kubernetes/pkg/scheduler/framework/runtime/framework_test.go
Aldo Culquicondor 698eda3079 Add profile label to scheduler extension point metrics
Signed-off-by: Aldo Culquicondor <acondor@google.com>
2020-06-23 15:30:22 -04:00

2139 lines
65 KiB
Go

/*
Copyright 2019 The Kubernetes 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 runtime
import (
"context"
"fmt"
"reflect"
"strings"
"testing"
"time"
"github.com/google/go-cmp/cmp"
"github.com/prometheus/client_golang/prometheus"
dto "github.com/prometheus/client_model/go"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
"k8s.io/kubernetes/pkg/scheduler/apis/config"
"k8s.io/kubernetes/pkg/scheduler/framework/v1alpha1"
"k8s.io/kubernetes/pkg/scheduler/metrics"
)
const (
queueSortPlugin = "no-op-queue-sort-plugin"
scoreWithNormalizePlugin1 = "score-with-normalize-plugin-1"
scoreWithNormalizePlugin2 = "score-with-normalize-plugin-2"
scorePlugin1 = "score-plugin-1"
pluginNotImplementingScore = "plugin-not-implementing-score"
preFilterPluginName = "prefilter-plugin"
preFilterWithExtensionsPluginName = "prefilter-with-extensions-plugin"
duplicatePluginName = "duplicate-plugin"
testPlugin = "test-plugin"
permitPlugin = "permit-plugin"
bindPlugin = "bind-plugin"
testProfileName = "test-profile"
)
// TestScoreWithNormalizePlugin implements ScoreWithNormalizePlugin interface.
// TestScorePlugin only implements ScorePlugin interface.
var _ v1alpha1.ScorePlugin = &TestScoreWithNormalizePlugin{}
var _ v1alpha1.ScorePlugin = &TestScorePlugin{}
func newScoreWithNormalizePlugin1(injArgs runtime.Object, f v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
var inj injectedResult
if err := DecodeInto(injArgs, &inj); err != nil {
return nil, err
}
return &TestScoreWithNormalizePlugin{scoreWithNormalizePlugin1, inj}, nil
}
func newScoreWithNormalizePlugin2(injArgs runtime.Object, f v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
var inj injectedResult
if err := DecodeInto(injArgs, &inj); err != nil {
return nil, err
}
return &TestScoreWithNormalizePlugin{scoreWithNormalizePlugin2, inj}, nil
}
func newScorePlugin1(injArgs runtime.Object, f v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
var inj injectedResult
if err := DecodeInto(injArgs, &inj); err != nil {
return nil, err
}
return &TestScorePlugin{scorePlugin1, inj}, nil
}
func newPluginNotImplementingScore(_ runtime.Object, _ v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
return &PluginNotImplementingScore{}, nil
}
type TestScoreWithNormalizePlugin struct {
name string
inj injectedResult
}
func (pl *TestScoreWithNormalizePlugin) Name() string {
return pl.name
}
func (pl *TestScoreWithNormalizePlugin) NormalizeScore(ctx context.Context, state *v1alpha1.CycleState, pod *v1.Pod, scores v1alpha1.NodeScoreList) *v1alpha1.Status {
return injectNormalizeRes(pl.inj, scores)
}
func (pl *TestScoreWithNormalizePlugin) Score(ctx context.Context, state *v1alpha1.CycleState, p *v1.Pod, nodeName string) (int64, *v1alpha1.Status) {
return setScoreRes(pl.inj)
}
func (pl *TestScoreWithNormalizePlugin) ScoreExtensions() v1alpha1.ScoreExtensions {
return pl
}
// TestScorePlugin only implements ScorePlugin interface.
type TestScorePlugin struct {
name string
inj injectedResult
}
func (pl *TestScorePlugin) Name() string {
return pl.name
}
func (pl *TestScorePlugin) Score(ctx context.Context, state *v1alpha1.CycleState, p *v1.Pod, nodeName string) (int64, *v1alpha1.Status) {
return setScoreRes(pl.inj)
}
func (pl *TestScorePlugin) ScoreExtensions() v1alpha1.ScoreExtensions {
return nil
}
// PluginNotImplementingScore doesn't implement the ScorePlugin interface.
type PluginNotImplementingScore struct{}
func (pl *PluginNotImplementingScore) Name() string {
return pluginNotImplementingScore
}
// TestPlugin implements all Plugin interfaces.
type TestPlugin struct {
name string
inj injectedResult
}
func (pl *TestPlugin) AddPod(ctx context.Context, state *v1alpha1.CycleState, podToSchedule *v1.Pod, podToAdd *v1.Pod, nodeInfo *v1alpha1.NodeInfo) *v1alpha1.Status {
return v1alpha1.NewStatus(v1alpha1.Code(pl.inj.PreFilterAddPodStatus), "injected status")
}
func (pl *TestPlugin) RemovePod(ctx context.Context, state *v1alpha1.CycleState, podToSchedule *v1.Pod, podToRemove *v1.Pod, nodeInfo *v1alpha1.NodeInfo) *v1alpha1.Status {
return v1alpha1.NewStatus(v1alpha1.Code(pl.inj.PreFilterRemovePodStatus), "injected status")
}
func (pl *TestPlugin) Name() string {
return pl.name
}
func (pl *TestPlugin) Less(*v1alpha1.QueuedPodInfo, *v1alpha1.QueuedPodInfo) bool {
return false
}
func (pl *TestPlugin) Score(ctx context.Context, state *v1alpha1.CycleState, p *v1.Pod, nodeName string) (int64, *v1alpha1.Status) {
return 0, v1alpha1.NewStatus(v1alpha1.Code(pl.inj.ScoreStatus), "injected status")
}
func (pl *TestPlugin) ScoreExtensions() v1alpha1.ScoreExtensions {
return nil
}
func (pl *TestPlugin) PreFilter(ctx context.Context, state *v1alpha1.CycleState, p *v1.Pod) *v1alpha1.Status {
return v1alpha1.NewStatus(v1alpha1.Code(pl.inj.PreFilterStatus), "injected status")
}
func (pl *TestPlugin) PreFilterExtensions() v1alpha1.PreFilterExtensions {
return pl
}
func (pl *TestPlugin) Filter(ctx context.Context, state *v1alpha1.CycleState, pod *v1.Pod, nodeInfo *v1alpha1.NodeInfo) *v1alpha1.Status {
return v1alpha1.NewStatus(v1alpha1.Code(pl.inj.FilterStatus), "injected filter status")
}
func (pl *TestPlugin) PostFilter(_ context.Context, _ *v1alpha1.CycleState, _ *v1.Pod, _ v1alpha1.NodeToStatusMap) (*v1alpha1.PostFilterResult, *v1alpha1.Status) {
return nil, v1alpha1.NewStatus(v1alpha1.Code(pl.inj.PostFilterStatus), "injected status")
}
func (pl *TestPlugin) PreScore(ctx context.Context, state *v1alpha1.CycleState, pod *v1.Pod, nodes []*v1.Node) *v1alpha1.Status {
return v1alpha1.NewStatus(v1alpha1.Code(pl.inj.PreScoreStatus), "injected status")
}
func (pl *TestPlugin) Reserve(ctx context.Context, state *v1alpha1.CycleState, p *v1.Pod, nodeName string) *v1alpha1.Status {
return v1alpha1.NewStatus(v1alpha1.Code(pl.inj.ReserveStatus), "injected status")
}
func (pl *TestPlugin) PreBind(ctx context.Context, state *v1alpha1.CycleState, p *v1.Pod, nodeName string) *v1alpha1.Status {
return v1alpha1.NewStatus(v1alpha1.Code(pl.inj.PreBindStatus), "injected status")
}
func (pl *TestPlugin) PostBind(ctx context.Context, state *v1alpha1.CycleState, p *v1.Pod, nodeName string) {
}
func (pl *TestPlugin) Unreserve(ctx context.Context, state *v1alpha1.CycleState, p *v1.Pod, nodeName string) {
}
func (pl *TestPlugin) Permit(ctx context.Context, state *v1alpha1.CycleState, p *v1.Pod, nodeName string) (*v1alpha1.Status, time.Duration) {
return v1alpha1.NewStatus(v1alpha1.Code(pl.inj.PermitStatus), "injected status"), time.Duration(0)
}
func (pl *TestPlugin) Bind(ctx context.Context, state *v1alpha1.CycleState, p *v1.Pod, nodeName string) *v1alpha1.Status {
return v1alpha1.NewStatus(v1alpha1.Code(pl.inj.BindStatus), "injected status")
}
// TestPreFilterPlugin only implements PreFilterPlugin interface.
