mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-11-21 14:44:00 +00:00
314 lines
9.7 KiB
Go
314 lines
9.7 KiB
Go
package main
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import (
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"context"
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"encoding/json"
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"fmt"
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"net/http"
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"net/http/httptest"
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"reflect"
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"testing"
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"time"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/config"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/datasource"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/notifier"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/rule"
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)
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func TestHandler(t *testing.T) {
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fq := &datasource.FakeQuerier{}
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fq.Add(datasource.Metric{
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Values: []float64{1}, Timestamps: []int64{0},
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})
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g := &rule.Group{
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Name: "group",
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File: "rules.yaml",
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Concurrency: 1,
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}
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ar := rule.NewAlertingRule(fq, g, config.Rule{ID: 0, Alert: "alert"})
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rr := rule.NewRecordingRule(fq, g, config.Rule{ID: 1, Record: "record"})
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g.Rules = []rule.Rule{ar, rr}
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g.ExecOnce(context.Background(), func() []notifier.Notifier { return nil }, nil, time.Time{})
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m := &manager{groups: map[uint64]*rule.Group{
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g.ID(): g,
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}}
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rh := &requestHandler{m: m}
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getResp := func(url string, to interface{}, code int) {
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t.Helper()
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resp, err := http.Get(url)
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if err != nil {
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t.Fatalf("unexpected err %s", err)
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}
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if code != resp.StatusCode {
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t.Errorf("unexpected status code %d want %d", resp.StatusCode, code)
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}
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defer func() {
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if err := resp.Body.Close(); err != nil {
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t.Errorf("err closing body %s", err)
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}
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}()
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if to != nil {
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if err = json.NewDecoder(resp.Body).Decode(to); err != nil {
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t.Errorf("unexpected err %s", err)
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}
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}
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}
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { rh.handler(w, r) }))
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defer ts.Close()
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t.Run("/", func(t *testing.T) {
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getResp(ts.URL, nil, 200)
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getResp(ts.URL+"/vmalert", nil, 200)
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getResp(ts.URL+"/vmalert/alerts", nil, 200)
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getResp(ts.URL+"/vmalert/groups", nil, 200)
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getResp(ts.URL+"/vmalert/notifiers", nil, 200)
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getResp(ts.URL+"/rules", nil, 200)
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})
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t.Run("/vmalert/rule", func(t *testing.T) {
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a := ruleToAPI(ar)
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getResp(ts.URL+"/vmalert/"+a.WebLink(), nil, 200)
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r := ruleToAPI(rr)
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getResp(ts.URL+"/vmalert/"+r.WebLink(), nil, 200)
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})
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t.Run("/vmalert/alert", func(t *testing.T) {
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alerts := ruleToAPIAlert(ar)
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for _, a := range alerts {
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getResp(ts.URL+"/vmalert/"+a.WebLink(), nil, 200)
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}
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})
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t.Run("/vmalert/rule?badParam", func(t *testing.T) {
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params := fmt.Sprintf("?%s=0&%s=1", paramGroupID, paramRuleID)
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getResp(ts.URL+"/vmalert/rule"+params, nil, 404)
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params = fmt.Sprintf("?%s=1&%s=0", paramGroupID, paramRuleID)
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getResp(ts.URL+"/vmalert/rule"+params, nil, 404)
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})
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t.Run("/api/v1/alerts", func(t *testing.T) {
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lr := listAlertsResponse{}
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getResp(ts.URL+"/api/v1/alerts", &lr, 200)
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if length := len(lr.Data.Alerts); length != 1 {
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t.Errorf("expected 1 alert got %d", length)
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}
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lr = listAlertsResponse{}
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getResp(ts.URL+"/vmalert/api/v1/alerts", &lr, 200)
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if length := len(lr.Data.Alerts); length != 1 {
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t.Errorf("expected 1 alert got %d", length)
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}
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})
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t.Run("/api/v1/alert?alertID&groupID", func(t *testing.T) {
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expAlert := newAlertAPI(ar, ar.GetAlerts()[0])
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alert := &apiAlert{}
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getResp(ts.URL+"/"+expAlert.APILink(), alert, 200)
