Files
kata-containers/virtcontainers/filesystem_test.go
Sebastien Boeuf 927487c142 revert: "virtcontainers: support pre-add storage for frakti"
This PR got merged while it had some issues with some shim processes
being left behind after k8s testing. And because those issues were
real issues introduced by this PR (not some random failures), now
the master branch is broken and new pull requests cannot get the
CI passing. That's the reason why this commit revert the changes
introduced by this PR so that we can fix the master branch.

Fixes #529

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2018-07-27 09:39:56 -07:00

565 lines
11 KiB
Go

// Copyright (c) 2016 Intel Corporation
//
// SPDX-License-Identifier: Apache-2.0
//
package virtcontainers
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"reflect"
"testing"
"github.com/kata-containers/runtime/virtcontainers/device/manager"
)
func TestFilesystemCreateAllResourcesSuccessful(t *testing.T) {
fs := &filesystem{}
contConfigs := []ContainerConfig{
{ID: "1"},
{ID: "10"},
{ID: "100"},
}
sandboxConfig := &SandboxConfig{
Containers: contConfigs,
}
sandbox := &Sandbox{
id: testSandboxID,
storage: fs,
config: sandboxConfig,
devManager: manager.NewDeviceManager(manager.VirtioBlock),
containers: map[string]*Container{},
}
if err := sandbox.newContainers(); err != nil {
t.Fatal(err)
}
sandboxConfigPath := filepath.Join(configStoragePath, testSandboxID)
sandboxRunPath := filepath.Join(runStoragePath, testSandboxID)
os.RemoveAll(sandboxConfigPath)
os.RemoveAll(sandboxRunPath)
for _, container := range contConfigs {
configPath := filepath.Join(configStoragePath, testSandboxID, container.ID)
os.RemoveAll(configPath)
runPath := filepath.Join(runStoragePath, testSandboxID, container.ID)
os.RemoveAll(runPath)
}
err := fs.createAllResources(sandbox)
if err != nil {
t.Fatal(err)
}
// Check resources
_, err = os.Stat(sandboxConfigPath)
if err != nil {
t.Fatal(err)
}
_, err = os.Stat(sandboxRunPath)
if err != nil {
t.Fatal(err)
}
for _, container := range contConfigs {
configPath := filepath.Join(configStoragePath, testSandboxID, container.ID)
s, err := os.Stat(configPath)
if err != nil {
t.Fatal(err)
}
// Check we created the dirs with the correct mode
if s.Mode() != dirMode {
t.Fatal(fmt.Errorf("dirmode [%v] != expected [%v]", s.Mode(), dirMode))
}
runPath := filepath.Join(runStoragePath, testSandboxID, container.ID)
s, err = os.Stat(runPath)
if err != nil {
t.Fatal(err)
}
// Check we created the dirs with the correct mode
if s.Mode() != dirMode {
t.Fatal(fmt.Errorf("dirmode [%v] != expected [%v]", s.Mode(), dirMode))
}
}
}
func TestFilesystemCreateAllResourcesFailingSandboxIDEmpty(t *testing.T) {
fs := &filesystem{}
sandbox := &Sandbox{}
err := fs.createAllResources(sandbox)
if err == nil {
t.Fatal()
}
}
func TestFilesystemCreateAllResourcesFailingContainerIDEmpty(t *testing.T) {
fs := &filesystem{}
containers := map[string]*Container{
testContainerID: {},
}
sandbox := &Sandbox{
id: testSandboxID,
containers: containers,
}
err := fs.createAllResources(sandbox)
if err == nil {
t.Fatal()
}
}
type TestNoopStructure struct {
Field1 string
Field2 string
}
func TestFilesystemStoreFileSuccessfulNotExisting(t *testing.T) {
fs := &filesystem{}
path := filepath.Join(testDir, "testFilesystem")
os.Remove(path)
data := TestNoopStructure{
Field1: "value1",
Field2: "value2",
}
expected := "{\"Field1\":\"value1\",\"Field2\":\"value2\"}"
err := fs.storeFile(path, data)
if err != nil {
t.Fatal(err)
}
fileData, err := ioutil.ReadFile(path)
if err != nil {
t.Fatal(err)
}
if string(fileData) != expected {
t.Fatal()
}
}
func TestFilesystemStoreFileSuccessfulExisting(t *testing.T) {
fs := &filesystem{}
path := filepath.Join(testDir, "testFilesystem")
os.Remove(path)
f, err := os.Create(path)
if err != nil {
