focus/priority_queue/vbt_test.go
eson 368447c31d new file: .gitignore
new file:   LICENSE
new file:   README.md
new file:   compare/compare.go
new file:   for_test.go
new file:   heap/heap.go
new file:   heap/heap_test.go
new file:   interface.go
new file:   lastack/lastack.go
new file:   lastack/lastack_test.go
new file:   list/list.go
new file:   list/list_test.go
new file:   map/hashmap/hashmap.go
new file:   map/hashmap/hashmap_test.go
new file:   priority_list/iterator.go
new file:   priority_list/priority_list.go
new file:   priority_list/priority_list_test.go
new file:   priority_queue/iterator.go
new file:   priority_queue/priority_queue.go
new file:   priority_queue/priority_queue_test.go
new file:   priority_queue/vbt.go
new file:   priority_queue/vbt_test.go
new file:   priority_queuekey/iterator.go
new file:   priority_queuekey/priority_queuekey.go
new file:   priority_queuekey/priority_queuekey_test.go
new file:   priority_queuekey/vbt.go
new file:   priority_queuekey/vbt_test.go
new file:   set/hashset/hashset.go
new file:   set/hashset/hashset_test.go
new file:   set/treeset/treeset.go
new file:   set/treeset/treeset_test.go
new file:   sparse_array/array2/array2.go
new file:   sparse_array/array2/array2_test.go
new file:   sparse_array/array3/array3.go
new file:   sparse_array/array3/array3_test.go
new file:   sparse_array/arrayn/arrayn.go
new file:   sparse_array/arrayn/arrayn_test.go
new file:   stack/stack.go
new file:   stack/stack_test.go
new file:   tree/avl/avl.go
new file:   tree/avl/avl_test.go
new file:   tree/avl/iterator.go
new file:   tree/avldup/avldup.go
new file:   tree/avldup/avldup_test.go
new file:   tree/avldup/iterator.go
new file:   tree/avlkey/avlkey.go
new file:   tree/avlkey/avlkey_test.go
new file:   tree/avlkey/iterator.go
new file:   tree/avlkeydup/avlkeydup.go
new file:   tree/avlkeydup/avlkeydup_test.go
new file:   tree/avlkeydup/iterator.go
new file:   tree/vbt/iterator.go
new file:   tree/vbt/vbt.go
new file:   tree/vbt/vbt_test.go
new file:   tree/vbtkey/iterator.go
new file:   tree/vbtkey/vbtkey.go
new file:   tree/vbtkey/vbtkey_test.go
2019-05-08 10:42:51 +08:00

657 lines
12 KiB
Go

package pqueue
import (
"bytes"
"encoding/gob"
"io/ioutil"
"log"
"testing"
"474420502.top/eson/structure/compare"
"github.com/huandu/skiplist"
"github.com/Pallinder/go-randomdata"
"github.com/davecgh/go-spew/spew"
"github.com/emirpasic/gods/trees/avltree"
"github.com/emirpasic/gods/trees/redblacktree"
)
func loadTestData() []int {
data, err := ioutil.ReadFile("../l.log")
if err != nil {
log.Println(err)
}
var l []int
decoder := gob.NewDecoder(bytes.NewReader(data))
decoder.Decode(&l)
return l
}
func TestIndexRange(t *testing.T) {
tree := newVBT(compare.Int)
l := []int{7, 14, 14, 14, 16, 17, 20, 30, 21, 40, 50, 3, 40, 40, 40, 15}
for _, v := range l {
tree.Put(v)
}
// [3 7 14 14 14 15 16 17 20 21 30 40 40 40 40 50]
// t.Error(tree.Values(), tree.Size())
var result string
result = spew.Sprint(tree.IndexRange(0, 5))
if result != "[50 40 40 40 40 30] true" {
t.Error(result)
}
result = spew.Sprint(tree.IndexRange(2, 5))
if result != "[40 40 40 30] true" {
t.Error(result)
}
result = spew.Sprint(tree.IndexRange(10, 100))
if result != "[15 14 14 14 7 3] false" {
t.Error(result)
}
result = spew.Sprint(tree.IndexRange(15, 0)) // size = 16, index max = 15
if result != "[3 7 14 14 14 15 16 17 20 21 30 40 40 40 40 50] true" {
