Working Trie

trie_test.go

@@ -0,0 +1,69 @@
+package main
+
+import (
+  "testing"
+  "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, "")
+
+  if err != nil {
+    t.Error("Error starting db")
+  }
+
+  key := trie.Put([]byte("testing node"))
+
+  data, err := db.Get(key)
+  if err != nil {
+    t.Error("Nothing at node")
+  }
+
+  s, _ := Decode(data, 0)
+  if str, ok := s.([]byte); ok {
+    if string(str) != "testing node" {
+      t.Error("Wrong value node", str)
+    }
+  } else {
+    t.Error("Invalid return type")
+  }
+}
+
+func TestTrieUpdate(t *testing.T) {
+  db, err := NewMemDatabase()
+  trie := NewTrie(db, "")
+
+  if err != nil {
+    t.Error("Error starting db")
+  }
+
+
+  trie.Update("doe", "reindeer")
+  trie.Update("dog", "puppy")
+  trie.Update("dogglesworth", "cat")
+  root := hex.EncodeToString([]byte(trie.root))
+  req := "e378927bfc1bd4f01a2e8d9f59bd18db8a208bb493ac0b00f93ce51d4d2af76c" 
+  if root != req {
+    t.Error("trie.root do not match, expected", req, "got", root)
+  }
+}
+