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gods/maps/treemap/treemap_test.go

639 lines
15 KiB
Go

// Copyright (c) 2015, Emir Pasic. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package treemap
import (
"fmt"
"testing"
"github.com/spewspews/gods/trees/avltree"
)
func TestMapPut(t *testing.T) {
m := NewWithIntComparator()
m.Put(5, "e")
m.Put(6, "f")
m.Put(7, "g")
m.Put(3, "c")
m.Put(4, "d")
m.Put(1, "x")
m.Put(2, "b")
m.Put(1, "a") //overwrite
if actualValue := m.Size(); actualValue != 7 {
t.Errorf("Got %v expected %v", actualValue, 7)
}
if actualValue, expectedValue := m.Keys(), []interface{}{1, 2, 3, 4, 5, 6, 7}; !sameElements(actualValue, expectedValue) {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
if actualValue, expectedValue := m.Values(), []interface{}{"a", "b", "c", "d", "e", "f", "g"}; !sameElements(actualValue, expectedValue) {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
// key,expectedValue,expectedFound
tests1 := [][]interface{}{
{1, "a", true},
{2, "b", true},
{3, "c", true},
{4, "d", true},
{5, "e", true},
{6, "f", true},
{7, "g", true},
{8, nil, false},
}
for _, test := range tests1 {
// retrievals
actualValue, actualFound := m.Get(test[0])
if actualValue != test[1] || actualFound != test[2] {
t.Errorf("Got %v expected %v", actualValue, test[1])
}
}
}
func TestMapAVLPut(t *testing.T) {
m := NewWithTree(avltree.NewWithIntComparator())
m.Put(5, "e")
m.Put(6, "f")
m.Put(7, "g")
m.Put(3, "c")
m.Put(4, "d")
m.Put(1, "x")
m.Put(2, "b")
m.Put(1, "a") //overwrite
if actualValue := m.Size(); actualValue != 7 {
t.Errorf("Got %v expected %v", actualValue, 7)
}
if actualValue, expectedValue := m.Keys(), []interface{}{1, 2, 3, 4, 5, 6, 7}; !sameElements(actualValue, expectedValue) {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
if actualValue, expectedValue := m.Values(), []interface{}{"a", "b", "c", "d", "e", "f", "g"}; !sameElements(actualValue, expectedValue) {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
// key,expectedValue,expectedFound
tests1 := [][]interface{}{
{1, "a", true},
{2, "b", true},
{3, "c", true},
{4, "d", true},
{5, "e", true},
{6, "f", true},
{7, "g", true},
{8, nil, false},
}
for _, test := range tests1 {
// retrievals
actualValue, actualFound := m.Get(test[0])
if actualValue != test[1] || actualFound != test[2] {
t.Errorf("Got %v expected %v", actualValue, test[1])
}
}
}
func TestMapRemove(t *testing.T) {
m := NewWithIntComparator()
m.Put(5, "e")
m.Put(6, "f")
m.Put(7, "g")
m.Put(3, "c")
m.Put(4, "d")
m.Put(1, "x")
m.Put(2, "b")
m.Put(1, "a") //overwrite
m.Remove(5)
m.Remove(6)
m.Remove(7)
m.Remove(8)
m.Remove(5)
if actualValue, expectedValue := m.Keys(), []interface{}{1, 2, 3, 4}; !sameElements(actualValue, expectedValue) {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
if actualValue, expectedValue := m.Values(), []interface{}{"a", "b", "c", "d"}; !sameElements(actualValue, expectedValue) {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
if actualValue := m.Size(); actualValue != 4 {
t.Errorf("Got %v expected %v", actualValue, 4)
}
tests2 := [][]interface{}{
{1, "a", true},
{2, "b", true},
{3, "c", true},
{4, "d", true},
{5, nil, false},
{6, nil, false},
{7, nil, false},
{8, nil, false},
}
for _, test := range tests2 {
actualValue, actualFound := m.Get(test[0])
if actualValue != test[1] || actualFound != test[2] {
t.Errorf("Got %v expected %v", actualValue, test[1])
}
}
m.Remove(1)
m.Remove(4)
m.Remove(2)
m.Remove(3)
m.Remove(2)
m.Remove(2)
if actualValue, expectedValue := fmt.Sprintf("%s", m.Keys()), "[]"; actualValue != expectedValue {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