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if !reflect.DeepEqual(alert, expAlert) {
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t.Errorf("expected %v is equal to %v", alert, expAlert)
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}
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alert = &apiAlert{}
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getResp(ts.URL+"/vmalert/"+expAlert.APILink(), alert, 200)
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if !reflect.DeepEqual(alert, expAlert) {
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t.Errorf("expected %v is equal to %v", alert, expAlert)
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}
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})
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t.Run("/api/v1/alert?badParams", func(t *testing.T) {
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params := fmt.Sprintf("?%s=0&%s=1", paramGroupID, paramAlertID)
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getResp(ts.URL+"/api/v1/alert"+params, nil, 404)
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getResp(ts.URL+"/vmalert/api/v1/alert"+params, nil, 404)
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params = fmt.Sprintf("?%s=1&%s=0", paramGroupID, paramAlertID)
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getResp(ts.URL+"/api/v1/alert"+params, nil, 404)
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getResp(ts.URL+"/vmalert/api/v1/alert"+params, nil, 404)
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// bad request, alertID is missing
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params = fmt.Sprintf("?%s=1", paramGroupID)
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getResp(ts.URL+"/api/v1/alert"+params, nil, 400)
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getResp(ts.URL+"/vmalert/api/v1/alert"+params, nil, 400)
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})
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t.Run("/api/v1/rules", func(t *testing.T) {
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lr := listGroupsResponse{}
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getResp(ts.URL+"/api/v1/rules", &lr, 200)
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if length := len(lr.Data.Groups); length != 1 {
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t.Errorf("expected 1 group got %d", length)
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}
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lr = listGroupsResponse{}
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getResp(ts.URL+"/vmalert/api/v1/rules", &lr, 200)
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if length := len(lr.Data.Groups); length != 1 {
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t.Errorf("expected 1 group got %d", length)
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}
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})
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t.Run("/api/v1/rule?ruleID&groupID", func(t *testing.T) {
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expRule := ruleToAPI(ar)
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gotRule := apiRule{}
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getResp(ts.URL+"/"+expRule.APILink(), &gotRule, 200)
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if expRule.ID != gotRule.ID {
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t.Errorf("expected to get Rule %q; got %q instead", expRule.ID, gotRule.ID)
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}
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gotRule = apiRule{}
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getResp(ts.URL+"/vmalert/"+expRule.APILink(), &gotRule, 200)
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if expRule.ID != gotRule.ID {
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t.Errorf("expected to get Rule %q; got %q instead", expRule.ID, gotRule.ID)
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}
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gotRuleWithUpdates := apiRuleWithUpdates{}
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getResp(ts.URL+"/"+expRule.APILink(), &gotRuleWithUpdates, 200)
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if gotRuleWithUpdates.StateUpdates == nil || len(gotRuleWithUpdates.StateUpdates) < 1 {
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t.Fatalf("expected %+v to have state updates field not empty", gotRuleWithUpdates.StateUpdates)
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}
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})
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t.Run("/api/v1/rules&filters", func(t *testing.T) {
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check := func(url string, expGroups, expRules int) {
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t.Helper()
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lr := listGroupsResponse{}
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getResp(ts.URL+url, &lr, 200)
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if length := len(lr.Data.Groups); length != expGroups {
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t.Errorf("expected %d groups got %d", expGroups, length)
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}
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if len(lr.Data.Groups) < 1 {
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return
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}
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var rulesN int
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for _, gr := range lr.Data.Groups {
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rulesN += len(gr.Rules)
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}
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if rulesN != expRules {
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t.Errorf("expected %d rules got %d", expRules, rulesN)
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}
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}
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check("/api/v1/rules?type=alert", 1, 1)
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check("/api/v1/rules?type=record", 1, 1)
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check("/vmalert/api/v1/rules?type=alert", 1, 1)
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check("/vmalert/api/v1/rules?type=record", 1, 1)
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// no filtering expected due to bad params
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check("/api/v1/rules?type=badParam", 1, 2)
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check("/api/v1/rules?foo=bar", 1, 2)
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check("/api/v1/rules?rule_group[]=foo&rule_group[]=bar", 0, 0)
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check("/api/v1/rules?rule_group[]=foo&rule_group[]=group&rule_group[]=bar", 1, 2)
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check("/api/v1/rules?rule_group[]=group&file[]=foo", 0, 0)
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check("/api/v1/rules?rule_group[]=group&file[]=rules.yaml", 1, 2)
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check("/api/v1/rules?rule_group[]=group&file[]=rules.yaml&rule_name[]=foo", 1, 0)
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check("/api/v1/rules?rule_group[]=group&file[]=rules.yaml&rule_name[]=alert", 1, 1)
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check("/api/v1/rules?rule_group[]=group&file[]=rules.yaml&rule_name[]=alert&rule_name[]=record", 1, 2)
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})
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t.Run("/api/v1/rules&exclude_alerts=true", func(t *testing.T) {
