VictoriaMetrics/app/vmalert/web_test.go
Roman Khavronenko 35bf5bf688
Vmalert compliance improvements (#2320)
* vmalert: add support for `sortByLabel` template function

* vmalert: update API according to Prometheus conformance program

The changes to the API, field names and URL path has been made
according to the Prometheus specification for `alert_generator`
https://github.com/prometheus/compliance/blob/main/alert_generator/specification.md

* vmalert: fix the timestamp of the evaluated rules

The timestamp used for alert's `EndsAt` was calculated
before sending the notification. While the correct way
is to use the timestamp taken right before rules evaluation.

* vmalert: add `-datasource.queryTimeAlignment` flag

The flag is supposed to provide ability to disable `time`
param alignment when executing rules. By default, this flag
is enabled, so it remains backward compatible.

The flag was introduced to achieve better compatibility
with Prometheus behaviour according to https://github.com/prometheus/compliance/blob/main/alert_generator/specification.md

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2022-03-16 13:22:26 +02:00

81 lines
2 KiB
Go

package main
import (
"encoding/json"
"net/http"
"net/http/httptest"
"reflect"
"testing"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/notifier"
)
func TestHandler(t *testing.T) {
ar := &AlertingRule{
Name: "alert",
alerts: map[uint64]*notifier.Alert{
0: {},
},
}
g := &Group{
Name: "group",
Rules: []Rule{ar},
}
m := &manager{groups: make(map[uint64]*Group)}
m.groups[0] = g
rh := &requestHandler{m: m}
getResp := func(url string, to interface{}, code int) {
t.Helper()
resp, err := http.Get(url)
if err != nil {
t.Errorf("unexpected err %s", err)
}
if code != resp.StatusCode {
t.Errorf("unexpected status code %d want %d", resp.StatusCode, code)
}
defer func() {
if err := resp.Body.Close(); err != nil {
t.Errorf("err closing body %s", err)
}
}()
if to != nil {
if err = json.NewDecoder(resp.Body).Decode(to); err != nil {
t.Errorf("unexpected err %s", err)
}
}
}
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { rh.handler(w, r) }))
defer ts.Close()
t.Run("/api/v1/alerts", func(t *testing.T) {
lr := listAlertsResponse{}
getResp(ts.URL+"/api/v1/alerts", &lr, 200)
if length := len(lr.Data.Alerts); length != 1 {
t.Errorf("expected 1 alert got %d", length)
}
})
t.Run("/api/v1/rules", func(t *testing.T) {
lr := listGroupsResponse{}
getResp(ts.URL+"/api/v1/rules", &lr, 200)
if length := len(lr.Data.Groups); length != 1 {
t.Errorf("expected 1 group got %d", length)
}
})
t.Run("/api/v1/0/0/status", func(t *testing.T) {
alert := &APIAlert{}
getResp(ts.URL+"/api/v1/0/0/status", alert, 200)
expAlert := ar.newAlertAPI(*ar.alerts[0])
if !reflect.DeepEqual(alert, expAlert) {
t.Errorf("expected %v is equal to %v", alert, expAlert)
}
})
t.Run("/api/v1/0/1/status", func(t *testing.T) {
getResp(ts.URL+"/api/v1/0/1/status", nil, 404)
})
t.Run("/api/v1/1/0/status", func(t *testing.T) {
getResp(ts.URL+"/api/v1/1/0/status", nil, 404)
})
t.Run("/", func(t *testing.T) {
getResp(ts.URL, nil, 200)
})
}