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775 lines
18 KiB
Go
775 lines
18 KiB
Go
// Copyright (c) 2015, Emir Pasic. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package linkedhashmap
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import (
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"encoding/json"
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"fmt"
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"strings"
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"testing"
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)
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func TestMapPut(t *testing.T) {
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m := New()
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m.Put(5, "e")
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m.Put(6, "f")
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m.Put(7, "g")
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m.Put(3, "c")
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m.Put(4, "d")
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m.Put(1, "x")
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m.Put(2, "b")
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m.Put(1, "a") //overwrite
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if actualValue := m.Size(); actualValue != 7 {
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t.Errorf("Got %v expected %v", actualValue, 7)
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}
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if actualValue, expectedValue := m.Keys(), []interface{}{5, 6, 7, 3, 4, 1, 2}; !sameElements(actualValue, expectedValue) {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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if actualValue, expectedValue := m.Values(), []interface{}{"e", "f", "g", "c", "d", "a", "b"}; !sameElements(actualValue, expectedValue) {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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// key,expectedValue,expectedFound
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tests1 := [][]interface{}{
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{1, "a", true},
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{2, "b", true},
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{3, "c", true},
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{4, "d", true},
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{5, "e", true},
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{6, "f", true},
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{7, "g", true},
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{8, nil, false},
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}
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for _, test := range tests1 {
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// retrievals
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actualValue, actualFound := m.Get(test[0])
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if actualValue != test[1] || actualFound != test[2] {
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t.Errorf("Got %v expected %v", actualValue, test[1])
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}
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}
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}
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func TestMapRemove(t *testing.T) {
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m := New()
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m.Put(5, "e")
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m.Put(6, "f")
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m.Put(7, "g")
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m.Put(3, "c")
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m.Put(4, "d")
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m.Put(1, "x")
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m.Put(2, "b")
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m.Put(1, "a") //overwrite
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m.Remove(5)
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m.Remove(6)
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m.Remove(7)
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m.Remove(8)
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m.Remove(5)
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if actualValue, expectedValue := m.Keys(), []interface{}{3, 4, 1, 2}; !sameElements(actualValue, expectedValue) {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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if actualValue, expectedValue := m.Values(), []interface{}{"c", "d", "a", "b"}; !sameElements(actualValue, expectedValue) {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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if actualValue := m.Size(); actualValue != 4 {
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t.Errorf("Got %v expected %v", actualValue, 4)
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}
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tests2 := [][]interface{}{
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{1, "a", true},
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{2, "b", true},
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{3, "c", true},
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{4, "d", true},
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{5, nil, false},
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{6, nil, false},
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{7, nil, false},
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{8, nil, false},
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}
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for _, test := range tests2 {
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actualValue, actualFound := m.Get(test[0])
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if actualValue != test[1] || actualFound != test[2] {
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t.Errorf("Got %v expected %v", actualValue, test[1])
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}
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}
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m.Remove(1)
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m.Remove(4)
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m.Remove(2)
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m.Remove(3)
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m.Remove(2)
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m.Remove(2)
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if actualValue, expectedValue := fmt.Sprintf("%s", m.Keys()), "[]"; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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if actualValue, expectedValue := fmt.Sprintf("%s", m.Values()), "[]"; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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if actualValue := m.Size(); actualValue != 0 {
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t.Errorf("Got %v expected %v", actualValue, 0)
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}
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if actualValue := m.Empty(); actualValue != true {
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t.Errorf("Got %v expected %v", actualValue, true)
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}
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}
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func sameElements(a []interface{}, b []interface{}) bool {
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// If one is nil, the other must also be nil.
