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common.go
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common.go
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// Package tools provides common tools and utilities for all unit and integration tests
/*
* Copyright (c) 2018-2022, NVIDIA CORPORATION. All rights reserved.
*/
package tools
import (
"errors"
"fmt"
"net/http"
"net/url"
"os"
"path/filepath"
"strconv"
"strings"
"testing"
"github.com/artashesbalabekyan/aistore/api"
"github.com/artashesbalabekyan/aistore/api/apc"
"github.com/artashesbalabekyan/aistore/cluster"
"github.com/artashesbalabekyan/aistore/cluster/meta"
"github.com/artashesbalabekyan/aistore/cmn"
"github.com/artashesbalabekyan/aistore/cmn/cos"
"github.com/artashesbalabekyan/aistore/cmn/fname"
"github.com/artashesbalabekyan/aistore/tools/readers"
"github.com/artashesbalabekyan/aistore/tools/tassert"
"github.com/artashesbalabekyan/aistore/tools/trand"
)
// Generates an object name that hashes to a different target than `baseName`.
func GenerateNotConflictingObjectName(baseName, newNamePrefix string, bck cmn.Bck, smap *meta.Smap) string {
// Init digests - HrwTarget() requires it
smap.InitDigests()
newName := newNamePrefix
cbck := meta.CloneBck(&bck)
baseNameHrw, _ := cluster.HrwTarget(cbck.MakeUname(baseName), smap)
newNameHrw, _ := cluster.HrwTarget(cbck.MakeUname(newName), smap)
for i := 0; baseNameHrw == newNameHrw; i++ {
newName = newNamePrefix + strconv.Itoa(i)
newNameHrw, _ = cluster.HrwTarget(cbck.MakeUname(newName), smap)
}
return newName
}
func GenerateNonexistentBucketName(prefix string, bp api.BaseParams) (string, error) {
for i := 0; i < 100; i++ {
bck := cmn.Bck{
Name: prefix + trand.String(8),
Provider: apc.AIS,
}
_, err := api.HeadBucket(bp, bck, true /* don't add to cluster MD */)
if err == nil {
continue
}
errHTTP, ok := err.(*cmn.ErrHTTP)
if !ok {
return "",
fmt.Errorf("error generating bucket name: expected error of type *cmn.ErrHTTP, but got: %T", err)
}
if errHTTP.Status == http.StatusNotFound {
return bck.Name, nil
}
return "", fmt.Errorf("error generating bucket name: unexpected HEAD request error: %v", err)
}
return "", errors.New("error generating bucket name: too many tries gave no result")
}
func BucketsContain(bcks cmn.Bcks, qbck cmn.QueryBcks) bool {
for _, bck := range bcks {
if qbck.Equal(&bck) || qbck.Contains(&bck) {
return true
}
}
return false
}
func BucketExists(tb testing.TB, proxyURL string, bck cmn.Bck) (bool, error) {
if bck.IsQuery() {
if tb == nil {
return false, fmt.Errorf("expecting a named bucket, got %q", bck)
}
tassert.CheckFatal(tb, fmt.Errorf("expecting a named bucket, got %q", bck))
}
bp := api.BaseParams{Client: gctx.Client, URL: proxyURL, Token: LoggedUserToken}
_, err := api.HeadBucket(bp, bck, true /*dontAddRemote*/)
if err == nil {
return true, nil
}
errHTTP, ok := err.(*cmn.ErrHTTP)
if !ok {
err = fmt.Errorf("expected an error of the type *cmn.ErrHTTP, got %v(%T)", err, err)
if tb == nil {
return false, err
}
tassert.CheckFatal(tb, err)
}
if errHTTP.Status != http.StatusNotFound {
err = fmt.Errorf("tools.BucketExists: expected status 404 (NotFound), got [%s]", errHTTP.Message)
if tb != nil {
tassert.CheckFatal(tb, err)
} else {
cos.Exitf("%v", err)
}
}
return false, err
}
func isRemoteBucket(tb testing.TB, proxyURL string, bck cmn.Bck) bool {
if !bck.IsRemote() {
return false
}
exists, err := BucketExists(tb, proxyURL, bck)
tassert.CheckFatal(tb, err)
return exists
}
func isCloudBucket(tb testing.TB, proxyURL string, bck cmn.Bck) bool {
if !bck.IsCloud() {
return false
}
exists, err := BucketExists(tb, proxyURL, bck)
tassert.CheckFatal(tb, err)
return exists
}
func PutObjRR(bp api.BaseParams, bck cmn.Bck, objName string, objSize int64, cksumType string) error {
reader, err := readers.NewRandReader(objSize, cksumType)
if err != nil {
return err
}
putArgs := api.PutArgs{
BaseParams: bp,
Bck: bck,
ObjName: objName,
Cksum: reader.Cksum(),
Reader: reader,
}
_, err = api.PutObject(putArgs)
return err
}
func PutRR(tb testing.TB, bp api.BaseParams, objSize int64, cksumType string,
bck cmn.Bck, dir string, objCount int) []string {
objNames := make([]string, objCount)
for i := 0; i < objCount; i++ {
fname := trand.String(20)
objName := filepath.Join(dir, fname)
objNames[i] = objName
// FIXME: Separate RandReader per object created inside PutObjRR to workaround
// https://github.com/golang/go/issues/30597
err := PutObjRR(bp, bck, objName, objSize, cksumType)
tassert.CheckFatal(tb, err)
}
return objNames
}
func NewClientWithProxy(proxyURL string) *http.Client {
transport := cmn.NewTransport(transportArgs)
prxURL, _ := url.Parse(proxyURL)
transport.Proxy = http.ProxyURL(prxURL)
return &http.Client{
Transport: transport,
Timeout: transportArgs.Timeout,
}
}
func isClusterK8s() (isK8s bool, err error) {
// NOTE: The test suite doesn't have to be deployed on K8s, the cluster has to be.
_, err = api.ETLList(BaseAPIParams(GetPrimaryURL()))
isK8s = err == nil
// HACK: Check based on error message. Unfortunately, there is no relevant HTTP code.
if err != nil && strings.Contains(err.Error(), "requires Kubernetes") {
err = nil
}
return
}
func isClusterLocal() (isLocal bool, err error) {
var (
primaryURL = GetPrimaryURL()
smap *meta.Smap
bp = BaseAPIParams(primaryURL)
config *cmn.Config
fileData []byte
)
if smap, err = api.GetClusterMap(bp); err != nil {
return
}
if config, err = api.GetDaemonConfig(bp, smap.Primary); err != nil {
return
}
fileData, err = os.ReadFile(filepath.Join(config.ConfigDir, fname.ProxyID))
if err != nil {
if os.IsNotExist(err) {
err = nil
}
return
}
isLocal = strings.TrimSpace(string(fileData)) == smap.Primary.ID()
return
}