apiserver/pkg/audit/context_test.go

121 lines
3.4 KiB
Go

/*
Copyright 2021 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 audit
import (
"context"
"fmt"
"sync"
"testing"
auditinternal "k8s.io/apiserver/pkg/apis/audit"
"github.com/stretchr/testify/assert"
)
func TestAddAuditAnnotation(t *testing.T) {
const (
annotationKeyTemplate = "test-annotation-%d"
annotationValue = "test-annotation-value"
numAnnotations = 10
)
expectAnnotations := func(t *testing.T, annotations map[string]string) {
assert.Len(t, annotations, numAnnotations)
}
noopValidator := func(_ *testing.T, _ context.Context) {}
preEventValidator := func(t *testing.T, ctx context.Context) {
ev := auditinternal.Event{
Level: auditinternal.LevelMetadata,
}
addAuditAnnotationsFrom(ctx, &ev)
expectAnnotations(t, ev.Annotations)
}
postEventValidator := func(t *testing.T, ctx context.Context) {
ev := AuditEventFrom(ctx)
expectAnnotations(t, ev.Annotations)
}
postEventEmptyValidator := func(t *testing.T, ctx context.Context) {
ev := AuditEventFrom(ctx)
assert.Empty(t, ev.Annotations)
}
tests := []struct {
description string
ctx context.Context
validator func(t *testing.T, ctx context.Context)
}{{
description: "no audit",
ctx: context.Background(),
validator: noopValidator,
}, {
description: "no annotations context",
ctx: WithAuditContext(context.Background(), newAuditContext(auditinternal.LevelMetadata)),
validator: postEventValidator,
}, {
description: "no audit context",
ctx: WithAuditAnnotations(context.Background()),
validator: preEventValidator,
}, {
description: "both contexts metadata level",
ctx: WithAuditContext(WithAuditAnnotations(context.Background()), newAuditContext(auditinternal.LevelMetadata)),
validator: postEventValidator,
}, {
description: "both contexts none level",
ctx: WithAuditContext(WithAuditAnnotations(context.Background()), newAuditContext(auditinternal.LevelNone)),
validator: postEventEmptyValidator,
}}
for _, test := range tests {
t.Run(test.description, func(t *testing.T) {
var wg sync.WaitGroup
wg.Add(numAnnotations)
for i := 0; i < numAnnotations; i++ {
go func(i int) {
AddAuditAnnotation(test.ctx, fmt.Sprintf(annotationKeyTemplate, i), annotationValue)
wg.Done()
}(i)
}
wg.Wait()
test.validator(t, test.ctx)
})
}
}
func TestLogAnnotation(t *testing.T) {
ev := &auditinternal.Event{
Level: auditinternal.LevelMetadata,
AuditID: "fake id",
}
logAnnotation(ev, "foo", "bar")
logAnnotation(ev, "foo", "baz")
assert.Equal(t, "bar", ev.Annotations["foo"], "audit annotation should not be overwritten.")
logAnnotation(ev, "qux", "")
logAnnotation(ev, "qux", "baz")
assert.Equal(t, "", ev.Annotations["qux"], "audit annotation should not be overwritten.")
}
func newAuditContext(l auditinternal.Level) *AuditContext {
return &AuditContext{
Event: &auditinternal.Event{
Level: l,
},
}
}