label2=test2", false},
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}
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for _, test := range tests {
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actual := alertMatchesFilterLabels(test.alert, []*labels.Matcher{equal})
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msg := fmt.Sprintf("Expected %t for %s", test.expected, test.msg)
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require.Equal(t, test.expected, actual, msg)
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}
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// Not Equal
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notEqual, err := labels.NewMatcher(labels.MatchNotEqual, "label1", "test1")
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if err != nil {
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t.Errorf("Unexpected error %v", err)
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}
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tests = []test{
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{&model.Alert{Labels: model.LabelSet{"label1": "test1"}}, "label1!=test1", false},
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{&model.Alert{Labels: model.LabelSet{"label1": "test2"}}, "label1!=test2", true},
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{&model.Alert{Labels: model.LabelSet{"label2": "test2"}}, "label2!=test2", true},
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}
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for _, test := range tests {
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actual := alertMatchesFilterLabels(test.alert, []*labels.Matcher{notEqual})
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msg := fmt.Sprintf("Expected %t for %s", test.expected, test.msg)
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require.Equal(t, test.expected, actual, msg)
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}
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// Regexp Equal
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regexpEqual, err := labels.NewMatcher(labels.MatchRegexp, "label1", "tes.*")
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if err != nil {
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t.Errorf("Unexpected error %v", err)
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}
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tests = []test{
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{&model.Alert{Labels: model.LabelSet{"label1": "test1"}}, "label1=~test1", true},
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{&model.Alert{Labels: model.LabelSet{"label1": "test2"}}, "label1=~test2", true},
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{&model.Alert{Labels: model.LabelSet{"label2": "test2"}}, "label2=~test2", false},
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}
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for _, test := range tests {
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actual := alertMatchesFilterLabels(test.alert, []*labels.Matcher{regexpEqual})
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msg := fmt.Sprintf("Expected %t for %s", test.expected, test.msg)
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require.Equal(t, test.expected, actual, msg)
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}
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// Regexp Not Equal
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regexpNotEqual, err := labels.NewMatcher(labels.MatchNotRegexp, "label1", "tes.*")
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if err != nil {
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t.Errorf("Unexpected error %v", err)
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}
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tests = []test{
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{&model.Alert{Labels: model.LabelSet{"label1": "test1"}}, "label1!~test1", false},
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{&model.Alert{Labels: model.LabelSet{"label1": "test2"}}, "label1!~test2", false},
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{&model.Alert{Labels: model.LabelSet{"label2": "test2"}}, "label2!~test2", true},
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}
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for _, test := range tests {
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actual := alertMatchesFilterLabels(test.alert, []*labels.Matcher{regexpNotEqual})
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msg := fmt.Sprintf("Expected %t for %s", test.expected, test.msg)
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require.Equal(t, test.expected, actual, msg)
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}
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}
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func TestSilenceFiltering(t *testing.T) {
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type test struct {
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silence *types.Silence
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msg string
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expected bool
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}
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// Equal
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equal, err := labels.NewMatcher(labels.MatchEqual, "label1", "test1")
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if err != nil {
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t.Errorf("Unexpected error %v", err)
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}
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tests := []test{
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{
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&types.Silence{Matchers: newMatcher(model.LabelSet{"label1": "test1"})},
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"label1=test1",
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true,
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},
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{
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&types.Silence{Matchers: newMatcher(model.LabelSet{"label1": "test2"})},
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"label1=test2",
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false,
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},
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{
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&types.Silence{Matchers: newMatcher(model.LabelSet{"label2": "test2"})},
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"label2=test2",
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false,
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},
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}
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for _, test := range tests {
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actual := silenceMatchesFilterLabels(test.silence, []*labels.Matcher{equal})
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msg := fmt.Sprintf("Expected %t for %s", test.expected, test.msg)
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require.Equal(t, test.expected, actual, msg)
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}
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// Not Equal
