277 lines
8.7 KiB
Go
277 lines
8.7 KiB
Go
/*
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Copyright 2019 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package nodelabel
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import (
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"context"
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"testing"
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v1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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framework "k8s.io/kubernetes/pkg/scheduler/framework/v1alpha1"
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"k8s.io/kubernetes/pkg/scheduler/internal/cache"
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schedulernodeinfo "k8s.io/kubernetes/pkg/scheduler/nodeinfo"
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)
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func TestValidateNodeLabelArgs(t *testing.T) {
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tests := []struct {
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name string
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args string
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err bool
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}{
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{
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name: "happy case",
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args: `{"presentLabels" : ["foo", "bar"], "absentLabels" : ["baz"], "presentLabelsPreference" : ["foo", "bar"], "absentLabelsPreference" : ["baz"]}`,
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},
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{
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name: "label presence conflict",
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// "bar" exists in both present and absent labels therefore validation should fail.
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args: `{"presentLabels" : ["foo", "bar"], "absentLabels" : ["bar", "baz"], "presentLabelsPreference" : ["foo", "bar"], "absentLabelsPreference" : ["baz"]}`,
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err: true,
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},
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{
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name: "label preference conflict",
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// "bar" exists in both present and absent labels preferences therefore validation should fail.
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args: `{"presentLabels" : ["foo", "bar"], "absentLabels" : ["baz"], "presentLabelsPreference" : ["foo", "bar"], "absentLabelsPreference" : ["bar", "baz"]}`,
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err: true,
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},
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{
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name: "both label presence and preference conflict",
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args: `{"presentLabels" : ["foo", "bar"], "absentLabels" : ["bar", "baz"], "presentLabelsPreference" : ["foo", "bar"], "absentLabelsPreference" : ["bar", "baz"]}`,
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err: true,
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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args := &runtime.Unknown{Raw: []byte(test.args)}
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_, err := New(args, nil)
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if test.err && err == nil {
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t.Fatal("Plugin initialization should fail.")
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}
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if !test.err && err != nil {
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t.Fatalf("Plugin initialization shouldn't fail: %v", err)
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}
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})
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}
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}
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func TestNodeLabelFilter(t *testing.T) {
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label := map[string]string{"foo": "any value", "bar": "any value"}
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var pod *v1.Pod
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tests := []struct {
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name string
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rawArgs string
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res framework.Code
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}{
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{
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name: "present label does not match",
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rawArgs: `{"presentLabels" : ["baz"]}`,
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res: framework.UnschedulableAndUnresolvable,
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},
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{
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name: "absent label does not match",
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rawArgs: `{"absentLabels" : ["baz"]}`,
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res: framework.Success,
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},
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{
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name: "one of two present labels matches",
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rawArgs: `{"presentLabels" : ["foo", "baz"]}`,
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res: framework.UnschedulableAndUnresolvable,
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},
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{
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name: "one of two absent labels matches",
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rawArgs: `{"absentLabels" : ["foo", "baz"]}`,
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res: framework.UnschedulableAndUnresolvable,
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},
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{
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name: "all present abels match",
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rawArgs: `{"presentLabels" : ["foo", "bar"]}`,
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res: framework.Success,
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},
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{
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name: "all absent labels match",
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rawArgs: `{"absentLabels" : ["foo", "bar"]}`,
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res: framework.UnschedulableAndUnresolvable,
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},
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{
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name: "both present and absent label matches",
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rawArgs: `{"presentLabels" : ["foo"], "absentLabels" : ["bar"]}`,
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res: framework.UnschedulableAndUnresolvable,
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},
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{
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name: "neither present nor absent label matches",
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rawArgs: `{"presentLabels" : ["foz"], "absentLabels" : ["baz"]}`,
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res: framework.UnschedulableAndUnresolvable,
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},
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{
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name: "present label matches and absent label doesn't match",
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rawArgs: `{"presentLabels" : ["foo"], "absentLabels" : ["baz"]}`,
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res: framework.Success,
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},
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{
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name: "present label doesn't match and absent label matches",
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rawArgs: `{"presentLabels" : ["foz"], "absentLabels" : ["bar"]}`,
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res: framework.UnschedulableAndUnresolvable,
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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node := v1.Node{ObjectMeta: metav1.ObjectMeta{Labels: label}}
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nodeInfo := schedulernodeinfo.NewNodeInfo()
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nodeInfo.SetNode(&node)
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args := &runtime.Unknown{Raw: []byte(test.rawArgs)}
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p, err := New(args, nil)
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if err != nil {
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t.Fatalf("Failed to create plugin: %v", err)
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}
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status := p.(framework.FilterPlugin).Filter(context.TODO(), nil, pod, nodeInfo)
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if status.Code() != test.res {
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t.Errorf("Status mismatch. got: %v, want: %v", status.Code(), test.res)
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}