t.Error(result)
}
result = spew.Sprint(tree.IndexRange(16, 0)) // size = 16, index max = 15
if result != "[3 7 14 14 14 15 16 17 20 21 30 40 40 40 40 50] false" {
t.Error(result)
}
result = spew.Sprint(tree.IndexRange(5, 1)) // size = 16, index max = 15
if result != "[30 40 40 40 40] true" {
t.Error(result)
}
result = spew.Sprint(tree.IndexRange(-1, -5)) // size = 16, index max = 15
if result != "[3 7 14 14 14] true" {
t.Error(result)
}
result = spew.Sprint(tree.IndexRange(-1, -16)) // size = 16, index max = 0 - 15 (-1,-16)
if result != "[3 7 14 14 14 15 16 17 20 21 30 40 40 40 40 50] true" {
t.Error(result)
}
result = spew.Sprint(tree.IndexRange(-1, -17)) // size = 16, index max = 0 - 15 (-1,-16)
if result != "[3 7 14 14 14 15 16 17 20 21 30 40 40 40 40 50] false" {
t.Error(result)
}
result = spew.Sprint(tree.IndexRange(-5, -1)) // size = 16, index max = 0 - 15 (-1,-16)
if result != "[14 14 14 7 3] true" {
t.Error(result)
}
}
func TestGetAround(t *testing.T) {
tree := newVBT(compare.Int)
for _, v := range []int{7, 14, 14, 14, 16, 17, 20, 30, 21, 40, 50, 3, 40, 40, 40, 15} {
tree.Put(v)
}
var Result string
Result = spew.Sprint(tree.GetAround(17))
if Result != "[16 17 20]" {
t.Error(tree.Values())
t.Error("17 is root, tree.GetAround(17)) is error", Result)
t.Error(tree.debugString())
}
Result = spew.Sprint(tree.GetAround(3))
if Result != "[<nil> 3 7]" {
t.Error(tree.Values())
t.Error("tree.GetAround(3)) is error", Result)
t.Error(tree.debugString())
}
Result = spew.Sprint(tree.GetAround(40))
if Result != "[30 40 40]" {
t.Error(tree.Values())
t.Error("tree.GetAround(40)) is error", Result)
t.Error(tree.debugString())
}
Result = spew.Sprint(tree.GetAround(50))
if Result != "[40 50 <nil>]" {
t.Error(tree.Values())
t.Error("tree.GetAround(50)) is error", Result)
t.Error(tree.debugString())
}
Result = spew.Sprint(tree.GetAround(18))
if Result != "[17 <nil> 20]" {
t.Error(tree.Values())
t.Error("18 is not in list, tree.GetAround(18)) is error", Result)
t.Error(tree.debugString())
}
Result = spew.Sprint(tree.GetAround(5))
if Result != "[3 <nil> 7]" {
t.Error(tree.Values())
t.Error("5 is not in list, tree.GetAround(5)) is error", Result)
t.Error(tree.debugString())
}
Result = spew.Sprint(tree.GetAround(2))
if Result != "[<nil> <nil> 3]" {
t.Error(tree.Values())
t.Error("2 is not in list, tree.GetAround(2)) is error", Result)
t.Error(tree.debugString())
}
Result = spew.Sprint(tree.GetAround(100))
if Result != "[50 <nil> <nil>]" {
t.Error(tree.Values())
t.Error("50 is not in list, tree.GetAround(50)) is error", Result)
t.Error(tree.debugString())
}
}
// // for test error case
func TestPutStable(t *testing.T) {
// tree := newVBT(compare.Int)
// for i := 0; i < 40; i++ {
// v := randomdata.Number(0, 100)
// tree.Put(v)
// t.Error(tree.top, v)
// // t.Error(i, v)
// // t.Error(tree.debugString())
// }
// for i := 0; i < 40; i++ {
// v, _ := tree.Index(0)
// tree.RemoveIndex(0)
// t.Error(i, v)
// if tree.top != nil {
// t.Error(tree.top)
// }
// }
}
func TestPutComparatorRandom(t *testing.T) {
for n := 0; n < 30000; n++ {
tree := newVBT(compare.Int)
godsavl := avltree.NewWithIntComparator()
content := ""
m := make(map[int]int)
for i := 0; len(m) < 50; i++ {
v := randomdata.Number(0, 65535)
if _, ok := m[v]; !ok {
m[v] = v
content += spew.Sprint(v) + ","
tree.Put(v)
godsavl.Put(v, v)
}
}
s1 := spew.Sprint(tree.Values())
