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discovery manager - doesn't need sorting of the target groups so move it in the discovery manager tests as we only need it there.

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discovery manager - refactor the discovery tests.

Signed-off-by: Krasi Georgiev <krasi.root@gmail.com>
pull/3654/head
Krasi Georgiev 7 years ago
parent 638818a974
commit 135ea0f793
2 changed files with 164 additions and 103 deletions
Show Stats Download Patch File Download Diff File

23
discovery/manager.go
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@ -16,7 +16,6 @@ package discovery
import (
"context"
"fmt"
"sort"
"github.com/go-kit/kit/log"
"github.com/go-kit/kit/log/level"
@ -59,14 +58,6 @@ type poolKey struct {
provider string
}
// byProvider implements sort.Interface for []poolKey based on the provider field.
// Sorting is needed so that we can have predictable tests.
type byProvider []poolKey
func (a byProvider) Len() int { return len(a) }
func (a byProvider) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
func (a byProvider) Less(i, j int) bool { return a[i].provider < a[j].provider }
// NewManager is the Discovery Manager constructor
func NewManager(logger log.Logger) *Manager {
return &Manager{
@ -182,18 +173,10 @@ func (m *Manager) allGroups() map[string][]*targetgroup.Group {
tSets := make(chan map[string][]*targetgroup.Group)
m.actionCh <- func(ctx context.Context) {
// Sorting by the poolKey is needed so that we can have predictable tests.
var pKeys []poolKey
for pk := range m.targets {
pKeys = append(pKeys, pk)
}
sort.Sort(byProvider(pKeys))
tSetsAll := map[string][]*targetgroup.Group{}
for _, pk := range pKeys {
for _, tg := range m.targets[pk] {
tSetsAll[pk.setName] = append(tSetsAll[pk.setName], tg)
for pkey, tsets := range m.targets {
for _, tg := range tsets {
tSetsAll[pkey.setName] = append(tSetsAll[pkey.setName], tg)
}
}
tSets <- tSetsAll