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if (a == nil) != (b == nil) {
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return false
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}
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if len(a) != len(b) {
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return false
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}
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for i := range a {
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if a[i] != b[i] {
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return false
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}
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}
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return true
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}
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func TestMapEach(t *testing.T) {
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m := New()
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m.Put("c", 1)
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m.Put("a", 2)
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m.Put("b", 3)
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count := 0
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m.Each(func(key interface{}, value interface{}) {
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count++
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if actualValue, expectedValue := count, value; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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switch value {
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case 1:
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if actualValue, expectedValue := key, "c"; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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case 2:
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if actualValue, expectedValue := key, "a"; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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case 3:
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if actualValue, expectedValue := key, "b"; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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default:
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t.Errorf("Too many")
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}
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})
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}
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func TestMapMap(t *testing.T) {
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m := New()
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m.Put("c", 3)
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m.Put("a", 1)
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m.Put("b", 2)
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mappedMap := m.Map(func(key1 interface{}, value1 interface{}) (key2 interface{}, value2 interface{}) {
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return key1, value1.(int) * value1.(int)
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})
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if actualValue, _ := mappedMap.Get("c"); actualValue != 9 {
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t.Errorf("Got %v expected %v", actualValue, "mapped: c")
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}
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if actualValue, _ := mappedMap.Get("a"); actualValue != 1 {
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t.Errorf("Got %v expected %v", actualValue, "mapped: a")
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}
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if actualValue, _ := mappedMap.Get("b"); actualValue != 4 {
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t.Errorf("Got %v expected %v", actualValue, "mapped: b")
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}
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if mappedMap.Size() != 3 {
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t.Errorf("Got %v expected %v", mappedMap.Size(), 3)
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}
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}
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func TestMapSelect(t *testing.T) {
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m := New()
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m.Put("c", 3)
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m.Put("b", 1)
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m.Put("a", 2)
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selectedMap := m.Select(func(key interface{}, value interface{}) bool {
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return key.(string) >= "a" && key.(string) <= "b"
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})
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if actualValue, _ := selectedMap.Get("b"); actualValue != 1 {
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t.Errorf("Got %v expected %v", actualValue, "value: a")
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}
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if actualValue, _ := selectedMap.Get("a"); actualValue != 2 {
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t.Errorf("Got %v expected %v", actualValue, "value: b")
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}
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if selectedMap.Size() != 2 {
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t.Errorf("Got %v expected %v", selectedMap.Size(), 2)
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}
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}
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func TestMapAny(t *testing.T) {
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m := New()
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m.Put("c", 3)
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m.Put("a", 1)
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m.Put("b", 2)
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any := m.Any(func(key interface{}, value interface{}) bool {
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return value.(int) == 3
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})
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if any != true {
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t.Errorf("Got %v expected %v", any, true)
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}
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any = m.Any(func(key interface{}, value interface{}) bool {
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return value.(int) == 4
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})
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if any != false {
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t.Errorf("Got %v expected %v", any, false)
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}
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}
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func TestMapAll(t *testing.T) {
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m := New()
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m.Put("c", 3)
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m.Put("a", 1)
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m.Put("b", 2)