s2 := spew.Sprint(godsavl.Values())
if s1 != s2 {
t.Error(godsavl.String())
t.Error(tree.debugString())
t.Error(content, n)
break
}
}
}
func TestGet(t *testing.T) {
tree := newVBT(compare.Int)
for _, v := range []int{2383, 7666, 3055, 39016, 57092, 27897, 36513, 1562, 22574, 23202} {
tree.Put(v)
}
for _, v := range []int{2383, 7666, 3055, 39016, 57092, 27897, 36513, 1562, 22574, 23202} {
v, ok := tree.Get(v)
if !ok {
t.Error("the val not found ", v)
}
}
if v, ok := tree.Get(10000); ok {
t.Error("the val(1000) is not in tree, but is found", v)
}
}
func TestGetRange(t *testing.T) {
tree := newVBT(compare.Int)
for _, v := range []int{5, 6, 8, 10, 13, 17, 1, 2, 40, 30} {
tree.Put(v)
}
// t.Error(tree.debugString())
// t.Error(tree.getArountNode(20))
// t.Error(tree.Values())
result := tree.GetRange(0, 20)
if spew.Sprint(result) != "[1 2 5 6 8 10 13 17]" {
t.Error(result)
}
result = tree.GetRange(-5, -1)
if spew.Sprint(result) != "[]" {
t.Error(result)
}
result = tree.GetRange(7, 20)
if spew.Sprint(result) != "[8 10 13 17]" {
t.Error(result)
}
result = tree.GetRange(30, 40)
if spew.Sprint(result) != "[30 40]" {
t.Error(result)
}
result = tree.GetRange(30, 60)
if spew.Sprint(result) != "[30 40]" {
t.Error(result)
}
result = tree.GetRange(40, 40)
if spew.Sprint(result) != "[40]" {
t.Error(result)
}
result = tree.GetRange(50, 60)
if spew.Sprint(result) != "[]" {
t.Error(result)
}
result = tree.GetRange(50, 1)
if spew.Sprint(result) != "[40 30 17 13 10 8 6 5 2 1]" {
t.Error(result)
}
result = tree.GetRange(30, 20)
if spew.Sprint(result) != "[30]" {
t.Error(result)
}
}
func TestTravalsal(t *testing.T) {
tree := newVBT(compare.Int)
for _, v := range []int{5, 6, 8, 10, 13, 17, 1, 2, 40, 30} {
tree.Put(v)
}
i := 0
var result []interface{}
tree.Traversal(func(v interface{}) bool {
result = append(result, v)
i++
if i >= 10 {
return false
}
return true
})
if spew.Sprint(result) != "[1 2 5 6 8 10 13 17 30 40]" {
t.Error(result)
}
}
func TestRemoveAll(t *testing.T) {
ALL:
for c := 0; c < 20000; c++ {
tree := newVBT(compare.Int)
gods := avltree.NewWithIntComparator()
var l []int
m := make(map[int]int)
for i := 0; len(l) < 50; i++ {
v := randomdata.Number(0, 65535)
if _, ok := m[v]; !ok {
m[v] = v
l = append(l, v)
tree.Put(v)
gods.Put(v, v)
}
}
for i := 0; i < 50; i++ {
tree.Remove(l[i])
gods.Remove(l[i])
s1 := spew.Sprint(tree.Values())
s2 := spew.Sprint(gods.Values())
if s1 != s2 {
t.Error("avl remove error", "avlsize = ", tree.Size())
t.Error(tree.root, i, l[i])
t.Error(s1)
t.Error(s2)
break ALL
}
}
}
}
func TestRemove(t *testing.T) {
ALL:
for N := 0; N < 5000; N++ {
tree := newVBT(compare.Int)
gods := avltree.NewWithIntComparator()
var l []int
m := make(map[int]int)
for i := 0; len(l) < 20; i++ {
v := randomdata.Number(0, 100)
if _, ok := m[v]; !ok {
l = append(l, v)
m[v] = v
tree.Put(v)
gods.Put(v, v)
}
}
src1 := tree.String()
src2 := gods.String()
for i := 0; i < 20; i++ {
tree.Remove(l[i])
gods.Remove(l[i])
if tree.root != nil && spew.Sprint(gods.Values()) != spew.Sprint(tree.Values()) {
t.Error(src1)
t.Error(src2)
t.Error(tree.debugString())
t.Error(gods.String())
t.Error(l[i])
break ALL
}
}
}
}
func BenchmarkSkipListGet(b *testing.B) {
sl := skiplist.New(skiplist.Int)
l := loadTestData()
b.N = len(l)
for _, v := range l {
sl.Set(v, v)
}
b.ResetTimer()
b.StartTimer()
execCount := 5
b.N = len(l) * execCount
for i := 0; i < execCount; i++ {
