neoneo-go/pkg/network/server_test.go

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package network
import (
"net"
"testing"
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"github.com/nspcc-dev/neo-go/pkg/network/payload"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestSendVersion(t *testing.T) {
var (
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s = newTestServer(t)
p = newLocalPeer(t, s)
)
s.Port = 3000
s.UserAgent = "/test/"
p.messageHandler = func(t *testing.T, msg *Message) {
assert.Equal(t, CMDVersion, msg.CommandType())
assert.IsType(t, msg.Payload, &payload.Version{})
version := msg.Payload.(*payload.Version)
assert.NotZero(t, version.Nonce)
assert.Equal(t, uint16(3000), version.Port)
assert.Equal(t, uint64(1), version.Services)
assert.Equal(t, uint32(0), version.Version)
assert.Equal(t, []byte("/test/"), version.UserAgent)
assert.Equal(t, uint32(0), version.StartHeight)
}
require.NoError(t, p.SendVersion())
}
// Server should reply with a verack after receiving a valid version.
func TestVerackAfterHandleVersionCmd(t *testing.T) {
var (
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s = newTestServer(t)
p = newLocalPeer(t, s)
)
na, _ := net.ResolveTCPAddr("tcp", "0.0.0.0:3000")
p.netaddr = *na
// Should have a verack
p.messageHandler = func(t *testing.T, msg *Message) {
assert.Equal(t, CMDVerack, msg.CommandType())
}
version := payload.NewVersion(1337, 3000, "/NEO-GO/", 0, true)
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require.NoError(t, s.handleVersionCmd(p, version))
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}
// Server should not reply with a verack after receiving a
// invalid version and disconnects the peer.
func TestServerNotSendsVerack(t *testing.T) {
var (
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s = newTestServer(t)
p = newLocalPeer(t, s)
p2 = newLocalPeer(t, s)
)
s.id = 1
finished := make(chan struct{})
go func() {
s.run()
close(finished)
}()
defer func() {
// close via quit as server was started via `run()`, not `Start()`
close(s.quit)
<-finished
}()
na, _ := net.ResolveTCPAddr("tcp", "0.0.0.0:3000")
p.netaddr = *na
p2.netaddr = *na
s.register <- p
// identical id's
version := payload.NewVersion(1, 3000, "/NEO-GO/", 0, true)
err := s.handleVersionCmd(p, version)
assert.NotNil(t, err)
assert.Equal(t, errIdenticalID, err)
// Different IDs, make handshake pass.
version.Nonce = 2
require.NoError(t, s.handleVersionCmd(p, version))
require.NoError(t, p.HandleVersionAck())
require.Equal(t, true, p.Handshaked())
// Second handshake from the same peer should fail.
s.register <- p2
err = s.handleVersionCmd(p2, version)
assert.NotNil(t, err)
require.Equal(t, errAlreadyConnected, err)
}
func TestRequestHeaders(t *testing.T) {
var (
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s = newTestServer(t)
p = newLocalPeer(t, s)
)
p.messageHandler = func(t *testing.T, msg *Message) {
assert.IsType(t, &payload.GetBlocks{}, msg.Payload)
assert.Equal(t, CMDGetHeaders, msg.CommandType())
}
s.requestHeaders(p)
}