// Tests initializing new object layer.
func TestNewObjectLayer(t *testing.T) {
	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()
	// Tests for ErasureSD object layer.
	nDisks := 1
	disks, err := getRandomDisks(nDisks)
	if err != nil {
		t.Fatal("Failed to create drives for the backend")
	}
	defer removeRoots(disks)

	obj, err := newObjectLayer(ctx, mustGetPoolEndpoints(0, disks...))
	if err != nil {

	}
}

func TestShuffleDisks(t *testing.T) {
	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()

	nDisks := 16
	disks, err := getRandomDisks(nDisks)
	if err != nil {
		t.Fatal(err)
	}
	objLayer, _, err := initObjectLayer(ctx, mustGetPoolEndpoints(0, disks...))
	if err != nil {
		removeRoots(disks)
		t.Fatal(err)
	}

		globalStorageClass.Update(saveSC)
	}()
	globalStorageClass.Update(storageclass.Config{
		Standard: storageclass.StorageClass{
			Parity: 4,
		},
	})

	nDisks := 16
	fsDirs, err := getRandomDisks(nDisks)
	if err != nil {
		t.Fatal(err)
	}

	defer removeRoots(fsDirs)

	// Everything is fine, should return nil
	objLayer, _, err := initObjectLayer(ctx, mustGetPoolEndpoints(0, fsDirs...))

	"crypto/sha256"
	"encoding/hex"
	"encoding/json"
	"os"
	"reflect"
	"testing"
)

// tests fixFormatErasureV3 - fix format.json on all disks.
func TestFixFormatV3(t *testing.T) {
	erasureDirs, err := getRandomDisks(8)
	if err != nil {
		t.Fatal(err)
	}
	for _, erasureDir := range erasureDirs {
		defer os.RemoveAll(erasureDir)
	}
	endpoints := mustGetNewEndpoints(0, 8, erasureDirs...)

package cmd

import (
	"context"
	"testing"
)

func prepareErasurePools() (ObjectLayer, []string, error) {
	nDisks := 32
	fsDirs, err := getRandomDisks(nDisks)
	if err != nil {
		return nil, nil, err
	}

	pools := mustGetPoolEndpoints(0, fsDirs[:16]...)
	pools = append(pools, mustGetPoolEndpoints(1, fsDirs[16:]...)...)

}

// initTestObjLayer - Helper function to initialize an Erasure-based object
// layer and set globalObjectAPI.
func initTestErasureObjLayer(ctx context.Context) (ObjectLayer, []string, error) {
	erasureDirs, err := getRandomDisks(16)
	if err != nil {
		return nil, nil, err
	}
	endpoints := mustGetPoolEndpoints(0, erasureDirs...)
	globalPolicySys = NewPolicySys()
	objLayer, err := newErasureServerPools(ctx, endpoints)

	queryValue["suffix"] = suffixes
	queryValue["events"] = events
	return makeTestTargetURL(endPoint, bucketName, "", queryValue)
}

// getRandomDisks - Creates a slice of N random disks, each of the form - minio-XXX
func getRandomDisks(n int) ([]string, error) {
	var erasureDisks []string
	for i := 0; i < n; i++ {
		path, err := os.MkdirTemp(globalTestTmpDir, "minio-")
		if err != nil {