if actualValue, expectedValue := fmt.Sprintf("%s", m.Values()), "[]"; actualValue != expectedValue {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
if actualValue := m.Size(); actualValue != 0 {
t.Errorf("Got %v expected %v", actualValue, 0)
}
if actualValue := m.Empty(); actualValue != true {
t.Errorf("Got %v expected %v", actualValue, true)
}
}
func sameElements(a []interface{}, b []interface{}) bool {
if len(a) != len(b) {
return false
}
for _, av := range a {
found := false
for _, bv := range b {
if av == bv {
found = true
break
}
}
if !found {
return false
}
}
return true
}
func TestMapEach(t *testing.T) {
m := NewWithStringComparator()
m.Put("c", 3)
m.Put("a", 1)
m.Put("b", 2)
count := 0
m.Each(func(key interface{}, value interface{}) {
count++
if actualValue, expectedValue := count, value; actualValue != expectedValue {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
switch value {
case 1:
if actualValue, expectedValue := key, "a"; actualValue != expectedValue {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
case 2:
if actualValue, expectedValue := key, "b"; actualValue != expectedValue {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
case 3:
if actualValue, expectedValue := key, "c"; actualValue != expectedValue {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
default:
t.Errorf("Too many")
}
})
}
func TestMapMap(t *testing.T) {
m := NewWithStringComparator()
m.Put("c", 3)
m.Put("a", 1)
m.Put("b", 2)
mappedMap := m.Map(func(key1 interface{}, value1 interface{}) (key2 interface{}, value2 interface{}) {
return key1, value1.(int) * value1.(int)
})
if actualValue, _ := mappedMap.Get("a"); actualValue != 1 {
t.Errorf("Got %v expected %v", actualValue, "mapped: a")
}
if actualValue, _ := mappedMap.Get("b"); actualValue != 4 {
t.Errorf("Got %v expected %v", actualValue, "mapped: b")
}
if actualValue, _ := mappedMap.Get("c"); actualValue != 9 {
t.Errorf("Got %v expected %v", actualValue, "mapped: c")
}
if mappedMap.Size() != 3 {
t.Errorf("Got %v expected %v", mappedMap.Size(), 3)
}
}
func TestMapSelect(t *testing.T) {
m := NewWithStringComparator()
m.Put("c", 3)
m.Put("a", 1)
m.Put("b", 2)
selectedMap := m.Select(func(key interface{}, value interface{}) bool {
return key.(string) >= "a" && key.(string) <= "b"
})
if actualValue, _ := selectedMap.Get("a"); actualValue != 1 {
t.Errorf("Got %v expected %v", actualValue, "value: a")
}
if actualValue, _ := selectedMap.Get("b"); actualValue != 2 {
t.Errorf("Got %v expected %v", actualValue, "value: b")
}
if selectedMap.Size() != 2 {
t.Errorf("Got %v expected %v", selectedMap.Size(), 2)
}
}
func TestMapAny(t *testing.T) {
m := NewWithStringComparator()
m.Put("c", 3)
m.Put("a", 1)
m.Put("b", 2)
any := m.Any(func(key interface{}, value interface{}) bool {
return value.(int) == 3
})
if any != true {
t.Errorf("Got %v expected %v", any, true)
}
any = m.Any(func(key interface{}, value interface{}) bool {
return value.(int) == 4
})
if any != false {
t.Errorf("Got %v expected %v", any, false)
}
}
func TestMapAll(t *testing.T) {
m := NewWithStringComparator()
m.Put("c", 3)
m.Put("a", 1)
m.Put("b", 2)
all := m.All(func(key interface{}, value interface{}) bool {
return key.(string) >= "a" && key.(string) <= "c"
})
if all != true {
t.Errorf("Got %v expected %v", all, true)
}
all = m.All(func(key interface{}, value interface{}) bool {
return key.(string) >= "a" && key.(string) <= "b"
})
if all != false {
t.Errorf("Got %v expected %v", all, false)
}
}
func TestMapFind(t *testing.T) {
m := NewWithStringComparator()
m.Put("c", 3)
m.Put("a", 1)
m.Put("b", 2)
foundKey, foundValue := m.Find(func(key interface{}, value interface{}) bool {
return key.(string) == "c"
})
if foundKey != "c" || foundValue != 3 {