t.Fatal(err)
}
f.Close()
data := TestNoopStructure{
Field1: "value1",
Field2: "value2",
}
expected := "{\"Field1\":\"value1\",\"Field2\":\"value2\"}"
err = fs.storeFile(path, data)
if err != nil {
t.Fatal(err)
}
fileData, err := ioutil.ReadFile(path)
if err != nil {
t.Fatal(err)
}
if string(fileData) != expected {
t.Fatal()
}
}
func TestFilesystemStoreFileFailingMarshalling(t *testing.T) {
fs := &filesystem{}
path := filepath.Join(testDir, "testFilesystem")
os.Remove(path)
data := make(chan bool)
err := fs.storeFile(path, data)
if err == nil {
t.Fatal()
}
}
func TestFilesystemFetchFileSuccessful(t *testing.T) {
fs := &filesystem{}
data := TestNoopStructure{}
path := filepath.Join(testDir, "testFilesystem")
os.Remove(path)
f, err := os.Create(path)
if err != nil {
t.Fatal(err)
}
dataToWrite := "{\"Field1\":\"value1\",\"Field2\":\"value2\"}"
n, err := f.WriteString(dataToWrite)
if err != nil || n != len(dataToWrite) {
f.Close()
t.Fatal(err)
}
f.Close()
err = fs.fetchFile(path, sandboxResource(-1), &data)
if err != nil {
t.Fatal(err)
}
expected := TestNoopStructure{
Field1: "value1",
Field2: "value2",
}
if reflect.DeepEqual(data, expected) == false {
t.Fatal()
}
}
func TestFilesystemFetchFileFailingNoFile(t *testing.T) {
fs := &filesystem{}
data := TestNoopStructure{}
path := filepath.Join(testDir, "testFilesystem")
os.Remove(path)
err := fs.fetchFile(path, sandboxResource(-1), &data)
if err == nil {
t.Fatal()
}
}
func TestFilesystemFetchFileFailingUnMarshalling(t *testing.T) {
fs := &filesystem{}
data := TestNoopStructure{}
path := filepath.Join(testDir, "testFilesystem")
os.Remove(path)
f, err := os.Create(path)
if err != nil {
t.Fatal(err)
}
f.Close()
err = fs.fetchFile(path, sandboxResource(-1), data)
if err == nil {
t.Fatal()
}
}
func TestFilesystemFetchContainerConfigSuccessful(t *testing.T) {
fs := &filesystem{}
contID := "100"
rootFs := "rootfs"
contConfigDir := filepath.Join(configStoragePath, testSandboxID, contID)
os.MkdirAll(contConfigDir, dirMode)
path := filepath.Join(contConfigDir, configFile)
os.Remove(path)
f, err := os.Create(path)
if err != nil {
t.Fatal(err)
}
configData := fmt.Sprintf("{\"ID\":\"%s\",\"RootFs\":\"%s\"}", contID, rootFs)
n, err := f.WriteString(configData)
if err != nil || n != len(configData) {
f.Close()
t.Fatal(err)
}
f.Close()
data, err := fs.fetchContainerConfig(testSandboxID, contID)
if err != nil {
t.Fatal(err)
}
expected := ContainerConfig{
ID: contID,
RootFs: rootFs,
}
if reflect.DeepEqual(data, expected) == false {
t.Fatal()
}
}
func TestFilesystemFetchContainerConfigFailingContIDEmpty(t *testing.T) {
fs := &filesystem{}
_, err := fs.fetchContainerConfig(testSandboxID, "")
if err == nil {
t.Fatal()
}
}
func TestFilesystemFetchContainerConfigFailingSandboxIDEmpty(t *testing.T) {
fs := &filesystem{}
_, err := fs.fetchContainerConfig("", "100")
if err == nil {
t.Fatal()
}
}
func TestFilesystemFetchContainerMountsSuccessful(t *testing.T) {
fs := &filesystem{}
contID := "100"
contMountsDir := filepath.Join(runStoragePath, testSandboxID, contID)
os.MkdirAll(contMountsDir, dirMode)
path := filepath.Join(contMountsDir, mountsFile)
os.Remove(path)
f, err := os.Create(path)
if err != nil {
t.Fatal(err)
}
source := "/dev/sda1"
dest := "/root"
mntType := "ext4"
options := "rw"
hostPath := "/tmp/root"
mountData := fmt.Sprintf(`
[
{
"Source":"%s",
"Destination":"%s",
"Type":"%s",
"Options": ["%s"],
"HostPath":"%s"
}
]
`, source, dest, mntType, options, hostPath)
n, err := f.WriteString(mountData)
if err != nil || n != len(mountData) {
f.Close()
t.Fatal(err)
}
f.Close()
data, err := fs.fetchContainerMounts(testSandboxID, contID)
if err != nil {
data, _ := ioutil.ReadFile(path)
t.Logf("Data from file : %s", string(data[:]))
t.Fatal(err)
}
expected := []Mount{
{
Source: source,
Destination: dest,
