Moved some testing code

trie_test.go

@@ -5,24 +5,6 @@ import (
   "encoding/hex"
 )
 
-type MemDatabase struct {
-  db      map[string][]byte
-}
-
-func NewMemDatabase() (*MemDatabase, error) {
-  db := &MemDatabase{db: make(map[string][]byte)}
-
-  return db, nil
-}
-
-func (db *MemDatabase) Put(key []byte, value []byte) {
-  db.db[string(key)] = value
-}
-
-func (db *MemDatabase) Get(key []byte) ([]byte, error) {
-  return db.db[string(key)], nil
-}
-
 func TestTriePut(t *testing.T) {
   db, err := NewMemDatabase()
   trie := NewTrie(db, "")