diff options
Diffstat (limited to 'trie_test.go')
| -rw-r--r-- | trie_test.go | 260 |
1 files changed, 0 insertions, 260 deletions
diff --git a/trie_test.go b/trie_test.go deleted file mode 100644 index 3c3b5ba..0000000 --- a/trie_test.go +++ /dev/null @@ -1,260 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 - * - * Copyright (C) 2017-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. - */ - -package main - -import ( - "math/rand" - "net" - "testing" -) - -/* Todo: More comprehensive - */ - -type testPairCommonBits struct { - s1 []byte - s2 []byte - match uint -} - -type testPairTrieInsert struct { - key []byte - cidr uint - peer *Peer -} - -type testPairTrieLookup struct { - key []byte - 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, - ",but got", v, - ) - } - } -} - -func benchmarkTrie(peerNumber int, addressNumber int, addressLength int, b *testing.B) { - var trie *Trie - var peers []*Peer - - rand.Seed(1) - - const AddressLength = 4 - - for n := 0; n < peerNumber; n += 1 { - peers = append(peers, &Peer{}) - } - - for n := 0; n < addressNumber; n += 1 { - var addr [AddressLength]byte - rand.Read(addr[:]) - cidr := uint(rand.Uint32() % (AddressLength * 8)) - index := rand.Int() % peerNumber - trie = trie.Insert(addr[:], cidr, peers[index]) - } - - for n := 0; n < b.N; n += 1 { - var addr [AddressLength]byte - rand.Read(addr[:]) - trie.Lookup(addr[:]) - } -} - -func BenchmarkTrieIPv4Peers100Addresses1000(b *testing.B) { - benchmarkTrie(100, 1000, net.IPv4len, b) -} - -func BenchmarkTrieIPv4Peers10Addresses10(b *testing.B) { - benchmarkTrie(10, 10, net.IPv4len, b) -} - -func BenchmarkTrieIPv6Peers100Addresses1000(b *testing.B) { - benchmarkTrie(100, 1000, net.IPv6len, b) -} - -func BenchmarkTrieIPv6Peers10Addresses10(b *testing.B) { - benchmarkTrie(10, 10, net.IPv6len, b) -} - -/* Test ported from kernel implementation: - * selftest/routingtable.h - */ -func TestTrieIPv4(t *testing.T) { - a := &Peer{} - b := &Peer{} - c := &Peer{} - d := &Peer{} - e := &Peer{} - g := &Peer{} - h := &Peer{} - - var trie *Trie - - insert := func(peer *Peer, a, b, c, d byte, cidr uint) { - trie = trie.Insert([]byte{a, b, c, d}, cidr, peer) - } - - assertEQ := func(peer *Peer, a, b, c, d byte) { - p := trie.Lookup([]byte{a, b, c, d}) - if p != peer { - t.Error("Assert EQ failed") - } - } - - assertNEQ := func(peer *Peer, a, b, c, d byte) { - p := trie.Lookup([]byte{a, b, c, d}) - if p == peer { - t.Error("Assert NEQ failed") - } - } - - insert(a, 192, 168, 4, 0, 24) - insert(b, 192, 168, 4, 4, 32) - insert(c, 192, 168, 0, 0, 16) - insert(d, 192, 95, 5, 64, 27) - insert(c, 192, 95, 5, 65, 27) - insert(e, 0, 0, 0, 0, 0) - insert(g, 64, 15, 112, 0, 20) - insert(h, 64, 15, 123, 211, 25) - insert(a, 10, 0, 0, 0, 25) - insert(b, 10, 0, 0, 128, 25) - insert(a, 10, 1, 0, 0, 30) - insert(b, 10, 1, 0, 4, 30) - insert(c, 10, 1, 0, 8, 29) - insert(d, 10, 1, 0, 16, 