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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| package alertscollector_test | ||
|
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| import ( | ||
| "context" | ||
| "errors" | ||
| "strings" | ||
| "testing" | ||
|
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| "github.com/golang/mock/gomock" | ||
| "github.com/prometheus/alertmanager/api/v2/client/alert" | ||
| "github.com/prometheus/alertmanager/api/v2/models" | ||
| "github.com/prometheus/client_golang/prometheus/testutil" | ||
| "github.com/stretchr/testify/require" | ||
|
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| alertscollector "github.com/appuio/alerts_exporter/internal/alerts_collector" | ||
| "github.com/appuio/alerts_exporter/internal/alerts_collector/mock" | ||
| ) | ||
|
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| //go:generate go run github.com/golang/mock/mockgen -destination=./mock/alert_service.go -package mock github.com/prometheus/alertmanager/api/v2/client/alert ClientService | ||
|
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| func TestAlertsCollector(t *testing.T) { | ||
| ctrl := gomock.NewController(t) | ||
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| mockAlertService := mock.NewMockClientService(ctrl) | ||
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| mockAlertService. | ||
| EXPECT(). | ||
| GetAlerts( | ||
| gomock.Eq(alert.NewGetAlertsParamsWithContext(context.Background()).WithActive(ptr(true))), | ||
| gomock.Any(), | ||
| ). | ||
| Return(&alert.GetAlertsOK{ | ||
| Payload: []*models.GettableAlert{ | ||
| { | ||
| Alert: models.Alert{ | ||
| Labels: map[string]string{ | ||
| "alertname": "ImportantAlert", | ||
| "severity": "critical", | ||
| }, | ||
| }, | ||
| Status: &models.AlertStatus{ | ||
| State: ptr("active"), | ||
| InhibitedBy: []string{"22a8bdd0-9b1e-4855-b8fb-8c1e18fa434f"}, | ||
| SilencedBy: []string{"d505b8d4-c5ce-466f-abd7-c704864299f5"}, | ||
| }, | ||
| }, | ||
| { | ||
| Alert: models.Alert{ | ||
| Labels: map[string]string{ | ||
| "alertname": "WhateverHappensHappens", | ||
| "severity": "low", | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, nil) | ||
|
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| subject := &alertscollector.AlertsCollector{ | ||
| AlertService: mockAlertService, | ||
|
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| WithActive: ptr(true), | ||
| } | ||
|
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| require.NoError(t, | ||
| testutil.CollectAndCompare(subject, strings.NewReader(` | ||
| # HELP alerts_exporter_alerts Alerts queried from the Alertmanager API. Alert state can be found in the '_alerts_exporter_alert_state' label. | ||
| # TYPE alerts_exporter_alerts gauge | ||
| alerts_exporter_alerts{alertname="WhateverHappensHappens",severity="low"} 1 | ||
| alerts_exporter_alerts{_alerts_exporter_alert_inhibited_by="22a8bdd0-9b1e-4855-b8fb-8c1e18fa434f",_alerts_exporter_alert_silenced_by="d505b8d4-c5ce-466f-abd7-c704864299f5",_alerts_exporter_alert_state="active",alertname="ImportantAlert",severity="critical"} 1 | ||
| `), | ||
| ), | ||
| ) | ||
| } | ||
|
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| func TestAlertsCollector_Err(t *testing.T) { | ||
| ctrl := gomock.NewController(t) | ||
| defer ctrl.Finish() | ||
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| mockAlertService := mock.NewMockClientService(ctrl) | ||
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| mockAlertService.EXPECT().GetAlerts(gomock.Any(), gomock.Any()).Return(nil, errors.New("API error")) | ||
|
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| subject := &alertscollector.AlertsCollector{ | ||
| AlertService: mockAlertService, | ||
| } | ||
|
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| require.ErrorContains(t, | ||
| testutil.CollectAndCompare(subject, nil), | ||
| "API error", | ||
| ) | ||
| } | ||
|
|
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| func ptr[T any](t T) *T { return &t } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| //go:build tools | ||
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| package tools | ||
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| import _ "github.com/golang/mock/mockgen" |