mirror of https://github.com/grafana/grafana.git
717 lines
21 KiB
Go
717 lines
21 KiB
Go
package api
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import (
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"errors"
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"fmt"
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"strconv"
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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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"golang.org/x/exp/rand"
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models2 "github.com/grafana/grafana/pkg/models"
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apimodels "github.com/grafana/grafana/pkg/services/ngalert/api/tooling/definitions"
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"github.com/grafana/grafana/pkg/services/ngalert/models"
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"github.com/grafana/grafana/pkg/services/ngalert/store"
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"github.com/grafana/grafana/pkg/setting"
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"github.com/grafana/grafana/pkg/util"
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)
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var allNoData = []apimodels.NoDataState{
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apimodels.OK,
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apimodels.NoData,
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apimodels.Alerting,
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}
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var allExecError = []apimodels.ExecutionErrorState{
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apimodels.ErrorErrState,
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apimodels.AlertingErrState,
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}
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func config(t *testing.T) *setting.UnifiedAlertingSettings {
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t.Helper()
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baseInterval := time.Duration(rand.Intn(99)+1) * time.Second
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result := &setting.UnifiedAlertingSettings{
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BaseInterval: baseInterval,
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DefaultRuleEvaluationInterval: baseInterval * time.Duration(rand.Intn(9)+1),
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}
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t.Logf("Config Base interval is [%v]", result.BaseInterval)
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return result
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}
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func validRule() apimodels.PostableExtendedRuleNode {
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return apimodels.PostableExtendedRuleNode{
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ApiRuleNode: &apimodels.ApiRuleNode{
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For: model.Duration(rand.Int63n(1000)),
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Labels: map[string]string{
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"test-label": "data",
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},
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Annotations: map[string]string{
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"test-annotation": "data",
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},
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},
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GrafanaManagedAlert: &apimodels.PostableGrafanaRule{
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Title: fmt.Sprintf("TEST-ALERT-%d", rand.Int63()),
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Condition: "A",
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Data: []models.AlertQuery{
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{
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RefID: "A",
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QueryType: "TEST",
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RelativeTimeRange: models.RelativeTimeRange{
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From: 10,
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To: 0,
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},
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DatasourceUID: "DATASOURCE_TEST",
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Model: nil,
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},
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},
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UID: util.GenerateShortUID(),
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NoDataState: allNoData[rand.Intn(len(allNoData)-1)],
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ExecErrState: allExecError[rand.Intn(len(allExecError)-1)],
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},
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}
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}
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func validGroup(cfg *setting.UnifiedAlertingSettings, rules ...apimodels.PostableExtendedRuleNode) apimodels.PostableRuleGroupConfig {
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return apimodels.PostableRuleGroupConfig{
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Name: "TEST-ALERTS-" + util.GenerateShortUID(),
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Interval: model.Duration(cfg.BaseInterval * time.Duration(rand.Int63n(10))),
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Rules: rules,
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}
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}
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func randFolder() *models2.Folder {
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return &models2.Folder{
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Id: rand.Int63(),
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Uid: util.GenerateShortUID(),
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Title: "TEST-FOLDER-" + util.GenerateShortUID(),
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Url: "",
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Version: 0,
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Created: time.Time{},
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Updated: time.Time{},
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UpdatedBy: 0,
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CreatedBy: 0,
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HasAcl: false,
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}
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}
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func TestValidateRuleGroup(t *testing.T) {
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orgId := rand.Int63()
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folder := randFolder()
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rules := make([]apimodels.PostableExtendedRuleNode, 0, rand.Intn(4)+1)
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for i := 0; i < cap(rules); i++ {
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rules = append(rules, validRule())
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}
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cfg := config(t)
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t.Run("should validate struct and rules", func(t *testing.T) {
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g := validGroup(cfg, rules...)
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conditionValidations := 0
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alerts, err := validateRuleGroup(&g, orgId, folder, func(condition models.Condition) error {
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conditionValidations++
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return nil
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}, cfg)
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require.NoError(t, err)
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require.Len(t, alerts, len(rules))
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require.Equal(t, len(rules), conditionValidations)
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})
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t.Run("should default to default interval from config if group interval is 0", func(t *testing.T) {
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g := validGroup(cfg, rules...)