type TestPreFilterPlugin struct {
PreFilterCalled int
}
func (pl *TestPreFilterPlugin) Name() string {
return preFilterPluginName
}
func (pl *TestPreFilterPlugin) PreFilter(ctx context.Context, state *v1alpha1.CycleState, p *v1.Pod) *v1alpha1.Status {
pl.PreFilterCalled++
return nil
}
func (pl *TestPreFilterPlugin) PreFilterExtensions() v1alpha1.PreFilterExtensions {
return nil
}
// TestPreFilterWithExtensionsPlugin implements Add/Remove interfaces.
type TestPreFilterWithExtensionsPlugin struct {
PreFilterCalled int
AddCalled int
RemoveCalled int
}
func (pl *TestPreFilterWithExtensionsPlugin) Name() string {
return preFilterWithExtensionsPluginName
}
func (pl *TestPreFilterWithExtensionsPlugin) PreFilter(ctx context.Context, state *v1alpha1.CycleState, p *v1.Pod) *v1alpha1.Status {
pl.PreFilterCalled++
return nil
}
func (pl *TestPreFilterWithExtensionsPlugin) AddPod(ctx context.Context, state *v1alpha1.CycleState, podToSchedule *v1.Pod,
podToAdd *v1.Pod, nodeInfo *v1alpha1.NodeInfo) *v1alpha1.Status {
pl.AddCalled++
return nil
}
func (pl *TestPreFilterWithExtensionsPlugin) RemovePod(ctx context.Context, state *v1alpha1.CycleState, podToSchedule *v1.Pod,
podToRemove *v1.Pod, nodeInfo *v1alpha1.NodeInfo) *v1alpha1.Status {
pl.RemoveCalled++
return nil
}
func (pl *TestPreFilterWithExtensionsPlugin) PreFilterExtensions() v1alpha1.PreFilterExtensions {
return pl
}
type TestDuplicatePlugin struct {
}
func (dp *TestDuplicatePlugin) Name() string {
return duplicatePluginName
}
func (dp *TestDuplicatePlugin) PreFilter(ctx context.Context, state *v1alpha1.CycleState, p *v1.Pod) *v1alpha1.Status {
return nil
}
func (dp *TestDuplicatePlugin) PreFilterExtensions() v1alpha1.PreFilterExtensions {
return nil
}
var _ v1alpha1.PreFilterPlugin = &TestDuplicatePlugin{}
func newDuplicatePlugin(_ runtime.Object, _ v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
return &TestDuplicatePlugin{}, nil
}
// TestPermitPlugin only implements PermitPlugin interface.
type TestPermitPlugin struct {
PreFilterCalled int
}
func (pp *TestPermitPlugin) Name() string {
return permitPlugin
}
func (pp *TestPermitPlugin) Permit(ctx context.Context, state *v1alpha1.CycleState, p *v1.Pod, nodeName string) (*v1alpha1.Status, time.Duration) {
return v1alpha1.NewStatus(v1alpha1.Wait, ""), time.Duration(10 * time.Second)
}
var _ v1alpha1.QueueSortPlugin = &TestQueueSortPlugin{}
func newQueueSortPlugin(_ runtime.Object, _ v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
return &TestQueueSortPlugin{}, nil
}
// TestQueueSortPlugin is a no-op implementation for QueueSort extension point.
type TestQueueSortPlugin struct{}
func (pl *TestQueueSortPlugin) Name() string {
return queueSortPlugin
}
func (pl *TestQueueSortPlugin) Less(_, _ *v1alpha1.QueuedPodInfo) bool {
return false
}
var _ v1alpha1.BindPlugin = &TestBindPlugin{}
func newBindPlugin(_ runtime.Object, _ v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
return &TestBindPlugin{}, nil
}
// TestBindPlugin is a no-op implementation for Bind extension point.
type TestBindPlugin struct{}
func (t TestBindPlugin) Name() string {
return bindPlugin
}
func (t TestBindPlugin) Bind(ctx context.Context, state *v1alpha1.CycleState, p *v1.Pod, nodeName string) *v1alpha1.Status {
return nil
}
var registry = func() Registry {
r := make(Registry)
r.Register(scoreWithNormalizePlugin1, newScoreWithNormalizePlugin1)
r.Register(scoreWithNormalizePlugin2, newScoreWithNormalizePlugin2)
r.Register(scorePlugin1, newScorePlugin1)
r.Register(pluginNotImplementingScore, newPluginNotImplementingScore)
r.Register(duplicatePluginName, newDuplicatePlugin)
return r
}()
var defaultWeights = map[string]int32{
scoreWithNormalizePlugin1: 1,
scoreWithNormalizePlugin2: 2,
scorePlugin1: 1,
}
var emptyArgs = make([]config.PluginConfig, 0)
var state = &v1alpha1.CycleState{}
// Pod is only used for logging errors.
var pod = &v1.Pod{}
var nodes = []*v1.Node{
{ObjectMeta: metav1.ObjectMeta{Name: "node1"}},
{ObjectMeta: metav1.ObjectMeta{Name: "node2"}},
}
func newFrameworkWithQueueSortAndBind(r Registry, pl *config.Plugins, plc []config.PluginConfig, opts ...Option) (v1alpha1.Framework, error) {
if _, ok := r[queueSortPlugin]; !ok {
r[queueSortPlugin] = newQueueSortPlugin
}
if _, ok := r[bindPlugin]; !ok {
r[bindPlugin] = newBindPlugin
}
plugins := &config.Plugins{}
plugins.Append(pl)
if plugins.QueueSort == nil || len(plugins.QueueSort.Enabled) == 0 {
plugins.Append(&config.Plugins{
QueueSort: &config.PluginSet{
Enabled: []config.Plugin{{Name: queueSortPlugin}},
},
})
}
if plugins.Bind == nil || len(plugins.Bind.Enabled) == 0 {
plugins.Append(&config.Plugins{
Bind: &config.PluginSet{
Enabled: []config.Plugin{{Name: bindPlugin}},
},
})
}
return NewFramework(r, plugins, plc, opts...)
}
func TestInitFrameworkWithScorePlugins(t *testing.T) {
tests := []struct {
name string
plugins *config.Plugins
// If initErr is true, we expect framework initialization to fail.
initErr bool
}{
{
name: "enabled Score plugin doesn't exist in registry",
plugins: buildScoreConfigDefaultWeights("notExist"),
initErr: true,
},
{
name: "enabled Score plugin doesn't extend the ScorePlugin interface",
plugins: buildScoreConfigDefaultWeights(pluginNotImplementingScore),
initErr: true,
},
{
name: "Score plugins are nil",
plugins: &config.Plugins{Score: nil},
},
{
name: "enabled Score plugin list is empty",
plugins: buildScoreConfigDefaultWeights(),
},
{
name: "enabled plugin only implements ScorePlugin interface",
plugins: buildScoreConfigDefaultWeights(scorePlugin1),
},
{
name: "enabled plugin implements ScoreWithNormalizePlugin interface",
plugins: buildScoreConfigDefaultWeights(scoreWithNormalizePlugin1),
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
_, err := newFrameworkWithQueueSortAndBind(registry, tt.plugins, emptyArgs)
if tt.initErr && err == nil {
t.Fatal("Framework initialization should fail")
}
if !tt.initErr && err != nil {
t.Fatalf("Failed to create framework for testing: %v", err)
}
})
}
}
func TestNewFrameworkErrors(t *testing.T) {
tests := []struct {
name string
plugins *config.Plugins
pluginCfg []config.PluginConfig
wantErr string
}{
{
name: "duplicate plugin name",
plugins: &config.Plugins{
PreFilter: &config.PluginSet{
Enabled: []config.Plugin{
{Name: duplicatePluginName, Weight: 1},
{Name: duplicatePluginName, Weight: 1},
},
},
},
pluginCfg: []config.PluginConfig{
{Name: duplicatePluginName},
},
wantErr: "already registered",
},
{
name: "duplicate plugin config",
plugins: &config.Plugins{
PreFilter: &config.PluginSet{
Enabled: []config.Plugin{
{Name: duplicatePluginName, Weight: 1},
},
},
},
pluginCfg: []config.PluginConfig{
{Name: duplicatePluginName},
{Name: duplicatePluginName},
},
wantErr: "repeated config for plugin",
},
}
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
_, err := NewFramework(registry, tc.plugins, tc.pluginCfg)
if err == nil || !strings.Contains(err.Error(), tc.wantErr) {
t.Errorf("Unexpected error, got %v, expect: %s", err, tc.wantErr)
}
})
}
}
func recordingPluginFactory(name string, result map[string]runtime.Object) PluginFactory {
return func(args runtime.Object, f v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
result[name] = args
return &TestPlugin{
name: name,
}, nil
}
}
func TestNewFrameworkPluginDefaults(t *testing.T) {
// In-tree plugins that use args.
pluginsWithArgs := []string{
"InterPodAffinity",
"NodeLabel",
"NodeResourcesFit",
"NodeResourcesLeastAllocated",
"NodeResourcesMostAllocated",
"PodTopologySpread",
"RequestedToCapacityRatio",
"VolumeBinding",
}
plugins := config.Plugins{
Filter: &config.PluginSet{},
}
// Use all plugins in Filter.
