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98 lines
2.0 KiB
98 lines
2.0 KiB
package ethutil
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import (
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_ "encoding/hex"
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_ "fmt"
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"testing"
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)
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const LONG_WORD = "1234567890abcdefghijklmnopqrstuvwxxzABCEFGHIJKLMNOPQRSTUVWXYZ"
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type MemDatabase struct {
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db map[string][]byte
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}
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func NewMemDatabase() (*MemDatabase, error) {
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db := &MemDatabase{db: make(map[string][]byte)}
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return db, nil
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}
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func (db *MemDatabase) Put(key []byte, value []byte) {
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db.db[string(key)] = value
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}
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func (db *MemDatabase) Get(key []byte) ([]byte, error) {
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return db.db[string(key)], nil
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}
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func (db *MemDatabase) Print() {}
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func (db *MemDatabase) Close() {}
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func (db *MemDatabase) LastKnownTD() []byte { return nil }
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func New() (*MemDatabase, *Trie) {
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db, _ := NewMemDatabase()
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return db, NewTrie(db, "")
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}
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func TestTrieSync(t *testing.T) {
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db, trie := New()
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trie.Update("dog", LONG_WORD)
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if len(db.db) != 0 {
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t.Error("Expected no data in database")
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}
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trie.Sync()
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if len(db.db) == 0 {
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t.Error("Expected data to be persisted")
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}
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}
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func TestTrieReset(t *testing.T) {
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_, trie := New()
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trie.Update("cat", LONG_WORD)
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if len(trie.cache.nodes) == 0 {
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t.Error("Expected cached nodes")
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}
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trie.cache.Undo()
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if len(trie.cache.nodes) != 0 {
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t.Error("Expected no nodes after undo")
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}
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}
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func TestTrieGet(t *testing.T) {
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_, trie := New()
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trie.Update("cat", LONG_WORD)
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x := trie.Get("cat")
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if x != LONG_WORD {
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t.Error("expected %s, got %s", LONG_WORD, x)
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}
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}
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func TestTrieUpdating(t *testing.T) {
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_, trie := New()
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trie.Update("cat", LONG_WORD)
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trie.Update("cat", LONG_WORD+"1")
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x := trie.Get("cat")
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if x != LONG_WORD+"1" {
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t.Error("expected %S, got %s", LONG_WORD+"1", x)
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}
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}
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func TestTrieCmp(t *testing.T) {
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_, trie1 := New()
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_, trie2 := New()
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trie1.Update("doge", LONG_WORD)
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trie2.Update("doge", LONG_WORD)
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if !trie1.Cmp(trie2) {
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t.Error("Expected tries to be equal")
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}
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trie1.Update("dog", LONG_WORD)
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trie2.Update("cat", LONG_WORD)
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if trie1.Cmp(trie2) {
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t.Errorf("Expected tries not to be equal %x %x", trie1.Root, trie2.Root)
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}
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}
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