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g.Interval = 0
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alerts, err := validateRuleGroup(&g, orgId, folder, func(condition models.Condition) error {
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return nil
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}, cfg)
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require.NoError(t, err)
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for _, alert := range alerts {
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require.Equal(t, int64(cfg.DefaultRuleEvaluationInterval.Seconds()), alert.IntervalSeconds)
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}
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})
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}
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func TestValidateRuleGroupFailures(t *testing.T) {
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orgId := rand.Int63()
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folder := randFolder()
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cfg := config(t)
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testCases := []struct {
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name string
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group func() *apimodels.PostableRuleGroupConfig
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assert func(t *testing.T, apiModel *apimodels.PostableRuleGroupConfig, err error)
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}{
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{
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name: "fail if title is empty",
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group: func() *apimodels.PostableRuleGroupConfig {
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g := validGroup(cfg)
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g.Name = ""
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return &g
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},
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},
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{
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name: "fail if title is too long",
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group: func() *apimodels.PostableRuleGroupConfig {
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g := validGroup(cfg)
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for len(g.Name) < store.AlertRuleMaxRuleGroupNameLength {
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g.Name += g.Name
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}
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return &g
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},
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},
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{
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name: "fail if interval is negative",
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group: func() *apimodels.PostableRuleGroupConfig {
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g := validGroup(cfg)
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g.Interval = model.Duration(-(rand.Int63n(1000) + 1))
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return &g
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},
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},
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{
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name: "fail if interval is not aligned with base interval",
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group: func() *apimodels.PostableRuleGroupConfig {
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g := validGroup(cfg)
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g.Interval = model.Duration(cfg.BaseInterval + time.Duration(rand.Intn(10)+1)*time.Second)
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return &g
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},
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},
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{
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name: "fail if two rules have same UID",
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group: func() *apimodels.PostableRuleGroupConfig {
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r1 := validRule()
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r2 := validRule()
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uid := util.GenerateShortUID()
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r1.GrafanaManagedAlert.UID = uid
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r2.GrafanaManagedAlert.UID = uid
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g := validGroup(cfg, r1, r2)
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return &g
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},
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assert: func(t *testing.T, apiModel *apimodels.PostableRuleGroupConfig, err error) {
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require.Contains(t, err.Error(), apiModel.Rules[0].GrafanaManagedAlert.UID)
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},
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},
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}
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for _, testCase := range testCases {
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t.Run(testCase.name, func(t *testing.T) {
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g := testCase.group()
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_, err := validateRuleGroup(g, orgId, folder, func(condition models.Condition) error {
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return nil
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}, cfg)
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require.Error(t, err)
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if testCase.assert != nil {
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testCase.assert(t, g, err)
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}
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})
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}
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}
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func TestValidateRuleNode_NoUID(t *testing.T) {
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orgId := rand.Int63()
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folder := randFolder()
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name := util.GenerateShortUID()
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var cfg = config(t)