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// check if response returns active alerts by default
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lr := listGroupsResponse{}
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getResp(ts.URL+"/api/v1/rules?rule_group[]=group&file[]=rules.yaml", &lr, 200)
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activeAlerts := 0
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for _, gr := range lr.Data.Groups {
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for _, r := range gr.Rules {
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activeAlerts += len(r.Alerts)
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}
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}
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if activeAlerts == 0 {
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t.Fatalf("expected at least 1 active alert in response; got 0")
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}
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// disable returning alerts via param
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lr = listGroupsResponse{}
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getResp(ts.URL+"/api/v1/rules?rule_group[]=group&file[]=rules.yaml&exclude_alerts=true", &lr, 200)
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activeAlerts = 0
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for _, gr := range lr.Data.Groups {
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for _, r := range gr.Rules {
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activeAlerts += len(r.Alerts)
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}
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}
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if activeAlerts != 0 {
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t.Fatalf("expected to get 0 active alert in response; got %d", activeAlerts)
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}
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})
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}
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func TestEmptyResponse(t *testing.T) {
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rhWithNoGroups := &requestHandler{m: &manager{groups: make(map[uint64]*rule.Group)}}
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { rhWithNoGroups.handler(w, r) }))
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defer ts.Close()
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getResp := func(url string, to interface{}, code int) {
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t.Helper()
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resp, err := http.Get(url)
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if err != nil {
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t.Fatalf("unexpected err %s", err)
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}
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if code != resp.StatusCode {
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t.Errorf("unexpected status code %d want %d", resp.StatusCode, code)
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}
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defer func() {
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if err := resp.Body.Close(); err != nil {
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t.Errorf("err closing body %s", err)
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}
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}()
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if to != nil {
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if err = json.NewDecoder(resp.Body).Decode(to); err != nil {
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t.Errorf("unexpected err %s", err)
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}
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}
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}
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t.Run("no groups /api/v1/alerts", func(t *testing.T) {
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lr := listAlertsResponse{}
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getResp(ts.URL+"/api/v1/alerts", &lr, 200)
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if lr.Data.Alerts == nil {
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t.Errorf("expected /api/v1/alerts response to have non-nil data")
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}
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lr = listAlertsResponse{}
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getResp(ts.URL+"/vmalert/api/v1/alerts", &lr, 200)
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if lr.Data.Alerts == nil {
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t.Errorf("expected /api/v1/alerts response to have non-nil data")
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}
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})
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t.Run("no groups /api/v1/rules", func(t *testing.T) {
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lr := listGroupsResponse{}
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getResp(ts.URL+"/api/v1/rules", &lr, 200)
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if lr.Data.Groups == nil {
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t.Errorf("expected /api/v1/rules response to have non-nil data")
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}
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lr = listGroupsResponse{}
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getResp(ts.URL+"/vmalert/api/v1/rules", &lr, 200)
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if lr.Data.Groups == nil {
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t.Errorf("expected /api/v1/rules response to have non-nil data")
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}
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})
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rhWithEmptyGroup := &requestHandler{m: &manager{groups: map[uint64]*rule.Group{0: {Name: "test"}}}}
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ts.Config.Handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { rhWithEmptyGroup.handler(w, r) })
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t.Run("empty group /api/v1/rules", func(t *testing.T) {
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lr := listGroupsResponse{}
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getResp(ts.URL+"/api/v1/rules", &lr, 200)
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if lr.Data.Groups == nil {
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t.Fatalf("expected /api/v1/rules response to have non-nil data")
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}
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lr = listGroupsResponse{}
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getResp(ts.URL+"/vmalert/api/v1/rules", &lr, 200)
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if lr.Data.Groups == nil {
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t.Fatalf("expected /api/v1/rules response to have non-nil data")
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}
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group := lr.Data.Groups[0]
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if group.Rules == nil {
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t.Fatalf("expected /api/v1/rules response to have non-nil rules for group")
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}
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})
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}
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