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})
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}
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}
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func TestNodeLabelScore(t *testing.T) {
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tests := []struct {
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rawArgs string
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want int64
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name string
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}{
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{
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want: framework.MaxNodeScore,
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rawArgs: `{"presentLabelsPreference" : ["foo"]}`,
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name: "one present label match",
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},
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{
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want: 0,
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rawArgs: `{"presentLabelsPreference" : ["somelabel"]}`,
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name: "one present label mismatch",
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},
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{
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want: framework.MaxNodeScore,
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rawArgs: `{"presentLabelsPreference" : ["foo", "bar"]}`,
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name: "two present labels match",
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},
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{
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want: 0,
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rawArgs: `{"presentLabelsPreference" : ["somelabel1", "somelabel2"]}`,
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name: "two present labels mismatch",
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},
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{
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want: framework.MaxNodeScore / 2,
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rawArgs: `{"presentLabelsPreference" : ["foo", "somelabel"]}`,
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name: "two present labels only one matches",
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},
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{
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want: 0,
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rawArgs: `{"absentLabelsPreference" : ["foo"]}`,
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name: "one absent label match",
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},
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{
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want: framework.MaxNodeScore,
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rawArgs: `{"absentLabelsPreference" : ["somelabel"]}`,
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name: "one absent label mismatch",
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},
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{
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want: 0,
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rawArgs: `{"absentLabelsPreference" : ["foo", "bar"]}`,
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name: "two absent labels match",
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},
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{
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want: framework.MaxNodeScore,
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rawArgs: `{"absentLabelsPreference" : ["somelabel1", "somelabel2"]}`,
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name: "two absent labels mismatch",
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},
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{
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want: framework.MaxNodeScore / 2,
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rawArgs: `{"absentLabelsPreference" : ["foo", "somelabel"]}`,
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name: "two absent labels only one matches",
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},
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{
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want: framework.MaxNodeScore,
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rawArgs: `{"presentLabelsPreference" : ["foo", "bar"], "absentLabelsPreference" : ["somelabel1", "somelabel2"]}`,
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name: "two present labels match, two absent labels mismatch",
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},
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{
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want: 0,
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rawArgs: `{"absentLabelsPreference" : ["foo", "bar"], "presentLabelsPreference" : ["somelabel1", "somelabel2"]}`,
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name: "two present labels both mismatch, two absent labels both match",
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},
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{
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want: 3 * framework.MaxNodeScore / 4,
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rawArgs: `{"presentLabelsPreference" : ["foo", "somelabel"], "absentLabelsPreference" : ["somelabel1", "somelabel2"]}`,
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name: "two present labels one matches, two absent labels mismatch",
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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state := framework.NewCycleState()
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node := &v1.Node{ObjectMeta: metav1.ObjectMeta{Name: "machine1", Labels: map[string]string{"foo": "", "bar": ""}}}
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fh, _ := framework.NewFramework(nil, nil, nil, framework.WithSnapshotSharedLister(cache.NewSnapshot(nil, []*v1.Node{node})))
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args := &runtime.Unknown{Raw: []byte(test.rawArgs)}
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p, err := New(args, fh)
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if err != nil {
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t.Fatalf("Failed to create plugin: %+v", err)
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}
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nodeName := node.ObjectMeta.Name
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score, status := p.(framework.ScorePlugin).Score(context.Background(), state, nil, nodeName)
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if !status.IsSuccess() {
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t.Errorf("unexpected error: %v", status)
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}
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if test.want != score {
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t.Errorf("Wrong score. got %#v, want %#v", score, test.want)
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}
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})
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}
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}
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func TestNodeLabelFilterWithoutNode(t *testing.T) {
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var pod *v1.Pod
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t.Run("node does not exist", func(t *testing.T) {
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nodeInfo := schedulernodeinfo.NewNodeInfo()
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p, err := New(nil, nil)
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if err != nil {
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t.Fatalf("Failed to create plugin: %v", err)
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}
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status := p.(framework.FilterPlugin).Filter(context.TODO(), nil, pod, nodeInfo)
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if status.Code() != framework.Error {
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t.Errorf("Status mismatch. got: %v, want: %v", status.Code(), framework.Error)
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}
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})
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}
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func TestNodeLabelScoreWithoutNode(t *testing.T) {
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t.Run("node does not exist", func(t *testing.T) {
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fh, _ := framework.NewFramework(nil, nil, nil, framework.WithSnapshotSharedLister(cache.NewEmptySnapshot()))
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p, err := New(nil, fh)
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if err != nil {
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t.Fatalf("Failed to create plugin: %+v", err)
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}
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_, status := p.(framework.ScorePlugin).Score(context.Background(), nil, nil, "")
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if status.Code() != framework.Error {
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t.Errorf("Status mismatch. got: %v, want: %v", status.Code(), framework.Error)
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}
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})
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}
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