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|
package secp256k1
import (
"strings"
"testing"
)
func TestBech32EncodeBasic(t *testing.T) {
data := []byte{0x00, 0x01, 0x02}
encoded, err := Bech32Encode("test", data)
if err != nil {
t.Fatalf("encoding failed: %v", err)
}
// Should start with hrp + "1"
if !strings.HasPrefix(encoded, "test1") {
t.Errorf("encoded should start with 'test1', got %s", encoded)
}
}
func TestBech32RoundTrip(t *testing.T) {
data := []byte{0xde, 0xad, 0xbe, 0xef}
encoded, err := Bech32Encode("test", data)
if err != nil {
t.Fatalf("encoding failed: %v", err)
}
hrp, decoded, err := Bech32Decode(encoded)
if err != nil {
t.Fatalf("decoding failed: %v", err)
}
if hrp != "test" {
t.Errorf("hrp mismatch: got %s, want test", hrp)
}
if len(decoded) != len(data) {
t.Fatalf("length mismatch: got %d, want %d", len(decoded), len(data))
}
for i := range data {
if decoded[i] != data[i] {
t.Errorf("byte %d mismatch: got %x, want %x", i, decoded[i], data[i])
}
}
}
func TestBech32DecodeInvalidChecksum(t *testing.T) {
// Valid encoding, then corrupt it
data := []byte{0x01, 0x02, 0x03}
encoded, _ := Bech32Encode("test", data)
// Corrupt last character
corrupted := encoded[:len(encoded)-1] + "q"
_, _, err := Bech32Decode(corrupted)
if err == nil {
t.Error("should reject invalid checksum")
}
}
func TestBech32DecodeInvalidCharacter(t *testing.T) {
_, _, err := Bech32Decode("test1invalid!")
if err == nil {
t.Error("should reject invalid character")
}
}
func TestNsecEncode(t *testing.T) {
priv, _ := NewPrivateKeyFromHex("0000000000000000000000000000000000000000000000000000000000000001")
nsec := priv.Nsec()
if !strings.HasPrefix(nsec, "nsec1") {
t.Errorf("nsec should start with 'nsec1', got %s", nsec)
}
}
func TestNpubEncode(t *testing.T) {
priv, _ := NewPrivateKeyFromHex("0000000000000000000000000000000000000000000000000000000000000001")
pub := priv.PublicKey()
npub := pub.Npub()
if !strings.HasPrefix(npub, "npub1") {
t.Errorf("npub should start with 'npub1', got %s", npub)
}
}
func TestNsecRoundTrip(t *testing.T) {
priv1, _ := GeneratePrivateKey()
nsec := priv1.Nsec()
priv2, err := PrivateKeyFromNsec(nsec)
if err != nil {
t.Fatalf("failed to parse nsec: %v", err)
}
if priv1.D.Cmp(priv2.D) != 0 {
t.Error("private key should survive nsec round-trip")
}
}
func TestNpubRoundTrip(t *testing.T) {
priv, _ := GeneratePrivateKey()
pub1 := priv.PublicKey()
npub := pub1.Npub()
pub2, err := PublicKeyFromNpub(npub)
if err != nil {
t.Fatalf("failed to parse npub: %v", err)
}
// X coordinates should match (y might differ in sign)
if pub1.Point.x.value.Cmp(pub2.Point.x.value) != 0 {
t.Error("public key x should survive npub round-trip")
}
}
func TestPrivateKeyFromNsecInvalid(t *testing.T) {
// Wrong prefix
_, err := PrivateKeyFromNsec("npub1qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq3xjaeh")
if err == nil {
t.Error("should reject npub as nsec")
}
}
func TestPublicKeyFromNpubInvalid(t *testing.T) {
// Wrong prefix
_, err := PublicKeyFromNpub("nsec1qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq0dcpx3")
if err == nil {
t.Error("should reject nsec as npub")
}
}
// Test with known private key
func TestKnownNostrKeyPair(t *testing.T) {
// Private key = 1, should give G as public key
priv, _ := NewPrivateKeyFromHex("0000000000000000000000000000000000000000000000000000000000000001")
nsec := priv.Nsec()
// Verify it starts with nsec and round-trips
if nsec[:5] != "nsec1" {
t.Errorf("nsec should start with nsec1, got %s", nsec)
}
// Parse it back
priv2, err := PrivateKeyFromNsec(nsec)
if err != nil {
t.Fatalf("failed to parse nsec: %v", err)
}
if priv.D.Cmp(priv2.D) != 0 {
t.Error("nsec round-trip failed")
}
// Public key should be G
pub := priv.PublicKey()
npub := pub.Npub()
if npub[:5] != "npub1" {
t.Errorf("npub should start with npub1, got %s", npub)
}
// Parse it back and verify x matches G
pub2, err := PublicKeyFromNpub(npub)
if err != nil {
t.Fatalf("failed to parse npub: %v", err)
}
if pub2.Point.x.value.Cmp(Gx) != 0 {
t.Error("npub should decode to G.x")
}
}
func TestSignAndVerifyWithNostrKeys(t *testing.T) {
// Create keys
priv, _ := GeneratePrivateKey()
nsec := priv.Nsec()
npub := priv.PublicKey().Npub()
// Parse them back
priv2, _ := PrivateKeyFromNsec(nsec)
pub2, _ := PublicKeyFromNpub(npub)
// Sign with parsed private key
message := []byte("hello nostr")
sig, err := Sign(priv2, message)
if err != nil {
t.Fatalf("signing failed: %v", err)
}
// Verify with parsed public key
if !Verify(pub2, message, sig) {
t.Error("signature should verify with parsed keys")
}
}
|