Type: mntType,
Options: []string{"rw"},
HostPath: hostPath,
},
}
if reflect.DeepEqual(data, expected) == false {
t.Fatalf("Expected : [%v]\n, Got : [%v]\n", expected, data)
}
}
func TestFilesystemFetchContainerMountsInvalidType(t *testing.T) {
fs := &filesystem{}
contID := "100"
contMountsDir := filepath.Join(runStoragePath, testSandboxID, contID)
os.MkdirAll(contMountsDir, dirMode)
path := filepath.Join(contMountsDir, mountsFile)
os.Remove(path)
f, err := os.Create(path)
if err != nil {
t.Fatal(err)
}
configData := fmt.Sprintf("{\"ID\":\"%s\",\"RootFs\":\"rootfs\"}", contID)
n, err := f.WriteString(configData)
if err != nil || n != len(configData) {
f.Close()
t.Fatal(err)
}
f.Close()
_, err = fs.fetchContainerMounts(testSandboxID, contID)
if err == nil {
t.Fatal()
}
}
func TestFilesystemFetchContainerMountsFailingContIDEmpty(t *testing.T) {
fs := &filesystem{}
_, err := fs.fetchContainerMounts(testSandboxID, "")
if err == nil {
t.Fatal()
}
}
func TestFilesystemFetchContainerMountsFailingSandboxIDEmpty(t *testing.T) {
fs := &filesystem{}
_, err := fs.fetchContainerMounts("", "100")
if err == nil {
t.Fatal()
}
}
func TestFilesystemResourceDirFailingSandboxIDEmpty(t *testing.T) {
for _, b := range []bool{true, false} {
_, err := resourceDir(b, "", "", configFileType)
if err == nil {
t.Fatal()
}
}
}
func TestFilesystemResourceDirFailingInvalidResource(t *testing.T) {
for _, b := range []bool{true, false} {
_, err := resourceDir(b, testSandboxID, "100", sandboxResource(-1))
if err == nil {
t.Fatal()
}
}
}
func TestFilesystemResourceURIFailingResourceDir(t *testing.T) {
fs := &filesystem{}
for _, b := range []bool{true, false} {
_, _, err := fs.resourceURI(b, testSandboxID, "100", sandboxResource(-1))
if err == nil {
t.Fatal()
}
}
}
func TestFilesystemStoreResourceFailingSandboxConfigStateFileType(t *testing.T) {
fs := &filesystem{}
data := SandboxConfig{}
for _, b := range []bool{true, false} {
err := fs.storeResource(b, testSandboxID, "100", stateFileType, data)
if err == nil {
t.Fatal()
}
}
}
func TestFilesystemStoreResourceFailingContainerConfigStateFileType(t *testing.T) {
fs := &filesystem{}
data := ContainerConfig{}
for _, b := range []bool{true, false} {
err := fs.storeResource(b, testSandboxID, "100", stateFileType, data)
if err == nil {
t.Fatal()
}
}
}
func TestFilesystemStoreResourceFailingSandboxConfigResourceURI(t *testing.T) {
fs := &filesystem{}
data := SandboxConfig{}
for _, b := range []bool{true, false} {
err := fs.storeResource(b, "", "100", configFileType, data)
if err == nil {
t.Fatal()
}
}
}
func TestFilesystemStoreResourceFailingContainerConfigResourceURI(t *testing.T) {
fs := &filesystem{}
data := ContainerConfig{}
for _, b := range []bool{true, false} {
err := fs.storeResource(b, "", "100", configFileType, data)
if err == nil {
t.Fatal()
}
}
}
func TestFilesystemStoreResourceFailingStateConfigFileType(t *testing.T) {
fs := &filesystem{}
data := State{}
for _, b := range []bool{true, false} {
err := fs.storeResource(b, testSandboxID, "100", configFileType, data)
if err == nil {
t.Fatal()
}
}
}
func TestFilesystemStoreResourceFailingStateResourceURI(t *testing.T) {
fs := &filesystem{}
data := State{}
for _, b := range []bool{true, false} {
err := fs.storeResource(b, "", "100", stateFileType, data)
if err == nil {
t.Fatal()
}
}
}
func TestFilesystemStoreResourceFailingWrongDataType(t *testing.T) {
fs := &filesystem{}
data := TestNoopStructure{}
for _, b := range []bool{true, false} {
err := fs.storeResource(b, testSandboxID, "100", configFileType, data)
if err == nil {
t.Fatal()
}
}
}
func TestFilesystemFetchResourceFailingWrongResourceType(t *testing.T) {
fs := &filesystem{}
for _, b := range []bool{true, false} {
if err := fs.fetchResource(b, testSandboxID, "100", lockFileType, nil); err == nil {
t.Fatal()
}
}
}