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all := m.All(func(key interface{}, value interface{}) bool {
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return key.(string) >= "a" && key.(string) <= "c"
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})
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if all != true {
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t.Errorf("Got %v expected %v", all, true)
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}
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all = m.All(func(key interface{}, value interface{}) bool {
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return key.(string) >= "a" && key.(string) <= "b"
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})
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if all != false {
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t.Errorf("Got %v expected %v", all, false)
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}
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}
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func TestMapFind(t *testing.T) {
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m := New()
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m.Put("c", 3)
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m.Put("a", 1)
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m.Put("b", 2)
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foundKey, foundValue := m.Find(func(key interface{}, value interface{}) bool {
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return key.(string) == "c"
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})
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if foundKey != "c" || foundValue != 3 {
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t.Errorf("Got %v -> %v expected %v -> %v", foundKey, foundValue, "c", 3)
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}
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foundKey, foundValue = m.Find(func(key interface{}, value interface{}) bool {
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return key.(string) == "x"
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})
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if foundKey != nil || foundValue != nil {
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t.Errorf("Got %v at %v expected %v at %v", foundValue, foundKey, nil, nil)
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}
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}
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func TestMapChaining(t *testing.T) {
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m := New()
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m.Put("c", 3)
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m.Put("a", 1)
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m.Put("b", 2)
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chainedMap := m.Select(func(key interface{}, value interface{}) bool {
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return value.(int) > 1
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}).Map(func(key interface{}, value interface{}) (interface{}, interface{}) {
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return key.(string) + key.(string), value.(int) * value.(int)
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})
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if actualValue := chainedMap.Size(); actualValue != 2 {
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t.Errorf("Got %v expected %v", actualValue, 2)
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}
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if actualValue, found := chainedMap.Get("aa"); actualValue != nil || found {
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t.Errorf("Got %v expected %v", actualValue, nil)
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}
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if actualValue, found := chainedMap.Get("bb"); actualValue != 4 || !found {
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t.Errorf("Got %v expected %v", actualValue, 4)
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}
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if actualValue, found := chainedMap.Get("cc"); actualValue != 9 || !found {
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t.Errorf("Got %v expected %v", actualValue, 9)
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}
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}
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func TestMapIteratorNextOnEmpty(t *testing.T) {
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m := New()
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it := m.Iterator()
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it = m.Iterator()
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for it.Next() {
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t.Errorf("Shouldn't iterate on empty map")
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}
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}
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func TestMapIteratorPrevOnEmpty(t *testing.T) {
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m := New()
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it := m.Iterator()
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it = m.Iterator()
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for it.Prev() {
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t.Errorf("Shouldn't iterate on empty map")
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}
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}
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func TestMapIteratorNext(t *testing.T) {
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m := New()
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m.Put("c", 1)
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m.Put("a", 2)
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m.Put("b", 3)
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it := m.Iterator()
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count := 0
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for it.Next() {
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count++
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key := it.Key()
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value := it.Value()
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switch key {
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case "c":
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if actualValue, expectedValue := value, 1; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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case "a":
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if actualValue, expectedValue := value, 2; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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case "b":
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if actualValue, expectedValue := value, 3; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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default:
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t.Errorf("Too many")
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}
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if actualValue, expectedValue := value, count; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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}