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interval := cfg.BaseInterval * time.Duration(rand.Int63n(10)+1)
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testCases := []struct {
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name string
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rule func() *apimodels.PostableExtendedRuleNode
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assert func(t *testing.T, model *apimodels.PostableExtendedRuleNode, rule *models.AlertRule)
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}{
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{
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name: "coverts api model to AlertRule",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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return &r
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},
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assert: func(t *testing.T, api *apimodels.PostableExtendedRuleNode, alert *models.AlertRule) {
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require.Equal(t, int64(0), alert.ID)
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require.Equal(t, orgId, alert.OrgID)
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require.Equal(t, api.GrafanaManagedAlert.Title, alert.Title)
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require.Equal(t, api.GrafanaManagedAlert.Condition, alert.Condition)
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require.Equal(t, api.GrafanaManagedAlert.Data, alert.Data)
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require.Equal(t, time.Time{}, alert.Updated)
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require.Equal(t, int64(interval.Seconds()), alert.IntervalSeconds)
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require.Equal(t, int64(0), alert.Version)
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require.Equal(t, api.GrafanaManagedAlert.UID, alert.UID)
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require.Equal(t, folder.Uid, alert.NamespaceUID)
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require.Nil(t, alert.DashboardUID)
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require.Nil(t, alert.PanelID)
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require.Equal(t, name, alert.RuleGroup)
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require.Equal(t, models.NoDataState(api.GrafanaManagedAlert.NoDataState), alert.NoDataState)
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require.Equal(t, models.ExecutionErrorState(api.GrafanaManagedAlert.ExecErrState), alert.ExecErrState)
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require.Equal(t, time.Duration(api.ApiRuleNode.For), alert.For)
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require.Equal(t, api.ApiRuleNode.Annotations, alert.Annotations)
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require.Equal(t, api.ApiRuleNode.Labels, alert.Labels)
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},
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},
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{
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name: "coverts api without ApiRuleNode",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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r.ApiRuleNode = nil
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return &r
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},
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assert: func(t *testing.T, api *apimodels.PostableExtendedRuleNode, alert *models.AlertRule) {
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require.Equal(t, time.Duration(0), alert.For)
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require.Nil(t, alert.Annotations)
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require.Nil(t, alert.Labels)
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},
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},
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{
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name: "defaults to NoData if NoDataState is empty",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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r.GrafanaManagedAlert.NoDataState = ""
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return &r
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},
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assert: func(t *testing.T, api *apimodels.PostableExtendedRuleNode, alert *models.AlertRule) {
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require.Equal(t, models.NoData, alert.NoDataState)
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},
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},
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{
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name: "defaults to Alerting if ExecErrState is empty",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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r.GrafanaManagedAlert.ExecErrState = ""
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return &r
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},
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assert: func(t *testing.T, api *apimodels.PostableExtendedRuleNode, alert *models.AlertRule) {
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require.Equal(t, models.AlertingErrState, alert.ExecErrState)
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},
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},
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{
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name: "extracts Dashboard UID and Panel Id from annotations",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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r.ApiRuleNode.Annotations = map[string]string{
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models.DashboardUIDAnnotation: util.GenerateShortUID(),
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models.PanelIDAnnotation: strconv.Itoa(rand.Int()),
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}
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return &r
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},
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assert: func(t *testing.T, api *apimodels.PostableExtendedRuleNode, alert *models.AlertRule) {
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require.Equal(t, api.ApiRuleNode.Annotations[models.DashboardUIDAnnotation], *alert.DashboardUID)
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panelId, err := strconv.Atoi(api.ApiRuleNode.Annotations[models.PanelIDAnnotation])
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require.NoError(t, err)