29) - - assertEQ(a, 192, 168, 4, 20) - assertEQ(a, 192, 168, 4, 0) - assertEQ(b, 192, 168, 4, 4) - assertEQ(c, 192, 168, 200, 182) - assertEQ(c, 192, 95, 5, 68) - assertEQ(e, 192, 95, 5, 96) - assertEQ(g, 64, 15, 116, 26) - assertEQ(g, 64, 15, 127, 3) - - insert(a, 1, 0, 0, 0, 32) - insert(a, 64, 0, 0, 0, 32) - insert(a, 128, 0, 0, 0, 32) - insert(a, 192, 0, 0, 0, 32) - insert(a, 255, 0, 0, 0, 32) - - assertEQ(a, 1, 0, 0, 0) - assertEQ(a, 64, 0, 0, 0) - assertEQ(a, 128, 0, 0, 0) - assertEQ(a, 192, 0, 0, 0) - assertEQ(a, 255, 0, 0, 0) - - trie = trie.RemovePeer(a) - - assertNEQ(a, 1, 0, 0, 0) - assertNEQ(a, 64, 0, 0, 0) - assertNEQ(a, 128, 0, 0, 0) - assertNEQ(a, 192, 0, 0, 0) - assertNEQ(a, 255, 0, 0, 0) - - trie = nil - - insert(a, 192, 168, 0, 0, 16) - insert(a, 192, 168, 0, 0, 24) - - trie = trie.RemovePeer(a) - - assertNEQ(a, 192, 168, 0, 1) -} - -/* Test ported from kernel implementation: - * selftest/routingtable.h - */ -func TestTrieIPv6(t *testing.T) { - a := &Peer{} - b := &Peer{} - c := &Peer{} - d := &Peer{} - e := &Peer{} - f := &Peer{} - g := &Peer{} - h := &Peer{} - - var trie *Trie - - expand := func(a uint32) []byte { - var out [4]byte - out[0] = byte(a >> 24 & 0xff) - out[1] = byte(a >> 16 & 0xff) - out[2] = byte(a >> 8 & 0xff) - out[3] = byte(a & 0xff) - return out[:] - } - - insert := func(peer *Peer, a, b, c, d uint32, cidr uint) { - var addr []byte - addr = append(addr, expand(a)...) - addr = append(addr, expand(b)...) - addr = append(addr, expand(c)...) - addr = append(addr, expand(d)...) - trie = trie.Insert(addr, cidr, peer) - } - - assertEQ := func(peer *Peer, a, b, c, d uint32) { - var addr []byte - addr = append(addr, expand(a)...) - addr = append(addr, expand(b)...) - addr = append(addr, expand(c)...) - addr = append(addr, expand(d)...) - p := trie.Lookup(addr) - if p != peer { - t.Error("Assert EQ failed") - } - } - - insert(d, 0x26075300, 0x60006b00, 0, 0xc05f0543, 128) - insert(c, 0x26075300, 0x60006b00, 0, 0, 64) - insert(e, 0, 0, 0, 0, 0) - insert(f, 0, 0, 0, 0, 0) - insert(g, 0x24046800, 0, 0, 0, 32) - insert(h, 0x24046800, 0x40040800, 0xdeadbeef, 0xdeadbeef, 64) - insert(a, 0x24046800, 0x40040800, 0xdeadbeef, 0xdeadbeef, 128) - insert(c, 0x24446800, 0x40e40800, 0xdeaebeef, 0xdefbeef, 128) - insert(b, 0x24446800, 0xf0e40800, 0xeeaebeef, 0, 98) - - assertEQ(d, 0x26075300, 0x60006b00, 0, 0xc05f0543) - assertEQ(c, 0x26075300, 0x60006b00, 0, 0xc02e01ee) - assertEQ(f, 0x26075300, 0x60006b01, 0, 0) - assertEQ(g, 0x24046800, 0x40040806, 0, 0x1006) - assertEQ(g, 0x24046800, 0x40040806, 0x1234, 0x5678) - assertEQ(f, 0x240467ff, 0x40040806, 0x1234, 0x5678) - assertEQ(f, 0x24046801, 0x40040806, 0x1234, 0x5678) - assertEQ(h, 0x24046800, 0x40040800, 0x1234, 0x5678) - assertEQ(h, 0x24046800, 0x40040800, 0, 0) - assertEQ(h, 0x24046800, 0x40040800, 0x10101010, 0x10101010) - assertEQ(a, 0x24046800, 0x40040800, 0xdeadbeef, 0xdeadbeef) -} |