Beginning work on UAPI and routing table

src/trie_test.go

@@ -0,0 +1,66 @@
+package main
+
+import (
+	"testing"
+)
+
+type testPairCommonBits struct {
+	s1    []byte
+	s2    []byte
+	match uint
+}
+
+type testPairTrieInsert struct {
+	key  []byte
+	cidr uint
+	peer *Peer
+}
+
+func printTrie(t *testing.T, p *Trie) {
+	if p == nil {
+		return
+	}
+	t.Log(p)
+	printTrie(t, p.child[0])
+	printTrie(t, p.child[1])
+}
+
+func TestCommonBits(t *testing.T) {
+
+	tests := []testPairCommonBits{
+		{s1: []byte{1, 4, 53, 128}, s2: []byte{0, 0, 0, 0}, match: 7},
+		{s1: []byte{0, 4, 53, 128}, s2: []byte{0, 0, 0, 0}, match: 13},
+		{s1: []byte{0, 4, 53, 253}, s2: []byte{0, 4, 53, 252}, match: 31},
+		{s1: []byte{192, 168, 1, 1}, s2: []byte{192, 169, 1, 1}, match: 15},
+		{s1: []byte{65, 168, 1, 1}, s2: []byte{192, 169, 1, 1}, match: 0},
+	}
+
+	for _, p := range tests {
+		v := commonBits(p.s1, p.s2)
+		if v != p.match {
+			t.Error(
+				"For slice", p.s1, p.s2,
+				"expected match", p.match,
+				"got", v,
+			)
+		}
+	}
+}
+
+func TestTrieInsertV4(t *testing.T) {
+	var trie *Trie
+
+	peer1 := Peer{}
+	peer2 := Peer{}
+
+	tests := []testPairTrieInsert{
+		{key: []byte{192, 168, 1, 1}, cidr: 24, peer: &peer1},
+		{key: []byte{192, 169, 1, 1}, cidr: 24, peer: &peer2},
+	}
+
+	for _, p := range tests {
+		trie = trie.Insert(p.key, p.cidr, p.peer)
+		printTrie(t, trie)
+	}
+
+}