for _, v := range l {
e := sl.Get(v)
var result [50]interface{}
for i := 0; i < 50 && e != nil; i++ {
result[i] = e.Value
e = e.Next()
}
}
}
}
func BenchmarkGetRange(b *testing.B) {
}
func BenchmarkIndexRange(b *testing.B) {
tree := newVBT(compare.Int)
l := loadTestData()
b.N = len(l)
for _, v := range l {
tree.Put(v)
}
b.ResetTimer()
b.StartTimer()
execCount := 5
b.N = len(l) * execCount
for i := 0; i < execCount; i++ {
for range l {
tree.IndexRange(i, i+49)
}
}
}
func BenchmarkSkipListSet(b *testing.B) {
l := loadTestData()
execCount := 1
b.N = len(l) * execCount
for i := 0; i < execCount; i++ {
sl := skiplist.New(skiplist.Int)
for _, v := range l {
sl.Set(v, v)
}
}
}
func BenchmarkIterator(b *testing.B) {
tree := newVBT(compare.Int)
l := loadTestData()
b.N = len(l)
for _, v := range l {
tree.Put(v)
}
b.ResetTimer()
b.StartTimer()
iter := tree.Iterator()
b.N = 0
for iter.Next() {
b.N++
}
for iter.Prev() {
b.N++
}
for iter.Next() {
b.N++
}
b.Log(b.N, len(l))
}
func BenchmarkRemove(b *testing.B) {
tree := newVBT(compare.Int)
l := loadTestData()
b.N = len(l)
for _, v := range l {
tree.Put(v)
}
b.ResetTimer()
b.StartTimer()
for i := 0; i < len(l); i++ {
tree.Remove(l[i])
}
}
func BenchmarkGodsRemove(b *testing.B) {
tree := avltree.NewWithIntComparator()
l := loadTestData()
b.N = len(l)
for _, v := range l {
tree.Put(v, v)
}
b.ResetTimer()
b.StartTimer()
for i := 0; i < len(l); i++ {
tree.Remove(l[i])
}
}
func BenchmarkGodsRBRemove(b *testing.B) {
tree := redblacktree.NewWithIntComparator()
l := loadTestData()
b.N = len(l)
for _, v := range l {
tree.Put(v, v)
}
b.ResetTimer()
b.StartTimer()
for i := 0; i < len(l); i++ {
tree.Remove(l[i])
}
}
func BenchmarkGet(b *testing.B) {
tree := newVBT(compare.Int)
l := loadTestData()
b.N = len(l)
for i := 0; i < b.N; i++ {
tree.Put(l[i])
}
b.ResetTimer()
b.StartTimer()
execCount := 5
b.N = len(l) * execCount
for i := 0; i < execCount; i++ {
for _, v := range l {
tree.Get(v)
}
}
}
func BenchmarkGodsRBGet(b *testing.B) {
tree := redblacktree.NewWithIntComparator()
l := loadTestData()
b.N = len(l)
for i := 0; i < b.N; i++ {
tree.Put(l[i], i)
}
b.ResetTimer()
b.StartTimer()
execCount := 10
b.N = len(l) * execCount
for i := 0; i < execCount; i++ {
for _, v := range l {
tree.Get(v)
}
}
}
func BenchmarkGodsAvlGet(b *testing.B) {
tree := avltree.NewWithIntComparator()
l := loadTestData()
b.N = len(l)
for i := 0; i < b.N; i++ {
tree.Put(l[i], i)
}
b.ResetTimer()
b.StartTimer()
execCount := 10
b.N = len(l) * execCount
for i := 0; i < execCount; i++ {
for _, v := range l {
tree.Get(v)
}
}
}
func BenchmarkPut(b *testing.B) {
l := loadTestData()
b.ResetTimer()
b.StartTimer()
execCount := 50
b.N = len(l) * execCount
for i := 0; i < execCount; i++ {
tree := newVBT(compare.Int)
for _, v := range l {
tree.Put(v)
}
}
}
func BenchmarkIndex(b *testing.B) {
tree := newVBT(compare.Int)
l := loadTestData()
b.N = len(l)
for i := 0; i < b.N; i++ {
tree.Put(l[i])
}
b.ResetTimer()
b.StartTimer()
for i := 0; i < b.N; i++ {
tree.Index(i)
}
}
func BenchmarkGodsRBPut(b *testing.B) {
tree := redblacktree.NewWithIntComparator()
l := loadTestData()
b.ResetTimer()
b.StartTimer()
b.N = len(l)
for _, v := range l {
tree.Put(v, v)
}
}
func BenchmarkGodsPut(b *testing.B) {
tree := avltree.NewWithIntComparator()
l := loadTestData()
b.ResetTimer()
b.StartTimer()
b.N = len(l)
for _, v := range l {
tree.Put(v, v)
}
}