prysm-pulse/beacon-chain/p2p/encoder/ssz_test.go
Preston Van Loon 784f4169ef
Check gossip message decoded length before decoding (#6663)
* Check gossip message decoded length before decoding
* gofmt
* Merge refs/heads/master into snappy-decodedlen-check
* Merge refs/heads/master into snappy-decodedlen-check
* Merge refs/heads/master into snappy-decodedlen-check
* @nisdas feedback
2020-07-21 19:14:34 +00:00

99 lines
2.9 KiB
Go

package encoder_test
import (
"bytes"
"encoding/binary"
"fmt"
"testing"
"github.com/gogo/protobuf/proto"
"github.com/prysmaticlabs/prysm/beacon-chain/p2p/encoder"
testpb "github.com/prysmaticlabs/prysm/proto/testing"
"github.com/prysmaticlabs/prysm/shared/params"
"github.com/prysmaticlabs/prysm/shared/testutil/assert"
"github.com/prysmaticlabs/prysm/shared/testutil/require"
)
func TestSszNetworkEncoder_RoundTrip(t *testing.T) {
e := &encoder.SszNetworkEncoder{}
testRoundTripWithLength(t, e)
testRoundTripWithGossip(t, e)
}
func TestSszNetworkEncoder_FailsSnappyLength(t *testing.T) {
e := &encoder.SszNetworkEncoder{}
att := &testpb.TestSimpleMessage{}
data := make([]byte, 32)
binary.PutUvarint(data, encoder.MaxGossipSize+32)
err := e.DecodeGossip(data, att)
require.ErrorContains(t, "gossip message exceeds max gossip size", err)
}
func testRoundTripWithLength(t *testing.T, e *encoder.SszNetworkEncoder) {
buf := new(bytes.Buffer)
msg := &testpb.TestSimpleMessage{
Foo: []byte("fooooo"),
Bar: 9001,
}
_, err := e.EncodeWithMaxLength(buf, msg)
require.NoError(t, err)
decoded := &testpb.TestSimpleMessage{}
require.NoError(t, e.DecodeWithMaxLength(buf, decoded))
if !proto.Equal(decoded, msg) {
t.Logf("decoded=%+v\n", decoded)
t.Error("Decoded message is not the same as original")
}
}
func testRoundTripWithGossip(t *testing.T, e *encoder.SszNetworkEncoder) {
buf := new(bytes.Buffer)
msg := &testpb.TestSimpleMessage{
Foo: []byte("fooooo"),
Bar: 9001,
}
_, err := e.EncodeGossip(buf, msg)
require.NoError(t, err)
decoded := &testpb.TestSimpleMessage{}
require.NoError(t, e.DecodeGossip(buf.Bytes(), decoded))
if !proto.Equal(decoded, msg) {
t.Logf("decoded=%+v\n", decoded)
t.Error("Decoded message is not the same as original")
}
}
func TestSszNetworkEncoder_EncodeWithMaxLength(t *testing.T) {
buf := new(bytes.Buffer)
msg := &testpb.TestSimpleMessage{
Foo: []byte("fooooo"),
Bar: 9001,
}
e := &encoder.SszNetworkEncoder{}
params.SetupTestConfigCleanup(t)
c := params.BeaconNetworkConfig()
c.MaxChunkSize = uint64(5)
params.OverrideBeaconNetworkConfig(c)
_, err := e.EncodeWithMaxLength(buf, msg)
wanted := fmt.Sprintf("which is larger than the provided max limit of %d", params.BeaconNetworkConfig().MaxChunkSize)
assert.ErrorContains(t, wanted, err)
}
func TestSszNetworkEncoder_DecodeWithMaxLength(t *testing.T) {
buf := new(bytes.Buffer)
msg := &testpb.TestSimpleMessage{
Foo: []byte("fooooo"),
Bar: 4242,
}
e := &encoder.SszNetworkEncoder{}
params.SetupTestConfigCleanup(t)
c := params.BeaconNetworkConfig()
maxChunkSize := uint64(5)
c.MaxChunkSize = maxChunkSize
params.OverrideBeaconNetworkConfig(c)
_, err := e.EncodeGossip(buf, msg)
require.NoError(t, err)
decoded := &testpb.TestSimpleMessage{}
err = e.DecodeWithMaxLength(buf, decoded)
wanted := fmt.Sprintf("goes over the provided max limit of %d", maxChunkSize)
assert.ErrorContains(t, wanted, err)
}