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: index_test.go
    path of file: ./repos/tidb/pkg/util/dbutil
    
    the code of the file until where you have to start completion: // Copyright 2022 PingCAP, Inc.
//
// 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 dbutil

import (
	"testing"

	"github.com/pingcap/tidb/pkg/parser"
	"github.com/stretchr/testify/require"
)

func TestIndex(t *testing.T) {
	testCases := []struct {
		sql     string
		indices []string
		cols    []s
    
func TestIndex(t *testing.T) {
	testCases := []struct {
		sql     string
		indices []string
		cols    []string
	}{
		{
			`
 			CREATE TABLE itest (a int(11) NOT NULL,
 			b double NOT NULL DEFAULT '2',
 			c varchar(10) NOT NULL,
 			d time DEFAULT NULL,
 			PRIMARY KEY (a, b),
 			UNIQUE KEY d(d))
 			`,
			[]string{"PRIMARY", "d"},
			[]string{"a", "b", "d"},
		}, {
			`
 			CREATE TABLE jtest (
 				a int(11) NOT NULL,
 				b varchar(10) DEFAULT NULL,
 				c varchar(255) DEFAULT NULL,
 				KEY c(c),
 				UNIQUE KEY b(b, c),
 				PRIMARY KEY (a)
 			) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_bin
 			`,
			[]string{"PRIMARY", "b", "c"},
			[]string{"a", "b", "c"},
		}, {
			`
 			CREATE TABLE mtest (
 				a int(24),
 				KEY test (a))
 			`,
			[]string{"test"},
			[]string{"a"},
		},
		{
			`
 			CREATE TABLE mtest (
				a int(24),
				b int(24),
				KEY test1 (a),
				KEY test2 (b))
 			`,
			[]string{"test1", "test2"},
			[]string{"a", "b"},
		},
		{
			`
 			CREATE TABLE mtest (
				a int(24),
				b int(24),
				UNIQUE KEY test1 (a),
				UNIQUE KEY test2 (b))
 			`,
			[]string{"test1", "test2"},
			[]string{"a", "b"},
		},
	}

	for _, testCase := range testCases {
		tableInfo, err := GetTableInfoBySQL(testCase.sql, parser.New())
		require.NoError(t, err)

		indices := FindAllIndex(tableInfo)
		for i, index := range indices {
			require.Equal(t, testCase.indices[i], index.Name.O)
		}

		cols := FindAllColumnWithIndex(tableInfo)
		for j, col := range cols {
			require.Equal(t, testCase.cols[j], col.Name.O)
		}
	}
}