// NOTE: This does not mean those plugins implemented `Filter` interfaces.
// `TestPlugin` is created in this test to fake the behavior for test purpose.
for _, name := range pluginsWithArgs {
plugins.Filter.Enabled = append(plugins.Filter.Enabled, config.Plugin{Name: name})
}
// Set required extension points.
onePlugin := &config.PluginSet{
Enabled: []config.Plugin{{Name: pluginsWithArgs[0]}},
}
plugins.QueueSort = onePlugin
plugins.Bind = onePlugin
tests := []struct {
name string
pluginCfg []config.PluginConfig
wantCfg map[string]runtime.Object
}{
{
name: "empty plugin config",
wantCfg: map[string]runtime.Object{
"InterPodAffinity": &config.InterPodAffinityArgs{
HardPodAffinityWeight: 1,
},
"NodeLabel": &config.NodeLabelArgs{},
"NodeResourcesFit": &config.NodeResourcesFitArgs{},
"NodeResourcesLeastAllocated": &config.NodeResourcesLeastAllocatedArgs{
Resources: []config.ResourceSpec{{Name: "cpu", Weight: 1}, {Name: "memory", Weight: 1}},
},
"NodeResourcesMostAllocated": &config.NodeResourcesMostAllocatedArgs{
Resources: []config.ResourceSpec{{Name: "cpu", Weight: 1}, {Name: "memory", Weight: 1}},
},
"RequestedToCapacityRatio": &config.RequestedToCapacityRatioArgs{
Resources: []config.ResourceSpec{{Name: "cpu", Weight: 1}, {Name: "memory", Weight: 1}},
},
"PodTopologySpread": &config.PodTopologySpreadArgs{},
"VolumeBinding": &config.VolumeBindingArgs{
BindTimeoutSeconds: 600,
},
},
},
{
name: "some overridden plugin config",
pluginCfg: []config.PluginConfig{
{
Name: "InterPodAffinity",
Args: &config.InterPodAffinityArgs{
HardPodAffinityWeight: 3,
},
},
{
Name: "NodeResourcesFit",
Args: &config.NodeResourcesFitArgs{
IgnoredResources: []string{"example.com/foo"},
},
},
{
Name: "NodeResourcesLeastAllocated",
Args: &config.NodeResourcesLeastAllocatedArgs{
Resources: []config.ResourceSpec{{Name: "resource", Weight: 4}},
},
},
{
Name: "NodeResourcesMostAllocated",
Args: &config.NodeResourcesMostAllocatedArgs{
Resources: []config.ResourceSpec{{Name: "resource", Weight: 3}},
},
},
{
Name: "RequestedToCapacityRatio",
Args: &config.RequestedToCapacityRatioArgs{
Resources: []config.ResourceSpec{{Name: "resource", Weight: 2}},
},
},
{
Name: "VolumeBinding",
Args: &config.VolumeBindingArgs{
BindTimeoutSeconds: 300,
},
},
},
wantCfg: map[string]runtime.Object{
"InterPodAffinity": &config.InterPodAffinityArgs{
HardPodAffinityWeight: 3,
},
"NodeLabel": &config.NodeLabelArgs{},
"NodeResourcesFit": &config.NodeResourcesFitArgs{
IgnoredResources: []string{"example.com/foo"},
},
"NodeResourcesLeastAllocated": &config.NodeResourcesLeastAllocatedArgs{
Resources: []config.ResourceSpec{{Name: "resource", Weight: 4}},
},
"NodeResourcesMostAllocated": &config.NodeResourcesMostAllocatedArgs{
Resources: []config.ResourceSpec{{Name: "resource", Weight: 3}},
},
"PodTopologySpread": &config.PodTopologySpreadArgs{},
"RequestedToCapacityRatio": &config.RequestedToCapacityRatioArgs{
Resources: []config.ResourceSpec{{Name: "resource", Weight: 2}},
},
"VolumeBinding": &config.VolumeBindingArgs{
BindTimeoutSeconds: 300,
},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
// result will hold plugin args passed to factories.
result := make(map[string]runtime.Object)
registry := make(Registry, len(pluginsWithArgs))
for _, name := range pluginsWithArgs {
registry[name] = recordingPluginFactory(name, result)
}
_, err := NewFramework(registry, &plugins, tt.pluginCfg)
if err != nil {
t.Fatal(err)
}
if diff := cmp.Diff(tt.wantCfg, result); diff != "" {
t.Errorf("unexpected plugin args (-want,+got):\n%s", diff)
}
})
}
}
func TestRunScorePlugins(t *testing.T) {
tests := []struct {
name string
registry Registry
plugins *config.Plugins
pluginConfigs []config.PluginConfig
want v1alpha1.PluginToNodeScores
// If err is true, we expect RunScorePlugin to fail.
err bool
}{
{
name: "no Score plugins",
plugins: buildScoreConfigDefaultWeights(),
want: v1alpha1.PluginToNodeScores{},
},
{
name: "single Score plugin",
plugins: buildScoreConfigDefaultWeights(scorePlugin1),
pluginConfigs: []config.PluginConfig{
{
Name: scorePlugin1,
Args: &runtime.Unknown{
Raw: []byte(`{ "scoreRes": 1 }`),
},
},
},
// scorePlugin1 Score returns 1, weight=1, so want=1.
want: v1alpha1.PluginToNodeScores{
scorePlugin1: {{Name: "node1", Score: 1}, {Name: "node2", Score: 1}},
},
},
{
name: "single ScoreWithNormalize plugin",
//registry: registry,
plugins: buildScoreConfigDefaultWeights(scoreWithNormalizePlugin1),
pluginConfigs: []config.PluginConfig{
{
Name: scoreWithNormalizePlugin1,
Args: &runtime.Unknown{
Raw: []byte(`{ "scoreRes": 10, "normalizeRes": 5 }`),
},
},
},
// scoreWithNormalizePlugin1 Score returns 10, but NormalizeScore overrides to 5, weight=1, so want=5
want: v1alpha1.PluginToNodeScores{
scoreWithNormalizePlugin1: {{Name: "node1", Score: 5}, {Name: "node2", Score: 5}},
},
},
{
name: "2 Score plugins, 2 NormalizeScore plugins",
plugins: buildScoreConfigDefaultWeights(scorePlugin1, scoreWithNormalizePlugin1, scoreWithNormalizePlugin2),
pluginConfigs: []config.PluginConfig{
{
Name: scorePlugin1,
Args: &runtime.Unknown{
Raw: []byte(`{ "scoreRes": 1 }`),
},
},
{
Name: scoreWithNormalizePlugin1,
Args: &runtime.Unknown{
Raw: []byte(`{ "scoreRes": 3, "normalizeRes": 4}`),
},
},
{
Name: scoreWithNormalizePlugin2,
Args: &runtime.Unknown{
Raw: []byte(`{ "scoreRes": 4, "normalizeRes": 5}`),
},
},
},
// scorePlugin1 Score returns 1, weight =1, so want=1.
// scoreWithNormalizePlugin1 Score returns 3, but NormalizeScore overrides to 4, weight=1, so want=4.
