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: session_iterate_test.go
    path of file: ./repos/xorm/integrations
    
    the code of the file until where you have to start completion: // Copyright 2017 The Xorm Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package integrations

import (
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestIterate(t *testing.T) {
	assert.NoError(t, PrepareEngine())

	type UserIterate struct {
		Id    int64
		IsMan bool
	}

	assert.NoError(t, testEngine.Sync2(new(UserIterate)))

	cnt, err := testEngine.Insert(&UserIterate{
		IsMan: true,
	})
	assert.NoError(t, err)
	assert.EqualValues(t, 1, cnt)

	cnt = 0
	err = testEngine.Iterate(new(UserIterate), func(i int, bean interface{}) error {
		user := bean.(*UserIterate)
		assert.EqualValues(t, 1, user.Id)
		assert.EqualValues(t, true, user.IsMan)
		cnt++
		return nil
	})
	assert.NoError(t, err)
	assert.EqualValues(t, 1, cnt)
}

func TestBufferIterate(t *testing.T) {
	assert.NoError(t, PrepareEngine())

	type UserBufferIterate struct {
		Id    int64
		IsMan bool
	}

	assert.NoError(t, testEngine.Sync2(new(UserBufferIterate)))

	var size = 20
	for i := 0; i < size; i++ {
		cnt, err := testEngine.Insert(&UserBufferIterate{
			IsMan: true,
		})
		assert.NoError(t, err)
		assert.EqualValues(t, 1, cnt)
	}

	var cnt = 0
	err := testEngine.BufferSize(9).I
    
func TestBufferIterate(t *testing.T) {
	assert.NoError(t, PrepareEngine())

	type UserBufferIterate struct {
		Id    int64
		IsMan bool
	}

	assert.NoError(t, testEngine.Sync2(new(UserBufferIterate)))

	var size = 20
	for i := 0; i < size; i++ {
		cnt, err := testEngine.Insert(&UserBufferIterate{
			IsMan: true,
		})
		assert.NoError(t, err)
		assert.EqualValues(t, 1, cnt)
	}

	var cnt = 0
	err := testEngine.BufferSize(9).Iterate(new(UserBufferIterate), func(i int, bean interface{}) error {
		user := bean.(*UserBufferIterate)
		assert.EqualValues(t, cnt+1, user.Id)
		assert.EqualValues(t, true, user.IsMan)
		cnt++
		return nil
	})
	assert.NoError(t, err)
	assert.EqualValues(t, size, cnt)

	cnt = 0
	err = testEngine.Limit(20).BufferSize(9).Iterate(new(UserBufferIterate), func(i int, bean interface{}) error {
		user := bean.(*UserBufferIterate)
		assert.EqualValues(t, cnt+1, user.Id)
		assert.EqualValues(t, true, user.IsMan)
		cnt++
		return nil
	})
	assert.NoError(t, err)
	assert.EqualValues(t, size, cnt)

	cnt = 0
	err = testEngine.Limit(7).BufferSize(9).Iterate(new(UserBufferIterate), func(i int, bean interface{}) error {
		user := bean.(*UserBufferIterate)
		assert.EqualValues(t, cnt+1, user.Id)
		assert.EqualValues(t, true, user.IsMan)
		cnt++
		return nil
	})
	assert.NoError(t, err)
	assert.EqualValues(t, 7, cnt)

	cnt = 0
	err = testEngine.Where("id <= 10").BufferSize(2).Iterate(new(UserBufferIterate), func(i int, bean interface{}) error {
		user := bean.(*UserBufferIterate)
		assert.EqualValues(t, cnt+1, user.Id)
		assert.EqualValues(t, true, user.IsMan)
		cnt++
		return nil
	})
	assert.NoError(t, err)
	assert.EqualValues(t, 10, cnt)
}