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require.Equal(t, int64(panelId), *alert.PanelID)
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},
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},
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}
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for _, testCase := range testCases {
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t.Run(testCase.name, func(t *testing.T) {
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r := testCase.rule()
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r.GrafanaManagedAlert.UID = ""
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alert, err := validateRuleNode(r, name, interval, orgId, folder, func(condition models.Condition) error {
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return nil
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}, cfg)
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require.NoError(t, err)
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testCase.assert(t, r, alert)
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})
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}
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t.Run("accepts empty group name", func(t *testing.T) {
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r := validRule()
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alert, err := validateRuleNode(&r, "", interval, orgId, folder, func(condition models.Condition) error {
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return nil
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}, cfg)
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require.NoError(t, err)
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require.Equal(t, "", alert.RuleGroup)
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})
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}
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func TestValidateRuleNodeFailures_NoUID(t *testing.T) {
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orgId := rand.Int63()
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folder := randFolder()
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cfg := config(t)
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successValidation := func(condition models.Condition) error {
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return nil
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}
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testCases := []struct {
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name string
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interval *time.Duration
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rule func() *apimodels.PostableExtendedRuleNode
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conditionValidation func(condition models.Condition) error
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assert func(t *testing.T, model *apimodels.PostableExtendedRuleNode, err error)
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allowedIfNoUId bool
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}{
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{
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name: "fail if GrafanaManagedAlert is not specified",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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r.GrafanaManagedAlert = nil
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return &r
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},
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},
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{
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name: "fail if title is empty",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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r.GrafanaManagedAlert.Title = ""
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return &r
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},
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},
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{
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name: "fail if title is too long",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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for len(r.GrafanaManagedAlert.Title) < store.AlertRuleMaxTitleLength {
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r.GrafanaManagedAlert.Title += r.GrafanaManagedAlert.Title
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}
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return &r
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},
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},
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{
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name: "fail if NoDataState is not known",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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r.GrafanaManagedAlert.NoDataState = apimodels.NoDataState(util.GenerateShortUID())
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return &r
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},
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},
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{
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name: "fail if ExecErrState is not known",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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r.GrafanaManagedAlert.ExecErrState = apimodels.ExecutionErrorState(util.GenerateShortUID())
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return &r
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},
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},
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{
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name: "fail if there are not data (nil)",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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r.GrafanaManagedAlert.Data = nil
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return &r
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},
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},
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{
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name: "fail if there are not data (empty)",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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r.GrafanaManagedAlert.Data = make([]models.AlertQuery, 0, 1)
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return &r
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},
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},
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{
