207 lines
8.2 KiB
Go
207 lines
8.2 KiB
Go
/*
|
|
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 state
|
|
|
|
import (
|
|
"os"
|
|
"strings"
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
|
|
"k8s.io/apimachinery/pkg/util/sets"
|
|
"k8s.io/kubernetes/pkg/kubelet/checkpointmanager"
|
|
testutil "k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/state/testing"
|
|
)
|
|
|
|
const testingCheckpoint = "dramanager_checkpoint_test"
|
|
|
|
// assertStateEqual marks provided test as failed if provided states differ
|
|
func assertStateEqual(t *testing.T, restoredState, expectedState ClaimInfoStateList) {
|
|
assert.Equal(t, expectedState, restoredState, "expected ClaimInfoState does not equal to restored one")
|
|
}
|
|
|
|
func TestCheckpointGetOrCreate(t *testing.T) {
|
|
testCases := []struct {
|
|
description string
|
|
checkpointContent string
|
|
expectedError string
|
|
expectedState ClaimInfoStateList
|
|
}{
|
|
{
|
|
"Create non-existing checkpoint",
|
|
"",
|
|
"",
|
|
[]ClaimInfoState{},
|
|
},
|
|
{
|
|
"Restore checkpoint - single claim",
|
|
`{"version":"v1","entries":[{"DriverName":"test-driver.cdi.k8s.io","ClassName":"class-name","ClaimUID":"067798be-454e-4be4-9047-1aa06aea63f7","ClaimName":"example","Namespace":"default","PodUIDs":{"139cdb46-f989-4f17-9561-ca10cfb509a6":{}},"CDIDevices":{"test-driver.cdi.k8s.io":["example.com/example=cdi-example"]}}],"checksum":153446146}`,
|
|
"",
|
|
[]ClaimInfoState{
|
|
{
|
|
DriverName: "test-driver.cdi.k8s.io",
|
|
ClassName: "class-name",
|
|
ClaimUID: "067798be-454e-4be4-9047-1aa06aea63f7",
|
|
ClaimName: "example",
|
|
Namespace: "default",
|
|
PodUIDs: sets.New("139cdb46-f989-4f17-9561-ca10cfb509a6"),
|
|
CDIDevices: map[string][]string{
|
|
"test-driver.cdi.k8s.io": {"example.com/example=cdi-example"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"Restore checkpoint - single claim - multiple devices",
|
|
`{"version":"v1","entries":[{"DriverName":"meta-test-driver.cdi.k8s.io","ClassName":"class-name","ClaimUID":"067798be-454e-4be4-9047-1aa06aea63f7","ClaimName":"example","Namespace":"default","PodUIDs":{"139cdb46-f989-4f17-9561-ca10cfb509a6":{}},"CDIDevices":{"test-driver-1.cdi.k8s.io":["example-1.com/example-1=cdi-example-1"],"test-driver-2.cdi.k8s.io":["example-2.com/example-2=cdi-example-2"]}}],"checksum":1363630443}`,
|
|
"",
|
|
[]ClaimInfoState{
|
|
{
|
|
DriverName: "meta-test-driver.cdi.k8s.io",
|
|
ClassName: "class-name",
|
|
ClaimUID: "067798be-454e-4be4-9047-1aa06aea63f7",
|
|
ClaimName: "example",
|
|
Namespace: "default",
|
|
PodUIDs: sets.New("139cdb46-f989-4f17-9561-ca10cfb509a6"),
|
|
CDIDevices: map[string][]string{
|
|
"test-driver-1.cdi.k8s.io": {"example-1.com/example-1=cdi-example-1"},
|
|
"test-driver-2.cdi.k8s.io": {"example-2.com/example-2=cdi-example-2"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"Restore checkpoint - multiple claims",
|
|
`{"version":"v1","entries":[{"DriverName":"test-driver.cdi.k8s.io","ClassName":"class-name-1","ClaimUID":"067798be-454e-4be4-9047-1aa06aea63f7","ClaimName":"example-1","Namespace":"default","PodUIDs":{"139cdb46-f989-4f17-9561-ca10cfb509a6":{}},"CDIDevices":{"test-driver.cdi.k8s.io":["example.com/example=cdi-example-1"]}},{"DriverName":"test-driver.cdi.k8s.io","ClaimUID":"4cf8db2d-06c0-7d70-1a51-e59b25b2c16c","ClassName":"class-name-2","ClaimName":"example-2","Namespace":"default","PodUIDs":{"139cdb46-f989-4f17-9561-ca10cfb509a6":{}},"CDIDevices":{"test-driver.cdi.k8s.io":["example.com/example=cdi-example-2"]}}],"checksum":1978566460}`,
|
|
"",
|
|
[]ClaimInfoState{
|
|
{
|
|
DriverName: "test-driver.cdi.k8s.io",
|
|
ClassName: "class-name-1",
|
|
ClaimUID: "067798be-454e-4be4-9047-1aa06aea63f7",
|
|
ClaimName: "example-1",
|
|
Namespace: "default",
|
|
PodUIDs: sets.New("139cdb46-f989-4f17-9561-ca10cfb509a6"),
|
|
CDIDevices: map[string][]string{
|
|
"test-driver.cdi.k8s.io": {"example.com/example=cdi-example-1"},
|
|
},
|
|
},
|
|
{
|
|
DriverName: "test-driver.cdi.k8s.io",
|
|
ClassName: "class-name-2",
|
|
ClaimUID: "4cf8db2d-06c0-7d70-1a51-e59b25b2c16c",
|
|
ClaimName: "example-2",