t.Errorf("Got %v -> %v expected %v -> %v", foundKey, foundValue, "c", 3)
}
foundKey, foundValue = m.Find(func(key interface{}, value interface{}) bool {
return key.(string) == "x"
})
if foundKey != nil || foundValue != nil {
t.Errorf("Got %v at %v expected %v at %v", foundValue, foundKey, nil, nil)
}
}
func TestMapChaining(t *testing.T) {
m := NewWithStringComparator()
m.Put("c", 3)
m.Put("a", 1)
m.Put("b", 2)
chainedMap := m.Select(func(key interface{}, value interface{}) bool {
return value.(int) > 1
}).Map(func(key interface{}, value interface{}) (interface{}, interface{}) {
return key.(string) + key.(string), value.(int) * value.(int)
})
if actualValue := chainedMap.Size(); actualValue != 2 {
t.Errorf("Got %v expected %v", actualValue, 2)
}
if actualValue, found := chainedMap.Get("aa"); actualValue != nil || found {
t.Errorf("Got %v expected %v", actualValue, nil)
}
if actualValue, found := chainedMap.Get("bb"); actualValue != 4 || !found {
t.Errorf("Got %v expected %v", actualValue, 4)
}
if actualValue, found := chainedMap.Get("cc"); actualValue != 9 || !found {
t.Errorf("Got %v expected %v", actualValue, 9)
}
}
func TestMapIteratorNextOnEmpty(t *testing.T) {
m := NewWithStringComparator()
it := m.Iterator()
it = m.Iterator()
for it.Next() {
t.Errorf("Shouldn't iterate on empty map")
}
}
func TestMapIteratorPrevOnEmpty(t *testing.T) {
m := NewWithStringComparator()
it := m.Iterator()
it = m.Iterator()
for it.Prev() {
t.Errorf("Shouldn't iterate on empty map")
}
}
func TestMapIteratorNext(t *testing.T) {
m := NewWithStringComparator()
m.Put("c", 3)
m.Put("a", 1)
m.Put("b", 2)
it := m.Iterator()
count := 0
for it.Next() {
count++
key := it.Key()
value := it.Value()
switch key {
case "a":
if actualValue, expectedValue := value, 1; actualValue != expectedValue {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
case "b":
if actualValue, expectedValue := value, 2; actualValue != expectedValue {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
case "c":
if actualValue, expectedValue := value, 3; actualValue != expectedValue {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
default:
t.Errorf("Too many")
}
if actualValue, expectedValue := value, count; actualValue != expectedValue {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
}
if actualValue, expectedValue := count, 3; actualValue != expectedValue {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
}
func TestMapIteratorPrev(t *testing.T) {
m := NewWithStringComparator()
m.Put("c", 3)
m.Put("a", 1)
m.Put("b", 2)
it := m.Iterator()
for it.Next() {
}
countDown := m.Size()
for it.Prev() {
key := it.Key()
value := it.Value()
switch key {
case "a":
if actualValue, expectedValue := value, 1; actualValue != expectedValue {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
case "b":
if actualValue, expectedValue := value, 2; actualValue != expectedValue {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
case "c":
if actualValue, expectedValue := value, 3; actualValue != expectedValue {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
default:
t.Errorf("Too many")
}
if actualValue, expectedValue := value, countDown; actualValue != expectedValue {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
countDown--
}
if actualValue, expectedValue := countDown, 0; actualValue != expectedValue {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
}
func TestMapIteratorBegin(t *testing.T) {
m := NewWithIntComparator()
it := m.Iterator()
it.Begin()
m.Put(3, "c")
m.Put(1, "a")
m.Put(2, "b")
for it.Next() {
}
it.Begin()
it.Next()
if key, value := it.Key(), it.Value(); key != 1 || value != "a" {
t.Errorf("Got %v,%v expected %v,%v", key, value, 1, "a")
}
}
func TestMapTreeIteratorEnd(t *testing.T) {
