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g/container/gring/gring_unit_test.go
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229
g/container/gring/gring_unit_test.go
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package gring_test
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import (
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"container/ring"
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"github.com/gogf/gf/g"
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"github.com/gogf/gf/g/container/gring"
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"github.com/gogf/gf/g/test/gtest"
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"testing"
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)
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type Student struct {
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position int
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name string
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upgrade bool
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}
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func TestRing_Val(t *testing.T) {
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gtest.Case(t, func() {
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//定义cap 为3的ring类型数据
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r := gring.New(3, true)
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//分别给3个元素初始化赋值
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r.Put(&Student{1,"jimmy", true})
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r.Put(&Student{2,"tom", true})
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r.Put(&Student{3,"alon", false})
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//元素取值并判断和预设值是否相等
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gtest.Assert(r.Val().(*Student).name,"jimmy")
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//从当前位置往后移两个元素
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r.Move(2)
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gtest.Assert(r.Val().(*Student).name,"alon")
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//更新元素值
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//测试 value == nil
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r.Set(nil)
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gtest.Assert(r.Val(),nil)
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//测试value != nil
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r.Set(&Student{3, "jack", true})
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})
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}
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func TestRing_CapLen(t *testing.T) {
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gtest.Case(t, func() {
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r := gring.New(10)
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r.Put("goframe")
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//cap长度 10
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gtest.Assert(r.Cap(), 10)
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//已有数据项 1
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gtest.Assert(r.Len(), 1)
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})
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}
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func TestRing_Position(t *testing.T) {
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gtest.Case(t, func() {
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r := gring.New(2)
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r.Put(1)
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r.Put(2)
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//往后移动1个元素
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r.Next()
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gtest.Assert(r.Val(),2)
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//往前移动1个元素
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r.Prev()
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gtest.Assert(r.Val(),1)
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})
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}
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func TestRing_Link(t *testing.T) {
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gtest.Case(t, func() {
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r := gring.New(3)
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r.Put(1)
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r.Put(2)
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r.Put(3)
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s := gring.New(2)
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s.Put("a")
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s.Put("b")
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rs := r.Link(s)
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gtest.Assert(rs.Move(2).Val(), "b")
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})
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}
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func TestRing_Unlink(t *testing.T) {
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gtest.Case(t, func() {
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r := gring.New(5)
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for i := 0; i< 5; i++ {
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r.Put(i+1)
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}
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// 1 2 3 4
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// 删除当前位置往后的2个数据,返回被删除的数据
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// 重新计算s len
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s := r.Unlink(2) // 2 3
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gtest.Assert(s.Val(), 2)
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gtest.Assert(s.Len(), 1)
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})
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}
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func TestRing_Slice(t *testing.T) {
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gtest.Case(t, func() {
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ringLen := 5
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r := gring.New(ringLen)
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for i := 0; i< ringLen; i++ {
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r.Put(i+1)
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}
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r.Move(2) // 3
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array := r.SliceNext() // [3 4 5 1 2]
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gtest.Assert(array[0], 3)
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gtest.Assert(len(array), 5)
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//判断array是否等于[3 4 5 1 2]
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ra := []int{3,4,5,1,2}
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gtest.Assert(ra, array)
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//第3个元素设为nil
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r.Set(nil)
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array2 := r.SliceNext() //[4 5 1 2]
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//返回当前位置往后不为空的元素数组,长度为4
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gtest.Assert(array2, g.Slice{4,5,1,2})
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array3 := r.SlicePrev() //[2 1 5 4]
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gtest.Assert(array3, g.Slice{2,1,5,4})
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s := gring.New(ringLen)
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for i := 0; i< ringLen; i++ {
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s.Put(i+1)
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}
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array4 := s.SlicePrev() // []
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gtest.Assert(array4, g.Slice{1,5,4,3,2})
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})
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}
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func TestRing_RLockIterator(t *testing.T) {
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gtest.Case(t, func() {
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ringLen := 5
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r := gring.New(ringLen)
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//ring不存在有值元素
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r.RLockIteratorNext(func(v interface{}) bool {
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gtest.Assert(v, nil)
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return false
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})
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r.RLockIteratorNext(func(v interface{}) bool {
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gtest.Assert(v, nil)
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return true
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})
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r.RLockIteratorPrev(func(v interface{}) bool {
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gtest.Assert(v, nil)
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return true
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})
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for i := 0; i< ringLen; i++ {
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r.Put(i+1)
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}
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//回调函数返回true,RLockIteratorNext遍历5次,期望值分别是1、2、3、4、5
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i := 0
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r.RLockIteratorNext(func(v interface{}) bool {
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gtest.Assert(v, i+1)
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i++;
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return true
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})
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//RLockIteratorPrev遍历1次返回 false,退出遍历
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r.RLockIteratorPrev(func(v interface{}) bool {
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gtest.Assert(v, 1)
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return false
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})
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})
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}
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func TestRing_LockIterator(t *testing.T) {
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gtest.Case(t, func() {
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ringLen := 5
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r := gring.New(ringLen)
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//不存在有值元素
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r.LockIteratorNext(func(item *ring.Ring) bool {
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gtest.Assert(item.Value, nil)
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return false
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})
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r.LockIteratorNext(func(item *ring.Ring) bool {
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gtest.Assert(item.Value, nil)
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return false
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})
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r.LockIteratorNext(func(item *ring.Ring) bool {
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gtest.Assert(item.Value, nil)
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return true
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})
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r.LockIteratorPrev(func(item *ring.Ring) bool {
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gtest.Assert(item.Value, nil)
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return false
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})
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r.LockIteratorPrev(func(item *ring.Ring) bool {
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gtest.Assert(item.Value, nil)
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return true
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})
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//ring初始化元素值
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for i := 0; i< ringLen; i++ {
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r.Put(i+1)
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}
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//往后遍历组成数据 [1,2,3,4,5]
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array1 := g.Slice{1,2,3,4,5}
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ii := 0
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r.LockIteratorNext(func(item *ring.Ring) bool {
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//校验每一次遍历取值是否是期望值
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gtest.Assert(item.Value, array1[ii])
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ii++;
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return true
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})
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//往后取3个元素组成数组
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//获得 [1,5,4]
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i := 0
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a := g.Slice{1,5,4}
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r.LockIteratorPrev(func(item *ring.Ring) bool {
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if i > 2 {
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return false
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}
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gtest.Assert(item.Value, a[i])
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i++;
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return true
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})
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})
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}
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