test: public_key and resolver (#147)

waku/v2/discovery/public_key_test.go

@@ -0,0 +1,49 @@
+package discovery
+
+import (
+	"crypto/ecdsa"
+	"crypto/rand"
+	"testing"
+
+	"github.com/libp2p/go-libp2p-core/crypto"
+	pb "github.com/libp2p/go-libp2p-core/crypto/pb"
+	"github.com/minio/sha256-simd"
+	"github.com/stretchr/testify/require"
+)
+
+func TestBasicEquals(t *testing.T) {
+	_, pub1, err := crypto.GenerateECDSAKeyPair(rand.Reader)
+	require.NoError(t, err)
+
+	_, pub2, err := crypto.GenerateECDSAKeyPair(rand.Reader)
+	require.NoError(t, err)
+
+	require.False(t, basicEquals(pub1, pub2))
+	require.True(t, basicEquals(pub1, pub1))
+}
+
+func TestSignAndVerify(t *testing.T) {
+	priv1, err := ecdsa.GenerateKey(crypto.ECDSACurve, rand.Reader)
+	require.NoError(t, err)
+	pub1 := ECDSAPublicKey{pub: &priv1.PublicKey}
+
+	require.Equal(t, pb.KeyType_Secp256k1, pub1.Type())
+
+	msg := []byte("hello world")
+
+	data := sha256.Sum256(msg)
+	sig, err := priv1.Sign(rand.Reader, data[:], nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	ok, err := pub1.Verify(msg, sig)
+	require.NoError(t, err)
+	require.True(t, ok)
+
+	// change data
+	data[0] = ^data[0]
+	ok, err = pub1.Verify(data[:], sig)
+	require.NoError(t, err)
+	require.False(t, ok)
+}

waku/v2/discovery/resolver_test.go

@@ -0,0 +1,26 @@
+package discovery
+
+import (
+	"context"
+	"net"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestResolver(t *testing.T) {
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	resolver1 := GetResolver(ctx, "")
+	require.Equal(t, net.DefaultResolver, resolver1)
+
+	resolver2 := GetResolver(ctx, "1.1.1.1")
+	require.NotEqual(t, net.DefaultResolver, resolver2)
+	require.True(t, resolver2.PreferGo)
+
+	cname, err := resolver2.LookupCNAME(ctx, "status.im")
+	require.NoError(t, err)
+	require.Equal(t, "status.im.", cname)
+}