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name: "fail if validator function returns error",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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return &r
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},
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conditionValidation: func(condition models.Condition) error {
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return errors.New("BAD alert condition")
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},
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},
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{
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name: "fail if Dashboard UID is specified but not Panel ID",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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r.ApiRuleNode.Annotations = map[string]string{
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models.DashboardUIDAnnotation: util.GenerateShortUID(),
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}
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return &r
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},
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},
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{
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name: "fail if Dashboard UID is specified and Panel ID is NaN",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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r.ApiRuleNode.Annotations = map[string]string{
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models.DashboardUIDAnnotation: util.GenerateShortUID(),
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models.PanelIDAnnotation: util.GenerateShortUID(),
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}
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return &r
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},
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},
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{
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name: "fail if PanelID is specified but not Dashboard UID ",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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r.ApiRuleNode.Annotations = map[string]string{
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models.PanelIDAnnotation: "0",
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}
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return &r
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},
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},
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}
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for _, testCase := range testCases {
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t.Run(testCase.name, func(t *testing.T) {
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r := testCase.rule()
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if r.GrafanaManagedAlert != nil {
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r.GrafanaManagedAlert.UID = ""
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}
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f := successValidation
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if testCase.conditionValidation != nil {
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f = testCase.conditionValidation
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}
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interval := cfg.BaseInterval
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if testCase.interval != nil {
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interval = *testCase.interval
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}
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_, err := validateRuleNode(r, "", interval, orgId, folder, f, cfg)
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require.Error(t, err)
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if testCase.assert != nil {
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testCase.assert(t, r, err)
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}
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})
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}
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}
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func TestValidateRuleNode_UID(t *testing.T) {
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orgId := rand.Int63()
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folder := randFolder()
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name := util.GenerateShortUID()
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var cfg = config(t)
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interval := cfg.BaseInterval * time.Duration(rand.Int63n(10)+1)
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testCases := []struct {
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name string
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rule func() *apimodels.PostableExtendedRuleNode
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assert func(t *testing.T, model *apimodels.PostableExtendedRuleNode, rule *models.AlertRule)
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}{
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{
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name: "use empty Title",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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r.GrafanaManagedAlert.Title = ""
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return &r
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},
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assert: func(t *testing.T, api *apimodels.PostableExtendedRuleNode, alert *models.AlertRule) {
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require.Equal(t, "", alert.Title)
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},
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},
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{
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name: "use empty NoData if NoDataState is empty",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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r.GrafanaManagedAlert.NoDataState = ""
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return &r
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},
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assert: func(t *testing.T, api *apimodels.PostableExtendedRuleNode, alert *models.AlertRule) {
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require.Equal(t, models.NoDataState(""), alert.NoDataState)
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},