// scoreWithNormalizePlugin2 Score returns 4, but NormalizeScore overrides to 5, weight=2, so want=10.
want: v1alpha1.PluginToNodeScores{
scorePlugin1: {{Name: "node1", Score: 1}, {Name: "node2", Score: 1}},
scoreWithNormalizePlugin1: {{Name: "node1", Score: 4}, {Name: "node2", Score: 4}},
scoreWithNormalizePlugin2: {{Name: "node1", Score: 10}, {Name: "node2", Score: 10}},
},
},
{
name: "score fails",
pluginConfigs: []config.PluginConfig{
{
Name: scoreWithNormalizePlugin1,
Args: &runtime.Unknown{
Raw: []byte(`{ "scoreStatus": 1 }`),
},
},
},
plugins: buildScoreConfigDefaultWeights(scorePlugin1, scoreWithNormalizePlugin1),
err: true,
},
{
name: "normalize fails",
pluginConfigs: []config.PluginConfig{
{
Name: scoreWithNormalizePlugin1,
Args: &runtime.Unknown{
Raw: []byte(`{ "normalizeStatus": 1 }`),
},
},
},
plugins: buildScoreConfigDefaultWeights(scorePlugin1, scoreWithNormalizePlugin1),
err: true,
},
{
name: "Score plugin return score greater than MaxNodeScore",
plugins: buildScoreConfigDefaultWeights(scorePlugin1),
pluginConfigs: []config.PluginConfig{
{
Name: scorePlugin1,
Args: &runtime.Unknown{
Raw: []byte(fmt.Sprintf(`{ "scoreRes": %d }`, v1alpha1.MaxNodeScore+1)),
},
},
},
err: true,
},
{
name: "Score plugin return score less than MinNodeScore",
plugins: buildScoreConfigDefaultWeights(scorePlugin1),
pluginConfigs: []config.PluginConfig{
{
Name: scorePlugin1,
Args: &runtime.Unknown{
Raw: []byte(fmt.Sprintf(`{ "scoreRes": %d }`, v1alpha1.MinNodeScore-1)),
},
},
},
err: true,
},
{
name: "ScoreWithNormalize plugin return score greater than MaxNodeScore",
plugins: buildScoreConfigDefaultWeights(scoreWithNormalizePlugin1),
pluginConfigs: []config.PluginConfig{
{
Name: scoreWithNormalizePlugin1,
Args: &runtime.Unknown{
Raw: []byte(fmt.Sprintf(`{ "normalizeRes": %d }`, v1alpha1.MaxNodeScore+1)),
},
},
},
err: true,
},
{
name: "ScoreWithNormalize plugin return score less than MinNodeScore",
plugins: buildScoreConfigDefaultWeights(scoreWithNormalizePlugin1),
pluginConfigs: []config.PluginConfig{
{
Name: scoreWithNormalizePlugin1,
Args: &runtime.Unknown{
Raw: []byte(fmt.Sprintf(`{ "normalizeRes": %d }`, v1alpha1.MinNodeScore-1)),
},
},
},
err: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
// Inject the results via Args in PluginConfig.
f, err := newFrameworkWithQueueSortAndBind(registry, tt.plugins, tt.pluginConfigs)
if err != nil {
t.Fatalf("Failed to create framework for testing: %v", err)
}
res, status := f.RunScorePlugins(context.Background(), state, pod, nodes)
if tt.err {
if status.IsSuccess() {
t.Errorf("Expected status to be non-success. got: %v", status.Code().String())
}
return
}
if !status.IsSuccess() {
t.Errorf("Expected status to be success.")
}
if !reflect.DeepEqual(res, tt.want) {
t.Errorf("Score map after RunScorePlugin: %+v, want: %+v.", res, tt.want)
}
})
}
}
func TestPreFilterPlugins(t *testing.T) {
preFilter1 := &TestPreFilterPlugin{}
preFilter2 := &TestPreFilterWithExtensionsPlugin{}
r := make(Registry)
r.Register(preFilterPluginName,
func(_ runtime.Object, fh v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
return preFilter1, nil
})
r.Register(preFilterWithExtensionsPluginName,
func(_ runtime.Object, fh v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
return preFilter2, nil
})
plugins := &config.Plugins{PreFilter: &config.PluginSet{Enabled: []config.Plugin{{Name: preFilterWithExtensionsPluginName}, {Name: preFilterPluginName}}}}
t.Run("TestPreFilterPlugin", func(t *testing.T) {
f, err := newFrameworkWithQueueSortAndBind(r, plugins, emptyArgs)
if err != nil {
t.Fatalf("Failed to create framework for testing: %v", err)
}
f.RunPreFilterPlugins(context.Background(), nil, nil)
f.RunPreFilterExtensionAddPod(context.Background(), nil, nil, nil, nil)
f.RunPreFilterExtensionRemovePod(context.Background(), nil, nil, nil, nil)
if preFilter1.PreFilterCalled != 1 {
t.Errorf("preFilter1 called %v, expected: 1", preFilter1.PreFilterCalled)
}
if preFilter2.PreFilterCalled != 1 {
t.Errorf("preFilter2 called %v, expected: 1", preFilter2.PreFilterCalled)
}
if preFilter2.AddCalled != 1 {
t.Errorf("AddPod called %v, expected: 1", preFilter2.AddCalled)
}
if preFilter2.RemoveCalled != 1 {
t.Errorf("AddPod called %v, expected: 1", preFilter2.RemoveCalled)
}
})
}
func TestFilterPlugins(t *testing.T) {
tests := []struct {
name string
plugins []*TestPlugin
wantStatus *v1alpha1.Status
wantStatusMap v1alpha1.PluginToStatus
runAllFilters bool
}{
{
name: "SuccessFilter",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{FilterStatus: int(v1alpha1.Success)},
},
},
wantStatus: nil,
wantStatusMap: v1alpha1.PluginToStatus{},
},
{
name: "ErrorFilter",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{FilterStatus: int(v1alpha1.Error)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `running "TestPlugin" filter plugin for pod "": injected filter status`),
wantStatusMap: v1alpha1.PluginToStatus{"TestPlugin": v1alpha1.NewStatus(v1alpha1.Error, `running "TestPlugin" filter plugin for pod "": injected filter status`)},
},
{
name: "UnschedulableFilter",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{FilterStatus: int(v1alpha1.Unschedulable)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Unschedulable, "injected filter status"),
wantStatusMap: v1alpha1.PluginToStatus{"TestPlugin": v1alpha1.NewStatus(v1alpha1.Unschedulable, "injected filter status")},
},
{
name: "UnschedulableAndUnresolvableFilter",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{
FilterStatus: int(v1alpha1.UnschedulableAndUnresolvable)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.UnschedulableAndUnresolvable, "injected filter status"),
wantStatusMap: v1alpha1.PluginToStatus{"TestPlugin": v1alpha1.NewStatus(v1alpha1.UnschedulableAndUnresolvable, "injected filter status")},
},
// followings tests cover multiple-plugins scenarios
{
name: "ErrorAndErrorFilters",
plugins: []*TestPlugin{
{
name: "TestPlugin1",
inj: injectedResult{FilterStatus: int(v1alpha1.Error)},
},
{
name: "TestPlugin2",
inj: injectedResult{FilterStatus: int(v1alpha1.Error)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `running "TestPlugin1" filter plugin for pod "": injected filter status`),
wantStatusMap: v1alpha1.PluginToStatus{"TestPlugin1": v1alpha1.NewStatus(v1alpha1.Error, `running "TestPlugin1" filter plugin for pod "": injected filter status`)},
},
{
name: "SuccessAndSuccessFilters",
plugins: []*TestPlugin{
{
name: "TestPlugin1",
inj: injectedResult{FilterStatus: int(v1alpha1.Success)},
},
{
name: "TestPlugin2",
inj: injectedResult{FilterStatus: int(v1alpha1.Success)},
},
},
wantStatus: nil,
wantStatusMap: v1alpha1.PluginToStatus{},
},
{
name: "ErrorAndSuccessFilters",
plugins: []*TestPlugin{
{
name: "TestPlugin1",
inj: injectedResult{FilterStatus: int(v1alpha1.Error)},
},
{
name: "TestPlugin2",
inj: injectedResult{FilterStatus: int(v1alpha1.Success)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `running "TestPlugin1" filter plugin for pod "": injected filter status`),
wantStatusMap: v1alpha1.PluginToStatus{"TestPlugin1": v1alpha1.NewStatus(v1alpha1.Error, `running "TestPlugin1" filter plugin for pod "": injected filter status`)},
},
{
name: "SuccessAndErrorFilters",
plugins: []*TestPlugin{
{
name: "TestPlugin1",
inj: injectedResult{FilterStatus: int(v1alpha1.Success)},
},
{
name: "TestPlugin2",
inj: injectedResult{FilterStatus: int(v1alpha1.Error)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `running "TestPlugin2" filter plugin for pod "": injected filter status`),
wantStatusMap: v1alpha1.PluginToStatus{"TestPlugin2": v1alpha1.NewStatus(v1alpha1.Error, `running "TestPlugin2" filter plugin for pod "": injected filter status`)},
},
{
