// Copyright (c) 2015-2021 MinIO, Inc.//// This file is part of MinIO Object Storage stack//// This program is free software: you can redistribute it and/or modify// it under the terms of the GNU Affero General Public License as published by// the Free Software Foundation, either version 3 of the License, or// (at your option) any later version.//// This program is distributed in the hope that it will be useful// but WITHOUT ANY WARRANTY; without even the implied warranty of// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the// GNU Affero General Public License for more details.//// You should have received a copy of the GNU Affero General Public License// along with this program.  If not, see <http://www.gnu.org/licenses/>. package cmd import (	"context"	"errors"	"os"	"path/filepath"	"testing" 	"github.com/minio/minio/internal/crypto"	"github.com/minio/minio/internal/hash") var toAPIErrorTests = []struct {	err     error	errCode APIErrorCode}{	{err: hash.BadDigest{}, errCode: ErrBadDigest},	{err: hash.SHA256Mismatch{}, errCode: ErrContentSHA256Mismatch},	{err: IncompleteBody{}, errCode: ErrIncompleteBody},	{err: ObjectExistsAsDirectory{}, errCode: ErrObjectExistsAsDirectory},	{err: BucketNameInvalid{}, errCode: ErrInvalidBucketName},	{err: BucketExists{}, errCode: ErrBucketAlreadyOwnedByYou},	{err: ObjectNotFound{}, errCode: ErrNoSuchKey},	{err: ObjectNameInvalid{}, errCode: ErrInvalidObjectName},	{err: InvalidUploadID{}, errCode: ErrNoSuchUpload},	{err: InvalidPart{}, errCode: ErrInvalidPart},	{err: InsufficientReadQuorum{}, errCode: ErrSlowDown},	{err: InsufficientWriteQuorum{}, errCode: ErrSlowDown},	{err: InvalidMarkerPrefixCombination{}, errCode: ErrNotImplemented},	{err: InvalidUploadIDKeyCombination{}, errCode: ErrNotImplemented},	{err: MalformedUploadID{}, errCode: ErrNoSuchUpload},	{err: PartTooSmall{}, errCode: ErrEntityTooSmall},	{err: BucketNotEmpty{}, errCode: ErrBucketNotEmpty},	{err: BucketNotFound{}, errCode: ErrNoSuchBucket},	{err: StorageFull{}, errCode: ErrStorageFull},	{err: NotImplemented{}, errCode: ErrNotImplemented},	{err: errSignatureMismatch, errCode: ErrSignatureDoesNotMatch}, 	// SSE-C errors	{err: crypto.ErrInvalidCustomerAlgorithm, errCode: ErrInvalidSSECustomerAlgorithm},	{err: crypto.ErrMissingCustomerKey, errCode: ErrMissingSSECustomerKey},	{err: crypto.ErrInvalidCustomerKey, errCode: ErrAccessDenied},	{err: crypto.ErrMissingCustomerKeyMD5, errCode: ErrMissingSSECustomerKeyMD5},	{err: crypto.ErrCustomerKeyMD5Mismatch, errCode: ErrSSECustomerKeyMD5Mismatch},	{err: errObjectTampered, errCode: ErrObjectTampered}, 	{err: nil, errCode: ErrNone},	{err: errors.New("Custom error"), errCode: ErrInternalError}, // Case where err type is unknown.} func TestAPIErrCode(t *testing.T) {	disk := filepath.Join(globalTestTmpDir, "minio-"+nextSuffix())	defer os.RemoveAll(disk) 	initFSObjects(disk, t) 	ctx := context.Background()	for i, testCase := range toAPIErrorTests {		errCode := toAPIErrorCode(ctx, testCase.err)		if errCode != testCase.errCode {			t.Errorf("Test %d: Expected error code %d, got %d", i+1, testCase.errCode, errCode)		}	}}