97 lines
3.5 KiB
Go
97 lines
3.5 KiB
Go
/*
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Copyright 2023 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 container_test
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import (
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"context"
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"reflect"
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"testing"
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runtimeapi "k8s.io/cri-api/pkg/apis/runtime/v1"
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. "k8s.io/kubernetes/pkg/kubelet/container"
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ctest "k8s.io/kubernetes/pkg/kubelet/container/testing"
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)
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func TestIsContainerFsSeparateFromImageFs(t *testing.T) {
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runtime := &ctest.FakeRuntime{}
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fakeSources := ctest.NewFakeReadyProvider()
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gcContainer, err := NewContainerGC(runtime, GCPolicy{}, fakeSources)
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if err != nil {
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t.Errorf("unexpected error")
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}
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cases := []struct {
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name string
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containerFs []*runtimeapi.FilesystemUsage
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imageFs []*runtimeapi.FilesystemUsage
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writeableSeparateFromReadOnly bool
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}{
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{
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name: "Only images",
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imageFs: []*runtimeapi.FilesystemUsage{{FsId: &runtimeapi.FilesystemIdentifier{Mountpoint: "image"}}},
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writeableSeparateFromReadOnly: false,
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},
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{
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name: "images and containers",
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imageFs: []*runtimeapi.FilesystemUsage{{FsId: &runtimeapi.FilesystemIdentifier{Mountpoint: "image"}}},
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containerFs: []*runtimeapi.FilesystemUsage{{FsId: &runtimeapi.FilesystemIdentifier{Mountpoint: "container"}}},
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writeableSeparateFromReadOnly: true,
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},
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{
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name: "same filesystem",
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imageFs: []*runtimeapi.FilesystemUsage{{FsId: &runtimeapi.FilesystemIdentifier{Mountpoint: "image"}}},
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containerFs: []*runtimeapi.FilesystemUsage{{FsId: &runtimeapi.FilesystemIdentifier{Mountpoint: "image"}}},
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writeableSeparateFromReadOnly: false,
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},
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{
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name: "Only containers",
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containerFs: []*runtimeapi.FilesystemUsage{{FsId: &runtimeapi.FilesystemIdentifier{Mountpoint: "image"}}},
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writeableSeparateFromReadOnly: false,
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},
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{
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name: "neither are specified",
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writeableSeparateFromReadOnly: false,
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},
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{
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name: "both are empty arrays",
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writeableSeparateFromReadOnly: false,
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containerFs: []*runtimeapi.FilesystemUsage{},
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imageFs: []*runtimeapi.FilesystemUsage{},
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},
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{
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name: "FsId does not exist",
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writeableSeparateFromReadOnly: false,
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containerFs: []*runtimeapi.FilesystemUsage{{UsedBytes: &runtimeapi.UInt64Value{Value: 10}}},
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imageFs: []*runtimeapi.FilesystemUsage{{UsedBytes: &runtimeapi.UInt64Value{Value: 10}}},
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},
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}
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for _, tc := range cases {
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runtime.SetContainerFsStats(tc.containerFs)
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runtime.SetImageFsStats(tc.imageFs)
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actualCommand := gcContainer.IsContainerFsSeparateFromImageFs(context.TODO())
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if e, a := tc.writeableSeparateFromReadOnly, actualCommand; !reflect.DeepEqual(e, a) {
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t.Errorf("%v: unexpected value; expected %v, got %v", tc.name, e, a)
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}
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runtime.SetContainerFsStats(nil)
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runtime.SetImageFsStats(nil)
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}
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}
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