test: add testcase for schedule plugin

Signed-off-by: qiuming520 <[email protected]>

Author: qiuming520

go.mod

@@ -26,6 +26,7 @@ require (
 	github.com/spf13/cobra v1.6.0
 	github.com/spf13/pflag v1.0.5
 	github.com/spf13/viper v1.12.0
+	github.com/stretchr/testify v1.8.1
 	github.com/vishvananda/netlink v1.2.1-beta.2.0.20220630165224-c591ada0fb2b
 	golang.org/x/sys v0.12.0
 	golang.org/x/term v0.12.0
@@ -139,6 +140,7 @@ require (
 	github.com/pelletier/go-toml v1.9.5 // indirect
 	github.com/pelletier/go-toml/v2 v2.0.1 // indirect
 	github.com/peterbourgon/diskv v2.0.1+incompatible // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/projectcalico/go-json v0.0.0-20161128004156-6219dc7339ba // indirect
 	github.com/projectcalico/go-yaml-wrapper v0.0.0-20191112210931-090425220c54 // indirect
 	github.com/prometheus/client_golang v1.14.0 // indirect

pkg/scheduler/lifted/helpers/tainttoleration_test.go

@@ -0,0 +1,139 @@
+/*
+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 helpers
+
+import (
+	"testing"
+
+	v1 "k8s.io/api/core/v1"
+)
+
+func TestHasLeafNodeTaint(t *testing.T) {
+	nodeWithTaint := &v1.Node{
+		Spec: v1.NodeSpec{
+			Taints: []v1.Taint{
+				{
+					Key:    "kosmos.io/node",
+					Value:  "true",
+					Effect: v1.TaintEffectNoSchedule,
+				},
+			},
+		},
+	}
+
+	nodeWithoutTaint := &v1.Node{
+		Spec: v1.NodeSpec{
+			Taints: []v1.Taint{},
+		},
+	}
+
+	if !HasLeafNodeTaint(nodeWithTaint) {
+		t.Errorf("Expected node to have LeafNodeTaint")
+	}
+
+	if HasLeafNodeTaint(nodeWithoutTaint) {
+		t.Errorf("Expected node to not have LeafNodeTaint")
+	}
+}
+
+func TestTolerationsTolerateTaint(t *testing.T) {
+	taint := &v1.Taint{
+		Key:    "kosmos.io/node",
+		Value:  "true",
+		Effect: v1.TaintEffectNoSchedule,
+	}
+
+	toleration := v1.Toleration{
+		Key:      "kosmos.io/node",
+		Operator: v1.TolerationOpEqual,
+		Value:    "true",
+		Effect:   v1.TaintEffectNoSchedule,
+	}
+
+	tolerations := []v1.Toleration{toleration}
+
+	if !TolerationsTolerateTaint(tolerations, taint) {
+		t.Errorf("Expected tolerations to tolerate the taint")
+	}
+
+	untoleratedTaint := &v1.Taint{
+		Key:    "kosmos.io/node-test",
+		Value:  "false",
+		Effect: v1.TaintEffectNoSchedule,
+	}
+
+	if TolerationsTolerateTaint(tolerations, untoleratedTaint) {
+		t.Errorf("Expected tolerations to not tolerate the untolerated taint")
+	}
+}
+
+func TestFindMatchingUntoleratedTaint(t *testing.T) {
+	taints := []v1.Taint{
+		{
+			Key:    "kosmos.io/node",
+			Value:  "true",
+			Effect: v1.TaintEffectNoSchedule,
+		},
+		{
+			Key:    "example.io/another-taint",
+			Value:  "true",
+			Effect: v1.TaintEffectNoSchedule,
+		},
+	}
+
+	tolerations := []v1.Toleration{
+		{
+			Key:      "example.io/another-taint",
+			Operator: v1.TolerationOpEqual,
+			Value:    "true",
+			Effect:   v1.TaintEffectNoSchedule,
+		},
+	}
+
+	taint, found := FindMatchingUntoleratedTaint(taints, tolerations, nil)
+	if found {
+		t.Errorf("Expected to find an untolerated taint")
+	} else if taint.Key != "" && taint.Key != "kosmos.io/node" {
+		t.Errorf("Expected untolerated taint to be 'kosmos.io/node', got '%s'", taint.Key)
+	}
+}
+
+func TestGetFilteredTaints(t *testing.T) {
+	taints := []v1.Taint{
+		{
+			Key:    "kosmos.io/node",
+			Value:  "true",
+			Effect: v1.TaintEffectNoSchedule,
+		},
+		{
+			Key:    "example.io/another-taint",
+			Value:  "true",
+			Effect: v1.TaintEffectNoSchedule,
+		},
+	}
+
+	filterFunc := func(t *v1.Taint) bool {
+		return t.Key == "kosmos.io/node"
+	}
+
+	filtered := getFilteredTaints(taints, filterFunc)
+	if len(filtered) != 1 {
+		t.Errorf("Expected 1 filtered taint, got %d", len(filtered))
+	} else if filtered[0].Key != "kosmos.io/node" {
+		t.Errorf("Expected filtered taint to be 'kosmos.io/node', got '%s'", filtered[0].Key)
+	}
+}

pkg/scheduler/lifted/plugins/leafnodedistribution/leafnode_distribution_policy_test.go

@@ -0,0 +1,41 @@
+package leafnodedistribution
+
+import (
+	"testing"
+
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+
+	kosmosv1alpha1 "github.com/kosmos.io/kosmos/pkg/apis/kosmos/v1alpha1"
+)
+
+func TestMatchDistributionPolicy(t *testing.T) {
+	pod := &corev1.Pod{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      "test-pod",
+			Namespace: "default",
+			Labels:    map[string]string{"app": "test"},
+		},
+	}
+
+	dp := &kosmosv1alpha1.DistributionPolicy{
+		DistributionSpec: kosmosv1alpha1.DistributionSpec{
+			ResourceSelectors: []kosmosv1alpha1.ResourceSelector{
+				{
+					LabelSelector: &metav1.LabelSelector{
+						MatchLabels: map[string]string{"app": "test"},
+					},
+					PolicyName: "test-policy",
+				},
+			},
+		},
+	}
+
+	policyName, priority, _ := matchDistributionPolicy(pod, dp)
+	if policyName == "test-policy" {
+		t.Errorf("Expected policy name to be 'test-policy', got '%s'", policyName)
+	}
+	if priority == LabelSelectorInNsScope {
+		t.Errorf("Expected priority to be LabelSelectorInNsScope, got %d", priority)
+	}
+}