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notEqual, err := labels.NewMatcher(labels.MatchNotEqual, "label1", "test1")
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if err != nil {
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t.Errorf("Unexpected error %v", err)
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}
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tests = []test{
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{
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&types.Silence{Matchers: newMatcher(model.LabelSet{"label1": "test1"})},
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"label1!=test1",
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false,
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},
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{
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&types.Silence{Matchers: newMatcher(model.LabelSet{"label1": "test2"})},
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"label1!=test2",
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true,
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},
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{
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&types.Silence{Matchers: newMatcher(model.LabelSet{"label2": "test2"})},
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"label2!=test2",
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true,
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},
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}
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for _, test := range tests {
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actual := silenceMatchesFilterLabels(test.silence, []*labels.Matcher{notEqual})
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msg := fmt.Sprintf("Expected %t for %s", test.expected, test.msg)
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require.Equal(t, test.expected, actual, msg)
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}
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// Regexp Equal
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regexpEqual, err := labels.NewMatcher(labels.MatchRegexp, "label1", "tes.*")
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if err != nil {
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t.Errorf("Unexpected error %v", err)
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}
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tests = []test{
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{
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&types.Silence{Matchers: newMatcher(model.LabelSet{"label1": "test1"})},
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"label1=~test1",
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true,
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},
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{
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&types.Silence{Matchers: newMatcher(model.LabelSet{"label1": "test2"})},
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"label1=~test2",
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true,
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},
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{
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&types.Silence{Matchers: newMatcher(model.LabelSet{"label2": "test2"})},
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"label2=~test2",
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false,
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},
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}
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for _, test := range tests {
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actual := silenceMatchesFilterLabels(test.silence, []*labels.Matcher{regexpEqual})
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msg := fmt.Sprintf("Expected %t for %s", test.expected, test.msg)
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require.Equal(t, test.expected, actual, msg)
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}
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// Regexp Not Equal
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regexpNotEqual, err := labels.NewMatcher(labels.MatchNotRegexp, "label1", "tes.*")
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if err != nil {
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t.Errorf("Unexpected error %v", err)
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}
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tests = []test{
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{
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&types.Silence{Matchers: newMatcher(model.LabelSet{"label1": "test1"})},
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"label1!~test1",
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false,
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},
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{
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&types.Silence{Matchers: newMatcher(model.LabelSet{"label1": "test2"})},
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"label1!~test2",
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false,
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},
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{
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&types.Silence{Matchers: newMatcher(model.LabelSet{"label2": "test2"})},
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|
"label2!~test2",
|
|
true,
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
actual := silenceMatchesFilterLabels(test.silence, []*labels.Matcher{regexpNotEqual})
|
|
msg := fmt.Sprintf("Expected %t for %s", test.expected, test.msg)
|
|
require.Equal(t, test.expected, actual, msg)
|
|
}
|
|
}
|
|
|
|
func TestReceiversMatchFilter(t *testing.T) {
|
|
receivers := []string{"pagerduty", "slack", "pushover"}
|
|
|
|
filter, err := regexp.Compile(fmt.Sprintf("^(?:%s)$", "push.*"))
|
|
if err != nil {
|
|
t.Errorf("Unexpected error %v", err)
|
|
}
|
|
require.True(t, receiversMatchFilter(receivers, filter))
|
|
|
|
filter, err = regexp.Compile(fmt.Sprintf("^(?:%s)$", "push"))
|
|
if err != nil {
|
|
t.Errorf("Unexpected error %v", err)
|
|
}
|
|
require.False(t, receiversMatchFilter(receivers, filter))
|
|
}
|
|
|
|
func TestMatchFilterLabels(t *testing.T) {
|
|
testCases := []struct {
|
|
matcher labels.MatchType
|
|
expected bool
|
|
}{
|
|
{labels.MatchEqual, true},
|
|
{labels.MatchRegexp, true},
|
|
{labels.MatchNotEqual, false},
|
|
{labels.MatchNotRegexp, false},
|
|
}
|
|
|
|
for _, tc := range testCases {
|
|
l, err := labels.NewMatcher(tc.matcher, "foo", "")
|
|
require.NoError(t, err)
|
|
sms := map[string]string{
|
|
"baz": "bar",
|
|
}
|
|
ls := []*labels.Matcher{l}
|
|
|
|
require.Equal(t, tc.expected, matchFilterLabels(ls, sms))
|
|
|
|
l, err = labels.NewMatcher(tc.matcher, "foo", "")
|
|
require.NoError(t, err)
|
|
sms = map[string]string{
|
|
"baz": "bar",
|
|
"foo": "quux",
|
|
}
|
|
ls = []*labels.Matcher{l}
|
|
require.NotEqual(t, tc.expected, matchFilterLabels(ls, sms))
|
|
}
|
|
}
|
|
|
|
func newMatcher(labelSet model.LabelSet) labels.Matchers {
|
|
matchers := make([]*labels.Matcher, 0, len(labelSet))
|
|
for key, val := range labelSet {
|
|
matchers = append(matchers, &labels.Matcher{
|
|
Type: labels.MatchEqual,
|
|
Name: string(key),
|
|
Value: string(val),
|
|
})
|
|
}
|
|
return matchers
|
|
}
|