prometheus/documentation/examples/custom-sd/adapter/adapter_test.go
Augustin Husson f60620ec0b format comment
Signed-off-by: Augustin Husson <husson.augustin@gmail.com>
2018-09-26 10:48:35 +02:00

153 lines
3.5 KiB
Go

// Copyright 2018 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package adapter
import (
"reflect"
"testing"
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/discovery/targetgroup"
)
// TestGenerateTargetGroups checks that the target is correctly generated.
// It covers the case when the target is empty.
func TestGenerateTargetGroups(t *testing.T) {
testCases := []struct {
title string
targetGroup map[string][]*targetgroup.Group
expectedCustomSD map[string]*customSD
}{
{
title: "Empty targetGroup",
targetGroup: map[string][]*targetgroup.Group{
"customSD": {
{
Source: "Consul",
},
{
Source: "Kubernetes",
},
},
},
expectedCustomSD: map[string]*customSD{},
},
{
title: "targetGroup filled",
targetGroup: map[string][]*targetgroup.Group{
"customSD": {
{
Source: "Azure",
Targets: []model.LabelSet{
{
model.AddressLabel: "host1",
},
{
model.AddressLabel: "host2",
},
},
Labels: model.LabelSet{
model.LabelName("__meta_test_label"): model.LabelValue("label_test_1"),
},
},
{
Source: "Openshift",
Targets: []model.LabelSet{
{
model.AddressLabel: "host3",
},
{
model.AddressLabel: "host4",
},
},
Labels: model.LabelSet{
model.LabelName("__meta_test_label"): model.LabelValue("label_test_2"),
},
},
},
},
expectedCustomSD: map[string]*customSD{
"customSD:Azure:0": {
Targets: []string{
"host1",
"host2",
},
Labels: map[string]string{
"__meta_test_label": "label_test_1",
},
},
"customSD:Openshift:1": {
Targets: []string{
"host3",
"host4",
},
Labels: map[string]string{
"__meta_test_label": "label_test_2",
},
},
},
},
{
title: "Mixed between empty targetGroup and targetGroup filled",
targetGroup: map[string][]*targetgroup.Group{
"customSD": {
{
Source: "GCE",
Targets: []model.LabelSet{
{
model.AddressLabel: "host1",
},
{
model.AddressLabel: "host2",
},
},
Labels: model.LabelSet{
model.LabelName("__meta_test_label"): model.LabelValue("label_test_1"),
},
},
{
Source: "Kubernetes",
Labels: model.LabelSet{
model.LabelName("__meta_test_label"): model.LabelValue("label_test_2"),
},
},
},
},
expectedCustomSD: map[string]*customSD{
"customSD:GCE:0": {
Targets: []string{
"host1",
"host2",
},
Labels: map[string]string{
"__meta_test_label": "label_test_1",
},
},
},
},
}
for _, testCase := range testCases {
result := generateTargetGroups(testCase.targetGroup)
if !reflect.DeepEqual(result, testCase.expectedCustomSD) {
t.Errorf("%q failed\ngot: %#v\nexpected: %v",
testCase.title,
result,
testCase.expectedCustomSD)
}
}
}