244
discovery/manager_test.go
Unescape View File

@ -17,6 +17,7 @@ import (
"context"
"fmt"
"reflect"
"sort"
"strconv"
"testing"
"time"
@ -103,11 +104,11 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
{
targetGroups: []targetgroup.Group{
{
Source: "initial1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
{
Source: "initial2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "2"}},
}},
},
@ -116,11 +117,11 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
expectedTargets: [][]*targetgroup.Group{
{
{
Source: "initial1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
{
Source: "initial2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "2"}},
},
},
@ -133,11 +134,11 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
{
targetGroups: []targetgroup.Group{
{
Source: "tp1-initial1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
{
Source: "tp1-initial2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "2"}},
},
},
@ -147,7 +148,7 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
{
targetGroups: []targetgroup.Group{
{
Source: "tp2-initial1",
Source: "tp2_group1",
Targets: []model.LabelSet{{"__instance__": "3"}},
},
},
@ -158,24 +159,24 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
expectedTargets: [][]*targetgroup.Group{
{
{
Source: "tp1-initial1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
{
Source: "tp1-initial2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "2"}},
},
}, {
{
Source: "tp1-initial1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
{
Source: "tp1-initial2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "2"}},
},
{
Source: "tp2-initial1",
Source: "tp2_group1",
Targets: []model.LabelSet{{"__instance__": "3"}},
},
},
@ -188,34 +189,52 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
{
targetGroups: []targetgroup.Group{
{
Source: "initial1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
{
Source: "initial2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "2"}},
},
},
interval: 0,
},
{
targetGroups: []targetgroup.Group{},
interval: 10,
targetGroups: []targetgroup.Group{
{
Source: "tp1_group1",
Targets: []model.LabelSet{},
},
{
Source: "tp1_group2",
Targets: []model.LabelSet{},
},
},
interval: 10,
},
},
},
expectedTargets: [][]*targetgroup.Group{
{
{
Source: "initial1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
{
Source: "initial2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "2"}},
},
},
{},
{
{
Source: "tp1_group1",
Targets: []model.LabelSet{},
},
{
Source: "tp1_group2",
Targets: []model.LabelSet{},
},
},
},
},
{
@ -225,11 +244,11 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
{
targetGroups: []targetgroup.Group{
{
Source: "initial1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
{
Source: "initial2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "2"}},
},
},
@ -238,13 +257,17 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
{
targetGroups: []targetgroup.Group{
{
Source: "update1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "3"}},
},
{
Source: "update2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "4"}},
},
{
Source: "tp1_group3",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
},
interval: 10,
},
@ -253,23 +276,27 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
expectedTargets: [][]*targetgroup.Group{
{
{
Source: "initial1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
{
Source: "initial2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "2"}},
},
},
{
{
Source: "update1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "3"}},
},
{
Source: "update2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "4"}},
},
{
Source: "tp1_group3",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
},
},
},
@ -280,11 +307,11 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
{
targetGroups: []targetgroup.Group{
{
Source: "tp1-initial1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
{
Source: "tp1-initial2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "2"}},
},
},
@ -293,11 +320,11 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
{
targetGroups: []targetgroup.Group{
{
Source: "tp1-update1",
Source: "tp1_group3",
Targets: []model.LabelSet{{"__instance__": "3"}},
},
{
Source: "tp1-update2",
Source: "tp1_group4",
Targets: []model.LabelSet{{"__instance__": "4"}},
},
},
@ -308,11 +335,11 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
{
targetGroups: []targetgroup.Group{
{
Source: "tp2-initial1",
Source: "tp2_group1",
Targets: []model.LabelSet{{"__instance__": "5"}},
},
{
Source: "tp2-initial2",
Source: "tp2_group2",
Targets: []model.LabelSet{{"__instance__": "6"}},
},
},
@ -321,11 +348,11 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
{
targetGroups: []targetgroup.Group{
{
Source: "tp2-update1",
Source: "tp2_group3",
Targets: []model.LabelSet{{"__instance__": "7"}},
},
{
Source: "tp2-update2",
Source: "tp2_group4",
Targets: []model.LabelSet{{"__instance__": "8"}},
},
},
@ -336,82 +363,106 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
expectedTargets: [][]*targetgroup.Group{
{
{
Source: "tp1-initial1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
{
Source: "tp1-initial2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "2"}},
},
},
{
{
Source: "tp1-initial1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
{
Source: "tp1-initial2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "2"}},
},
{
Source: "tp2-initial1",
Source: "tp2_group1",
Targets: []model.LabelSet{{"__instance__": "5"}},
},
{
Source: "tp2-initial2",
Source: "tp2_group2",
Targets: []model.LabelSet{{"__instance__": "6"}},
},
},
{
{
Source: "tp1-initial1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
{
Source: "tp1-initial2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "2"}},
},
{
Source: "tp2-update1",
Source: "tp2_group1",
Targets: []model.LabelSet{{"__instance__": "5"}},
},
{
Source: "tp2_group2",
Targets: []model.LabelSet{{"__instance__": "6"}},
},
{
Source: "tp2_group3",
Targets: []model.LabelSet{{"__instance__": "7"}},
},
{
Source: "tp2-update2",
Source: "tp2_group4",