|
|
Namespace: "default",
|
|
PodUIDs: sets.New("139cdb46-f989-4f17-9561-ca10cfb509a6"),
|
|
CDIDevices: map[string][]string{
|
|
"test-driver.cdi.k8s.io": {"example.com/example=cdi-example-2"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"Restore checkpoint - invalid checksum",
|
|
`{"version":"v1","entries":[{"DriverName":"test-driver.cdi.k8s.io","ClassName":"class-name","ClaimUID":"067798be-454e-4be4-9047-1aa06aea63f7","ClaimName":"example","Namespace":"default","PodUIDs":{"139cdb46-f989-4f17-9561-ca10cfb509a6":{}},"CDIDevices":{"test-driver.cdi.k8s.io":["example.com/example=cdi-example"]}}],"checksum":1988120168}`,
|
|
"checkpoint is corrupted",
|
|
[]ClaimInfoState{},
|
|
},
|
|
{
|
|
"Restore checkpoint with invalid JSON",
|
|
`{`,
|
|
"unexpected end of JSON input",
|
|
[]ClaimInfoState{},
|
|
},
|
|
}
|
|
|
|
// create temp dir
|
|
testingDir, err := os.MkdirTemp("", "dramanager_state_test")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(testingDir)
|
|
|
|
// create checkpoint manager for testing
|
|
cpm, err := checkpointmanager.NewCheckpointManager(testingDir)
|
|
assert.NoError(t, err, "could not create testing checkpoint manager")
|
|
|
|
for _, tc := range testCases {
|
|
t.Run(tc.description, func(t *testing.T) {
|
|
// ensure there is no previous checkpoint
|
|
assert.NoError(t, cpm.RemoveCheckpoint(testingCheckpoint), "could not remove testing checkpoint")
|
|
|
|
// prepare checkpoint for testing
|
|
if strings.TrimSpace(tc.checkpointContent) != "" {
|
|
checkpoint := &testutil.MockCheckpoint{Content: tc.checkpointContent}
|
|
assert.NoError(t, cpm.CreateCheckpoint(testingCheckpoint, checkpoint), "could not create testing checkpoint")
|
|
}
|
|
|
|
var state ClaimInfoStateList
|
|
|
|
checkpointState, err := NewCheckpointState(testingDir, testingCheckpoint)
|
|
if err == nil {
|
|
state, err = checkpointState.GetOrCreate()
|
|
}
|
|
if strings.TrimSpace(tc.expectedError) != "" {
|
|
assert.Error(t, err)
|
|
assert.Contains(t, err.Error(), tc.expectedError)
|
|
} else {
|
|
assert.NoError(t, err, "unexpected error while creating checkpointState")
|
|
// compare state after restoration with the one expected
|
|
assertStateEqual(t, state, tc.expectedState)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestCheckpointStateStore(t *testing.T) {
|
|
claimInfoState := ClaimInfoState{
|
|
DriverName: "test-driver.cdi.k8s.io",
|
|
ClassName: "class-name",
|
|
ClaimUID: "067798be-454e-4be4-9047-1aa06aea63f7",
|
|
ClaimName: "example",
|
|
Namespace: "default",
|
|
PodUIDs: sets.New("139cdb46-f989-4f17-9561-ca10cfb509a6"),
|
|
CDIDevices: map[string][]string{
|
|
"test-driver.cdi.k8s.io": {"example.com/example=cdi-example"},
|
|
},
|
|
}
|
|
|
|
expectedCheckpoint := `{"version":"v1","entries":[{"DriverName":"test-driver.cdi.k8s.io","ClassName":"class-name","ClaimUID":"067798be-454e-4be4-9047-1aa06aea63f7","ClaimName":"example","Namespace":"default","PodUIDs":{"139cdb46-f989-4f17-9561-ca10cfb509a6":{}},"CDIDevices":{"test-driver.cdi.k8s.io":["example.com/example=cdi-example"]}}],"checksum":153446146}`
|
|
|
|
// create temp dir
|
|
testingDir, err := os.MkdirTemp("", "dramanager_state_test")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(testingDir)
|
|
|
|
cpm, err := checkpointmanager.NewCheckpointManager(testingDir)
|
|
assert.NoError(t, err, "could not create testing checkpoint manager")
|
|
assert.NoError(t, cpm.RemoveCheckpoint(testingCheckpoint), "could not remove testing checkpoint")
|
|
|
|
cs, err := NewCheckpointState(testingDir, testingCheckpoint)
|
|
assert.NoError(t, err, "could not create testing checkpointState instance")
|
|
err = cs.Store(ClaimInfoStateList{claimInfoState})
|
|
assert.NoError(t, err, "could not store ClaimInfoState")
|
|
checkpoint := NewDRAManagerCheckpoint()
|
|
cpm.GetCheckpoint(testingCheckpoint, checkpoint)
|
|
checkpointData, err := checkpoint.MarshalCheckpoint()
|
|
assert.NoError(t, err, "could not Marshal Checkpoint")
|
|
assert.Equal(t, expectedCheckpoint, string(checkpointData), "expected ClaimInfoState does not equal to restored one")
|
|
}
|