183 lines
2.6 KiB
Go
183 lines
2.6 KiB
Go
package heap
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import (
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"bytes"
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"encoding/gob"
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"io/ioutil"
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"log"
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"testing"
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"github.com/Pallinder/go-randomdata"
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"github.com/davecgh/go-spew/spew"
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"github.com/emirpasic/gods/trees/binaryheap"
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)
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func Int(k1, k2 interface{}) int {
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c1 := k1.(int)
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c2 := k2.(int)
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switch {
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case c1 > c2:
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return -1
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case c1 < c2:
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return 1
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default:
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return 0
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}
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}
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func TestPush(t *testing.T) {
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for i := 0; i < 1000000; i++ {
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h := New(Int)
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gods := binaryheap.NewWithIntComparator()
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for c := 0; c < 20; c++ {
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v := randomdata.Number(0, 100)
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h.Push(v)
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gods.Push(v)
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}
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r1 := spew.Sprint(h.Values())
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r2 := spew.Sprint(gods.Values())
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if r1 != r2 {
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t.Error(r1)
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t.Error(r2)
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break
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}
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}
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}
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func TestPop(t *testing.T) {
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for i := 0; i < 200000; i++ {
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h := New(Int)
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// m := make(map[int]int)
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gods := binaryheap.NewWithIntComparator()
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for c := 0; c < 40; c++ {
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v := randomdata.Number(0, 100)
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// if _, ok := m[v]; !ok {
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h.Push(v)
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gods.Push(v)
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// m[v] = v
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// }
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}
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// t.Error(h.Values())
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// t.Error(gods.Values())
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for c := 0; c < randomdata.Number(5, 10); c++ {
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v1, _ := h.Pop()
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v2, _ := gods.Pop()
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if v1 != v2 {
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t.Error(h.Values(), v1)
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t.Error(gods.Values(), v2)
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return
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}
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}
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r1 := spew.Sprint(h.Values())
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r2 := spew.Sprint(gods.Values())
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if r1 != r2 {
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t.Error(r1)
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t.Error(r2)
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break
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}
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}
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}
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func BenchmarkPush(b *testing.B) {
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l := loadTestData()
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b.ResetTimer()
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execCount := 50
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b.N = len(l) * execCount
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for c := 0; c < execCount; c++ {
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b.StopTimer()
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h := New(Int)
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b.StartTimer()
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for _, v := range l {
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h.Push(v)
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}
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}
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}
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func BenchmarkPop(b *testing.B) {
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h := New(Int)
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l := loadTestData()
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b.ResetTimer()
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execCount := 20
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b.N = len(l) * execCount
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for c := 0; c < execCount; c++ {
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b.StopTimer()
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for _, v := range l {
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h.Push(v)
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}
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b.StartTimer()
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for h.size != 0 {
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h.Pop()
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}
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}
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}
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func BenchmarkGodsPop(b *testing.B) {
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h := binaryheap.NewWithIntComparator()
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l := loadTestData()
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b.ResetTimer()
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execCount := 20
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b.N = len(l) * execCount
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for c := 0; c < execCount; c++ {
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b.StopTimer()
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for _, v := range l {
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h.Push(v)
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}
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b.StartTimer()
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for h.Size() != 0 {
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h.Pop()
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}
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}
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}
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func BenchmarkGodsPush(b *testing.B) {
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l := loadTestData()
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b.ResetTimer()
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execCount := 50
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b.N = len(l) * execCount
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for c := 0; c < execCount; c++ {
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b.StopTimer()
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h := binaryheap.NewWith(Int)
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b.StartTimer()
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for _, v := range l {
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h.Push(v)
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}
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}
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}
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func loadTestData() []int {
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data, err := ioutil.ReadFile("../l.log")
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if err != nil {
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log.Println(err)
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}
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var l []int
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decoder := gob.NewDecoder(bytes.NewReader(data))
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decoder.Decode(&l)
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return l
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}
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