Targets: []model.LabelSet{{"__instance__": "8"}},
},
},
{
{
Source: "tp1-update1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
{
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "2"}},
},
{
Source: "tp1_group3",
Targets: []model.LabelSet{{"__instance__": "3"}},
},
{
Source: "tp1-update2",
Source: "tp1_group4",
Targets: []model.LabelSet{{"__instance__": "4"}},
},
{
Source: "tp2-update1",
Source: "tp2_group1",
Targets: []model.LabelSet{{"__instance__": "5"}},
},
{
Source: "tp2_group2",
Targets: []model.LabelSet{{"__instance__": "6"}},
},
{
Source: "tp2_group3",
Targets: []model.LabelSet{{"__instance__": "7"}},
},
{
Source: "tp2-update2",
Source: "tp2_group4",
Targets: []model.LabelSet{{"__instance__": "8"}},
},
},
},
},
{
title: "One tp initials arrive after other tp updates.",
title: "One TP initials arrive after other TP updates.",
updates: map[string][]update{
"tp1": {
{
targetGroups: []targetgroup.Group{
{
Source: "tp1-initial1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
{
Source: "tp1-initial2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "2"}},
},
},
@ -420,11 +471,11 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
{
targetGroups: []targetgroup.Group{
{
Source: "tp1-update1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "3"}},
},
{
Source: "tp1-update2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "4"}},
},
},
@ -435,11 +486,11 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
{
targetGroups: []targetgroup.Group{
{
Source: "tp2-initial1",
Source: "tp2_group1",
Targets: []model.LabelSet{{"__instance__": "5"}},
},
{
Source: "tp2-initial2",
Source: "tp2_group2",
Targets: []model.LabelSet{{"__instance__": "6"}},
},
},
@ -448,11 +499,11 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
{
targetGroups: []targetgroup.Group{
{
Source: "tp2-update1",
Source: "tp2_group1",
Targets: []model.LabelSet{{"__instance__": "7"}},
},
{
Source: "tp2-update2",
Source: "tp2_group2",
Targets: []model.LabelSet{{"__instance__": "8"}},
},
},
@ -463,57 +514,57 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
expectedTargets: [][]*targetgroup.Group{
{
{
Source: "tp1-initial1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
{
Source: "tp1-initial2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "2"}},
},
},
{
{
Source: "tp1-update1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "3"}},
},
{
Source: "tp1-update2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "4"}},
},
},
{
{
Source: "tp1-update1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "3"}},
},
{
Source: "tp1-update2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "4"}},
},
{
Source: "tp2-initial1",
Source: "tp2_group1",
Targets: []model.LabelSet{{"__instance__": "5"}},
},
{
Source: "tp2-initial2",
Source: "tp2_group2",
Targets: []model.LabelSet{{"__instance__": "6"}},
},
},
{
{
Source: "tp1-update1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "3"}},
},
{
Source: "tp1-update2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "4"}},
},
{
Source: "tp2-update1",
Source: "tp2_group1",
Targets: []model.LabelSet{{"__instance__": "7"}},
},
{
Source: "tp2-update2",
Source: "tp2_group2",
Targets: []model.LabelSet{{"__instance__": "8"}},
},
},
@ -521,34 +572,43 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
},
{
title: "Single TP Single provider empty update in between",
title: "Single TP empty update in between",
updates: map[string][]update{
"tp1": {
{
targetGroups: []targetgroup.Group{
{
Source: "initial1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
{
Source: "initial2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "2"}},
},
},
interval: 30,
},
{
targetGroups: []targetgroup.Group{},
interval: 10,
targetGroups: []targetgroup.Group{
{
Source: "tp1_group1",
Targets: []model.LabelSet{},
},
{
Source: "tp1_group2",
Targets: []model.LabelSet{},
},
},
interval: 10,
},
{
targetGroups: []targetgroup.Group{
{
Source: "update1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "3"}},
},
{
Source: "update2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "4"}},
},
},
@ -559,22 +619,31 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
expectedTargets: [][]*targetgroup.Group{
{
{
Source: "initial1",
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "1"}},
},
{
Source: "initial2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "2"}},
},
},
{},
{
{
Source: "update1",
Source: "tp1_group1",
Targets: []model.LabelSet{},
},
{
Source: "tp1_group2",
Targets: []model.LabelSet{},
},
},
{
{
Source: "tp1_group1",
Targets: []model.LabelSet{{"__instance__": "3"}},
},
{
Source: "update2",
Source: "tp1_group2",
Targets: []model.LabelSet{{"__instance__": "4"}},
},
},
@ -606,6 +675,8 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
break Loop
case tsetMap := <-discoveryManager.SyncCh():
for _, received := range tsetMap {
// Need to sort by the Groups source as the Discovery manager doesn't guarantee the order.
sort.Sort(byGroupSource(received))
if !reflect.DeepEqual(received, testCase.expectedTargets[x]) {
var receivedFormated string
for _, receivedTargets := range received {
@ -628,7 +699,7 @@ func TestDiscoveryManagerSyncCalls(t *testing.T) {
}
func TestTargetSetRecreatesTargetGroupsEveryRun(t *testing.T) {
verifyPresence := func(tSets map[poolKey][]*targetgroup.Group, poolKey poolKey, label string, present bool) {
verifyPresence := func(tSets map[poolKey]map[string]*targetgroup.Group, poolKey poolKey, label string, present bool) {
if _, ok := tSets[poolKey]; !ok {
t.Fatalf("'%s' should be present in Pool keys: %v", poolKey, tSets)
return
@ -729,3 +800,10 @@ func (tp mockdiscoveryProvider) sendUpdates() {
tp.up <- tgs
}
}
// byGroupSource implements sort.Interface so we can sort by the Source field.
type byGroupSource []*targetgroup.Group
func (a byGroupSource) Len() int { return len(a) }
func (a byGroupSource) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
func (a byGroupSource) Less(i, j int) bool { return a[i].Source < a[j].Source }

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