name: "SuccessAndUnschedulableFilters",
plugins: []*TestPlugin{
{
name: "TestPlugin1",
inj: injectedResult{FilterStatus: int(v1alpha1.Success)},
},
{
name: "TestPlugin2",
inj: injectedResult{FilterStatus: int(v1alpha1.Unschedulable)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Unschedulable, "injected filter status"),
wantStatusMap: v1alpha1.PluginToStatus{"TestPlugin2": v1alpha1.NewStatus(v1alpha1.Unschedulable, "injected filter status")},
},
{
name: "SuccessFilterWithRunAllFilters",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{FilterStatus: int(v1alpha1.Success)},
},
},
runAllFilters: true,
wantStatus: nil,
wantStatusMap: v1alpha1.PluginToStatus{},
},
{
name: "ErrorAndErrorFilters",
plugins: []*TestPlugin{
{
name: "TestPlugin1",
inj: injectedResult{FilterStatus: int(v1alpha1.Error)},
},
{
name: "TestPlugin2",
inj: injectedResult{FilterStatus: int(v1alpha1.Error)},
},
},
runAllFilters: true,
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `running "TestPlugin1" filter plugin for pod "": injected filter status`),
wantStatusMap: v1alpha1.PluginToStatus{"TestPlugin1": v1alpha1.NewStatus(v1alpha1.Error, `running "TestPlugin1" filter plugin for pod "": injected filter status`)},
},
{
name: "ErrorAndErrorFilters",
plugins: []*TestPlugin{
{
name: "TestPlugin1",
inj: injectedResult{FilterStatus: int(v1alpha1.UnschedulableAndUnresolvable)},
},
{
name: "TestPlugin2",
inj: injectedResult{FilterStatus: int(v1alpha1.Unschedulable)},
},
},
runAllFilters: true,
wantStatus: v1alpha1.NewStatus(v1alpha1.UnschedulableAndUnresolvable, "injected filter status", "injected filter status"),
wantStatusMap: v1alpha1.PluginToStatus{
"TestPlugin1": v1alpha1.NewStatus(v1alpha1.UnschedulableAndUnresolvable, "injected filter status"),
"TestPlugin2": v1alpha1.NewStatus(v1alpha1.Unschedulable, "injected filter status"),
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
registry := Registry{}
cfgPls := &config.Plugins{Filter: &config.PluginSet{}}
for _, pl := range tt.plugins {
// register all plugins
tmpPl := pl
if err := registry.Register(pl.name,
func(_ runtime.Object, _ v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
return tmpPl, nil
}); err != nil {
t.Fatalf("fail to register filter plugin (%s)", pl.name)
}
// append plugins to filter pluginset
cfgPls.Filter.Enabled = append(
cfgPls.Filter.Enabled,
config.Plugin{Name: pl.name})
}
f, err := newFrameworkWithQueueSortAndBind(registry, cfgPls, emptyArgs, WithRunAllFilters(tt.runAllFilters))
if err != nil {
t.Fatalf("fail to create framework: %s", err)
}
gotStatusMap := f.RunFilterPlugins(context.TODO(), nil, pod, nil)
gotStatus := gotStatusMap.Merge()
if !reflect.DeepEqual(gotStatus, tt.wantStatus) {
t.Errorf("wrong status code. got: %v, want:%v", gotStatus, tt.wantStatus)
}
if !reflect.DeepEqual(gotStatusMap, tt.wantStatusMap) {
t.Errorf("wrong status map. got: %+v, want: %+v", gotStatusMap, tt.wantStatusMap)
}
})
}
}
func TestPostFilterPlugins(t *testing.T) {
tests := []struct {
name string
plugins []*TestPlugin
wantStatus *v1alpha1.Status
}{
{
name: "a single plugin makes a Pod schedulable",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{PostFilterStatus: int(v1alpha1.Success)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Success, "injected status"),
},
{
name: "plugin1 failed to make a Pod schedulable, followed by plugin2 which makes the Pod schedulable",
plugins: []*TestPlugin{
{
name: "TestPlugin1",
inj: injectedResult{PostFilterStatus: int(v1alpha1.Unschedulable)},
},
{
name: "TestPlugin2",
inj: injectedResult{PostFilterStatus: int(v1alpha1.Success)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Success, "injected status"),
},
{
name: "plugin1 makes a Pod schedulable, followed by plugin2 which cannot make the Pod schedulable",
plugins: []*TestPlugin{
{
name: "TestPlugin1",
inj: injectedResult{PostFilterStatus: int(v1alpha1.Success)},
},
{
name: "TestPlugin2",
inj: injectedResult{PostFilterStatus: int(v1alpha1.Unschedulable)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Success, "injected status"),
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
registry := Registry{}
cfgPls := &config.Plugins{PostFilter: &config.PluginSet{}}
for _, pl := range tt.plugins {
// register all plugins
tmpPl := pl
if err := registry.Register(pl.name,
func(_ runtime.Object, _ v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
return tmpPl, nil
}); err != nil {
t.Fatalf("fail to register postFilter plugin (%s)", pl.name)
}
// append plugins to filter pluginset
cfgPls.PostFilter.Enabled = append(
cfgPls.PostFilter.Enabled,
config.Plugin{Name: pl.name},
)
}
f, err := newFrameworkWithQueueSortAndBind(registry, cfgPls, emptyArgs)
if err != nil {
t.Fatalf("fail to create framework: %s", err)
}
_, gotStatus := f.RunPostFilterPlugins(context.TODO(), nil, pod, nil)
if !reflect.DeepEqual(gotStatus, tt.wantStatus) {
t.Errorf("Unexpected status. got: %v, want: %v", gotStatus, tt.wantStatus)
}
})
}
}
func TestPreBindPlugins(t *testing.T) {
tests := []struct {
name string
plugins []*TestPlugin
wantStatus *v1alpha1.Status
}{
{
name: "NoPreBindPlugin",
plugins: []*TestPlugin{},
wantStatus: nil,
},
{
name: "SuccessPreBindPlugins",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{PreBindStatus: int(v1alpha1.Success)},
},
},
wantStatus: nil,
},
{
name: "UnshedulablePreBindPlugin",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{PreBindStatus: int(v1alpha1.Unschedulable)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `error while running "TestPlugin" prebind plugin for pod "": injected status`),
},
{
name: "ErrorPreBindPlugin",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{PreBindStatus: int(v1alpha1.Error)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `error while running "TestPlugin" prebind plugin for pod "": injected status`),
},
{
name: "UnschedulablePreBindPlugin",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{PreBindStatus: int(v1alpha1.UnschedulableAndUnresolvable)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `error while running "TestPlugin" prebind plugin for pod "": injected status`),
},
{
name: "SuccessErrorPreBindPlugins",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{PreBindStatus: int(v1alpha1.Success)},
},
{
name: "TestPlugin 1",
inj: injectedResult{PreBindStatus: int(v1alpha1.Error)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `error while running "TestPlugin 1" prebind plugin for pod "": injected status`),
},
{
name: "ErrorSuccessPreBindPlugin",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{PreBindStatus: int(v1alpha1.Error)},
},
{
name: "TestPlugin 1",
inj: injectedResult{PreBindStatus: int(v1alpha1.Success)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `error while running "TestPlugin" prebind plugin for pod "": injected status`),
},
{
name: "SuccessSuccessPreBindPlugin",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{PreBindStatus: int(v1alpha1.Success)},
},
{
name: "TestPlugin 1",
inj: injectedResult{PreBindStatus: int(v1alpha1.Success)},
},
},
wantStatus: nil,
},
{
name: "ErrorAndErrorPlugins",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{PreBindStatus: int(v1alpha1.Error)},
},
{
name: "TestPlugin 1",
inj: injectedResult{PreBindStatus: int(v1alpha1.Error)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `error while running "TestPlugin" prebind plugin for pod "": injected status`),
},
{
name: "UnschedulableAndSuccessPreBindPlugin",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{PreBindStatus: int(v1alpha1.Unschedulable)},
},
{
name: "TestPlugin 1",
inj: injectedResult{PreBindStatus: int(v1alpha1.Success)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `error while running "TestPlugin" prebind plugin for pod "": injected status`),