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if actualValue, expectedValue := count, 3; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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}
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func TestMapIteratorPrev(t *testing.T) {
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m := New()
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m.Put("c", 1)
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m.Put("a", 2)
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m.Put("b", 3)
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it := m.Iterator()
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for it.Next() {
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}
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countDown := m.Size()
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for it.Prev() {
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key := it.Key()
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value := it.Value()
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switch key {
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case "c":
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if actualValue, expectedValue := value, 1; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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case "a":
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if actualValue, expectedValue := value, 2; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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case "b":
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if actualValue, expectedValue := value, 3; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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default:
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t.Errorf("Too many")
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}
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if actualValue, expectedValue := value, countDown; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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countDown--
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}
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if actualValue, expectedValue := countDown, 0; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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}
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func TestMapIteratorBegin(t *testing.T) {
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m := New()
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it := m.Iterator()
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it.Begin()
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m.Put(3, "c")
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m.Put(1, "a")
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m.Put(2, "b")
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for it.Next() {
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}
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it.Begin()
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it.Next()
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if key, value := it.Key(), it.Value(); key != 3 || value != "c" {
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t.Errorf("Got %v,%v expected %v,%v", key, value, 3, "c")
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}
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}
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func TestMapIteratorEnd(t *testing.T) {
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m := New()
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it := m.Iterator()
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m.Put(3, "c")
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m.Put(1, "a")
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m.Put(2, "b")
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it.End()
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it.Prev()
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if key, value := it.Key(), it.Value(); key != 2 || value != "b" {
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t.Errorf("Got %v,%v expected %v,%v", key, value, 2, "b")
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}
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}
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func TestMapIteratorFirst(t *testing.T) {
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m := New()
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m.Put(3, "c")
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m.Put(1, "a")
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m.Put(2, "b")
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it := m.Iterator()
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if actualValue, expectedValue := it.First(), true; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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if key, value := it.Key(), it.Value(); key != 3 || value != "c" {
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t.Errorf("Got %v,%v expected %v,%v", key, value, 3, "c")
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}
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}
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func TestMapIteratorLast(t *testing.T) {
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m := New()
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m.Put(3, "c")
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m.Put(1, "a")
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m.Put(2, "b")
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it := m.Iterator()
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if actualValue, expectedValue := it.Last(), true; actualValue != expectedValue {
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t.Errorf("Got %v expected %v", actualValue, expectedValue)
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}
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if key, value := it.Key(), it.Value(); key != 2 || value != "b" {
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t.Errorf("Got %v,%v expected %v,%v", key, value, 2, "b")
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}
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}
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func TestMapIteratorNextTo(t *testing.T) {
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// Sample seek function, i.e. string starting with "b"
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seek := func(index interface{}, value interface{}) bool {
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return strings.HasSuffix(value.(string), "b")
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}
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// NextTo (empty)
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{
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m := New()
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it := m.Iterator()
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for it.NextTo(seek) {
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t.Errorf("Shouldn't iterate on empty map")
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}
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}
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// NextTo (not found)
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{