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},
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{
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name: "use empty Alerting if ExecErrState is empty",
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rule: func() *apimodels.PostableExtendedRuleNode {
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r := validRule()
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r.GrafanaManagedAlert.ExecErrState = ""
|
|
return &r
|
|
},
|
|
assert: func(t *testing.T, api *apimodels.PostableExtendedRuleNode, alert *models.AlertRule) {
|
|
require.Equal(t, models.ExecutionErrorState(""), alert.ExecErrState)
|
|
},
|
|
},
|
|
{
|
|
name: "use empty Condition and Data if they are empty",
|
|
rule: func() *apimodels.PostableExtendedRuleNode {
|
|
r := validRule()
|
|
r.GrafanaManagedAlert.Condition = ""
|
|
r.GrafanaManagedAlert.Data = nil
|
|
if rand.Int63()%2 == 0 {
|
|
r.GrafanaManagedAlert.Data = make([]models.AlertQuery, 0)
|
|
}
|
|
return &r
|
|
},
|
|
assert: func(t *testing.T, api *apimodels.PostableExtendedRuleNode, alert *models.AlertRule) {
|
|
require.Equal(t, "", alert.Condition)
|
|
require.Len(t, alert.Data, 0)
|
|
},
|
|
},
|
|
{
|
|
name: "extracts Dashboard UID and Panel Id from annotations",
|
|
rule: func() *apimodels.PostableExtendedRuleNode {
|
|
r := validRule()
|
|
r.ApiRuleNode.Annotations = map[string]string{
|
|
models.DashboardUIDAnnotation: util.GenerateShortUID(),
|
|
models.PanelIDAnnotation: strconv.Itoa(rand.Int()),
|
|
}
|
|
return &r
|
|
},
|
|
assert: func(t *testing.T, api *apimodels.PostableExtendedRuleNode, alert *models.AlertRule) {
|
|
require.Equal(t, api.ApiRuleNode.Annotations[models.DashboardUIDAnnotation], *alert.DashboardUID)
|
|
panelId, err := strconv.Atoi(api.ApiRuleNode.Annotations[models.PanelIDAnnotation])
|
|
require.NoError(t, err)
|
|
require.Equal(t, int64(panelId), *alert.PanelID)
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, testCase := range testCases {
|
|
t.Run(testCase.name, func(t *testing.T) {
|
|
r := testCase.rule()
|
|
alert, err := validateRuleNode(r, name, interval, orgId, folder, func(condition models.Condition) error {
|
|
return nil
|
|
}, cfg)
|
|
require.NoError(t, err)
|
|
testCase.assert(t, r, alert)
|
|
})
|
|
}
|
|
|
|
t.Run("accepts empty group name", func(t *testing.T) {
|
|
r := validRule()
|
|
alert, err := validateRuleNode(&r, "", interval, orgId, folder, func(condition models.Condition) error {
|
|
return nil
|
|
}, cfg)
|
|
require.NoError(t, err)
|
|
require.Equal(t, "", alert.RuleGroup)
|
|
})
|
|
}
|
|
|
|
func TestValidateRuleNodeFailures_UID(t *testing.T) {
|
|
orgId := rand.Int63()
|
|
folder := randFolder()
|
|
cfg := config(t)
|
|
successValidation := func(condition models.Condition) error {
|
|
return nil
|
|
}
|
|
|
|
testCases := []struct {
|
|
name string
|
|
interval *time.Duration
|
|
rule func() *apimodels.PostableExtendedRuleNode
|
|
conditionValidation func(condition models.Condition) error
|
|
assert func(t *testing.T, model *apimodels.PostableExtendedRuleNode, err error)
|
|
}{
|
|
{
|
|
name: "fail if GrafanaManagedAlert is not specified",
|
|
rule: func() *apimodels.PostableExtendedRuleNode {
|
|
r := validRule()
|
|
r.GrafanaManagedAlert = nil
|
|
return &r
|
|
},
|
|
},
|
|
{
|
|
name: "fail if title is too long",
|
|
rule: func() *apimodels.PostableExtendedRuleNode {
|
|
r := validRule()
|
|
for len(r.GrafanaManagedAlert.Title) < store.AlertRuleMaxTitleLength {
|
|
r.GrafanaManagedAlert.Title += r.GrafanaManagedAlert.Title
|
|
}
|
|
return &r
|
|
},
|
|
},
|
|
{
|
|
name: "fail if there are not data (nil) but condition is set",
|
|
rule: func() *apimodels.PostableExtendedRuleNode {
|
|
r := validRule()
|
|
r.GrafanaManagedAlert.Data = nil
|
|
r.GrafanaManagedAlert.Condition = "A"
|
|
return &r
|
|
},
|
|
},
|
|
{
|
|
name: "fail if there are not data (empty) but condition is set",
|
|
rule: func() *apimodels.PostableExtendedRuleNode {
|
|
r := validRule()
|
|
r.GrafanaManagedAlert.Data = make([]models.AlertQuery, 0, 1)
|
|
r.GrafanaManagedAlert.Condition = "A"
|
|
return &r
|
|
},
|
|
},
|
|
{
|
|
name: "fail if validator function returns error",
|
|
rule: func() *apimodels.PostableExtendedRuleNode {
|
|
r := validRule()
|
|
return &r
|
|
},
|
|
conditionValidation: func(condition models.Condition) error {
|
|
return errors.New("BAD alert condition")
|
|
},
|
|
},
|
|
{
|
|
name: "fail if Dashboard UID is specified but not Panel ID",
|
|
rule: func() *apimodels.PostableExtendedRuleNode {
|
|
r := validRule()
|
|
r.ApiRuleNode.Annotations = map[string]string{
|
|
models.DashboardUIDAnnotation: util.GenerateShortUID(),
|
|
}
|
|
return &r
|
|
},
|
|
},
|
|
{
|
|
name: "fail if Dashboard UID is specified and Panel ID is NaN",
|
|
rule: func() *apimodels.PostableExtendedRuleNode {
|
|
r := validRule()
|
|
r.ApiRuleNode.Annotations = map[string]string{
|
|
models.DashboardUIDAnnotation: util.GenerateShortUID(),
|
|
models.PanelIDAnnotation: util.GenerateShortUID(),
|
|
}
|
|
return &r
|
|
},
|
|
},
|
|
{
|
|
name: "fail if PanelID is specified but not Dashboard UID ",
|
|
rule: func() *apimodels.PostableExtendedRuleNode {
|
|
r := validRule()
|
|
r.ApiRuleNode.Annotations = map[string]string{
|
|
models.PanelIDAnnotation: "0",
|
|
}
|
|
return &r
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, testCase := range testCases {
|
|
t.Run(testCase.name, func(t *testing.T) {
|
|
r := testCase.rule()
|
|
f := successValidation
|
|
if testCase.conditionValidation != nil {
|
|
f = testCase.conditionValidation
|
|
}
|
|
|
|
interval := cfg.BaseInterval
|
|
if testCase.interval != nil {
|
|
interval = *testCase.interval
|
|
}
|
|
|
|
_, err := validateRuleNode(r, "", interval, orgId, folder, f, cfg)
|
|
require.Error(t, err)
|
|
if testCase.assert != nil {
|
|
testCase.assert(t, r, err)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestValidateRuleNodeIntervalFailures(t *testing.T) {
|
|
cfg := config(t)
|
|
|
|
testCases := []struct {
|
|
name string
|
|
interval time.Duration
|
|
}{
|
|
{
|
|
name: "fail if interval is negative",
|
|
interval: -time.Duration(rand.Int63n(10)+1) * time.Second,
|
|
},
|
|
{
|
|
name: "fail if interval is 0",
|
|
interval: 0,
|
|
},
|
|
{
|
|
name: "fail if interval is not multiple of base interval",
|
|
interval: cfg.BaseInterval + time.Duration(rand.Int63n(int64(cfg.BaseInterval.Seconds())-2)+1)*time.Second,
|
|
},
|
|
}
|
|
|
|
for _, testCase := range testCases {
|
|
t.Run(testCase.name, func(t *testing.T) {
|
|
r := validRule()
|
|
f := func(condition models.Condition) error {
|
|
return nil
|
|
}
|
|
|
|
_, err := validateRuleNode(&r, util.GenerateShortUID(), testCase.interval, rand.Int63(), randFolder(), f, cfg)
|
|
require.Error(t, err)
|
|
})
|
|
}
|
|
}
|