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
registry := Registry{}
configPlugins := &config.Plugins{PreBind: &config.PluginSet{}}
for _, pl := range tt.plugins {
tmpPl := pl
if err := registry.Register(pl.name, func(_ runtime.Object, _ v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
return tmpPl, nil
}); err != nil {
t.Fatalf("Unable to register pre bind plugins: %s", pl.name)
}
configPlugins.PreBind.Enabled = append(
configPlugins.PreBind.Enabled,
config.Plugin{Name: pl.name},
)
}
f, err := newFrameworkWithQueueSortAndBind(registry, configPlugins, emptyArgs)
if err != nil {
t.Fatalf("fail to create framework: %s", err)
}
status := f.RunPreBindPlugins(context.TODO(), nil, pod, "")
if !reflect.DeepEqual(status, tt.wantStatus) {
t.Errorf("wrong status code. got %v, want %v", status, tt.wantStatus)
}
})
}
}
func TestReservePlugins(t *testing.T) {
tests := []struct {
name string
plugins []*TestPlugin
wantStatus *v1alpha1.Status
}{
{
name: "NoReservePlugin",
plugins: []*TestPlugin{},
wantStatus: nil,
},
{
name: "SuccessReservePlugins",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{ReserveStatus: int(v1alpha1.Success)},
},
},
wantStatus: nil,
},
{
name: "UnshedulableReservePlugin",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{ReserveStatus: int(v1alpha1.Unschedulable)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `error while running "TestPlugin" reserve plugin for pod "": injected status`),
},
{
name: "ErrorReservePlugin",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{ReserveStatus: int(v1alpha1.Error)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `error while running "TestPlugin" reserve plugin for pod "": injected status`),
},
{
name: "UnschedulableReservePlugin",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{ReserveStatus: int(v1alpha1.UnschedulableAndUnresolvable)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `error while running "TestPlugin" reserve plugin for pod "": injected status`),
},
{
name: "SuccessSuccessReservePlugins",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{ReserveStatus: int(v1alpha1.Success)},
},
{
name: "TestPlugin 1",
inj: injectedResult{ReserveStatus: int(v1alpha1.Success)},
},
},
wantStatus: nil,
},
{
name: "ErrorErrorReservePlugins",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{ReserveStatus: int(v1alpha1.Error)},
},
{
name: "TestPlugin 1",
inj: injectedResult{ReserveStatus: int(v1alpha1.Error)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `error while running "TestPlugin" reserve plugin for pod "": injected status`),
},
{
name: "SuccessErrorReservePlugins",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{ReserveStatus: int(v1alpha1.Success)},
},
{
name: "TestPlugin 1",
inj: injectedResult{ReserveStatus: int(v1alpha1.Error)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `error while running "TestPlugin 1" reserve plugin for pod "": injected status`),
},
{
name: "ErrorSuccessReservePlugin",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{ReserveStatus: int(v1alpha1.Error)},
},
{
name: "TestPlugin 1",
inj: injectedResult{ReserveStatus: int(v1alpha1.Success)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `error while running "TestPlugin" reserve plugin for pod "": injected status`),
},
{
name: "UnschedulableAndSuccessReservePlugin",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{ReserveStatus: int(v1alpha1.Unschedulable)},
},
{
name: "TestPlugin 1",
inj: injectedResult{ReserveStatus: int(v1alpha1.Success)},
},
},
wantStatus: v1alpha1.NewStatus(v1alpha1.Error, `error while running "TestPlugin" reserve plugin for pod "": injected status`),
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
registry := Registry{}
configPlugins := &config.Plugins{Reserve: &config.PluginSet{}}
for _, pl := range tt.plugins {
tmpPl := pl
if err := registry.Register(pl.name, func(_ runtime.Object, _ v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
return tmpPl, nil
}); err != nil {
t.Fatalf("Unable to register pre bind plugins: %s", pl.name)
}
configPlugins.Reserve.Enabled = append(
configPlugins.Reserve.Enabled,
config.Plugin{Name: pl.name},
)
}
f, err := newFrameworkWithQueueSortAndBind(registry, configPlugins, emptyArgs)
if err != nil {
t.Fatalf("fail to create framework: %s", err)
}
status := f.RunReservePlugins(context.TODO(), nil, pod, "")
if !reflect.DeepEqual(status, tt.wantStatus) {
t.Errorf("wrong status code. got %v, want %v", status, tt.wantStatus)
}
})
}
}
func TestPermitPlugins(t *testing.T) {
tests := []struct {
name string
plugins []*TestPlugin
want *v1alpha1.Status
}{
{
name: "NilPermitPlugin",
plugins: []*TestPlugin{},
want: nil,
},
{
name: "SuccessPermitPlugin",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{PermitStatus: int(v1alpha1.Success)},
},
},
want: nil,
},
{
name: "UnschedulablePermitPlugin",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{PermitStatus: int(v1alpha1.Unschedulable)},
},
},
want: v1alpha1.NewStatus(v1alpha1.Unschedulable, `rejected pod "" by permit plugin "TestPlugin": injected status`),
},
{
name: "ErrorPermitPlugin",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{PermitStatus: int(v1alpha1.Error)},
},
},
want: v1alpha1.NewStatus(v1alpha1.Error, `error while running "TestPlugin" permit plugin for pod "": injected status`),
},
{
name: "UnschedulableAndUnresolvablePermitPlugin",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{PermitStatus: int(v1alpha1.UnschedulableAndUnresolvable)},
},
},
want: v1alpha1.NewStatus(v1alpha1.UnschedulableAndUnresolvable, `rejected pod "" by permit plugin "TestPlugin": injected status`),
},
{
name: "WaitPermitPlugin",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{PermitStatus: int(v1alpha1.Wait)},
},
},
want: v1alpha1.NewStatus(v1alpha1.Wait, `one or more plugins asked to wait and no plugin rejected pod ""`),
},
{
name: "SuccessSuccessPermitPlugin",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{PermitStatus: int(v1alpha1.Success)},
},
{
name: "TestPlugin 1",
inj: injectedResult{PermitStatus: int(v1alpha1.Success)},
},
},
want: nil,
},
{
name: "ErrorAndErrorPlugins",
plugins: []*TestPlugin{
{
name: "TestPlugin",
inj: injectedResult{PermitStatus: int(v1alpha1.Error)},
},
{
name: "TestPlugin 1",
inj: injectedResult{PermitStatus: int(v1alpha1.Error)},
},
},
want: v1alpha1.NewStatus(v1alpha1.Error, `error while running "TestPlugin" permit plugin for pod "": injected status`),
},
}
for _, tt := range tests {
registry := Registry{}
configPlugins := &config.Plugins{Permit: &config.PluginSet{}}
for _, pl := range tt.plugins {
tmpPl := pl
if err := registry.Register(pl.name, func(_ runtime.Object, _ v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
return tmpPl, nil
}); err != nil {
t.Fatalf("Unable to register Permit plugin: %s", pl.name)
}
configPlugins.Permit.Enabled = append(
configPlugins.Permit.Enabled,
config.Plugin{Name: pl.name},
)
}
f, err := newFrameworkWithQueueSortAndBind(registry, configPlugins, emptyArgs)
if err != nil {
t.Fatalf("fail to create framework: %s", err)
}
status := f.RunPermitPlugins(context.TODO(), nil, pod, "")
if !reflect.DeepEqual(status, tt.want) {
t.Errorf("wrong status code. got %v, want %v", status, tt.want)
}
}
}
func TestRecordingMetrics(t *testing.T) {
state := &v1alpha1.CycleState{}
state.SetRecordPluginMetrics(true)
tests := []struct {
name string
action func(f v1alpha1.Framework)
inject injectedResult
wantExtensionPoint string
wantStatus v1alpha1.Code
}{
{
name: "PreFilter - Success",
action: func(f v1alpha1.Framework) { f.RunPreFilterPlugins(context.Background(), state, pod) },
wantExtensionPoint: "PreFilter",
