diff options
Diffstat (limited to 'p2p/enode/node_test.go')
| -rw-r--r-- | p2p/enode/node_test.go | 87 |
1 files changed, 85 insertions, 2 deletions
diff --git a/p2p/enode/node_test.go b/p2p/enode/node_test.go index 861a70bd6..d15859c47 100644 --- a/p2p/enode/node_test.go +++ b/p2p/enode/node_test.go @@ -17,9 +17,12 @@ package enode import ( + "bytes" "encoding/hex" "fmt" + "math/big" "testing" + "testing/quick" "github.com/ethereum/go-ethereum/p2p/enr" "github.com/ethereum/go-ethereum/rlp" @@ -43,7 +46,7 @@ func TestPythonInterop(t *testing.T) { var ( wantID = HexID("a448f24c6d18e575453db13171562b71999873db5b286df957af199ec94617f7") wantSeq = uint64(1) - wantIP = enr.IP{127, 0, 0, 1} + wantIP = enr.IPv4{127, 0, 0, 1} wantUDP = enr.UDP(30303) ) if n.Seq() != wantSeq { @@ -52,7 +55,7 @@ func TestPythonInterop(t *testing.T) { if n.ID() != wantID { t.Errorf("wrong id: got %x, want %x", n.ID(), wantID) } - want := map[enr.Entry]interface{}{new(enr.IP): &wantIP, new(enr.UDP): &wantUDP} + want := map[enr.Entry]interface{}{new(enr.IPv4): &wantIP, new(enr.UDP): &wantUDP} for k, v := range want { desc := fmt.Sprintf("loading key %q", k.ENRKey()) if assert.NoError(t, n.Load(k), desc) { @@ -60,3 +63,83 @@ func TestPythonInterop(t *testing.T) { } } } + +func TestHexID(t *testing.T) { + ref := ID{0, 0, 0, 0, 0, 0, 0, 128, 106, 217, 182, 31, 165, 174, 1, 67, 7, 235, 220, 150, 66, 83, 173, 205, 159, 44, 10, 57, 42, 161, 26, 188} + id1 := HexID("0x00000000000000806ad9b61fa5ae014307ebdc964253adcd9f2c0a392aa11abc") + id2 := HexID("00000000000000806ad9b61fa5ae014307ebdc964253adcd9f2c0a392aa11abc") + + if id1 != ref { + t.Errorf("wrong id1\ngot %v\nwant %v", id1[:], ref[:]) + } + if id2 != ref { + t.Errorf("wrong id2\ngot %v\nwant %v", id2[:], ref[:]) + } +} + +func TestID_textEncoding(t *testing.T) { + ref := ID{ + 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x10, + 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x20, + 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x30, + 0x31, 0x32, + } + hex := "0102030405060708091011121314151617181920212223242526272829303132" + + text, err := ref.MarshalText() + if err != nil { + t.Fatal(err) + } + if !bytes.Equal(text, []byte(hex)) { + t.Fatalf("text encoding did not match\nexpected: %s\ngot: %s", hex, text) + } + + id := new(ID) + if err := id.UnmarshalText(text); err != nil { + t.Fatal(err) + } + if *id != ref { + t.Fatalf("text decoding did not match\nexpected: %s\ngot: %s", ref, id) + } +} + +func TestID_distcmp(t *testing.T) { + distcmpBig := func(target, a, b ID) int { + tbig := new(big.Int).SetBytes(target[:]) + abig := new(big.Int).SetBytes(a[:]) + bbig := new(big.Int).SetBytes(b[:]) + return new(big.Int).Xor(tbig, abig).Cmp(new(big.Int).Xor(tbig, bbig)) + } + if err := quick.CheckEqual(DistCmp, distcmpBig, nil); err != nil { + t.Error(err) + } +} + +// The random tests is likely to miss the case where a and b are equal, +// this test checks it explicitly. +func TestID_distcmpEqual(t *testing.T) { + base := ID{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15} + x := ID{15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0} + if DistCmp(base, x, x) != 0 { + t.Errorf("DistCmp(base, x, x) != 0") + } +} + +func TestID_logdist(t *testing.T) { + logdistBig := func(a, b ID) int { + abig, bbig := new(big.Int).SetBytes(a[:]), new(big.Int).SetBytes(b[:]) + return new(big.Int).Xor(abig, bbig).BitLen() + } + if err := quick.CheckEqual(LogDist, logdistBig, nil); err != nil { + t.Error(err) + } +} + +// The random tests is likely to miss the case where a and b are equal, +// this test checks it explicitly. +func TestID_logdistEqual(t *testing.T) { + x := ID{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15} + if LogDist(x, x) != 0 { + t.Errorf("LogDist(x, x) != 0") + } +} |