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/*
Copyright 2020 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 resourcequota
import (
"context"
"errors"
"testing"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/resource"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apiserver/pkg/admission"
v1 "k8s.io/apiserver/pkg/admission/plugin/resourcequota/apis/resourcequota/v1"
"k8s.io/apiserver/pkg/quota/v1/generic"
)
func TestPrettyPrint(t *testing.T) {
toResourceList := func(resources map[corev1.ResourceName]string) corev1.ResourceList {
resourceList := corev1.ResourceList{}
for key, value := range resources {
resourceList[key] = resource.MustParse(value)
}
return resourceList
}
testCases := []struct {
input corev1.ResourceList
expected string
}{
{
input: toResourceList(map[corev1.ResourceName]string{
corev1.ResourceCPU: "100m",
}),
expected: "cpu=100m",
},
{
input: toResourceList(map[corev1.ResourceName]string{
corev1.ResourcePods: "10",
corev1.ResourceServices: "10",
corev1.ResourceReplicationControllers: "10",
corev1.ResourceServicesNodePorts: "10",
corev1.ResourceRequestsCPU: "100m",
corev1.ResourceRequestsMemory: "100Mi",
corev1.ResourceLimitsCPU: "100m",
corev1.ResourceLimitsMemory: "100Mi",
}),
expected: "limits.cpu=100m,limits.memory=100Mi,pods=10,replicationcontrollers=10,requests.cpu=100m,requests.memory=100Mi,services=10,services.nodeports=10",
},
}
for i, testCase := range testCases {
result := prettyPrint(testCase.input)
if result != testCase.expected {
t.Errorf("Pretty print did not give stable sorted output[%d], expected %v, but got %v", i, testCase.expected, result)
}
}
}
func TestHasUsageStats(t *testing.T) {
testCases := map[string]struct {
a corev1.ResourceQuota
relevant []corev1.ResourceName
expected bool
}{
"empty": {
a: corev1.ResourceQuota{Status: corev1.ResourceQuotaStatus{Hard: corev1.ResourceList{}}},
relevant: []corev1.ResourceName{corev1.ResourceMemory},
expected: true,
},
"hard-only": {
a: corev1.ResourceQuota{
Status: corev1.ResourceQuotaStatus{
Hard: corev1.ResourceList{
corev1.ResourceMemory: resource.MustParse("1Gi"),
},
Used: corev1.ResourceList{},
},
},
relevant: []corev1.ResourceName{corev1.ResourceMemory},
expected: false,
},
"hard-used": {
a: corev1.ResourceQuota{
Status: corev1.ResourceQuotaStatus{
Hard: corev1.ResourceList{
corev1.ResourceMemory: resource.MustParse("1Gi"),
},
Used: corev1.ResourceList{
corev1.ResourceMemory: resource.MustParse("500Mi"),
},
},
},
relevant: []corev1.ResourceName{corev1.ResourceMemory},
expected: true,
},
"hard-used-relevant": {
a: corev1.ResourceQuota{
Status: corev1.ResourceQuotaStatus{
Hard: corev1.ResourceList{
corev1.ResourceMemory: resource.MustParse("1Gi"),
corev1.ResourcePods: resource.MustParse("1"),
},
Used: corev1.ResourceList{
corev1.ResourceMemory: resource.MustParse("500Mi"),
},
},
},
relevant: []corev1.ResourceName{corev1.ResourceMemory},
expected: true,
},
}
for testName, testCase := range testCases {
if result := hasUsageStats(&testCase.a, testCase.relevant); result != testCase.expected {
t.Errorf("%s expected: %v, actual: %v", testName, testCase.expected, result)
}
}
}
type fakeEvaluator struct{}
func (fakeEvaluator) Evaluate(a admission.Attributes) error {
return errors.New("should not be called")
}
func TestExcludedOperations(t *testing.T) {
a := &QuotaAdmission{
evaluator: fakeEvaluator{},
}
testCases := []struct {
desc string
attr admission.Attributes
}{
{
"non-namespaced resource",
admission.NewAttributesRecord(nil, nil, schema.GroupVersionKind{}, "", "namespace", schema.GroupVersionResource{}, "", admission.Create, nil, false, nil),
},
{
"namespace creation",
admission.NewAttributesRecord(nil, nil, v1.SchemeGroupVersion.WithKind("Namespace"), "namespace", "namespace", schema.GroupVersionResource{}, "", admission.Create, nil, false, nil),
},
}
for _, test := range testCases {
if err := a.Validate(context.TODO(), test.attr, nil); err != nil {
t.Errorf("Test case: %q. Expected no error but got: %v", test.desc, err)
}
}
}
func TestInitializationOrder(t *testing.T) {
a := &QuotaAdmission{}
qca := generic.NewConfiguration(nil, nil)
a.SetQuotaConfiguration(qca)
if err := a.ValidateInitialization(); err != stopChUnconfiguredErr {
t.Errorf("unexpected error: %v", err)
}
}
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