m := NewWithIntComparator()
it := m.Iterator()
m.Put(3, "c")
m.Put(1, "a")
m.Put(2, "b")
it.End()
it.Prev()
if key, value := it.Key(), it.Value(); key != 3 || value != "c" {
t.Errorf("Got %v,%v expected %v,%v", key, value, 3, "c")
}
}
func TestMapIteratorFirst(t *testing.T) {
m := NewWithIntComparator()
m.Put(3, "c")
m.Put(1, "a")
m.Put(2, "b")
it := m.Iterator()
if actualValue, expectedValue := it.First(), true; actualValue != expectedValue {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
if key, value := it.Key(), it.Value(); key != 1 || value != "a" {
t.Errorf("Got %v,%v expected %v,%v", key, value, 1, "a")
}
}
func TestMapIteratorLast(t *testing.T) {
m := NewWithIntComparator()
m.Put(3, "c")
m.Put(1, "a")
m.Put(2, "b")
it := m.Iterator()
if actualValue, expectedValue := it.Last(), true; actualValue != expectedValue {
t.Errorf("Got %v expected %v", actualValue, expectedValue)
}
if key, value := it.Key(), it.Value(); key != 3 || value != "c" {
t.Errorf("Got %v,%v expected %v,%v", key, value, 3, "c")
}
}
func benchmarkGet(b *testing.B, m *Map, size int) {
for i := 0; i < b.N; i++ {
for n := 0; n < size; n++ {
m.Get(n)
}
}
}
func benchmarkPut(b *testing.B, m *Map, size int) {
for i := 0; i < b.N; i++ {
for n := 0; n < size; n++ {
m.Put(n, struct{}{})
}
}
}
func benchmarkRemove(b *testing.B, m *Map, size int) {
for i := 0; i < b.N; i++ {
for n := 0; n < size; n++ {
m.Remove(n)
}
}
}
func BenchmarkTreeMapGet100(b *testing.B) {
b.StopTimer()
size := 100
m := NewWithIntComparator()
for n := 0; n < size; n++ {
m.Put(n, struct{}{})
}
b.StartTimer()
benchmarkGet(b, m, size)
}
func BenchmarkTreeMapGet1000(b *testing.B) {
b.StopTimer()
size := 1000
m := NewWithIntComparator()
for n := 0; n < size; n++ {
m.Put(n, struct{}{})
}
b.StartTimer()
benchmarkGet(b, m, size)
}
func BenchmarkTreeMapGet10000(b *testing.B) {
b.StopTimer()
size := 10000
m := NewWithIntComparator()
for n := 0; n < size; n++ {
m.Put(n, struct{}{})
}
b.StartTimer()
benchmarkGet(b, m, size)
}
func BenchmarkTreeMapGet100000(b *testing.B) {
b.StopTimer()
size := 100000
m := NewWithIntComparator()
for n := 0; n < size; n++ {
m.Put(n, struct{}{})
}
b.StartTimer()
benchmarkGet(b, m, size)
}
func BenchmarkTreeMapPut100(b *testing.B) {
b.StopTimer()
size := 100
m := NewWithIntComparator()
b.StartTimer()
benchmarkPut(b, m, size)
}
func BenchmarkTreeMapPut1000(b *testing.B) {
b.StopTimer()
size := 1000
m := NewWithIntComparator()
for n := 0; n < size; n++ {
m.Put(n, struct{}{})
}
b.StartTimer()
benchmarkPut(b, m, size)
}
func BenchmarkTreeMapPut10000(b *testing.B) {
b.StopTimer()
size := 10000
m := NewWithIntComparator()
for n := 0; n < size; n++ {
m.Put(n, struct{}{})
}
b.StartTimer()
benchmarkPut(b, m, size)
}
func BenchmarkTreeMapPut100000(b *testing.B) {
b.StopTimer()
size := 100000
m := NewWithIntComparator()
for n := 0; n < size; n++ {
m.Put(n, struct{}{})
}
b.StartTimer()
benchmarkPut(b, m, size)
}
func BenchmarkTreeMapRemove100(b *testing.B) {
b.StopTimer()
size := 100
m := NewWithIntComparator()
for n := 0; n < size; n++ {
m.Put(n, struct{}{})
}
b.StartTimer()
benchmarkRemove(b, m, size)
}
func BenchmarkTreeMapRemove1000(b *testing.B) {
b.StopTimer()
size := 1000
m := NewWithIntComparator()
for n := 0; n < size; n++ {
m.Put(n, struct{}{})
}
b.StartTimer()
benchmarkRemove(b, m, size)
}
func BenchmarkTreeMapRemove10000(b *testing.B) {
b.StopTimer()
size := 10000
m := NewWithIntComparator()
for n := 0; n < size; n++ {
m.Put(n, struct{}{})
}
b.StartTimer()
benchmarkRemove(b, m, size)
}
func BenchmarkTreeMapRemove100000(b *testing.B) {
b.StopTimer()
size := 100000
m := NewWithIntComparator()
for n := 0; n < size; n++ {
m.Put(n, struct{}{})
}
b.StartTimer()
benchmarkRemove(b, m, size)
}