}
	}
	return apiErr
}

// toAdminAPIErrCode - converts errErasureWriteQuorum error to admin API
// specific error.
func toAdminAPIErrCode(ctx context.Context, err error) APIErrorCode {
	if errors.Is(err, errErasureWriteQuorum) {
		return ErrAdminConfigNoQuorum
	}
	return toAPIErrorCode(ctx, err)
}

// wraps export error for more context

func TestParseCredentialHeader(t *testing.T) {
	sampleTimeStr := UTCNow().Format(yyyymmdd)

	testCases := []struct {
		inputCredentialStr  string
		expectedCredentials credentialHeader
		expectedErrCode     APIErrorCode
	}{
		// Test Case - 1.
		// Test case with no '=' in te inputCredentialStr.
		{
			inputCredentialStr:  "Credential",
			expectedCredentials: credentialHeader{},
			expectedErrCode:     ErrMissingFields,

}

// check if the access key is valid and recognized, additionally
// also returns if the access key is owner/admin.
func checkKeyValid(r *http.Request, accessKey string) (auth.Credentials, bool, APIErrorCode) {
	cred := globalActiveCred
	if cred.AccessKey != accessKey {
		if !globalIAMSys.Initialized() {
			// Check if server has initialized, then only proceed
			// to check for IAM users otherwise its okay for clients

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"context"
	"fmt"
	"net/http"
	"net/url"
	"os"
	"testing"
	"time"
)

func niceError(code APIErrorCode) string {
	// Special-handle ErrNone
	if code == ErrNone {
		return "ErrNone"
	}

	return fmt.Sprintf("%s (%s)", errorCodes[code].Code, errorCodes[code].Description)
}

func checkPutObjectLockAllowed(ctx context.Context, rq *http.Request, bucket, object string, getObjectInfoFn GetObjectInfoFn, retentionPermErr, legalHoldPermErr APIErrorCode) (objectlock.RetMode, objectlock.RetentionDate, objectlock.ObjectLegalHold, APIErrorCode) {
	var mode objectlock.RetMode
	var retainDate objectlock.RetentionDate
	var legalHold objectlock.ObjectLegalHold

	globalIAMSys.Init(ctx, objLayer, globalEtcdClient, 2*time.Second)

	// List of test cases for validating http request authentication.
	testCases := []struct {
		req     *http.Request
		s3Error APIErrorCode
	}{
		// When request is unsigned, access denied is returned.
		{mustNewRequest(http.MethodGet, "http://127.0.0.1:9000", 0, nil, t), ErrAccessDenied},
		// Empty Content-Md5 header.

}

// APIErrorCode type of error status.
type APIErrorCode int

//go:generate stringer -type=APIErrorCode -trimprefix=Err $GOFILE

// Error codes, non exhaustive list - http://docs.aws.amazon.com/AmazonS3/latest/API/ErrorResponses.html
const (
	ErrNone APIErrorCode = iota
	ErrAccessDenied
	ErrBadDigest
	ErrEntityTooSmall
	ErrEntityTooLarge

// out of HTTP "chunked" format before returning it.
// The s3ChunkedReader returns io.EOF when the final 0-length chunk is read.
func newUnsignedV4ChunkedReader(req *http.Request, trailer bool) (io.ReadCloser, APIErrorCode) {
	if trailer {
		// Discard anything unsigned.
		req.Trailer = make(http.Header)
		trailers := req.Header.Values(awsTrailerHeader)
		for _, key := range trailers {
			req.Trailer.Add(key, "")
		}
	} else {

// error while parsing and validating.
func calculateSeedSignature(r *http.Request, trailers bool) (cred auth.Credentials, signature string, region string, date time.Time, errCode APIErrorCode) {
	// Copy request.
	req := *r

	// Save authorization header.
	v4Auth := req.Header.Get(xhttp.Authorization)

	// Parse signature version '4' header.

		req.ContentLength = int64(createBucketConfigBuffer.Len())
		return req
	}

	testCases := []struct {
		request            *http.Request
		serverConfigRegion string
		expectedCode       APIErrorCode
	}{
		// Test case - 1.
		{createExpectedRequest(&http.Request{}, "eu-central-1"), globalMinioDefaultRegion, ErrNone},
		// Test case - 2.
		// In case of empty request body ErrNone is returned.