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111 lines
4.0 KiB
111 lines
4.0 KiB
// Copyright 2013 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 notification
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import (
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"bytes"
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"io"
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"io/ioutil"
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"net/http"
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"testing"
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"time"
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clientmodel "github.com/prometheus/client_golang/model"
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)
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type testHttpPoster struct {
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message string
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receivedPost chan<- bool
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}
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func (p *testHttpPoster) Post(url string, bodyType string, body io.Reader) (*http.Response, error) {
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var buf bytes.Buffer
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buf.ReadFrom(body)
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p.message = buf.String()
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p.receivedPost <- true
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return &http.Response{
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Body: ioutil.NopCloser(&bytes.Buffer{}),
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}, nil
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}
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type testNotificationScenario struct {
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description string
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summary string
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message string
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}
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func (s *testNotificationScenario) test(i int, t *testing.T) {
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notifications := make(chan NotificationReqs)
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defer close(notifications)
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h := NewNotificationHandler("alertmanager_url", notifications)
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receivedPost := make(chan bool, 1)
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poster := testHttpPoster{receivedPost: receivedPost}
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h.httpClient = &poster
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go h.Run()
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notifications <- NotificationReqs{
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{
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Summary: s.summary,
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Description: s.description,
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Labels: clientmodel.LabelSet{
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clientmodel.LabelName("instance"): clientmodel.LabelValue("testinstance"),
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},
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Value: clientmodel.SampleValue(1.0 / 3.0),
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ActiveSince: time.Time{},
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RuleString: "Test rule string",
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GeneratorUrl: "prometheus_url",
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},
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}
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<-receivedPost
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if poster.message != s.message {
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t.Fatalf("%d. Expected '%s', received '%s'", i, s.message, poster.message)
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}
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}
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func TestNotificationHandler(t *testing.T) {
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scenarios := []testNotificationScenario{
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{
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// Correct message.
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summary: "{{$labels.instance}} = {{$value}}",
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description: "The alert value for {{$labels.instance}} is {{$value}}",
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message: `[{"Description":"The alert value for testinstance is 0.3333333333333333","Labels":{"instance":"testinstance"},"Payload":{"ActiveSince":"0001-01-01T00:00:00Z","AlertingRule":"Test rule string","GeneratorUrl":"prometheus_url","Value":"0.333333"},"Summary":"testinstance = 0.3333333333333333"}]`,
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},
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{
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// Bad message referring to unknown label.
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summary: "{{$labels.badlabel}} = {{$value}}",
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description: "The alert value for {{$labels.badlabel}} is {{$value}}",
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message: `[{"Description":"The alert value for \u003cno value\u003e is 0.3333333333333333","Labels":{"instance":"testinstance"},"Payload":{"ActiveSince":"0001-01-01T00:00:00Z","AlertingRule":"Test rule string","GeneratorUrl":"prometheus_url","Value":"0.333333"},"Summary":"\u003cno value\u003e = 0.3333333333333333"}]`,
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},
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{
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// Bad message referring to unknown variable.
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summary: "{{$labels.instance}} = {{$badvar}}",
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description: "The alert value for {{$labels.instance}} is {{$badvar}}",
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message: `[{"Description":"The alert value for {{$labels.instance}} is {{$badvar}}","Labels":{"instance":"testinstance"},"Payload":{"ActiveSince":"0001-01-01T00:00:00Z","AlertingRule":"Test rule string","GeneratorUrl":"prometheus_url","Value":"0.333333"},"Summary":"{{$labels.instance}} = {{$badvar}}"}]`,
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},
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{
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// Bad message referring to unknown struct field.
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summary: "{{$labels.instance}} = {{.Val}}",
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description: "The alert value for {{$labels.instance}} is {{.Val}}",
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message: `[{"Description":"The alert value for {{$labels.instance}} is {{.Val}}","Labels":{"instance":"testinstance"},"Payload":{"ActiveSince":"0001-01-01T00:00:00Z","AlertingRule":"Test rule string","GeneratorUrl":"prometheus_url","Value":"0.333333"},"Summary":"{{$labels.instance}} = {{.Val}}"}]`,
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},
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}
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for i, s := range scenarios {
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s.test(i, t)
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}
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}
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