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m := New()
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m.Put(0, "xx")
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m.Put(1, "yy")
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it := m.Iterator()
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for it.NextTo(seek) {
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t.Errorf("Shouldn't iterate on empty map")
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}
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}
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// NextTo (found)
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{
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m := New()
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m.Put(0, "aa")
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m.Put(1, "bb")
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m.Put(2, "cc")
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it := m.Iterator()
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it.Begin()
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if !it.NextTo(seek) {
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t.Errorf("Shouldn't iterate on empty map")
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}
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if index, value := it.Key(), it.Value(); index != 1 || value.(string) != "bb" {
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t.Errorf("Got %v,%v expected %v,%v", index, value, 1, "bb")
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}
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if !it.Next() {
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t.Errorf("Should go to first element")
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}
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if index, value := it.Key(), it.Value(); index != 2 || value.(string) != "cc" {
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t.Errorf("Got %v,%v expected %v,%v", index, value, 2, "cc")
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}
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if it.Next() {
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t.Errorf("Should not go past last element")
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}
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}
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}
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func TestMapIteratorPrevTo(t *testing.T) {
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// Sample seek function, i.e. string starting with "b"
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seek := func(index interface{}, value interface{}) bool {
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return strings.HasSuffix(value.(string), "b")
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}
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// PrevTo (empty)
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{
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m := New()
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it := m.Iterator()
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it.End()
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for it.PrevTo(seek) {
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t.Errorf("Shouldn't iterate on empty map")
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}
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}
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// PrevTo (not found)
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{
|
|
m := New()
|
|
m.Put(0, "xx")
|
|
m.Put(1, "yy")
|
|
it := m.Iterator()
|
|
it.End()
|
|
for it.PrevTo(seek) {
|
|
t.Errorf("Shouldn't iterate on empty map")
|
|
}
|
|
}
|
|
|
|
// PrevTo (found)
|
|
{
|
|
m := New()
|
|
m.Put(0, "aa")
|
|
m.Put(1, "bb")
|
|
m.Put(2, "cc")
|
|
it := m.Iterator()
|
|
it.End()
|
|
if !it.PrevTo(seek) {
|
|
t.Errorf("Shouldn't iterate on empty map")
|
|
}
|
|
if index, value := it.Key(), it.Value(); index != 1 || value.(string) != "bb" {
|
|
t.Errorf("Got %v,%v expected %v,%v", index, value, 1, "bb")
|
|
}
|
|
if !it.Prev() {
|
|
t.Errorf("Should go to first element")
|
|
}
|
|
if index, value := it.Key(), it.Value(); index != 0 || value.(string) != "aa" {
|
|
t.Errorf("Got %v,%v expected %v,%v", index, value, 0, "aa")
|
|
}
|
|
if it.Prev() {
|
|
t.Errorf("Should not go before first element")
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestMapSerialization(t *testing.T) {
|
|
for i := 0; i < 10; i++ {
|
|
original := New()
|
|
original.Put("d", "4")
|
|
original.Put("e", "5")
|
|
original.Put("c", "3")
|
|
original.Put("b", "2")
|
|
original.Put("a", "1")
|
|
|
|
assertSerialization(original, "A", t)
|
|
|
|
serialized, err := original.ToJSON()
|
|
if err != nil {
|
|
t.Errorf("Got error %v", err)
|
|
}
|
|
assertSerialization(original, "B", t)
|
|
|
|
deserialized := New()
|
|
err = deserialized.FromJSON(serialized)
|
|
if err != nil {
|
|
t.Errorf("Got error %v", err)
|
|
}
|
|
assertSerialization(deserialized, "C", t)
|
|
}
|
|
|
|
m := New()
|
|
m.Put("a", 1.0)
|
|
m.Put("b", 2.0)
|
|
m.Put("c", 3.0)
|
|
|
|
_, err := json.Marshal([]interface{}{"a", "b", "c", m})
|
|
if err != nil {
|
|
t.Errorf("Got error %v", err)
|
|
}
|
|
|
|
err = json.Unmarshal([]byte(`{"a":1,"b":2}`), &m)
|
|
if err != nil {
|
|
t.Errorf("Got error %v", err)
|
|
}
|
|
}
|
|
|
|
func TestMapString(t *testing.T) {
|
|
c := New()
|
|
c.Put("a", 1)
|
|
if !strings.HasPrefix(c.String(), "LinkedHashMap") {
|
|
t.Errorf("String should start with container name")
|
|
}
|
|
}
|
|
|
|
//noinspection GoBoolExpressions
|
|
func assertSerialization(m *Map, txt string, t *testing.T) {
|
|
if actualValue := m.Keys(); false ||
|
|
actualValue[0].(string) != "d" ||
|
|
actualValue[1].(string) != "e" ||
|
|
actualValue[2].(string) != "c" ||
|
|
actualValue[3].(string) != "b" ||
|
|
actualValue[4].(string) != "a" {
|
|
t.Errorf("[%s] Got %v expected %v", txt, actualValue, "[d,e,c,b,a]")
|
|
}
|
|
if actualValue := m.Values(); false ||
|
|
actualValue[0].(string) != "4" ||
|
|
actualValue[1].(string) != "5" ||
|
|
actualValue[2].(string) != "3" ||
|
|
actualValue[3].(string) != "2" ||
|
|
actualValue[4].(string) != "1" {
|
|
t.Errorf("[%s] Got %v expected %v", txt, actualValue, "[4,5,3,2,1]")
|
|
}
|
|
if actualValue, expectedValue := m.Size(), 5; actualValue != expectedValue {
|
|
t.Errorf("[%s] Got %v expected %v", txt, actualValue, expectedValue)
|
|
}
|
|
}
|
|
|
|
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 := New()
|
|
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 := New()
|
|
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 := New()
|
|
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 := New()
|
|
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 := New()
|
|
b.StartTimer()
|
|
benchmarkPut(b, m, size)
|
|
}
|
|
|
|
func BenchmarkTreeMapPut1000(b *testing.B) {
|
|
b.StopTimer()
|
|
size := 1000
|
|
m := New()
|
|
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 := New()
|
|
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 := New()
|
|
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 := New()
|
|
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 := New()
|
|
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 := New()
|
|
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 := New()
|
|
for n := 0; n < size; n++ {
|
|
m.Put(n, struct{}{})
|
|
}
|
|
b.StartTimer()
|
|
benchmarkRemove(b, m, size)
|
|
}
|