type InvalidETag struct{}

func (e InvalidETag) Error() string {
	return "etag of the object has changed"
}

// BackendDown is returned for network errors
type BackendDown struct {
	Err string
}

func (e BackendDown) Error() string {
	return e.Err
}

// NotImplemented If a feature is not implemented
type NotImplemented struct {
	Message string
}

	if field, ok := schema.FieldsByDBName[namerColumnName]; ok {
		return field
	}

	return nil
}

// LookUpFieldByBindName looks for the closest field in the embedded struct.
//
//	type Struct struct {
//		Embedded struct {
//			ID string // is selected by LookUpFieldByBindName([]string{"Embedded", "ID"}, "ID")
//		}
//		ID string // is selected by LookUpFieldByBindName([]string{"ID"}, "ID")
//	}

// KeyVal - appended to ReqInfo.Tags
type KeyVal struct {
	Key string
	Val string
}

// ObjectVersion object version key/versionId
type ObjectVersion struct {
	ObjectName string
	VersionID  string `json:"VersionId,omitempty"`
}

// ReqInfo stores the request info.
// Reading/writing directly to struct requires appropriate R/W lock.
type ReqInfo struct {
	RemoteHost   string           // Client Host/IP

type dataUsageCacheV2 struct {
	Info  dataUsageCacheInfo
	Cache map[string]dataUsageEntryV2
}

// dataUsageCacheV3 contains a cache of data usage entries version 3.
type dataUsageCacheV3 struct {
	Info  dataUsageCacheInfo
	Cache map[string]dataUsageEntryV3
}

// dataUsageCacheV4 contains a cache of data usage entries version 4.
type dataUsageCacheV4 struct {
	Info  dataUsageCacheInfo

					if association.Relationship.Field.FieldType.Kind() == reflect.Struct {
						assignBacks = append(assignBacks, assignBack{Source: source, Dest: rv.Index(0)})
					}
				}
			case reflect.Struct:
				if !rv.CanAddr() {
					association.Error = ErrInvalidValue
					return
				}

	// form http://localhost:8181/v1/data/httpapi/authz
	type opaResultAllow struct {
		Result struct {
			Allow bool `json:"allow"`
		} `json:"result"`
	}

	// Handle simpler OPA responses when OPA URL is of
	// form http://localhost:8181/v1/data/httpapi/authz/allow
	type opaResult struct {
		Result bool `json:"result"`
	}

	respBody := bytes.NewReader(opaRespBytes)

	"github.com/minio/minio/internal/bucket/lifecycle"
	xhttp "github.com/minio/minio/internal/http"
)

// TestParseRestoreObjStatus tests parseRestoreObjStatus
func TestParseRestoreObjStatus(t *testing.T) {
	testCases := []struct {
		restoreHdr     string
		expectedStatus restoreObjStatus
		expectedErr    error
	}{
		{
			// valid: represents a restored object, 'pending' expiry.

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

package event

import (
	"encoding/xml"
	"reflect"
	"testing"
)

func TestARNString(t *testing.T) {
	testCases := []struct {
		arn            ARN
		expectedResult string
	}{
		{ARN{}, ""},
		{ARN{TargetID{"1", "webhook"}, ""}, "arn:minio:sqs::1:webhook"},
		{ARN{TargetID{"1", "webhook"}, "us-east-1"}, "arn:minio:sqs:us-east-1:1:webhook"},

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

package event

import (
	"reflect"
	"testing"
)

func TestNewPattern(t *testing.T) {
	testCases := []struct {
		prefix         string
		suffix         string
		expectedResult string
	}{
		{"", "", ""},
		{"*", "", "*"},
		{"", "*", "*"},
		{"images/", "", "images/*"},
		{"images/*", "", "images/*"},

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

package storageclass

import (
	"errors"
	"reflect"
	"testing"
)

func TestParseStorageClass(t *testing.T) {
	tests := []struct {
		storageClassEnv string
		wantSc          StorageClass
		expectedError   error
	}{
		{
			"EC:3",
			StorageClass{
				Parity: 3,
			},
			nil,
		},
		{
			"EC:4",
			StorageClass{