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// Copyright (c) 2014 The go-patricia AUTHORS
//
// Use of this source code is governed by The MIT License
// that can be found in the LICENSE file.
package patricia
import (
"testing"
)
// Tests -----------------------------------------------------------------------
func TestTrie_InsertDense(t *testing.T) {
trie := NewTrie()
data := []testData{
{"aba", 0, success},
{"abb", 1, success},
{"abc", 2, success},
{"abd", 3, success},
{"abe", 4, success},
{"abf", 5, success},
{"abg", 6, success},
{"abh", 7, success},
{"abi", 8, success},
{"abj", 9, success},
{"abk", 0, success},
{"abl", 1, success},
{"abm", 2, success},
{"abn", 3, success},
{"abo", 4, success},
{"abp", 5, success},
{"abq", 6, success},
{"abr", 7, success},
{"abs", 8, success},
{"abt", 9, success},
{"abu", 0, success},
{"abv", 1, success},
{"abw", 2, success},
{"abx", 3, success},
{"aby", 4, success},
{"abz", 5, success},
}
for _, v := range data {
t.Logf("INSERT prefix=%v, item=%v, success=%v", v.key, v.value, v.retVal)
if ok := trie.Insert(Prefix(v.key), v.value); ok != v.retVal {
t.Errorf("Unexpected return value, expected=%v, got=%v", v.retVal, ok)
}
}
}
func TestTrie_InsertDensePreceeding(t *testing.T) {
trie := NewTrie()
start := byte(70)
// create a dense node
for i := byte(0); i <= MaxChildrenPerSparseNode; i++ {
if !trie.Insert(Prefix([]byte{start + i}), true) {
t.Errorf("insert failed, prefix=%v", start+i)
}
}
// insert some preceeding keys
for i := byte(1); i < start; i *= i + 1 {
if !trie.Insert(Prefix([]byte{start - i}), true) {
t.Errorf("insert failed, prefix=%v", start-i)
}
}
}
func TestTrie_InsertDenseDuplicatePrefixes(t *testing.T) {
trie := NewTrie()
data := []testData{
{"aba", 0, success},
{"abb", 1, success},
{"abc", 2, success},
{"abd", 3, success},
{"abe", 4, success},
{"abf", 5, success},
{"abg", 6, success},
{"abh", 7, success},
{"abi", 8, success},
{"abj", 9, success},
{"abk", 0, success},
{"abl", 1, success},
{"abm", 2, success},
{"abn", 3, success},
{"abo", 4, success},
{"abp", 5, success},
{"abq", 6, success},
{"abr", 7, success},
{"abs", 8, success},
{"abt", 9, success},
{"abu", 0, success},
{"abv", 1, success},
{"abw", 2, success},
{"abx", 3, success},
{"aby", 4, success},
{"abz", 5, success},
{"aba", 0, failure},
{"abb", 1, failure},
{"abc", 2, failure},
{"abd", 3, failure},
{"abe", 4, failure},
}
for _, v := range data {
t.Logf("INSERT prefix=%v, item=%v, success=%v", v.key, v.value, v.retVal)
if ok := trie.Insert(Prefix(v.key), v.value); ok != v.retVal {
t.Errorf("Unexpected return value, expected=%v, got=%v", v.retVal, ok)
}
}
}
func TestTrie_DeleteDense(t *testing.T) {
trie := NewTrie()
data := []testData{
{"aba", 0, success},
{"abb", 1, success},
{"abc", 2, success},
{"abd", 3, success},
{"abe", 4, success},
{"abf", 5, success},
{"abg", 6, success},
{"abh", 7, success},
{"abi", 8, success},
{"abj", 9, success},
{"abk", 0, success},
{"abl", 1, success},
{"abm", 2, success},
{"abn", 3, success},
{"abo", 4, success},
{"abp", 5, success},
{"abq", 6, success},
{"abr", 7, success},
{"abs", 8, success},
{"abt", 9, success},
{"abu", 0, success},
{"abv", 1, success},
{"abw", 2, success},
{"abx", 3, success},
{"aby", 4, success},
{"abz", 5, success},
}
for _, v := range data {
t.Logf("INSERT prefix=%v, item=%v, success=%v", v.key, v.value, v.retVal)
if ok := trie.Insert(Prefix(v.key), v.value); ok != v.retVal {
t.Errorf("Unexpected return value, expected=%v, got=%v", v.retVal, ok)
}
}
for _, v := range data {
t.Logf("DELETE word=%v, success=%v", v.key, v.retVal)
if ok := trie.Delete([]byte(v.key)); ok != v.retVal {
t.Errorf("Unexpected return value, expected=%v, got=%v", v.retVal, ok)
}
}
}
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