You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: retry_interceptor_test.go
    path of file: ./repos/etcd/client/v3
    
    the code of the file until where you have to start completion: // Copyright 2022 The etcd Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package clientv3

import (
	"testing"

	grpccredentials "google.golang.org/grpc/credentials"

	"go.etcd.io/etcd/api/v3/v3rpc/rpctypes"
	"go.etcd.io/etcd/client/v3/credentials"
)

type dummyAuthTokenBundle struct{}

func (d dummyAuthTokenBundle) PerRPCCredentials() grpccredentials.PerRPCCredentials {
	return nil
}

func (d dummyAuthTokenBundle) Upda
    
func TestClientShouldRefreshToken(t *testing.T) {
	type fields struct {
		authTokenBundle credentials.PerRPCCredentialsBundle
	}
	type args struct {
		err      error
		callOpts *options
	}

	optsWithTrue := &options{
		retryAuth: true,
	}
	optsWithFalse := &options{
		retryAuth: false,
	}

	tests := []struct {
		name   string
		fields fields
		args   args
		want   bool
	}{
		{
			name: "ErrUserEmpty and non nil authTokenBundle",
			fields: fields{
				authTokenBundle: &dummyAuthTokenBundle{},
			},
			args: args{rpctypes.ErrGRPCUserEmpty, optsWithTrue},
			want: true,
		},
		{
			name: "ErrUserEmpty and nil authTokenBundle",
			fields: fields{
				authTokenBundle: nil,
			},
			args: args{rpctypes.ErrGRPCUserEmpty, optsWithTrue},
			want: false,
		},
		{
			name: "ErrGRPCInvalidAuthToken and retryAuth",
			fields: fields{
				authTokenBundle: nil,
			},
			args: args{rpctypes.ErrGRPCInvalidAuthToken, optsWithTrue},
			want: true,
		},
		{
			name: "ErrGRPCInvalidAuthToken and !retryAuth",
			fields: fields{
				authTokenBundle: nil,
			},
			args: args{rpctypes.ErrGRPCInvalidAuthToken, optsWithFalse},
			want: false,
		},
		{
			name: "ErrGRPCAuthOldRevision and retryAuth",
			fields: fields{
				authTokenBundle: nil,
			},
			args: args{rpctypes.ErrGRPCAuthOldRevision, optsWithTrue},
			want: true,
		},
		{
			name: "ErrGRPCAuthOldRevision and !retryAuth",
			fields: fields{
				authTokenBundle: nil,
			},
			args: args{rpctypes.ErrGRPCAuthOldRevision, optsWithFalse},
			want: false,
		},
		{
			name: "Other error and retryAuth",
			fields: fields{
				authTokenBundle: nil,
			},
			args: args{rpctypes.ErrGRPCAuthFailed, optsWithTrue},
			want: false,
		},
		{
			name: "Other error and !retryAuth",
			fields: fields{
				authTokenBundle: nil,
			},
			args: args{rpctypes.ErrGRPCAuthFailed, optsWithFalse},
			want: false,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			c := &Client{
				authTokenBundle: tt.fields.authTokenBundle,
			}
			if got := c.shouldRefreshToken(tt.args.err, tt.args.callOpts); got != tt.want {
				t.Errorf("shouldRefreshToken() = %v, want %v", got, tt.want)
			}
		})
	}
}