wantStatus: v1alpha1.Success,
},
{
name: "PreScore - Success",
action: func(f v1alpha1.Framework) { f.RunPreScorePlugins(context.Background(), state, pod, nil) },
wantExtensionPoint: "PreScore",
wantStatus: v1alpha1.Success,
},
{
name: "Score - Success",
action: func(f v1alpha1.Framework) { f.RunScorePlugins(context.Background(), state, pod, nodes) },
wantExtensionPoint: "Score",
wantStatus: v1alpha1.Success,
},
{
name: "Reserve - Success",
action: func(f v1alpha1.Framework) { f.RunReservePlugins(context.Background(), state, pod, "") },
wantExtensionPoint: "Reserve",
wantStatus: v1alpha1.Success,
},
{
name: "Unreserve - Success",
action: func(f v1alpha1.Framework) { f.RunUnreservePlugins(context.Background(), state, pod, "") },
wantExtensionPoint: "Unreserve",
wantStatus: v1alpha1.Success,
},
{
name: "PreBind - Success",
action: func(f v1alpha1.Framework) { f.RunPreBindPlugins(context.Background(), state, pod, "") },
wantExtensionPoint: "PreBind",
wantStatus: v1alpha1.Success,
},
{
name: "Bind - Success",
action: func(f v1alpha1.Framework) { f.RunBindPlugins(context.Background(), state, pod, "") },
wantExtensionPoint: "Bind",
wantStatus: v1alpha1.Success,
},
{
name: "PostBind - Success",
action: func(f v1alpha1.Framework) { f.RunPostBindPlugins(context.Background(), state, pod, "") },
wantExtensionPoint: "PostBind",
wantStatus: v1alpha1.Success,
},
{
name: "Permit - Success",
action: func(f v1alpha1.Framework) { f.RunPermitPlugins(context.Background(), state, pod, "") },
wantExtensionPoint: "Permit",
wantStatus: v1alpha1.Success,
},
{
name: "PreFilter - Error",
action: func(f v1alpha1.Framework) { f.RunPreFilterPlugins(context.Background(), state, pod) },
inject: injectedResult{PreFilterStatus: int(v1alpha1.Error)},
wantExtensionPoint: "PreFilter",
wantStatus: v1alpha1.Error,
},
{
name: "PreScore - Error",
action: func(f v1alpha1.Framework) { f.RunPreScorePlugins(context.Background(), state, pod, nil) },
inject: injectedResult{PreScoreStatus: int(v1alpha1.Error)},
wantExtensionPoint: "PreScore",
wantStatus: v1alpha1.Error,
},
{
name: "Score - Error",
action: func(f v1alpha1.Framework) { f.RunScorePlugins(context.Background(), state, pod, nodes) },
inject: injectedResult{ScoreStatus: int(v1alpha1.Error)},
wantExtensionPoint: "Score",
wantStatus: v1alpha1.Error,
},
{
name: "Reserve - Error",
action: func(f v1alpha1.Framework) { f.RunReservePlugins(context.Background(), state, pod, "") },
inject: injectedResult{ReserveStatus: int(v1alpha1.Error)},
wantExtensionPoint: "Reserve",
wantStatus: v1alpha1.Error,
},
{
name: "PreBind - Error",
action: func(f v1alpha1.Framework) { f.RunPreBindPlugins(context.Background(), state, pod, "") },
inject: injectedResult{PreBindStatus: int(v1alpha1.Error)},
wantExtensionPoint: "PreBind",
wantStatus: v1alpha1.Error,
},
{
name: "Bind - Error",
action: func(f v1alpha1.Framework) { f.RunBindPlugins(context.Background(), state, pod, "") },
inject: injectedResult{BindStatus: int(v1alpha1.Error)},
wantExtensionPoint: "Bind",
wantStatus: v1alpha1.Error,
},
{
name: "Permit - Error",
action: func(f v1alpha1.Framework) { f.RunPermitPlugins(context.Background(), state, pod, "") },
inject: injectedResult{PermitStatus: int(v1alpha1.Error)},
wantExtensionPoint: "Permit",
wantStatus: v1alpha1.Error,
},
{
name: "Permit - Wait",
action: func(f v1alpha1.Framework) { f.RunPermitPlugins(context.Background(), state, pod, "") },
inject: injectedResult{PermitStatus: int(v1alpha1.Wait)},
wantExtensionPoint: "Permit",
wantStatus: v1alpha1.Wait,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
metrics.Register()
metrics.FrameworkExtensionPointDuration.Reset()
metrics.PluginExecutionDuration.Reset()
plugin := &TestPlugin{name: testPlugin, inj: tt.inject}
r := make(Registry)
r.Register(testPlugin,
func(_ runtime.Object, fh v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
return plugin, nil
})
pluginSet := &config.PluginSet{Enabled: []config.Plugin{{Name: testPlugin, Weight: 1}}}
plugins := &config.Plugins{
Score: pluginSet,
PreFilter: pluginSet,
Filter: pluginSet,
PreScore: pluginSet,
Reserve: pluginSet,
Permit: pluginSet,
PreBind: pluginSet,
Bind: pluginSet,
PostBind: pluginSet,
Unreserve: pluginSet,
}
recorder := newMetricsRecorder(100, time.Nanosecond)
f, err := newFrameworkWithQueueSortAndBind(r, plugins, emptyArgs, withMetricsRecorder(recorder), WithProfileName(testProfileName))
if err != nil {
t.Fatalf("Failed to create framework for testing: %v", err)
}
tt.action(f)
// Stop the goroutine which records metrics and ensure it's stopped.
close(recorder.stopCh)
<-recorder.isStoppedCh
// Try to clean up the metrics buffer again in case it's not empty.
recorder.flushMetrics()
collectAndCompareFrameworkMetrics(t, tt.wantExtensionPoint, tt.wantStatus)
collectAndComparePluginMetrics(t, tt.wantExtensionPoint, testPlugin, tt.wantStatus)
})
}
}
func TestRunBindPlugins(t *testing.T) {
tests := []struct {
name string
injects []v1alpha1.Code
wantStatus v1alpha1.Code
}{
{
name: "simple success",
injects: []v1alpha1.Code{v1alpha1.Success},
wantStatus: v1alpha1.Success,
},
{
name: "error on second",
injects: []v1alpha1.Code{v1alpha1.Skip, v1alpha1.Error, v1alpha1.Success},
wantStatus: v1alpha1.Error,
},
{
name: "all skip",
injects: []v1alpha1.Code{v1alpha1.Skip, v1alpha1.Skip, v1alpha1.Skip},
wantStatus: v1alpha1.Skip,
},
{
name: "error on third, but not reached",
injects: []v1alpha1.Code{v1alpha1.Skip, v1alpha1.Success, v1alpha1.Error},
wantStatus: v1alpha1.Success,
},
{
name: "no bind plugin, returns default binder",
injects: []v1alpha1.Code{},
wantStatus: v1alpha1.Success,
},
{
name: "invalid status",
injects: []v1alpha1.Code{v1alpha1.Unschedulable},
wantStatus: v1alpha1.Error,
},
{
name: "simple error",
injects: []v1alpha1.Code{v1alpha1.Error},
wantStatus: v1alpha1.Error,
},
{
name: "success on second, returns success",
injects: []v1alpha1.Code{v1alpha1.Skip, v1alpha1.Success},
wantStatus: v1alpha1.Success,
},
{
name: "invalid status, returns error",
injects: []v1alpha1.Code{v1alpha1.Skip, v1alpha1.UnschedulableAndUnresolvable},
wantStatus: v1alpha1.Error,
},
{
name: "error after success status, returns success",
injects: []v1alpha1.Code{v1alpha1.Success, v1alpha1.Error},
wantStatus: v1alpha1.Success,
},
{
name: "success before invalid status, returns success",
injects: []v1alpha1.Code{v1alpha1.Success, v1alpha1.Error},
wantStatus: v1alpha1.Success,
},
{
name: "success after error status, returns error",
injects: []v1alpha1.Code{v1alpha1.Error, v1alpha1.Success},
wantStatus: v1alpha1.Error,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
metrics.Register()
metrics.FrameworkExtensionPointDuration.Reset()
metrics.PluginExecutionDuration.Reset()
pluginSet := &config.PluginSet{}
r := make(Registry)
for i, inj := range tt.injects {
name := fmt.Sprintf("bind-%d", i)
plugin := &TestPlugin{name: name, inj: injectedResult{BindStatus: int(inj)}}
r.Register(name,
func(_ runtime.Object, fh v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
return plugin, nil
})
pluginSet.Enabled = append(pluginSet.Enabled, config.Plugin{Name: name})
}
plugins := &config.Plugins{Bind: pluginSet}
recorder := newMetricsRecorder(100, time.Nanosecond)
fwk, err := newFrameworkWithQueueSortAndBind(r, plugins, emptyArgs, withMetricsRecorder(recorder), WithProfileName(testProfileName))
if err != nil {
t.Fatal(err)
}
st := fwk.RunBindPlugins(context.Background(), state, pod, "")
if st.Code() != tt.wantStatus {
t.Errorf("got status code %s, want %s", st.Code(), tt.wantStatus)
}
// Stop the goroutine which records metrics and ensure it's stopped.
close(recorder.stopCh)
<-recorder.isStoppedCh
// Try to clean up the metrics buffer again in case it's not empty.
recorder.flushMetrics()
collectAndCompareFrameworkMetrics(t, "Bind", tt.wantStatus)
})
}
}
func TestPermitWaitDurationMetric(t *testing.T) {
tests := []struct {
name string
inject injectedResult
wantRes string
}{
{
name: "WaitOnPermit - No Wait",
},
{
name: "WaitOnPermit - Wait Timeout",
inject: injectedResult{PermitStatus: int(v1alpha1.Wait)},
wantRes: "Unschedulable",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
metrics.Register()
metrics.PermitWaitDuration.Reset()
plugin := &TestPlugin{name: testPlugin, inj: tt.inject}
r := make(Registry)
err := r.Register(testPlugin,
func(_ runtime.Object, fh v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
return plugin, nil
})
if err != nil {
t.Fatal(err)
}
plugins := &config.Plugins{
Permit: &config.PluginSet{Enabled: []config.Plugin{{Name: testPlugin, Weight: 1}}},
}
f, err := newFrameworkWithQueueSortAndBind(r, plugins, emptyArgs)
if err != nil {
t.Fatalf("Failed to create framework for testing: %v", err)
}
f.RunPermitPlugins(context.TODO(), nil, pod, "")
f.WaitOnPermit(context.TODO(), pod)
collectAndComparePermitWaitDuration(t, tt.wantRes)
})
}
}
func TestWaitOnPermit(t *testing.T) {
pod := &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: "pod",
UID: types.UID("pod"),
},
}
tests := []struct {
name string
action func(f v1alpha1.Framework)
wantStatus v1alpha1.Code
wantMessage string
}{
{
name: "Reject Waiting Pod",
action: func(f v1alpha1.Framework) {
f.GetWaitingPod(pod.UID).Reject("reject message")
},
wantStatus: v1alpha1.Unschedulable,
wantMessage: "pod \"pod\" rejected while waiting on permit: reject message",
},
{
name: "Allow Waiting Pod",
action: func(f v1alpha1.Framework) {
f.GetWaitingPod(pod.UID).Allow(permitPlugin)
},
wantStatus: v1alpha1.Success,
wantMessage: "",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
testPermitPlugin := &TestPermitPlugin{}
r := make(Registry)
r.Register(permitPlugin,
func(_ runtime.Object, fh v1alpha1.FrameworkHandle) (v1alpha1.Plugin, error) {
return testPermitPlugin, nil
})
plugins := &config.Plugins{
Permit: &config.PluginSet{Enabled: []config.Plugin{{Name: permitPlugin, Weight: 1}}},
}
f, err := newFrameworkWithQueueSortAndBind(r, plugins, emptyArgs)
if err != nil {
t.Fatalf("Failed to create framework for testing: %v", err)
}
runPermitPluginsStatus := f.RunPermitPlugins(context.Background(), nil, pod, "")
if runPermitPluginsStatus.Code() != v1alpha1.Wait {
t.Fatalf("Expected RunPermitPlugins to return status %v, but got %v",
v1alpha1.Wait, runPermitPluginsStatus.Code())
}
go tt.action(f)
waitOnPermitStatus := f.WaitOnPermit(context.Background(), pod)
if waitOnPermitStatus.Code() != tt.wantStatus {
t.Fatalf("Expected WaitOnPermit to return status %v, but got %v",
tt.wantStatus, waitOnPermitStatus.Code())
}
if waitOnPermitStatus.Message() != tt.wantMessage {
t.Fatalf("Expected WaitOnPermit to return status with message %q, but got %q",
tt.wantMessage, waitOnPermitStatus.Message())
}
})
}
}
func TestListPlugins(t *testing.T) {
tests := []struct {
name string
plugins *config.Plugins
// pluginSetCount include queue sort plugin and bind plugin.
pluginSetCount int
}{
{
name: "Add empty plugin",
plugins: &config.Plugins{},
pluginSetCount: 2,
},
{
name: "Add multiple plugins",
plugins: &config.Plugins{
Score: &config.PluginSet{Enabled: []config.Plugin{{Name: scorePlugin1}, {Name: scoreWithNormalizePlugin1}}},
},
pluginSetCount: 3,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
f, err := newFrameworkWithQueueSortAndBind(registry, tt.plugins, emptyArgs)
if err != nil {
t.Fatalf("Failed to create framework for testing: %v", err)
}
plugins := f.ListPlugins()
if len(plugins) != tt.pluginSetCount {
t.Fatalf("Unexpected pluginSet count: %v", len(plugins))
}
})
}
}
func buildScoreConfigDefaultWeights(ps ...string) *config.Plugins {
return buildScoreConfigWithWeights(defaultWeights, ps...)
}
func buildScoreConfigWithWeights(weights map[string]int32, ps ...string) *config.Plugins {
var plugins []config.Plugin
for _, p := range ps {
plugins = append(plugins, config.Plugin{Name: p, Weight: weights[p]})
}
return &config.Plugins{Score: &config.PluginSet{Enabled: plugins}}
}
type injectedResult struct {
ScoreRes int64 `json:"scoreRes,omitempty"`
NormalizeRes int64 `json:"normalizeRes,omitempty"`
ScoreStatus int `json:"scoreStatus,omitempty"`
NormalizeStatus int `json:"normalizeStatus,omitempty"`
PreFilterStatus int `json:"preFilterStatus,omitempty"`
PreFilterAddPodStatus int `json:"preFilterAddPodStatus,omitempty"`
PreFilterRemovePodStatus int `json:"preFilterRemovePodStatus,omitempty"`
FilterStatus int `json:"filterStatus,omitempty"`
PostFilterStatus int `json:"postFilterStatus,omitempty"`
PreScoreStatus int `json:"preScoreStatus,omitempty"`
ReserveStatus int `json:"reserveStatus,omitempty"`
PreBindStatus int `json:"preBindStatus,omitempty"`
BindStatus int `json:"bindStatus,omitempty"`
PermitStatus int `json:"permitStatus,omitempty"`
}
func setScoreRes(inj injectedResult) (int64, *v1alpha1.Status) {
if v1alpha1.Code(inj.ScoreStatus) != v1alpha1.Success {
return 0, v1alpha1.NewStatus(v1alpha1.Code(inj.ScoreStatus), "injecting failure.")
}
return inj.ScoreRes, nil
}
func injectNormalizeRes(inj injectedResult, scores v1alpha1.NodeScoreList) *v1alpha1.Status {
if v1alpha1.Code(inj.NormalizeStatus) != v1alpha1.Success {
return v1alpha1.NewStatus(v1alpha1.Code(inj.NormalizeStatus), "injecting failure.")
}
for i := range scores {
scores[i].Score = inj.NormalizeRes
}
return nil
}
func collectAndComparePluginMetrics(t *testing.T, wantExtensionPoint, wantPlugin string, wantStatus v1alpha1.Code) {
t.Helper()
m := collectHistogramMetric(metrics.PluginExecutionDuration)
if len(m.Label) != 3 {
t.Fatalf("Unexpected number of label pairs, got: %v, want: 2", len(m.Label))
}
if *m.Label[0].Value != wantExtensionPoint {
t.Errorf("Unexpected extension point label, got: %q, want %q", *m.Label[0].Value, wantExtensionPoint)
}
if *m.Label[1].Value != wantPlugin {
t.Errorf("Unexpected plugin label, got: %q, want %q", *m.Label[1].Value, wantPlugin)
}
if *m.Label[2].Value != wantStatus.String() {
t.Errorf("Unexpected status code label, got: %q, want %q", *m.Label[2].Value, wantStatus)
}
if *m.Histogram.SampleCount == 0 {
t.Error("Expect at least 1 sample")
}
if *m.Histogram.SampleSum <= 0 {
t.Errorf("Expect latency to be greater than 0, got: %v", *m.Histogram.SampleSum)
}
}
func collectAndCompareFrameworkMetrics(t *testing.T, wantExtensionPoint string, wantStatus v1alpha1.Code) {
t.Helper()
m := collectHistogramMetric(metrics.FrameworkExtensionPointDuration)
gotLabels := make(map[string]string, len(m.Label))
for _, p := range m.Label {
gotLabels[p.GetName()] = p.GetValue()
}
wantLabels := map[string]string{
"extension_point": wantExtensionPoint,
"status": wantStatus.String(),
"profile": testProfileName,
}
if diff := cmp.Diff(wantLabels, gotLabels); diff != "" {
t.Errorf("unexpected labels (-want,+got):\n%s", diff)
}
if *m.Histogram.SampleCount != 1 {
t.Errorf("Expect 1 sample, got: %v", *m.Histogram.SampleCount)
}
if *m.Histogram.SampleSum <= 0 {
t.Errorf("Expect latency to be greater than 0, got: %v", *m.Histogram.SampleSum)
}
}
func collectAndComparePermitWaitDuration(t *testing.T, wantRes string) {
m := collectHistogramMetric(metrics.PermitWaitDuration)
if wantRes == "" {
if m != nil {
t.Errorf("PermitWaitDuration shouldn't be recorded but got %+v", m)
}
return
}
if wantRes != "" {
if len(m.Label) != 1 {
t.Fatalf("Unexpected number of label pairs, got: %v, want: 1", len(m.Label))
}
if *m.Label[0].Value != wantRes {
t.Errorf("Unexpected result label, got: %q, want %q", *m.Label[0].Value, wantRes)
}
if *m.Histogram.SampleCount != 1 {
t.Errorf("Expect 1 sample, got: %v", *m.Histogram.SampleCount)
}
if *m.Histogram.SampleSum <= 0 {
t.Errorf("Expect latency to be greater than 0, got: %v", *m.Histogram.SampleSum)
}
}
}
func collectHistogramMetric(metric prometheus.Collector) *dto.Metric {
ch := make(chan prometheus.Metric, 100)
metric.Collect(ch)
select {
case got := <-ch:
m := &dto.Metric{}
got.Write(m)
return m
default:
return nil
}
}